Wednesday, 31 July 2024

Observatory in Cheltenham damaged by fire in 1916

 

Cheltenham Chronicle Saturday 15th April 1916

Disastrous fire in Cheltenham, considerable damage done to Thirlestaine Hall

Monday 10th April 1916

THE EXTENT OF THE DAMAGE The structure was insured for £10,500, an! Mr. Player roughly estimates that replace  the structural damage will cost about £4000. The contents the house were insured £10,000, and although an estimate the damage is difficult until the valuers have been carefully through the rooms, it will probably work out at something like £2,500 . That such an estimate is justified may judged by the fact that the contents of the best rooms, almost entirely destroyed  were down in the inventory for £450 and £350 respectively.

Mr John Player purchased the house in 1909 and built an observatory with a rounded dome of which was very conspicuous from many parts of the town.

It was due to the existence of the observatory that the fire was discovered a member of the family went uo to the observatory which commands a complete survey of the broad expanse of roof above the main block of the building. From the windows of the observatory the presence of the fire was quickly detected.

The saving of the observatory was a fine piece work by fire brigade, and not unattended with danger for the men had to go through a small window to get to the outside, and the danger of them getting cut of by fire  was at one time imaginary, for the floor the room in which the window is situated  beginning to smoke it was torn up in places and found burning strongly beneath. The hose was consequently turned on it, and the burning beams beneath extinguished. The observatory itself a structure would have burnt like a matchbox. In it were instruments valued at least at £500. including a 3-inch transit telescope, a 6 inch equatorial telescope, and a sidereal clock, none of which were in the insurance inventory!

 

Tuesday, 30 July 2024

Aurora 7 and Scott Carpenter

 Astronaut Scott Carpenter (1925-2013) was the second American astronaut to orbit the Earth when he was launched on March 24th 1962 in the Aurora 7 capsule. This was part of the Mercury project.

On July 16th 1964 he  lost control of his motor cycle while riding in Hamilton, Bermuda and broke his arm.  The accident removed him from the active list of NASA astronauts and he resigned from NASA on August 10th 1967.



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Monday, 29 July 2024

The Astronomy Show

 Join me, Martin Lunn MBE tonight and every Monday evening from 7.00 pm-9.00 pm on the Astronomy Show on Drystone Radio, 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.



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.

Cannibal CME Alert, possible Northern Lights on July 30th and 31st

 Over the weekend the sunspot region on the surface of the Sun called AR3765-3767 (the AR refers to it being an active region) produced a number of M class flares. These then hurled a series of CMEs (Coronal Mass Ejections) towards the Earth. There could be as many as 4 or 5 CMEs heading towards us,

The first two CMEs are going to merge into what astronomers call a Cannibal CME. This happens when a faster travelling CME catches up with a slower moving one ahead of it.

The CMEs are powerfully charged pulses of magnetic energy. When the cannibal CME hits the Earth’s protective magnetic field it will disrupt it allowing the following 2 or 3 CME’s to cause what we refer to as the Northern Lights or Aurora Borealis. This can cause radio black outs and disruption to IT equipment.

If it is clear on the nights of Tuesday 30th and Wednesday 31st July look to the north there could be some displays of the Northern Lights.

As this blog goes out there is some breaking news that indicates that this sunspot region AR 3765-3767 could be more sending more flares our way later this week. If anything else develops I will keep you posted.



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Sunday, 28 July 2024

Sun Spot seen over Halifax in 1871

 While watching the Sun set over the hills to the west of Halifax, on the evening of July 17th 1871, my attention was called to an intensely black spot upon its southern hemisphere, almost vertically below the centre of the disc, which was visible to the naked eye. I may add that the evening was fine, but a thin mist was rising from the valleys, and that it was about five minutes before the Sun touched the horizon that the spot was first seen. 

