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About AndyWB

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    Astronomy! If you're in the Reading area and fancy meeting up sometime, PM me.

    Other than that, mountain biking, running, general geeky stuff.
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  1. I made it out for a look at the Moon, Jupiter and Saturn last night. It's my first time out with a scope in ages, though only with the 80mm. Jupiter was so clear! The Great Red Spot was right in the middle, and so obvious. It seems it's colour has returned a bit, and it's a bit more clearly separated from the SEB? There were also two dark festoons in the NEB just above it. It was a fantastic sight. The temperate belts I couldn't see at all, so I guess they're pale/narrow/missing at the moment. Also had my first look at Saturn in a while as it scudded between tree-tops. Lovely.
  2. Hi Kevin, only just saw this - I've not been on SGL for a while (house move and other things) I've been bothered by the police a few times. Well, I say bothered - the first time they were looking for someone and wondered if I was them, until they saw the 10" dob I'd hauled out the back of my flats. Then they were mostly interested in what I was looking at (a very dim Leo triplet - too much LP). I think they might've thought I was smoking pot too, but realised that it was my reading torch. Another time I was out in the wilds for a big night out, and I was just packing up when a police
  3. Messier 83 was the hardest for me. It just doesn't seem to get above the murk. Messiers 69 and 70 probably should've been hardest, but I got a lucky clear sky and found them both. I also tend to trawl round Sagittarius a lot during the summer. Messier 68 was my last. It seemed to take lots of planning, and I didn't get lucky with a crystal-clear atmosphere. When I did find it, it was pretty clear, though. M74 wasn't too bad, under a dark sky.
  4. FWIW, I found that a larger aperture's better resolution surprised me on globular clusters - I didn't expect them to change so much between 5" and 10", and there are a fair number that are visible even in my light polluted skies, so that might still be a positive to larger apertures still. However, galaxies are mostly rubbish in town - it's better to drive somewhere dark. My 5" scope somewhere dark beats my 10" in town.
  5. FWIW, I'd suggest an 8" or 10" - though for the Great Red Spot, well, I find my 80mm refractor (3 and a smidgen inch) shows it quite well. I think there was a thread on here where we worked out that 6" is the minimum to resolve the Cassini division in Saturn's rings - though you might perceive it with a slightly smaller scope. I've felt like I could see it in my 5". The reason I'd suggest the 8", though, is for globular clusters. At that kind of size, some of them will start to resolve. When I moved from a 5" to a 10" scope, I didn't expect that - but suddenly globular clusters were so mu
  6. The bigger aperture of the 150 should also have a better resolution - a Dawes limit of 0.77 arcsec for the 150mm, rather than 0.97 arcsec for the 120mm. I've attached example fields of view, 25mm eyepiece, looking at M45 (From astronomy.tools ). There's not a huge difference. I'd choose the 150 for visual. f/6 isn't THAT fast. Better resolution, better light gathering. .
  7. For what it's worth, I have found M79 from Berkshire with a 5" scope - but it was low, and needed quite a clear night. It did take a few attempts.
  8. Hmm. To me it looked closer to the core than the sketch, but I was at x40, so that might match. Certainly, the angle relative to the long axis of the galaxy looks about right. So maybe!
  9. I was looking at the galaxy NGC2903 in Leo last week, and I found that it looked like it had two bright patches in it - the core, and one away from the core, but still kind of within the fuzz of the galaxy. Looking at Skysafari, I can see there is another NGC within the galaxy shown - NGC 2905. It is, apparently, a bright star cloud within the galaxy. Does anyone know if this is actually visible in a 10" scope?
  10. Was the satellite bright? It wouldn't have been a reflection in the eyepiece? I've had that happen with a bright satellite.
  11. Sagittarius. "...not because they are easy, but because they are hard..." It's much richer than Orion, though hard due to it's altitude. It's worth the effort, though. A summer evening trawling through these low gems - fantastic.
  12. FWIW, with my SW 130p (the 650mm focal length one - I think there's another one?), I can normally only see the two main bands, and sometimes hints of the temperate belts - but it takes time, patience, and a cooled scope. Usually I'd be using a 5mm BST Starguider as the eyepiece. However, much depends on the conditions. Sometimes, that 5mm is just too much magnification. Then at other times... well, I did one remarkable night use a 4mm eyepiece, and have a fairly sharp view of Jupiter, with the Great Red Spot coming around. That was a rare night, though. I also find that, for some re
  13. Hmm. Feb 2013 - Heritage 130p Oct 2013 - Skywatcher 250px Jan 2014 - Lunt 35 April 2105 - Equinox 80 And I still have all of them. Suddenly I feel hard done by.
  14. To be honest, I don't bother with a find on my little refractor; with a low power eyepiece it has such a wide field of view I don't think that it need a finder scope, not when I'm using the Rigel Quickfinder too. It's a nice looking setup.
  15. Ghost of Jupiter Nebula? Messier 46, and the planetary nebula NGC2438 within it?
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