Jump to content

Stargazers Lounge Uses Cookies

Like most websites, SGL uses cookies in order to deliver a secure, personalised service, to provide social media functions and to analyse our traffic. Continued use of SGL indicates your acceptance of our cookie policy.

domstar

Members
  • Content Count

    1,002
  • Joined

  • Last visited

Everything posted by domstar

  1. Thanks for a wonderful program. If my computer powers off through lack of use while stellarium is on screen, then when the computer wakes up again, stellarium doesn't work. If it's on full screen when this happens then I have to restart the computer- not just stellarium. If it is working in the background when the computer goes to sleep then everything is fine. This has happened on two laptops now so I'm guessing it's a bug not a problem with my computer's settings.
  2. Very nice. 'Mindfulness' covers it very well.
  3. From the Cambridge Double Star Atlas- 'The exit pupil is inversely proportional to the apparent diameter of the Airy disk-as the exit pupil becomes smaller, the Airy disk will appear larger.' It goes on to say that for most observers exit pupils of 1mm or less is when the Airy disk becomes visible. I must say, this works for me. At lager exit pupils my stars are like you describe but at smaller exit pupils I can see a perfect dot on brighter stars (the Airy disk). Fainter stars are always points but are too faint to show that Airy disk dot.
  4. I've read it twice. It's excellent. Just the right level for someone like me and written clearly with occasional humour.
  5. That's excellent. Sketching is definitely on my to do list. Just can't seem to make that first step. This picture brings me that much closer to giving it a try.
  6. Great report. I've been looking at the same things.
  7. Excellent report. I've been looking in the same places. Moving from those open clusters to the Leo galaxies in a frac is quite a shock. Both wonderful in their own way but like a different hobby.
  8. Great report and some the way you described the open clusters really resonates with me. I think M46 is far superior to M47 and M50. I just wish it would get up a bit higher.
  9. The Auriga clusters are magnificent. When I'm on the balcony I can only get the most Eastern one. It's warm enough to get to a less obstructed place now but, alas, I might be stuck at home this spring. We're not supposed to leave our home (with a number of exceptions). I'd probably be OK alone outside at night but not sure about risking a large fine. It's a shame- doubles are fine but I'd like to go somewhere darker for galaxy season.
  10. @scarp15 I know what you mean about time line. The Eskimo, while unimpressive in my scope, was my first non-Messier dso and also an early target from TLAO.
  11. Now that open clusters are around, thought I'd give double stars a rest. I started with the beautiful M35 and then to the superior M37- two of my favourite open clusters but they didn't seem to be doing it for me. I decided to try for some Gemini doubles and I was so glad I did. There are some beauties there. I loved Wasat, and as I moved across to look for the Eskimo Nebular, I stumbled on the exquisite HIP 35909- the next star along. 1.9'' separation. A real bonus. I moved on to Castor and Kappa Gem via the Eskimo. I like double stars more and more. After that, Leo was travelling across my view. Light pollution is noticeably worse this year but I tried for the galaxies M105 M95 and M96. The background was almost white but I just about found them right on the edge of vision. Very light grey on a light grey background. It felt like a different game altogether from double stars but I was excited about the spring challenges that lie ahead.
  12. Galaxies in a small frac. Obstructed views. Fighting with the Hamburger.- welcome to my world. A great read. I didn't know about a third galaxy with M81 and M82. Can't wait to give it a try.
  13. Thanks, yes it was a lovely session. The tripod legs were just a bit higher so viewing was more comfortable for that object. Thanks for the help. It makes a big difference if you're sure you're in the right place and it's possible. Otherwise I would've overlooked it.
  14. A great image. I have lovely memories of finding and observing that galaxy.
  15. Wanna tell you a story... What to do on a SSW facing balcony when Orion gets too low to enjoy those crisp tight doubles? The answer is always open clusters. Having failed at the Rosetta a couple of times now, this was my target for the evening. Thanks to @Littleguy80 I was sure of the hop from the unjustly neglected (tonight) Christmas Tree. I remember reading that it was the first open cluster to be aged by measuring which stars had turned into super-giants. (please correct me/ remind me of the details). I found the Rosetta easily, and screwed in the UHC to my rarely-used 32mm Badder plossl. It's got a narrrow field of view so I use my 2 inch 30mm Aero for widefield. At first I thought I was imagining the nebulosity but the longer I observed, the more convinced I became. It ain't exactly pretty (in a 4 inch) ain't exactly small..... But I definitely saw it. More like a donut slightly greyer than the background and more obvious on the left of my refractor view as a starless ring. Very satisfied, I moved to catch M47, with the beautiful twin stars in the middle. I saw the far superior M46 partially covered by tree branches. Then to Cancer and to M67, a lovely cluster- by far my favourite of the two Messiers in Cancer. As I increased magnification, the stars winked out until I noticed high clouds around. I packed up with enough time to spend the evening with my wife. Just before we turned in I looked again outside. Leo and a falling Gemini got me excited about the nights to come. Thanks for reading.
  16. @Littleguy80 Thanks for that. I think I found the cluster (not the nebula), which is a start. Your picture is clearer than Stellarium. Where do you start your hop from? I kept getting lost round there- too many stars and not enough stand out ones.
  17. Stuck at home with a bad back as schools, pubs, gyms and shops are all forcibly closed around me. My one outlet yesterday was a bit of observing. First the smallest hint of a sunspot then a beautiful Venus in the early evening. When it got dark, the Orion Nebula with a UHC looking magnificent despite the dim green Trapezium, but subtly more detailed than my usual unfiltered views. Then to the Crab Nebular, always dim but awe-inspiring. After that it was open cluster time (I hoped) M50 is nice enough but not as satisying as the Christmas tree. I'd love to see the Rosetta but I kept getting lost around there. No Hubble's variable nebular and a few candidates for open clusters as my back became worse and worse due to my odd sitting positions. So great to get out again. Not a wonderful session but written as a plea for others to put a report in and relieve the boredom of the many stuck inside. Also, any help with the Rosetta. Does it need a UHC? That would make star-hopping to it much more difficult. Is it even doable? Is the cluster recognisable? Any help would be appreciated. Take care people. Thanks for reading.
  18. I know the Zodiac signs better than the others. If you know a few people's birthdays and their signs, you'll start to know which constellation follows which. Now I'd like to look at Leo with 5 Messier galaxies and the Hamburger plus the beautiful double Algeiba. Then to Virgo and galaxies galore plus the double Porrima and so on. It gives me something to look forward to. Of course Orion is also a must. You could also make a good case for Ursa Major and Cassiopeia as they are bright and always around.
  19. domstar

