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Stu

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Everything posted by Stu

  1. What is the book? Looks great. Just looking at another of the descriptions to verify I'm correct. The Schiller-Zuchius Basin is not necessarily easy to work out from the notes. I believe the orange oval is correct, but there is a possibility, I guess, that the shallow basin outlined in red is it?
  2. Thanks! Flamsteed Ring is a much better description
  3. Thanks Billy. I'm considering amending one of the documents to ensure accurate phases for the best time to view, and also additional help to be able to correctly identify the objects, which, as you say, are not always clear; the Schiller-Zuchius basin and Imbrium lava flows being two more! Flamsteed P has caused me some confusion, I have assumed that it is the large, broken cirular crater outlined in the attached? There was also a faint inner crater which I could see, concentric to the outer.
  4. until
    As per Chris's post, GRS and a shadow transit of Io are visible tomorrow morning, weather permitting of course! Io Shadow Transit starts at 2:28am, finishing at 4:39am GRS Transits at 3:32am, and Jupiter itself transits the meridian at 4:53am Between 3:30 and 4am could be an optimum time, Jupiter at around 19 degrees and above, not far off its highest at 21 degrees.
  5. Alan, I've done this now. I've locked the thread so it remains clear, but if anyone has any more documents or links which would be helpful, just pm me and I can add them
  6. This is a sticky for resources which can be used to help complete the Lunar 100. They complement the other sticky to Doc's fabulous descriptions from his observations. Additional links or material will be added when they are found. The following links provide useful material: http://www.skyandtelescope.com/observing/the-lunar-100/ - The original April 2004 article by Charles Wood, which started the whole thing off! http://www.astrospider.com/Lunar100list.htm - Useful list with images for most targets, co-ordinates and brief description http://www.salzgeber.at/astro/moon/L100.html - Another table with descriptions and also links to high quality images http://www.shoestringastronomy.com/lunar/lunar100.htm - This link has some useful annotated sketches in the links, not for all targets but quote a few. http://www.astrosurf.com/cidadao/moon.htm The OTL100.pdf attachment contains some useful info about when is the best phase to observe each target. I've tested some of these and they may be a day out, so use it as a guide rather than absolute fact! Lunar 100 Object List.pdf Lunar 100 Object List and Notes.pdf OTL100.pdf
  7. Ok, will have a look at this and pull a sticky together. Thanks
  8. Hubba Hubba! Now that's a Mak! Luvverly
  9. It seems like the AZ5 is quite capable but the standard tripod it comes on is nowhere near as good as the standard AZ4 which I think is the 1.75" stainless steel job?
  10. Yes, it's surprising just how much effect liberation has and some of these can definitely only be seen at the correct time. Will see how I get on, stock take of current tally required first, although it would be nice to start afresh.
  11. I thought, given the current interest in the moon, lunar X/V etc that I would post up some info on the Lunar 100. This is something which I would love to complete, but do struggle with getting the weather/opportunity to coincide with the necessary phases. Must try harder! I need to document the ones I've seen already and move on from there, note to self! Much of this info is on SGL anyway, I thought I would bring it together in one current thread to highlight it. http://www.skyandtelescope.com/observing/the-lunar-100/ http://www.astrospider.com/Lunar100list.htm http://www.salzgeber.at/astro/moon/L100.html Then of course Doc's wonderfully complete descriptions after he completed the 100 with a 16 inch Lightbridge One note of caution about the info contained at the end of the OTL100 document. Last night I tried at least to identify the location of Flamsteed P, mentioned as being at it's best on day 10 of the lunar cycle, which I believe was last night. When I checked, it still appeared to be in full shadow so do sanity check this info. Otherwise, have fun, and do post back how you are getting on. Lunar 100 Object List.pdf Lunar 100 object list and notes.pdf OTL100.pdf
  12. until
    A little lower than the April event but still should be a good one. Starting at 6.42pm at around 40 degrees altitude, finishing at 11.03pm at around 20 degrees.
  13. until
    It's there, but you won't be able to see it, Moon below the horizon.
  14. until
    This should be a good one. Moon visible throughout and at 57 degrees at the start. X and V should be on show.
  15. until
    Don't get excited by this one unless you are way south. It starts at 06.59 and finishes at 11.20, but the moon doesn't rise in London until 10.10 so you might just catch the end of it.
  16. until
    The GRS transits the meridian at 6.02am Jupiter will be 20 degrees above the horizon at this point, with sunrise still nearly an hour away at 6.54am. Timings and altitude from London.
  17. Not a bad buy I suspect. I think @Helentried out the Pronto mount so may be able to give some input. It's not going to be amazingly steady but on a budget it's probably better than some other options.
  18. I know it involves potentially more expense, but it is work trying the head on a better photo tripod or even something like an EQ5 or 6 stainless one. I think the mount can take the weight but the standard tripod is not so strong. I use my AZGTi on a photo tripod and it is very solid.
  19. until
    The Lunar X is visible tonight, along with the Lunar V. Timing I have is 18.07, I believe that is the peak of the event but it may be the start so keep checking! EDIT I now believe 18.07 to be the start, and 22.26 to be the finish of this event. If you have more accurate info, please add to the thread in the Heads Up forum. Lunar X 2018 TXT.pdf
  20. I think you are correct, it just happens that I believe in many instances the ED scopes perform better in the other respects too, particularly at shorter focal lengths needed for a Quark. The 102mm f11 scopes and TAL f10s are very good for instance for PST mods, but the focal length is too long for a quark really, you need to keep the power down because of the x4.2 barlow element built in so a faster ED helps with this. I tried a 150mm f5 with a Quark but the SA made the high power views quite soft. The 152mm f5.9s are much better in this respect whilst still not EDs.
  21. It's not a matter of CA, it is to do with the figure of the optics, lack of SA etc which give the additional fine detail which is easily lost.
  22. Lovely I thought you had your eyes on that one
  23. No, it's the same thing, they just don't use the S most of the time.
  24. Hi Britto, There are many scopes out there to be avoided, with poor optics or poor mounts, or both. You have received good advice here, a number of different options but all from reputable astro manufacturers which will perform well. It is worth taking the advice, and also buying from a reputable specialist. Stu
  25. The Opposition of Jupiter, with the planet at its largest and best placed for viewing. Visual magnitude will be -2.5 and the apparent diameter 44.8 arcseconds. The planet transits the meridian at 12.59am, when it will be at 22.6 degrees above the horizon. GRS will be transitting at 2.14am on 9th (don't get caught out by the date)
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