Observation Session 28th November 2017

Observation Session 28th November 2017

By Richard Harvey

Members' telescopesIt was a case of ‘third time lucky’ for our new Trysull Observation Sessions. Two consecutive Tuesdays were postponed due to 100% cloud cover, but at last, the forecast was promising on Tuesday 28th November, and at 11am that morning, the text notification system informed everyone ‘it’s on!’

Members' telescopesPeople started arriving at the Village Hall at 8pm. It was very encouraging to see such a good turnout. Around twenty astronomers of all ages and experience braved the crisp November night, and soon there was a row of telescopes set up, scanning the near-cloudless Trysull sky. Not everyone bought a telescope, but they didn’t need to. The telescopes there were used by everyone, and people drifted from scope to scope, looking at various cosmic sights, chatting about what they were looking at. It was a very friendly, convivial evening. At one point, as many as eight different telescopes of various sizes were in use on the large expanse of hard-standing behind the village hall.

There are no direct street-lights behind the hall, and the adjoining field gave us a generous view of a low southern horizon. We were also joined by a waxing gibbous Moon in the south-west, 70% illuminated, affording wonderful telescopic views of the Bay of Rainbows, (Sinus Iridum), which was brightly sunlit across the peaks of Montes Jura, (as can be seen in Cath Adams’ fantastic Lunar photos from that evening).

The moon (photo by Cath Adams)
The moon (photo by Cath Adams)
Sinus iridum (photo by Cath Adams)
Sinus iridum (photo by Cath Adams)


Closer observations of the Moon revealed a double central peak in crater Copernicus, and crater Reinhold, very distinct under the mountain range Montes Apenninus. The rugged southern highlands also made for some very interesting lunar observing.

Orion (photo by Cath Adams)
Orion (photo by Cath Adams)

With the ‘Summer Triangle’ of stars Alatir, Deneb and Vega journeying westward, some observers took a look at the Ring Nebula M57 (a planetary nebula in Lyra), before it disappeared behind the Village Hall Roof.
The double star Alberio, in Cygnus, was also observed, before it dipped in the west. The distinct colours of the two stars were easily recognisable. A bright golden star joined by a smaller, blue neighbour. Another double star, Polaris, was also ticked off by observers.
With Orion rising in the east, early observations of the famous Orion Nebula (M42), proved tricky due to the distant haze from Wolverhampton, six miles away, and the low altitude of the constellation. We turned our attention to constellation of Auriga, and its splendid open clusters, M36, M37 and M38, all of which looked beautiful, and distinctly different from each other.

The circumpolar constellation of Cassiopeia was almost overhead by 10pm, and some ‘scopes were turned to its neighbouring constellation to look at the pretty double open cluster in Perseus. The open cluster of the Pleiades too, made for an excellent binocular object, as did the Hyades cluster, (the closest open cluster to our sun), in Taurus.

With Venus and Jupiter not rising till the early hours, and Saturn too low to see, planetary observations were tricky, but at least two telescopes managed to get a lovely view of Uranus, in the constellation of Pisces. Observers saw an unmistakable small blue disc. It’s always a thrill to see this distant ice world, one of the least-visited planets by amateur astronomers. (This great planet is currently, as I type, 2,871,515,225 kilometers away!)

Other deep sky objects observed were galaxies. M81 (Bode’s Galaxy), and its neighbour, the cigar-shaped M82. Both in Ursa Major.
With the winter constellations of Taurus and Gemini rising, and Orion much higher in the sky, the Orion Nebula became a much better telescopic (and photographic) subject as the evening wore on. The great open cluster in Gemini (M35) was also observed.

The village hall was open for people to nip in whenever they wanted, to use the toilets and have a tea or coffee and biscuits. A few people had bought sky maps and astronomy books, and it was good to have somewhere bright and warm to take a break. At the next session, there’ll be chairs set out for everyone too.

The evening was a great success, and we look forward to more observing sessions at Trysull village hall. Our sincere thanks go to the booking secretary Joe Harper for letting us use the venue, and thank you to the people that kindly put donations in the box towards the refreshments and room hire.

If anyone wants to add their mobile number to the text alert system, just hand it to a committee member at the next meeting and we will put you on notification list.