The Astronomy Show

 Join me, Martin Lunn MBE for a festive Astronomy Show tonight from 7.00 pm-9.00 pm on the Astronomy Show, probably the only regular astronomy show on any radio station in the country.

There will be all the regular features plus lots of Christmas cracker jokes to take everyone into an intergalactic festive period.

The Astronomy Show every Monday evening only on Drystone Radio live on line at www.drystoneradio.com DAB radio in Bradford and East Lancashire, or 102 and 103.5 FM and can also be heard later on the Drystone Radio Podcast.

The Winter Solstice

 The winter solstice, when the Sun lies at its lowest point in the sky, occurs on December 22 this year. It is the shortest day and longest night of the year. This is the beginning of the pagan feast of Yule or Yuletide or Sol Invictus ‘The Undefeated Sun’ when there would traditional been a period celebrations.

This is when winter officially begins in the northern hemisphere and summer begins in the southern hemisphere.

                                                        www.theramblingastronomer.co.uk

The Moon glides past Jupiter on December 21st and 22nd

 As soon as it gets dark on the evenings of December 21^st and 22^nd 2023 the Moon can be seen close to the planet Jupiter. This does of course assume that there are no clouds to block the view. They can be seen together throughout the evening until they both set.

On the 21^st the Moon will be right of Jupiter. The following evening December 22^nd the Moon will be to the left of Jupiter.

                                                            www.theramblingastronomer.co.uk

Leeds Astronomical Society in 1892

 

Leeds Mercury Saturday 10^th December 1892

LEEDS ASTRONOMICAL SOCIETY.

A meeting of the members of the Leeds Astronomical Society was held on Monday in the library of the philosophical Hall ark-row, for the purpose for the purpose of submitting a scheme for the future conduct of the society, and for the enrolment of members. Mr. Washington Teasdale, F.R.A.S., occupied the chair, and amongst those present were Mr. W. D. Barbour (treasurer). Mr. H. Stockwell (secretary), Mr. S Jefferson, Mr. H. J. Townshed, Mr. D. Booth, Mr. E R. Blakeley (Dewsbury), Mr. Marshall (Church Institute), Mr. Wm. Neil, and others.

At a preliminary meeting of the committee of the society was decided to invite Sir Robert Ball to become honorary President of the society, and that Mr. Washington should continue to be the acting President. —The Chairman said that they had recently held a meeting for the purpose of forming an Astronomical Society, or rather reorganising one which had formerly existed, for Mr Barbour had, fortunately, preserved the record, the Astronomical Society which was formed 1859. They were impelled to do so because had become aware that there were in Leeds a number of students of astronomy who were sending their communications to other societies which were in active existence.

Their society had only been a state of passive existence, and it was only through the Journals of these outside societies that they had become acquainted with each other as astronomical students. He then called on the secretary (Mr. Stockwell), who read a letter from the "Leeds Mercury Supplement." setting forth the objects of the promoter of the meeting. He then read the minutes of two previous meetings, these including the rules that hart been framed and agreed upon. The Chairman said that he felt certain that in a little the value of an astronomical society for Leeds would be thoroughly appreciated and that if once they got established as a working society many would join both in Leeds and the surrounding neighbourhood. They then must promote cordial co-operation with other philological societies, for the astronomer was now largely dependent upon the special knowledge of workers in other branches of science, such as the geologist. the chemist, the photographer, and so forth.—Mr. Barbour, who was treasurer of the original society, gave some account of its proceedings, mentioning that the fine telescope which was handed by the members over to the Yorkshire College. dared say they could have it back again if they asked for it- Mr David Booth, the next speaker, said he quite agreed that a distinct society for the of astronomy be formed for Leeds.

When they got well established they could consider the question joining the British Astronomical Association.—Mr. Townshend said he hoped thev should he able to regain possession of the telescope and obtain a suitable observatory.— Mr Blakeley said he wished to dispel a very prevalent idea, that in order to study astronomy one must necessarily possess a telescope. There was a great deal to study in it without making any use philosophical instruments. A very great deal could be seen with an ordinarily good opera-glass, such, for example, as the satellite’s of Jupiter. Then meteorology was a branch of astronomy. and their friend Mr. Booth, who was an eminent meteorologist, would tell them that no optical instruments were necessary in making meteorological observations.