Thomas Perkins



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Saturday, 27 July 2024

Comet Gale 1912

 Derby Daily Telegraph Tuesday 15th October 1912

 

 

Gale’s Comet has been well seen with the 6in. equatorial at Mr. F. J. Hanbury's Observatory, Brockhurst, East Grinstead, during the past week. The Superintendent, however, says in a letter to the Times that it is somewhat north of its predicted place in the ephemeris and the difference is on the increase amounting to nearly one degree last night. It is rising rapidly in declination and  appears be brightening, also; when first seen it was estimated about fifth magnitude  but now nearer the fourth.  It, was really a fine object last night, being found in twilight.  On a dark sky it had an extensive coma, with a large bright nucleus and a tail at least half degree length. It  was very plain in the finder, and was about south of Alpha Serpentis. sighting along the telescope it was seen with the naked eye, as a little misty spot just below the bright star. It is evidently proving to be a more interesting object than was at first anticipated, and seems likely to remain in view for some little time.

 

My note 

The comet was discovered by Walter Gale at Sydney NSW on September 8th 1912. He may have made the discovery with his 6.5 inch Thomas Cooke telescope



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Friday, 26 July 2024

Observatory vandalised in 1887

 Wallington & Carshalton Herald Saturday 09 July 1887

 

WANTON MISCHIEF ! A DISGRACE TO WALLINGTON.

To the Editor of The Herald 

Sometime night my Observatory was  broken into and the equatorial astronomical telescope mounted there was completely ruined, the object glass,  good one by Wray. Was stolen. and all the adjusting and clamping screws removed and taken away. 

These things, of course, have  little or no value in themselves apart from the instrument, but  without them the whole machine with all its lenses and accessories, which I kept  for greater safety in the house. is utterly useless. Such wanton mischief ought somehow to be exposed. 

I regret to say that this is not the first time I have had reason to complain, for hardly a month has passed during the year without some damage being done to the observatory itself; it is of very light structure. made of wood and covered with the Patent Willesden Card.  and has successfully stood the 'heavy  snow falls and storms of the past winter, but has not been proof against the sticks and stones which has frequently been sent through it. 

The observatory stands in but perhaps too near the footpath across the lavender field from which the  mischief has been done. 

I never expect that my loss can be replaced, it would be no easy matter to get the  missing parts, probably scattered in the lavender field re made, and a new instrument, even if I could afford to buy it, could never have the associations and interesting early study. 

But what can be said for this wanton spirit of destruction, which would have been counted a disgrace, even by the most uncivilised races of the world. 

However let the people of Wallington know what sort they have in their midst to deal with, and be on their guard, for what can be safe?

I am yours faithfully

 

John  H Haslam 

Penden, Wallington, July 5th



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Thursday, 25 July 2024

Japanese launch their first weather rocket in 1964

 On July 22nd 1964 the Japanese launch their first weather rocket, 25 feet long and produced by Mitsubishi Heavy Industries the vehicle was launched from the National Space Development Centre on Niijima. It reached an altitude of 100 miles.



                                                       www.theramblingastronomer.co.uk

Wednesday, 24 July 2024

The first person to look through a telescope at the Moon was Thomas Harriot, not Galileo

 Everyone knows that Galileo (1564-1642) was the first person to use a telescope to look at the night sky, its what all the astronomy books tell is, right? Actually no that’s wrong!! 

The first person to make a drawing of the Moon was by the English astronomer Thomas Harriot (1560-1621). Harriot made his drawing on July 26th 1609 Galileo made his on November 30th 1609, four months before Galileo. So what’s going on? 

I am not only the Rambling Astronomer, I also find myself sometimes becoming an astro- detective trying to solve astronomical mysteries. 

Here is one of those mysteries: 

Harriot by the time he observed the Moon was was already a well know scientist and mathematician. He was supported in his work by the Earl of Northumberland, Henry Percy, a cousin of one of the gun powder plotters. In fact Harriot would get arrested for a short while. He was trying to keep a low profile at this time he did not want to get labelled as on of the gunpowder plotters so shouting and drawing attention to himself about making the first astronomical observation through a telescope would presumably attracted some attention. It could of course be the wrong kind of attention. He seemed happy with his observations and left it at that. 

