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uk.sci.weather (UK Weather) (uk.sci.weather) For the discussion of daily weather events, chiefly affecting the UK and adjacent parts of Europe, both past and predicted. The discussion is open to all, but contributions on a practical scientific level are encouraged. |
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#1
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It's been quite a while since I last used a telescope - in fact I think it
was October. My interest tends to wax and wane. That and health/weather/ life getting in the way, has prevented me from observing. However, the sky was gloriously clear on Saturday evening, the Moon wasn't a problem and I was healthy and at home. So, I got Mini Hubble (my Europa 250) out of mothballs and into the garden. I'd charged the batteries for the mount earlier and, while not fully charged, they'd do. I wasn't going for the long haul this time, just a refresher to get my feet wet again. Started out with M42 of course. In the 32mm e/p (x37.5) it was a glorious sight. The four main components of the trapezium were evident, if a little on the small side. Bumped the e/p to a 20mm (x60) and this gave the best view. The nebula filled the field nicely. Tried adding a UHC filter but I felt it didn't add much to the view so removed it again. I left the 20mm in but re-added the UHC and aimed myself at zeta to see if I could detect the Flame Nebula. Nope. Tried averted vision, eyes closed for a period, the usual tricks but I just can't make it out. Feeling slightly despondant I aimed at M45, but bumped it back down to the 32mm+UHC. The Pleiades are a lovely sight but I just can't make out any of the nebulosity. It's probably more to do with my mag 4.5 skies than any defects on the part of the optics, but even so it was disappointing. In truth though I've tried and failed on this before, so my hopes weren't high. M45 remains a lovely sight though. Decided to give Saturn a whirl. Got her centered in the 32mm, then upped to my favourite planetary viewing combination - a 20mm coupled to a Televue x5 Powermate. This gives me a magnification of x300 but leaves me with the good eye relief of the 20mm. My view of Saturn was probably the best I've ever had, bar none. It justified my outside excursion totally. The Cassini Division, normally somthing I have to struggle to see, was etched like a line of blackest ink on the rings. Many bands were visible on the planet itself, the shadow of the planet on the rings was visible, the darker band of the inner ring as it crossed the planet...it was all there for me to see. I spent about 30 mins just staring at this sight. Couldn't see the Encke gap but then I wasn't really trying to. Having drunk my fill of Saturn (and promising myself to return at the earliest moment possible) I decided to end the evening with NGC 2392. This is the Eskimo Nebula, a planetary in Gemini. The first time I tried to find it it took me an hour. That was two years ago and I hadn't been back since, so I thought it would be interesting to see how long it took me this time. 5 minutes. The combination of knowing roughly where it was, coupled with my knowledge of what I did wrong the first time (didn't use enough magnification) and, let's be honest, luck, all played in my favour. A 2x barlowed 20mm ep gave me the best view. One thing I've noticed (just as an aside) is that despite the fact that I have a fairly good range of e/ps (4, 6, 10, 15, 20, 25 and 32 mm) I tend to fall back on the 32mm and 20mm for my general viewing. Sometimes I couple them to either a x2 or x5 adaptor. This is simply due to the fact that the 20mm is a good e/p (even though it's a no-name Plossl) and the eye relief is good. Sorry for this rambling and rather unproffessional report. Jim -- Find me at http://www.ursaMinorBeta.co.uk JediGeeks http://www.jedigeeks.com "Ah, gentle dames, it gars me greet, To think how monie councels sweet, How monie lengthen'd, sage advices, The Husband frae the wife despises!" |
#2
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On Mon, 20 Feb 2006 09:43:55 +0000, Jim wrote in
snip the fascinating detail:-) Sorry for this rambling and rather unproffessional report. I really enjoyed reading that as it reminded me what I used to do with one of my sons, many years ago, albeit with much lower powered equipment. Just a thought - was this really meant for uk.sci.astronomy? g Looks like being the 3rd glorious day's weather on the trot, here in NI. -- Mike 55.13°N 6.69°W Coleraine posted to uk.sci.weather 20/02/2006 09:53:22 UTC |
#3
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In article , Mike Tullett wrote:
On Mon, 20 Feb 2006 09:43:55 +0000, Jim wrote in snip the fascinating detail:-) Sorry for this rambling and rather unproffessional report. I really enjoyed reading that as it reminded me what I used to do with one of my sons, many years ago, albeit with much lower powered equipment. Just a thought - was this really meant for uk.sci.astronomy? g er...*cough* yes. Damn. Too much blood in my coffee stream... Looks like being the 3rd glorious day's weather on the trot, here in NI. Looking good here in Cheshire as well. Sorry about the post :-) Jim -- Find me at http://www.ursaMinorBeta.co.uk JediGeeks http://www.jedigeeks.com "Ah, gentle dames, it gars me greet, To think how monie councels sweet, How monie lengthen'd, sage advices, The Husband frae the wife despises!" |
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