He hoped to be able to obtain a lumber of members from the Dewsbury district. (Applause.)— Mr. Townshend mentioned that there was an astronomical society at Sheffield, and that its members had the use an observatory belonging to the Corporation of that town two days every week. In reply to Mr. Barbour, he said that members of the Leeds society could, if they so wished, have the use of that observatory.—The Chairman mid it might be interesting to know that the present Assistant Astronomer Royal, Mr. Turner, was a Leeds man. (Applause.) Mr. Turner was also the secretary of the official journal the Royal Astronomical Society. He (the Chairman) trusted they should obtain lady members. (Hear, hear.) —Mr. John Roberts, who was a member the old Leeds Astronomical Society, Mr. Brooks, and other gentlemen having spoken, the proceedings terminated. Several new members were enrolled.

                                                       www.theramblingastronomer.co.uk

Lord Tennyson, Sir Norman Lockyer and a Thomas Cooke telescope

 

Westminster Gazette Monday 12^th December 1910

The very interesting little book, " Tennyson as a Student and Poet of Nature," by Sir Norman Lockyer, K.C.8., and Winifred L. Lockyer just published by Messrs. Macmillan (4s. M. net), contains the passages in the late Laureates works which deal with the scientific aspects of nature. "

All such references have been brought together and classified, and by means of notes kindly supplied by various authorities it has been shown how very true to fact Tennyson's descriptions are and how keen and careful an observer be was." Quite a number of prominent scientific authorities have given their assistance, and Lord Tennyson has also read some of the proofs and made suggestions.

In the matter of nature knowledge, Dante, it is contended, is the only poet Who can be even named along with Tennyson. Sir Norman Lockyer, in his preface, tells of his own meetings with Tennyson, and of the great interest the poet always took in matters scientific.

Sir Norman was living in 1864 at West Hampstead, and had erected his 6in. Cooke Equatorial in the garden, and concerning Tennyson he says : I soon found that he was an enthusiastic astronomer. and that few points of the descriptive part of the subject had escaped him. He was, therefore. often in the observatory. Some of his remarks still linger fresh in my memory. One night the moon’s terminator swept across the broken ground round Tycho, he said "What a splendid Hell that would make." Again, alter showing him the clusters in Hercules and Perseus, he remarked musingly. I cannot think much of the county families after that."

In the seventies and eighties Tennyson rarely came to London without discussing some scientific points with his friend. In 1890 Sir Norman visited Tennyson at Aldworth, when he was in his eighty-second year : I was then (says Sir Norman) writing the " Meteoritic Hypothesis" and he had asked for proof sheets. Where I arrived there I was touched to find that he had had them bound together for convenience in reading, and from the conversation we had I formed the impression that he had read every line. It was a subject after his own heart. . . . One of the nights during my stay was very fine, and be said to me " Now. Lockyer. let us look at the double stars again," and we did. There was a 2inch telescope at Aldworth. Tennyson's interest in astronomy was, Sir Norman adds, persistent until his death.

The breadth of Tennyson's outlook upon nature is, as Sir Norman Lockyer points out, only equalled by the minute accuracy of observation displayed. Hundreds of quotations are here grouped together from his poems, and they refer not only to evolution but to the starry heavens, the sun and sunlight, the moon and moonlight, bird-life and song, the insect world, animals and their ways, plants and trees, water and aquatic life, the importance of knowledge, and so forth.

                                                      www.theramblingastronomer.co.uk

Captain Scott, The South Pole and a Cooke Theodolite

 Most people know of the story of Captain Scott and his expedition trying to become the first people to reach the south pole on Antarctica during the summer of 1911/1912. Unfortunately when he arrived he discovered that he had been beaten by the Norwegian team led by Roald Amundsen. Amundsen reached the south pole on the 14^th December 1911, while Scott reached the south pole on January 17^th 1912. Sadly on the return journey Scott and his team perished in the very cold conditions.

However what is perhaps less well know is that Captain Scott and his team took a light weight theodolite specially made by Thomas Cooke of York with him the mark the position of the south pole. It was one of only 6 of these special theodolites made by Cooke’s for the expedition.