Harriot died in 1621 and his papers seem to get lost, they were not re discovered until 1784 by Franz Xaver Zach an Austrian astronomer. He was appointed as tutor to the son of Count de Bruhl who was sent to England as Saxon Minister. While in England Zach visited the Egremont estates in Petworth in Sussex which had been part of the country estate of the Duke of Northumberland. Zach found Harriot’s manuscripts hidden among of all things the stable accounts. 

Franz Xaver Zach would go onto form the celestial police trying to locate an imaginary planet between Mars and Jupiter. He planned to form a group of astronomers who would be known as the  the celestial police, however  before they started observing the Italian astronomer Piazzi discovered beat them too it. He discovered  the first minor planet or asteroid, Ceres on January 1st 1801.This area of the solar system is what is now know today as the asteroid belt. Ceres has since been reclassified as as a dwarf planet. 

Zach forwarded Harriot’s papers onto Oxford University in 1794 but due to a catalogue of errors Harriot's achievements including his  observation of the Moon were never published and he never got the credit he deserved. Today however scholars are trying to give Harriot the credit he is due for his observations of amongst other things the Moon. 

So the next time you read an astronomy book that says it was Galileo who made the first astronomical drawing while looking through a telescope it wasn’t .That credit should go to Thomas Harriot, a somewhat forgotten English astronomer. 

Or were there even earlier observations that have either been lost or have not yet been found?.



                                                       www.theramblingastronomer.co.uk

Monday, 22 July 2024

The Astronomy Show

 Join me, Martin Lunn MBE tonight and every Monday evening from 7.00 pm-9.00 pm on the Astronomy Show on Drystone Radio , 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 .

 



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 Bazeley Cooke telescope and Joseph Baxendell

 In July 1867 the polymath Thomas Bazeley purchased a 6 inch telescope from Thomas Cooke & Sons, the telescope cost £365 (today this would be over £45,000) . In 1877 Bazeley donated the telescope to Joseph Baxendell.

 

Baxendell was a prolific variable star observer and in fact discovered around 20 new variable stars, including the nova T Corona Borealis in 1866, this would later become known as the Blaze Star because it went novae again in 1846.

 

This 6 inch Cooke would allow him to continue his variable star work. Bazley also supplied the timber structure for the telescope. Baxendell renamed his house at 14, Liverpool Road, Birkdale, The Observatory.



                                                     www.theramblingastronomer.co.uk

Sunday, 21 July 2024

First comet to be discovered during a solar eclipse in 418CE

 On July 19th 418 CE the first reported discovery of a comet during an eclipse of the Sun. The comet was seen by the historian Philostorgius from Constantinople. The comet itself would then be observed for around four months afterwards.

The eclipse was visible from the Caribbean and ended in Northern India.



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Friday, 19 July 2024

Cooke equatorial mounting for Cambridge in 1868

 The Rev William Kinglsey of Cambridge in 1858 ordered a  Universal equatorial mounting to carry a foot tube, with a 3 and 5/8 inch diameter.

I think that the Rev Kingsley invented an illuminator to be used with the microscope. It was I believe first used commercially by Andrew Ross around 1848.



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Thursday, 18 July 2024

Small Thomas Cooke telescope for Hampshire in 1868

  J. Hullett of Clarence Lodge, Purbrook, Cosham, Hampshire who in 1868 purchased  a 2.75 inch refractor, which I would assume would have been mounted on a small tripod. 



                                                         www.theramblingastronomer.co.uk

Wednesday, 17 July 2024

Full Thunder Moon on July 21st

 The full moon in July is known as the Thunder Moon as this is the month of the year when we are most likely to get thunderstorms. The full moon in July this year will be on Sunday 21st .

There are normally 12 full moons in a year, each has its own name. The 13th full moon is the Blue Moon.

