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Everything posted by acercon3

  1. Nik271,John,Mr Spock I did not check for dew on the corrector plate but did have my dew shield in place. Perhaps I should make a mental note to check this in future. That was my first attempt at a star test so I may be a bit woolly on exactly what I was seeing other than reporting that the obstruction was centred. I have checked out the link provided by John and suspect that I need to revisit the star test procedure and subsequent steps . I bought the 8SE in July and have never run this type of test or collimated before so strongly suspect that this is where I need concentrate my efforts. Many thanks for your input.
  2. A further bit of info ......the scope was out until 2200 ish , I attempted the doubles between 9 and 10 so cool down should not have been an issue.
  3. Hi John Thanks for getting back to me . iI popped the scope out ar 1600 and started off with Mars and Uranus around 1830. At around this time I decided to check the collocation and think this was done on either Pollux or Aldebaran ( my alignment stars). The test showed a perfectly centered obstruction , no skewing. I’ll check out the link you provided. thanks Alan
  4. Last night we had the first clear night for sometime so decided to get my 8SE out early at 1600 hrs in order to cool down . The plan was to have a look at Mars and Uranus and later on when Orion was up to have a look around here and try to resolve doubles in Alnitak , Mintaka and Rigel. I’ve only been observing since last January with bins and since July with my 8SE so am not hugely experienced. I’ve done loads of research etc and think that I’ve understood the principals but have had no practical experience gained from interaction with a fellow enthusiast. My eyepieces consist of the Meade Plossl kit which includes the 2x Barlow and the 25 mm Celestron ep that came with my scope. Having tried to unsuccessfully resolve the aforementioned doubles previously I decided to check my collimation just to be sure that all was in order. This exercise showed all to be in order. Mars appeared pretty much as I expected although rather smaller than we were seeing in recent months. Over the piece my views of Mars have been a bit disappointing , I think that I have only had one fleeting glimpse of the SPC over the past few months. On to Uranus which has also disappointed. I have never been able to resolve it to a small disc. Rather a blueish tinged source of light which could not be distinguished as a planet. Mags used were 160 x & 220 x. The exercise to resolve the aforementioned doubles resulted in each of these stars being brought to a point of bright light under various mags. None of which showed any separation . From my limited experience I thought that the conditions last night were pretty good and that prior to setting up was hopeful that some clear and crisp views of my targets may be had. BTW I live rurally and have Bortle 4 skies. I’m in my 60 s so eyesight is not what it once was , may this be a factor in why I am unable to get a resolution on these doubles ?
  5. Many thanks for the welcome and the pointer towards AAS. I am looking forward to learning more about this fascinating subject. Alan
  6. Hi All i’ve been lurking for a short while but decided to take the plunge ! I started gazing with binoculars in January and have since invested in a Celestron NexStar 8Se so have also taken the plunge in a financial sense also . No doubt I’ll be asking plenty of questions . clear skies to all.
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