When the rescue team found the bodies of Scott and his team in their tent they also found the Cooke theodolite that was used by Scott to mark the south pole.

This instrument was on display at the physics department at the University of York, however I cannot say if it is still there today.

                     www.theramblingastronomer.co.uk

Sir William Keith Murray and his 9 inch Cooke telescope

 On December 11^th 1858 Sir William Keith Murray (1801-1861) of Ochertyre near Crieff in Scotland purchased a 9 inch telescope from Thomas Cooke of York. The telescope was massive and had a tube that was 13 feet long and was mounted on a stone pier 9 feet and 3 inches tall. Up until this point in time it was the largest telescope that Cooke had constructed and it was also at the time the largest refractor in Scotland.

The weather conditions were often poor at the location of the observatory and Murray was only able to use the Cooke for a short period before his death in 1861. Following his death the telescope was offered for sale unfortunately with no initial interest.

In 1863 a number of gentlemen raised £1,120 ( today this would be £173,534) to purchase the telescope for the observatory at Glasgow University. It was sited at the Horselethill Observatory and used there until 1939 when the building was demolished. The 9 inch was always referred to as the 9 inch Ochertyre Telescope.

Following the demolition of the Horselethill Observatory a new student observatory was built in the University Gardens to house the 9 in Cooke. This was closed in 1969 after which I don’t know what happened to the 9 inch Cooke Ochtertyre Telescope.

                                                      www.theramblingastronomer.co.uk

The Astronomy Show

 Join me, Martin Lunn MBE tonight and every Monday evening from 7.00 pm-9.00 pm on the Astronomy Show, probably the only regular astronomy show on any radio station in the country.

I will take my weekly look at the night sky and look at all the latest news in astronomy. There will be the astronomical anniversaries this week plus the A-Z of Constellations and Astronomy in Yorkshire - God’s Own Country.

The Astronomy Show every Monday evening only on Drystone Radio live on line at www.drystoneradio.com DAB radio in Bradford and East Lancashire, or 102 and 103.5 FM and can also be heard later on the Drystone Radio Podcast.

Zeta Taurus observed from India in 1870 with a Thomas Cooke telescope

On December 8^th 1870 the Rev J Spear watched for the occultation of zeta Tauri, no occurrence occurred. The Moon passing at least 10 minutes north of the test star to the best of my judgement.

The telescope used was a 4.5 inch Thomas Cooke & Sons , the defining power of the telescope is excellent.

Good nights are not very frequent except in the cold season. Scintillation of the stars within about 12 degrees of the horizon is very considerable, even at my present elevation of about 7,300 feet.

I fear there is nothing else in my notes worth communicating. I have not been able to obtain good views of Venus lately owing to the heavy fogs.

Churkrata N W Provinces, Bengal

                                                        www.theramblingastronomer.co.uk

Geminid Meteor Shower

 Get set for the Geminid meteor shower: a shooting star spectacular for the end of the year! Many people look out for the annual Perseid meteor shower, which occurs in August. It is, however, not the most spectacular meteor shower. The Geminids hold that title and they can be seen this month. The Geminids reach maximum on the nights of December 13/14 and December 14/15 when up to 120 meteors per hour might be seen.

Meteors are connected with comets. As a comet, which is essentially a dirty snowball, travels around the Sun, it leaves a trail of dust behind it. If the Earth happens to pass through such a trail we see a meteor shower. The Earth passes through many such streams each year. Some of the meteor showers are spectacular; others less so, but they are all predictable. The Geminids are so called because the meteors all seem to come from the constellation of Gemini the Twins. They are special because they are associated not with a comet but with an asteroid, called Phaethon.

The pieces of dust produced by asteroids are slightly larger than those produced by comets and because of this they travel through the Earth’s atmosphere more slowly, making them much brighter than the usual meteors. The Geminids travel at about twenty miles a second, while most other meteors travel at speeds closer to forty miles per second. The dust particles burn up due to friction in the Earth’s atmosphere.

If there are no clouds we should be in for a spectacular event. If you see a meteor or shooting star in the sky, remember to make a wish!