Today particularly within the press the American names tend to be used. These names are only about 200 hundred years old. I much prefer to use the old English names that were crested during the monastic period of history. These names date back over 1,200 years. 

There are 4 seasons during a year with 3 full moons within each season. The monks named each with either a religious theme or a theme that fitted in with agriculture or the time of year.



                                                          www.theramblingastronomer.co.uk

Tuesday, 16 July 2024

Explorer Satellite lasted 5 seconds in 1959

 The attempted launch of an Explorer Satellite on 16 July 1959 failed dramatically when the Juno II lost control almost immediately at lift off, performing a cartwheel before the range safety officer sent the destruct command. The mission lasted around 5 seconds

The almost fully fuelled booster crashed a few hundred feet from the pad, blockhouse crews watching in stunned surprise at the upper stage motors burning on the ground.

The cause of the mishap was quickly traced to a short between two diodes in a power inverter, which cut off power to the guidance system at lift off and caused the Juno's engine to gimbal to full stop, flipping the vehicle onto its side before Range Safety action was taken.


                                                 www.theramblingastronomer.co.uk

Monday, 15 July 2024

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 .


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 Thomas Cooke telescope in Poland

 In Warsaw in 1898 an observatory was established in an observatory a short distance north west of the university there. The observatory had originally belonged to the Polish amateur astronomer Jan Walery Jedrzejewicz (1835-1887) at Plonsk in central Poland. 

Among the equipment in the observatory was a 5 inch Thomas Cooke & Sons telescope. Among the objects that Jedrzejewicz observed were double stars, sunspots, lunar occultations and the positions of 16 comets.


                                                       www.theramblingastronomer.co.uk

Sunday, 14 July 2024

The Moon close to Antares on July 17th

 On Wednesday July 17th 2024 if the sky is clear it will be possible to see a bright red star just to the right of the Moon. This is the star Antares, the brightest star in the constellation of Scorpius the Scorpion.


In mythology it was the Scorpion that killed Orion the Hunter. While Orion was boasting to a large crowd of people of all the animals he had killed he did not see the little scorpion creep up behind him. The scorpion stung him on the ankle and killed him. However the gods were so impressed with Orion’s boasting that he was placed in the sky forever as was the Scorpion. To make sure that they could never meet again Orion was placed in the winter sky while we find the scorpion in the summer sky.


Antares is a red supergiant star which is so big that all the planets out to the orbit of Mars could fit inside the star if it was placed where our Sun is. Antares is around 550 light years away, this means that the light travelling at the speed of light left Antares about the year 1474.


You will notice that Antares looks red, in fact it is often known as the Rival of Mars because of its red colour. The colours of stars tell astronomers how hot or cool a star is. Stars that are blue or white in colour are much hotter than stars that are orange or red in colour.



                                                   www.theramblingastronomer.co.uk

Saturday, 13 July 2024

Thomas Cooke telescope in Nelson New Zealand

 Arthur Samuel Atkinson was born in Hurworth, Durham in 1833 and moved to New Zealand in 1853. He fought during the Taranaki war in 1860 and eventually he entered the legal profession but had a great love of astronomy. 

In 1882 he was asked by the Royal Society of London to be an official observer of the Transit of Venus. To do this he obtained a 5 inch Thomas Cooke & Sons telescope which I believe he purchased second hand. He also used it to observe the total eclipse of the Sun in 1885. 

The telescope was housed in an observatory in Nelson which is on the south island of New Zealand and was originally called the Atkinson Observatory. In 1982 a newer building was opened and in 2008 the observatory was renamed the Cawthron Atkinson Observatory after the wealthy benefactor Thomas Cawthron. 

The Cooke 5 inch telescope was officially retired from active use in 2017 and was placed in a new Cawthron Trust Institute building for people to look at. The Cooke was replaced by a celestron 14 inch telescope.