    M81/M82

    Looks great to me. I love the delicate detail and the wispiness of M81.
  20. Ha. yes 22 degrees radius not diameter. Never seen it before. Amazing.
  21. Thanks. If 22 degrees is your open hand at arms length then either I have very small hands, very long arms or it's a 46 degree halo. Could that be possible? I'm awestruck. Edit- obviously not 46 degrees as it's not centred on the sun.
  22. Hi everyone, I've just popped out on the freezing balcony and there are high clouds around. When I looked at the moon, there was a huge circle of cloud all the way past Procyon and centred on the moon. It's like a giant smoke ring. It looks amazing. Have you seen this effect before and what causes it. It must be something to do with the light of the moon cutting through the high cloud but why such a defined border? Can anyone shed some light as it were.
  23. Sounds like a great session- beautiful doubles and galaxies. The Hamburger has been a real challenge for me and I'm looking forward to renewing the battle. Never tried a carbon star. I have to get onto it.
  24. Funnily enough I've just been looking a Venus. It was a horrible mess and when I stopped the aperture down it improved significantly. Unlike the moon there was no detail to miss out on, so I think it worked well. (Shame about the snow storm that sent me inside).
  25. Great report. I have a 100mm f9 refractor on the balcony and I'm squeezed, or treading on crocs or scraping my chair to get into a good position. Maybe a Mak is the answer. I never go above 150x and prefer around 100x on all but the closest doubles. 1mm exit pupil should be good. Your problems with Sigma Ori isn't down to lack of magnification. It's an easy split at 90x. It must be the conditions or light pollution. It is fairly faint so less mag can help with that. Anyway, I enjoyed the report.
×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.