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Transit of Venus seen from India in 1874

 

Manchester Courier and Lancashire General Advertiser

Friday 11^th December 1874

Transit of Venus

This station (Roorkee) is in fact a contribution made by the Government of India at the suggestion of Colonel Tennant B.E, ( Bengal Engineers), who in and since 1865 has rendered valuable aid in the observations of many interesting astronomical phenomena visible in Indian territory, especially the total eclipse of 1868 and 1871.

The suggestion of Colonel Tennant was at once warmly taken up by the viceroy in conjunction with the home government with a view to their future use in subsequent inquiries. The instruments sent out by Colonel Strange, of the India Stores Department are of the utmost precession and delicacy.

The temporary observatory erected by Col. Tennant at Roorkee, the seat of the Indian Civil Engineering College at the foot of the Himalayas, now contain a refractor of 6 inch aperture made by T Cooke & Sons York.

Manchester Courier and Lancashire General Advertiser

Saturday 12^th December 1874

Colonel Tennant from Roorkee says that during the transit one hundred photographs of the planet had been taken.

Probably if nothing else had been done, this would have secured to England an honourable place in the record of investigations.

                                                     www.theramblingastronomer.co.uk

Sun Pillars seen at the Harrogate Observatory in 1902

At the Harrogate Corporation Observatory on January 7^th 1902 Sun Pillars were seen. Earlier displays were seen on December 3^rd 1901. On both occasions the following was noted:-

a) The presence of Cirrus Cloud.

b) These clouds must be in a banded or striated form.

c) They must lie at right angles to the path of the Sun.

d) These clouds must of course be present in the immediate neighbourhood of the setting Sun.

The altitude of this station is 480 feet Latitude 54 degrees North, 1 degree 36 minutes west.

G.Paul Corporation Observatory, Harrogate

Halley’s Comet is furthest from the Sun on December 9th 2023

Possibly the most famous comet, it was observed by Edmond Halley in 1682 who realised that it seemed similar to the comets of 1531 and 1607. He predicted it would return in 1758, Halley himself died in 1742,. Then on Christmas night 1758 the comet was seen right on schedule. It has since been known as Halley’s comet.

Although on average it takes 76 years to orbit the Sun, the orbit of comet Halley can vary between 75 to 79 years.

A comet is really like a giant snowball travelling around the Sun, as it approaches the Sun it heats up, and gas and ice are melted off the comet producing the wonderful tail that people associate with comets.

As a comets travels around the Sun it leaves a trail of dust behind it. If the Earth happens to pass through any of these dust streams we see what astronomers call a meteor shower. There are several well known ones each year. Meteors or shooting stars as they are often referred to are grains of comet dust burning up in the Earth’s atmosphere.

The Earth passes through the stream of dust left behind by comet Halley not one but twice a year. In May we have the Eta Aquarid meteor shower and in October we see the Orionid meteor shower. If you see any meteors from these showers you are looking at tiny grains of dust from comet Halley burning up in the Earth’s atmosphere.

So on December 9^th 2023 comet Halley is at its furthest point from the Sun in its orbit. A point that is referred to by astronomers as its point of Aphelion. In fact at the moment Halley’s comet is actually beyond the orbit of the planet Neptune.

After that it will begin its journey back to the inner solar system reaching its closest point or Perihelion point to the Sun on July 28^th 2061

                                                      www.theramblingastronomer.co.uk

The Astronomy Show

 Join me, Martin Lunn tonight and every Monday evening from 7.00 pm-9.00 pm on the Astronomy Show, probably the only regular astronomy show on any radio station in the country.

I will take my weekly look at the night sky and look at all the latest news in astronomy. There will be the astronomical anniversaries this week plus the A-Z of Constellations and Astronomy in Yorkshire - God’s Own Country.

The Astronomy Show every Monday evening only on Drystone Radio live on line at www.drystoneradio.com DAB radio in Bradford and East Lancashire, or 102 and 103.5 FM and can also be heard later on the Drystone Radio Podcast.