                                                   www.theramblingastronomer.co.uk

Friday, 12 July 2024

Venus observed from Corsica in 1934 with a Cooke telescope

During the early part of 1934  C V C Herbert made a series of observations of Venus from his small observatory at Carrosaccia, Corsica using a 4.5 inch Thomas Cooke & Sons telescope. Although only a small instrument the quality of the object glass and the steady atmosphere compensated for the small aperture. 

During March, April and May 1934 Venus was observed on 28 days. No surface markings were however noticed. On March 12th the seeing was for a short time superlative. 



                                                         www.theramblingastronomer.co.uk

Wednesday, 10 July 2024

July 15th 1965 - The day the Martians died

 Mars, the red planet, 'the god of war', has fascinated people more than any other in the solar system because of the idea that we might find aliens there.

 

The debate over the Martian canals began in 1877 when the Italian astronomer Giovanni Schiaparelli first described seeing 'channels' on the planet. His word 'canalli' meaning channels was   mistranslated into 'canals', which some people took literally, assuming that if people built canals on Earth, canals on Mars must be built by Martians. Some astronomers disagreed, but the idea took hold.

 

The argument went on for the next 40 years or so. In 1894 the astronomer Percival Lowell built a large observatory at Flagstaff in Arizona to study the canals. There were polar caps on Mars which appear similar to those on Earth, and the theory was that as the ice melted, the water would flow through the canals. Lowell became the most vocal supporter of the idea of life on Mars and would write books and newspaper articles supporting his argument.

 

As our knowledge of Mars increased during the 20th century, the idea of Martians and their canals faded. By the 1950s and early 1960s it was still believed that there might be plants and lichens of the kind found in tundra on Earth, and maybe some small rodent-like creatures.

 

NASA's Mariner 4 space craft launched on November 28th 1964. This very successful mission was the first probe to fly past Mars, at a distance of 6,118 miles (9,846km) above the Martian surface. It was the first time close photographs of another planet were taken. Sadly, from this point onwards, 'Martians' were doomed.

 

Mariner 4 sent back twenty-one photographs, which were poor and grainy. However, this 1960s cutting edge technology was sufficient. Rather than showing tundra-like vegetation and lakes of icy water, the images indicated that Mars was covered in craters looked more like the Moon.

 

The idea of life on Mars resembling anything we know on Earth ended on this day.

 

Today astronomers are certain that there was once water on Mars. Could this mean that life existed there? Mariner 4 killed the Martians, but there are still a number of spacecraft orbiting Mars, and robots driving across its surface, trying to answer this tantalising question.



                                                      www.theramblingastronomer.co.uk

 

 

 

 

 

 

Cooke telescope at the base of the Himalayas in 1874

 Manchester Courier and Lancashire General Advertiser 

Friday 11th 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.



                                                   www.theramblingastronomer.co.uk

Tuesday, 9 July 2024

The Kodailkanal Observatory in India and a Cooke telescope

 The Kodailkanal Solar Physics Observatory in southern India undertook much work studying the Sun. If possible it was photographed every day using the 6 inch Thomas Cooke &Sons telescope. On the same mounting is a small telescope used for projecting an 8 inch image on a chart on which can be marked the positions of the spots and faculae visible on the day of observation.

 

In a separate building was a Thomas Cooke & Sons 12 inch photovisual telescope. Which is fixed horizontally and is supplied with sunlight by an 18 inch siderostat. Between the siderostat mirror and the photovisual can be placed other object glasses, which can be used to form solar images for use with the large grating spectrograph, the collimator of which is fixed horizontally at right angles to the beam of light from the siderostat.

 

The 12 inch Cooke forms an image of the Sun 60 mm in diameter on the split platen of the spectroheliograph.



                                                        www.theramblingastronomer.co.uk

Monday, 8 July 2024

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 .


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 Cooke telescope for Calcutta in 1903

 In 1903 Thomas Cooke & Sons of York supplied a 4.5 inch telescope to the Government Observatory in Calcutta, India. The head of the observatory was Mr Evershed, Attached to the telescope was a 5 inch Camera also supplied by Cookes.

