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Graeme

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  • Gender
    Male
  • Location
    51º21'N 0º33'E
  1. Hello, I bought a 10" Skywatcher Dob for similar economic reasons, it made sense to me to spend my limited budget on optics rather than electronics. You do get used to tracking by hand but it is a bit tricky at first. I have been toying with the idea of building an equatorial platform for the Dob to track objects. Anyone used one of these?
  2. Hello. They're still selling these on Ebay. http://www.ebay.co.u...984.m1438.l2649 I came across this one today so I dropped in on the forum to see if there was any experience of them. I'm always wary of bargains because it's usually true that you get what you pay for. On this occasion I'll go with Aussi Skywatcher's advice and add it to my Farther's day pressie list! Anyone else got one?
  3. The new dob I ordered came last Thursday! It was clear Thursday night but I didn't get it assembled! There's a chance of clear sky before sunrise tomorrow morning in the South East, I'm setting my alarm for 04:00.
  4. Well how about that then! the focuser has a lens at the bottom of it and I've never noticed!!! So it is a Bird-Jones design. I suppose you don't often look down an empty eye piece tube, you put a dust cap on it or an eye piece in it! Thanks for everybody's input for solving this conundrum. Graeme
  5. Ronin, it is a 114mm. A spherical Bird-Jones design, sounds creative! I'll Google it. There's just the two mirrors in the tube and the EP in the focuser. There doesn't appear to be any other optics. BlueAstra, it's just a regular Newtonian Reflector. Maybe the Bird-Jones uses a convex secondry to increase focal length. It was never a scope to win awards. Good seeing conditions are required to see a DSO but it could get there with the more prominent ones like M31 and M42. It has blown my mind a dozen times and is responsible for my current addiction!
  6. I bought a new telescope (yay!) so I'm selling the old one on Ebay. Whilst getting the information together for the listing I noticed that it has a focal length of 1000mm. I now know a lot more about optics than I did two years ago when I bought it. Since the tube is 450mm in length then the focal point without a secondary mirror would be 550mm past the end of the tube! In this configuration the secondary mirror would be diverting the image into the eye piece at a position less than half of its focal length. So how am I able to focus on the image with a normal length focuser and eyepiece? Graeme
  7. The Mid Kent Astronomical Society meets in Breadhurst and goes to Canterbury for viewing sessions but I don't know anything about them other than that I've seen their web site.
  8. Issac Newton or Stephen Hawking or Brian Cox. My boy says Shigeru Miyamoto or Notch!
  9. That's a great site, cheers! I've been using Horizon View on Fourmilab.com for a couple of years now. It's good for working out what's going to happen when but it doesn't print out a plan for the evening! Graeme
  10. Graeme

    Hello from Kent

    Thanks all. I set up the finder scope today using an obliging pigeon on a chimney stack about 400 yards away! Looks like clouds again tonight!
  11. I'll get on it this morning. Thanks Chris
  12. I suppose any good quality narrowish tape that will stay in place and prevent the bolts from rotating will do the job.
  13. Thanks for that Brantuk. I guess I had better go and get some more tape then! Thanks Chris, at least I didn't wind them right out!
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