Large fire near Dunsink observatory in 1895

Bradford Daily Telegraph Monday 7^th October 1895

A fire occurred on Saturday October 5^th at Rathbone’s candle factory near Dunsink Observatory, county Dublin, and properly estimated £80,000 was destroyed. The heat was so intense that it was found impossible to reach a water tank in the yard attached to the premises, and the only supply available was procured from an old quarry nearby. Tons of finished candles were and the buildings completely destroyed.

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An astronomical observatory for Grimsby in 1899?

 Bradford Daily Telegraph Wednesday 24^th May 1899

The Mayor of Grimsby has promised to erect an observatory in the public park. The observatory is to have an approach of 80 steps to correspond with Her Majesty’s years of life.

                                                        www.theramblingastronomer.co.uk

Discovery of Himalia with the 36 inch Crossley Reflector in 1904

On December 3^rd 1904 Charles Perrine using the 36 inch Crossley reflector at the Lick Observatory in California discovered the 6^th moon of Jupiter, Himalia. The moon was named after a nymph on the island of Rhodes and according to Greek mythology she was one of the lovers of Zeus.

Himalia is the 5^th largest moon of Jupiter it has a radius of 85 km and lies at a distance of 11.5 million km for Jupiter and takes 251 Earth days to complete one orbit of Jupiter.

The 36 inch reflector had been owned by Edward Crossley of Halifax, Yorkshire who owned Crossley Carpets the largest carpet manufacturer in the world in the 19^th century. He purchased it in the 1880s from A. A. Common of Ealing, London. Although it was at the time the largest reflector in England due to the poor observing conditions in the skies over Halifax which was due to the pollution from the many factories in Halifax it was impossible to use the telescope to its best.

In the mid 1890s he donated the telescope to the new Lick Observatory in California. During the late 19^th and early 20^th centuries the Crossley reflector at Lick proved to be a real trail blazing telescope leading in astronomical research in many different areas. It was also the largest reflector in America until the building of the 100 inch telescope at Mount Hamilton.

Two Cooke telescopes for Plymouth in 1866

 Edward Mills of Weston Lodge, Plymouth ordered two telescopes from Thomas Cooke in 1866. One was a 4.5 inch and the other was a 3.5 inch. I am not sure of any observations he made with theses telescopes.

                                                       www.theramblingastronomer.co.uk

The Astronomy Show

 Join me, Martin Lunn tonight and every Monday evening from 7.00 pm-9.00 pm on the Astronomy Show, probably the only regular astronomy show on any radio station in the country.

I will take my weekly look at the night sky and look at all the latest news in astronomy. There will be the astronomical anniversaries this week plus the A-Z of Constellations and Astronomy in Yorkshire - God’s Own Country.

The Astronomy Show every Monday evening only on Drystone Radio live on line at www.drystoneradio.com DAB radio in Bradford and East Lancashire, or 102 and 103.5 FM and can also be heard later on the Drystone Radio Podcast.

A small Thomas Cooke telescope for a bullet maker in 1865

 In 1865 Mr W E Metford of Bristol purchased a small 2 inch Cooke telescope. Although he liked astronomy his main interest was in the development of bullets for rifles.

                                                       www.theramblingastronomer.co.uk

4 inch Cooke telescope ordered for Tynemouth

On the 20th December 1858 Dr Matthews from Tynemouth ordered a telescope of 4 inch aperture from Thomas Cooke & Sons York,  plus a polished brass tube, a finder, four eyepieces, sun prism and dark glasses, two brass clamps for fixing to stand at a cost of £40. ( In 2023 that would be equal to £6,640)

                                                         www.theramblingastronomer.co.uk

Thomas Cook could vote in the 1837 election

Thomas Cook optician of Stonegate in York was objected to being able to vote in the general election of 1837 by a Mr Graham because he believed that Mr Cook was not a £10 Freeholder. At this time unless you owned a freehold property to the value of £10 you were unable to vote.

However on checking it was found that Mr Cook had a previous rating that showed he was a £10 Free holder owning his opticians shop in Stonegate and was therefore allowed to vote.

The 1837 election was won by the Viscount Melbourne. I do not know which way Thomas Cook voted.

Also note that his name is spelled without an ‘e’, he went from Thomas Cook to Thomas Cooke sometime in the early 1840s.