The telescope was mounted on a Cooke iron pillar which were housed in a shed. This shed was mounted on wheels and rails that allowed it to be moved when the telescope was to be used.



                                              www.theramblingastronomer.co.uk

 

Sunday, 7 July 2024

Launch of a British Skylark in July 1964

 The first sounding rocket to be launched by the European Space Research Organisation, a British built Skylark is fired from the Sardinian base of Salto di Quirra on July 6th 1964. Two chemical release payloads were carried to support upper atmospheric research.


                                                       www.theramblingastronomer.co.uk

Saturday, 6 July 2024

Jupiter observed from Canada in 1896 with Cooke telescopes

 Attempts were made on May 22nd 1896 at several points across Canada to observe the occultation of  a 9th magnitude star in Cancer by Jupiter. 

At the Toronto Observatory Mr F L Blake using the Cooke 6 inch refractor found the planet was too low in the sky for first class seeing, although the night was clear. 

Dr J C Donaldson of Fergus Ontario using a 3.25 inch Cooke & Sons refractor obtained a glimpse of the star, but the nearness to the horizon made observing very difficult. 

It is not known if any other observers further to the west observed the occultation.



                                                       www.theramblingastronomer.co.uk

Friday, 5 July 2024

Happy Aphelion Day

On July 5, Earth is at aphelion, or farthest point from the Sun, on its yearly orbit. At aphelion Earth will be 94,510,539 million miles (152, 099,968 million km) from the Sun. In the northern hemisphere we are now experiencing summer. In January however, Earth was at Perihelion, its closest point to the Sun, being only 91,404,095  million miles (147,100,632 million km) away. The seasons are caused not by how close Earth is to the Sun, but by which hemisphere is tilted towards it. In July the northern hemisphere is tilted towards the Sun, while in January when Earth is closest to the Sun, the northern hemisphere is tilted away from it.



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The Cooke telescope at the David Dunlop Observatory

 The University of Toronto’s David Dunlap observatory at Richmond Hill near Toronto, Canada today houses a 74 inch Grubb Parsons reflector that was installed in 1935. However there was a much older observatory in Toronto. 

This was the Toronto Magnetic and Meteorological Observatory at the University of Toronto which  housed a 6 inch Thomas Cooke & Sons telescope that was installed in 1880. The Cooke was used in particular for the study of sun spots in conjunction with magnetic measurements made at the observatory. I believe that the Cooke may have been used until around 1910.



                                                        www.theramblingastronomer.co.uk

 

 

Thursday, 4 July 2024

How monks stopped people seeing the supernova of 1054

 How could an object brighter than the planet Venus not be recorded by astronomers in Britain or Western Europe? In the year 1054, before telescopes, a supernova was visible to the naked eye in daylight for at least three weeks, and for nearly two years after that in the night sky.


The supernova was reported by astronomers in China, Japan and the Arabic speaking world. Astronomers in these parts of the world were far more advanced in astronomical knowledge than their European counterparts, but that doesn't explain why something easily seen was not recorded in Western countries.


So, what was going on? It would be wrong to believe that the supernova was not seen in Europe, because clearly, it was. The answer probably lies with the people holding the power. Monks had astronomical knowledge and the wherewithal to record the event. Monasteries were the seat of knowledge and power in Europe at this time and had sufficient control to decide what became news – and what did not. Did the monks suppress reports of this spectacular occurrence, and if so, why?


It was on July 4th 1054 that a star in the constellation of Taurus the Bull destroyed itself in what astronomers call a supernova. The remnants of this star are now known as the Crab Nebula. This was a spectacular and rare event: the last bright supernova we are aware of was in 1604.


In 1843 the Earl of Rosse named the Crab Nebula, observing it through a 36-inch telescope from his observatory at Birr Castle, Ireland. He clearly had some imagination because it is not easy to see the image of a crab in the nebula. Today, astronomers can see the remains of the destroyed star at a distance of around 6,500 light years.


