In 1865 Hugh Robert Rump of Wells Next to the Sea, Norfolk purchased an equatorial mounting on an iron pillar from Thomas Cooke & Sons.
I don’t know what kind of telescope he had, what kind of observing he did or whether or not it was a Cooke telescope.
The Royal Society, Burlington House, Piccadilly, London ordered from Thomas Cooke & Sons a 5 inch telescope. There were 5 eyepieces and it was mounted on an equatorial mounting.
In 1865 the Royal Astronomical Society at Somerset House, Strand, London ordered a 4.25 inch telescope from Thomas Cooke &Sons. It was mounted on an iron pillar and had a driving clock.
August is both a supermoon and blue moon month, and we can also look forward to the Perseids, one of the most important meteor showers of the year.
There will be two full moons this month, falling on August 1 and the 31. The second full moon in a month is referred to nowadays as a ‘Blue Moon’. The Moon takes around twenty-nine and a half days to orbit the Earth once and except for February all months have either thirty or thirty-one days, meaning it is possible to have two full moons in a calendar month.
This use of the term ‘blue moon’ only goes back to the 1940s when a letter, sent to the American astronomy magazine ‘Sky and Telescope’ which incidentally is still published, asked the question ‘what is a blue moon?’. The answer was that it is the second full moon in a calendar month. The publishers of the magazine, realising that their answer was unproven, retracted their original statement. However, it was too late; the genie was out of the bottle, and for the last seventy-five years everyone has accepted this definition.
I have my own theory about the term ‘blue moon’. Each month I give the name of the next full moon, and as I often say, these names go back to the times of the monastic period in Britain around 1,000 years ago. The monks, who were amongst the cleverest people around during the middle ages due to their vast monastic libraries, knew full well that in some years there were thirteen full moons rather the normal twelve.
Monks liked order in their lives. They kept diaries and special dates were always marked in red ink; you may have have heard of the phrase ‘a red letter day’ which is a monastic saying going back over 1,000 years. I just wonder if, when this thirteenth full moon occurred, it was marked in diaries in blue ink as a source of irritation because it messed up a very orderly system. I once checked the reference library in York minster without success, but a future researcher will check the Vatican library and discover a monk’s diary with a full moon marked in blue ink!
In August we will see the second of the four supermoons visible in 2023. When the Moon rises on August 1 and 31 it will be closer to the Earth than normal, and consequently will appear to be 7% larger than usual. This will make it a wonderful sight. Of course, cloud can spoil the occasion, but with two supermoons in August and another in September, we would be very unlucky not to see at least one of the three.
The average distance between the Moon and the Earth is 238,900 miles, (384,472km). When the moon is closer than that we have a supermoon. The August 1 supermoon will be 222,158 miles (357,530km) while the August 31 supermoon will be slightly closer at 222,043 miles (357,344km).
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.
In 1864 Dr William T Radford of Sid Mont, Sidmouth, Devon purchased from Thomas Cooke & Sons an equatorial mounting for his French 4.25 inch Steinheil telescope. He also purchased in 1865 two Cooke & Sons eyepieces for above telescope.
Charles Pritchard FRAS (1808-1893) Hurst Hill on the Isle of Wight purchased from Thomas Cooke & Sons in 1865 an equatorial mounting for his Cooke telescope. I can only assume he wanted to upgrade the mounting for the telescope he had .
In the late 1850s Pritchard purchased from Cooke & Sons a 6.75 inch telescope.
Pritchard was elected Savilian professor of Astronomy at Oxford University in 1870.
In 1882 he undertook the study of the brightness of 2,784 stars, this was an important project at the time and for this work he was presented with the Gold Medal of the Royal Astronomical Society in 1886.
