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wxsatuser last won the day on December 17 2017

wxsatuser had the most liked content!

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About wxsatuser

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    Blue Straggler

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  • Gender
  • Interests
    Weather satellites
    Gscale trains
  • Location
    West Sussex
  1. I'm with Olly, it's most likely PA is out, a DARV will prove it in about 2minutes. M81/82 is closer to the pole DEC 70, you moved to M3 DEC 28, which is much further from the pole, hence more drift. Have you actually tried PA with the polarscope?
  2. https://banburyobservatory.wordpress.com/
  3. Have found another image of Iridium 5 but not as good as yours. https://catchtheiridium.com/gallery/?contest=photo-detail&photo_id=1745
  4. Never seen a trail like that, date and time of the that sub?
  5. Loads of queens around this year, had one inquiring about my obsy last weekend. If it builds it's curtains I'm afraid, don't like killing but it's my obsy. Watched a queen at work that got caught in a web and was fighting off two false widows. She gave an enormous effort and eventually fell out of the web onto the window sill. I took her outside, she being a bit knackered I had a good look at her, German wasp, then off she went.
  6. That is Sharpless 119 or Sh2-119, normally forgotten by what is next door.
  7. Hard to say, depends on the fov you want as the 183 is a 1inch sensor and the 163 is 4/3 a tad bigger. In any case you need to look in column 2 of table three for Canon mount or column 1 for Nikon, and each link is an item you need. Next to each item is a number in brackets that gives the amount of back focus each item uses.
  8. Are you mono or colour?
  9. https://www.qhyccd.com/index.php?m=content&c=index&a=show&catid=94&id=16&cut=1 Table 3 near bottom.
  10. I gather some Powershots have Sony sensors and there are rumours that a DSLR or mirrorless is getting one.
  11. It will not be on the mirror as that's out the way when shooting.
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