The nebula is also known as M1, or Messier 1. This name comes from a catalogue of objects drawn up by the 18th century French astronomer Charles Messier. He spent his time searching for comets, discovering around a dozen, none of them very spectacular. During his search he came across over a hundred 'comet lookalikes'. To avoid confusion in future searches for comets, he drew up a list of 'non-comet objects'. This 'Messier list' is still of great use to astronomers as they explore and study the constellations.


At the time of the1054 supernova, monasteries were the seats of learning, with massive libraries and people who could read and write. They had already become very wealthy institutions. This was not a deliberate policy as they were built originally for purely religious studies, but they had many bequests of land and money left to them by rich lords and barons.


Monasteries studied many subjects in addition to religion, astronomy among them. The monks followed the teaching and ideas of Aristotle (384 BCE- 322BCE) from ancient Greece. One of his ideas would cause trouble for over 1800 years.


Aristotle developed the 'geocentric' view of the solar system, where the Earth was accepted as the centre of everything, with the Sun, Moon and planets orbiting around it. This geocentric view would only be changed in 1543 by Nicolas Copernicus, a Polish monk. His theory placed the Sun at the centre to give us the 'heliocentric' view. Although not everything Copernicus said was correct, he made massive strides in the right direction.


Aristotle also said that everything in space moved in circles. The circle was seen as a 'perfect' shape, and the heavens, of course, had to be perfect. We now know objects in the solar system move in ellipses rather than circles.


Aristotle’s idea that the heavens were perfect and unchanging caused trouble with both the 1054 supernova and that of 1181. When people saw the new star appear they went to the monasteries because they were the centres of learning, and the monks would know what was going on. At least that is what people thought.


To the monks, however, the supernova posed an irreconcilable problem. They could not admit that there was a new star. They had told everyone that the heavens were perfect and unchanging. Consequently, people living close to the monasteries were convinced, by the monks, that there was nothing there. Although they could see this new star, the monks had such authority that the people believed them when they were told that this was the work of the devil, trying to corrupt their minds.


Today, this is the prevailing theory as to why an event recorded in many parts of the world was ignored in Europe. It simply did not fit in with the accepted view of the most learned people; the monks in the monasteries, and thus power came to define knowledge.



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Wednesday, 3 July 2024

Bloodhound removed from service in UK in 1964

 Because manned aircraft are no loner a major threat to the UK's defences the Bloodhound Mk1 is being withdrawn from operation. This was announce on July 3rd 1964 by Mr Hugh Fraser, Minister for Defence for the RAF at RAF Newton, Notts. As the status quo is different overseas Mr Fraser said that the greatly improved Mk 2 Bloodhound is being placed in service abroad by the RAF at several locations.


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Tuesday, 2 July 2024

The Rothschild's Cooke telescope

 A report from 1889 says that Baron Albert von Rothschild’s observatory within the precincts of his palace is a bijou. A splendid equatorial by Thomas Cooke & Sons with a 9 inch aperture, to which the Baron has fitted notions of his own. Observations of double stars are made by him, and astronomers may in a year or two receive published results. Dr Palisa is the Baron’s court astronomer.



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Monday, 1 July 2024

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.


 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.

Occultation of Saturn in 1917 seen with a Cooke telescope from Australia

 Ernest Wunderlich at the Wyone Observatory, Port Hacking which is about 14 miles south of Sydney observed the occultation of Saturn by the moon on March 14th 1917. The telescope used was a 4.5 inch Thomas Cooke & Sons telescope.  

The sky was at the commencement of occultation was, owing to slight haze, rather more luminous than usual, and this caused the loss of the “inner edge of ring” and “first limb” of the ball at ingress. At egress the definition was all that could be desired, but the first edge of ring was decidedly outside the Moon’s illuminated edge before it was noticed, and thus was “lost”.



                                                       www.theramblingastronomer.co.uk