                                                        www.theramblingastronomer.co.uk

The Frost Moon becomes the Before Yule Moon

 The full moon in November which this year occurs on the 27^th is usually known as the Frost Moon. November is the month when traditionally the first very cold nights of the year occur and frosts will be seen, heralding the coming of the winter months.

However the full moon on the 27 November is the last before the feast of Yule which occurs on December 21^st. This is the day of the year when the Sun is at its lowest in the sky and produces the shortest period of daylight of the year. This date can vary from year to year by a day or so.

A long time ago people watched for the full moon in December or occasionally in November; they then had from that date until the feast of Yule to chop down a Yule log from the forest in readiness to burn it from the feast of Yule for twelve nights. Today of course the Yule log has turned from firewood into a cake!!

The full moon in December falls on December 27. This means that the full moon in December this year will be known as the 'Cold Moon'. The naming of the full moons this year became disrupted because of the Blue Moon in September.

                                                     www.theramblingastronomer.co.uk

Snowballs and the Thomas Cooke works in York

In early December 1882, two youths employed at the Thomas Cooke, Buckingham Works, Bishophill, York were summoned for snowballing near the works. It was shown that two residents in the vicinity were compelled to put their shutters in lest their windows should be broken.

Mr Haley stated that he had had numerous complaints respecting snowballing. Mr Ditmas who appeared for the boys submitted that the defendants not having been previously warned might with justice be discharged.

Mr Rowntree said that snowballing could not be considered a privileged. The youths were find 1 shilling each.

                                                        www.theramblingastronomer.co.uk

Jupiter glides past the Moon and Seven Sisters

 There are some fantastic observing opportunities coming along over the next few days.

If we have clear skies on the nights of November 24^th and 25^th there will be two chances to see the Moon and Jupiter close together in the sky.

On November 24^th Jupiter will be just beneath the Moon while on the following night November 25^th Jupiter will appear to be above the Moon.

If that is not enough on November 26^th the Moon will be just below the Pleiades or Seven Sisters which is a cluster of stars and can be seen in the sky as a fuzzy patch.

You don’t need binoculars or telescopes to see these events just clear skies. Good luck!!

                                                         www.theramblingastronomer.co.uk

The Astronomy Show

 Join me, Martin Lunn tonight and every Monday evening from 7.00 pm-9.00 pm on the Astronomy Show, probably the only regular astronomy show on any radio station in the country.

I will take my weekly look at the night sky and look at all the latest news in astronomy. There will be the astronomical anniversaries this week plus the A-Z of Constellations and Astronomy in Yorkshire - God’s Own Country.

The Astronomy Show every Monday evening only on Drystone Radio live on line at www.drystoneradio.com DAB radio in Bradford and East Lancashire, or 102 and 103.5 FM and can also be heard later on the Drystone Radio Podcast.

Amalthea observed with 25 inch Cooke telescope

 On January 24^th and February 4^th 1893 Mr Newall using the 25 inch Thomas Cooke & Sons telescope at the new observatory at Cambridge observed the 5^thsatellite of Jupiter.(I assume by the 5^thsatellite he means Amalthea which was discovered by Barnard in 1892)

Mr Newall remarked that it has been most justly described as a very difficult object to see.

                                                         www.theramblingastronomer.co.uk

When Will Hay observed Nova Puppis 1942 with a Cooke telescope

Will Hay is best remembered as a comedian of the stage and in films in the 1930s and 1940s. He was also a very competent astronomer who discovered a white spot on Saturn in 1933 using a 6 inch Cooke telescope. He also observed Nova Puppis 1942 with a Cooke this time a 3.5 inch telescope.

Observing from London early in the morning of November 24^th 1942 and using his 3.5 inch Cooke he saw the nova. He had seen it a few days earlier on November 14^th as a naked eye object of around magnitude 3.5. By November 24^th it had faded and a telescope was needed to see it.

It was very close to the horizon and he estimated the brightness of the nova as between magnitude 4 and 5 but as he commented being so close to the horizon it is difficult to estimate the brightness of a star so low in the sky due to the amount of atmosphere the light has to pass through.

