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Everything posted by Wikiastro

  1. Hi, I follow a guy on YouTube who makes some.great space based videos. Some are about games (My favourite, Kerbal Space Program!), but some are about space science. This is a clip describing the process of refining the shape of the KBO that the New Horizons probe is aiming for, now it's done with Pluto. They use Skywatcher dobs! Really good video, check it out.
  2. Hope the little fella's ok. We met a large healthy looking specimen on the way home from a party last Saturday.
  3. This is definitely my opinion. Especially in crowded British skies. I mean, look at this. This is now. 11 20 pm on a Tuesday.
  4. Ha! Just read that - wow it degenerated quickly!
  5. WOW. There's an illustration of how dangerous solar observing could be! Glad your ok, and it was only a lens cap.
  6. I'm guessing that they'd ruin any astrophotography going on in the area too.
  7. Great photo - wouldn't be surprised to see it featured in an astromagazine!
  8. I spend quite a bit (far too much) time browsing the internet and had a look at someones website from a while back, looking at the styling. It contained a how to guide and review of using a rifle green laser sight. This is the site. A quick look at ebay places these sights in the £15 range these days, and they strike me as ridiculously easy to use. BUT, and it is a big but, I have a couple of issues 1. Are they anti-social? I've seen they are banned from star parties, which is reasonable. But how visible are they from away from the beam emission site? I wouldn't want the local yoofs trying to find where that laser was coming from. 2. Do you think they might be frowned upon by the authorities? There have been far too many incidents of lasers shone at aircraft for my liking. I'd love your opinions on these gadgets please! Does anyone use them? David
  9. Good luck Michael - the weather looks good. Solid overcast in the UK, so very little chance of seeing any of the little nibble the moon will make here.
  10. We hired a lovely cottage in Dumfries and Galloway that was quite cheap and had lovely dark skies a couple of years ago. But it was Scotland. So got one night of partial clear skies in a week.
  11. Looks great - make sure you share some pictures! David
  12. Good point - It's harder to start something moving on the end of a long bar compared to a short bar. I'm only making a hypothesis - all metal has some flex in it, and a longer bar with a weight on the end would flex more than a short one, then spring back causing vibrations to last longer. It'd need testing to prove it. Both seem to suggest a short bar with a heavier weight is better.
  13. The moment of a heavy weight on a short rod is the same as a lighter one on a long bar. BUT, I would guess a longer bar, with a weight at the end of it would flex more and hence cause more vibration. Try it and see!
  14. Hi, by coincidence I was browsing the internet the other day and came across this website. The gentleman here has imaged the Crab Nebula pulsar. There are links to some professional methods in his method too. Hope this is useful. David
  15. Hi, lovely photos. Monster trucks! Clear skies, David.
  16. Great report - plenty of faint fuzzies on show!
  17. All I need now is for it go dark, then I can test it. Already had a minor hiccup - Rotating the tube causes collision between the prototype and the installed finder. Next time, attach to other tube ring! Shame there is already a thread in the other ring.
  18. Wikiastro

    Hi :)

    Hi, and welcome! Hope your new tripod turns up soon. Dave
  19. That's cat litter tray freshener!
  20. Hi, as I regularly struggle to get my scope on target, especially in dark skies (too many stars!! ), I decided to have a look for some sort of wide angle finder. I, of course, came across the ubiquitous Telrad and Quikfinder reflex sights, but if I can put £35 towards a lens, then I would rather do that. I decided to have a go at making a very simple little gunsight type finder, inspired by this American gentleman, Jerry Oltion. I also came across this article on how to tune up your telescope. I used what I had lying around to construct this sight, except for a few bits. I had the wood and the screw in eyes. I sourced a locking ball head camera mount for £4.99 from the online jungle related store, and purchased some glow in the dark paint from B&Q for £5 (this may prove unnecessary!). The paint is on the eyes and should provide a gentle glow (I hope). I had a lot of trouble locating any 1/4" Whitworth or UNC to attach to the ball head and was going to resort to glue, but a local ironmonger had a few bolts and just gave me one (http://www.geospence.co.uk/ if you live in the Leeds area - they were brilliant). This little gizmo screws into one of the camera connections that are already machined into my tube rings, and the little wingnut will allow me to align it. My calculations suggest that if I rest my cheek on the end of the wood, it will show me a 5 degree circle of sky - not far off a Telrad circle. All I need now is a clear night to try it out. David
  21. Nice report. I suspect you've done better than most people tonight. Solid overcast in Leeds. I failed to split iota cas last week. Will try again, hopefully Tuesday is looking ok. Have quite a bit of LP here so I'm trying doubles at the moment myself. I'm going to try some of the ones you've mentioned here. Thanks! Dave
  22. Keep up the good work! Sounds like the start of a cracking session. Dave
  23. Skywatcher 150p (750mm focal) and used up to a 10mm with a 2x Barlow, so 150x mag.
  24. Powys is a big county. Where about are you Beulah? I'm heading to the Meifod area.
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