Will Hay was also struck by the red colour of the nova. He checked other stars nearby of about the same brightness and they appeared to be their normal colours suggesting that the redness was in the nova itself.

Nova Puppis was discovered by Bernhard Dawson at the La Plata Observatory in Argentina on November 8^th 1942. It reached a maximum magnitude of 0.3 on November 10^th 1942.

Occultation of 73 Pisces from India with a Cooke telescope

The occultation of the star 73 Pisces by Jupiter was observed from Meean Meer, Lahore, India on December 23^rd 1880 by H Collett using a 4.5 inch Cooke telescope with a power of 96.

At 01 hours, 52 minutes, 30seconds GMT the star was hanging on the limb of the planet and by 01 hour and 54 minutes it had entirely disappeared. The phenomenon strongly resembled the occultation of a satellite except the disappearance was more rapid. The planet and star appeared to cohere for about 1.5 minutes.

No micrometer was used. The GMT of reappearance was 02 hour, 44 minutes when the star was again observed to hang onto the planet’s limb. The planet was well placed for observation being near the zenith

Before and after the occultation Jupiter appeared as if with 5 moons, the star being almost indistinguishable from the satellites.

As the occultation could not be observed in Europe these few notes may prove to be of some interest.

                                                        www.theramblingastronomer.co.uk

Venus seen through a Cooke telescope from Manchester in 1901

 A drawing of Venus was made at the observatory of Mr Chatwood at Worsley, Manchester in 1901 using his 9.75 inch Thomas Cooke & Sons telescope. This had originally been owned by Isaac Fletcher of Cumberland.

The telescope would in 1902 be purchased by J T Ward for the newly formed Wanganui Astronomical Society in New Zealand.

The telescope is sometimes referred to as a 9.5 or 9.75 inch telescope and just to add extra confusion when ordered it was supposed to be a 9 inch telescope.

Jupiter seen with no moons from Liverpool in 1867

 On August 22^nd 1867, John Joynson at Waterloo near Liverpool observed Jupiter with no satellites visible. This was done using a 6 inch Thomas Cooke & Sons telescope.

Occultation of Aldebaran in 1867

 The occultation of Aldebaran in 1867 was observed by Mr Airy who remarked that the star did not come out bright instantaneously but was 38 seconds regaining its full light.

Whereas Mr Joynson in Liverpool with his 3.5 inch Thomas Cooke & Sons telescope described the star as sliding on the Moon’s disk at the immersion but re appearing instantaneously

                                                       www.theramblingastronomer.co.uk

The Astronomy Show

 Join me, Martin Lunn tonight and every Monday evening from 7.00 pm-9.00 pm on the Astronomy Show, probably the only regular astronomy show on any radio station in the country.

I will take my weekly look at the night sky and look at all the latest news in astronomy. There will be the astronomical anniversaries this week plus the A-Z of Constellations and Astronomy in Yorkshire - God’s Own Country.

The Astronomy Show every Monday evening only on Drystone Radio 102 and 103.5 FM the Astronomy show can be heard live on line at www.drystoneradio.com and can also be heard later on the Drystone Radio Podcast.

Rings of Saturn seen with a Cooke telescope in 1937

Mr R Congrieve-Pridgeon using the 6 inch Cooke refractor at the Hampstead Observatory made observations on February 22^nd 1937 one or two days after the passage of Saturn’s rings had passed through the plane.

Mr Congrieve-Pridgeon glimpsed it as a fine silver line shortly after sunset and at 18h and 5 min made the note ‘Ring E and W seemed certain; very fine golden line.

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Nova Hercules 1934 and a Cooke telescope

 Dr Steavenson using the 6 inch Cooke refractor of the Observatory of the Hampstead Scientific Society showed on the epidiascope a light curve of Nova Hercules, and during March 1935 there was a steady fall to a minimum mag of 5.0 on March 21^st There then was a marked recovery to mag 3.9 by March 25^th.

The Franklin Adams Star Charts and Cooke telescopes and Cameras

From Nature magazine in 1913

John Franklin Adams photographed the entire night sky between 1904 and 1909 from Godalming in Surrey for the northern hemisphere and from South Africa for the Southern Hemisphere using a 10 inch Cooke camera and two 6 inch Cooke cameras. The 206 photographic plates covered the entire sky. Each plate covered an area 15 degrees by 15 degrees.

In 1913 the Royal Astronomical Society undertook to publish a small number of the Franklin Adams Charts.

The reproductions were on bromide paper 15 inches by 12 inches with the plate area being 11inches by 11 inches. The cost of each set will be 10 guineas in 2023 this would be over £1,400!!

It is hoped that a sufficient number of subscribers will be enlisted to help to defray the cost of such an expensive undertaking. It is hoped that they will be ready in 1914.

Today the Franklin Adams Charts are still use by astronomers due to their quality and their historical reference to the night sky over 100 years ago.

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Transit of Mercury seen from Australia in 1940 with a Cooke telescope

On November 11^th 1940 a transit of Mercury was visible for Britain that same transit was also visible from Australia on November 12^th due to the different time zones.

It was seen in Australia  by Mark Howarth at the Grange Mount Observatory, Newcastle New South Wales, Australia. A Cooke 4.5 inch telescope was used with a solar diagonal of power x 80. Weather conditions were good, especially at times of the beginning and ending of the transit.

A slight haze made it impossible to obtain satisfactory photographs. The temperature at the time of the transit was 92 degrees F. or if you prefer 33 degrees C.

A transit of Mercury occurs when the planet passes if front of the Sun as seen from Earth. Mercury can then be seen as a dark spot slowly moving across the Sun. Although not as scientifically important as transits of Venus, transits of Mercury still attract a lot of attention. The most recent was in 2019 the next will be in 2032.

Occultation of delta3 Taurus seen from Liverpool with a 6 in Cooke telescope

On November 9^th 1870 John Joynson of Waterloo in Liverpool observed an occultation of delta 3 Tauri. Delta 3 is one of the members of the Hyades cluster of stars that are near to Aldebaran in Taurus. Joynson was using a 6 inch Cooke telescope.

According to Joynson the Moon passed in front of  this star and the disappearance took place at 11 hours, 19 minutes and 11.3 seconds. The star reappeared at 12 hours 16 minutes and 50.7 seconds. The observations were considered very satisfactory.

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The Thomas Cooke 25 inch lens tested

On November 5^th 1867 the 25 inch object glass which had been so long in the making by Thomas Cooke of York was completed. This was the largest object glass to that date. 

 It was tested on the double star gamma 2 Andromeda and the stars were seen most distinctly divided and with the spurious disks of the three stars of the system perfectly round.

When completed in 1870 the telescope would be used by Robert Newall in Gateshead, at this time it was the largest telescope in the world.

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The Astronomy Show

 Join me, Martin Lunn tonight and every Monday evening from 7.00 pm-9.00 pm on the Astronomy Show, probably the only regular astronomy show on any radio station in the country.

I will take my weekly look at the night sky and look at all the latest news in astronomy. There will be the astronomical anniversaries this week plus the A-Z of Constellations and Astronomy in Yorkshire - God’s Own Country.

The Astronomy Show every Monday evening only on Drystone Radio 102 and 103.5 FM the Astronomy show can be heard live on line at www.drystoneradio.com and can also be heard later on the Drystone Radio Podcast.

Partial Lunar eclipse of the Hunter's Moon

 There will be a partial eclipse of the Moon on October 28. The eclipse occurs between 8.35pm and 9.53 pm with maximum occurring at 9.14 pm.

An eclipse of the Moon occurs when the Moon passes into the shadow of the Earth. We see the Moon because it reflects light from the Sun. Moonlight is in fact reflected sunlight. During an eclipse of the Moon some light from the Sun passes through the atmosphere of the Earth and is bent or refracted onto the surface of the Moon. The Earth’s atmosphere blocks the blue end of the spectrum, only allowing the red part to get through. This is why, during an eclipse, the Moon turns a coppery red colour. As this month's eclipse is partial, with only the southerly part of the Moon entering the Earth’s shadow, only the bottom part of the Moon will appear to change colour.

The full moon in October is known as the Hunter’s Moon. Following on from the Harvest Moon, this was the month when people would stock their larders with meat for the coming winter. The extra light from the moon this month helped them to locate their prey.

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