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brantuk

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About brantuk

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  • Birthday 09/12/54

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    Leicester

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  1. When you have Saturn in focus you'll also see a tiny dot alongside it (approx bottom right) which is Titan - it's main moon. I'm not sure what you have in your image but it's deffinitely out of focus. Hth
  2. Cracking job Daz and I'm loving the illuminated pointer - very impressive well done.
  3. Nice work so far Daz. Did you consider a red micro light off an old string of xmas tree lights.... I've seen someone use these quite effectively.
  4. The site is in an old slate quarry and the ground is really tough - first time I camped there (years ago) I bent every peg in my pack. This is what I use now for awnings and tents - as well as a solid metal hammer and strong peg extractor. https://www.amazon.co.uk/Hard-Standing-Ground-Awning-Pegs/dp/B002HINMWG/ref=pd_day0_200_5?_encoding=UTF8&psc=1&refRID=3YZ8VA1DA7QR4AE95ABW
  5. Hi JT - the difference is in the scopes - the mount is the same equatorial mount in both cases. The SCT has a long focal length and slow focal ratio which results in a narrower fov. These properties make SCT's good for focusing on and observing/imaging planets but not so good imaging dso's. It will take twice as long to gather subs than an f-5 scope and requires more accurate tracking and guiding. The Newtonian has a fast focal ratio and wider fov which facilitates dso imaging. In terms of mounts - an alt/az mount has to track in two planes (altitude and azimuth). This requires two motors and guiding for reasonable results. But in this respect only observatory class mounts can get anywhere near the same quality of results as EQ mounts. An equatorial mount only has to track in a single plane (RA) - the planets rotation takes care of the other plane for us. It still needs guiding as well as minor adjustments in dec due to PA errors - but the natural path followed across the sky by an EQ mount is far preferable and more accurate for dso imaging with mass produced mounts. Hth
  6. Good move - you'll have fun - enjoy!
  7. Cold clear nights provide the best seeing and transparency through the atmosphere. Warmer weather heats the Earth and when it cools at night time all the heat is released into the air causing atmospheric disturbance. So whilst you can use your scope any time of the year, winter provides the best conditions for it.
  8. A Skywatcher 10" solid tube on the NEQ6 Pro is a beast and not really stable enough for observing even on the stillest of nights - it vibrates at the slightest touch - for AP forget it all together. A 12" would be worse still and a Flextube 12" pretty much unmanageable. You really need a much beefier mount for anything over 10" is my experience. Hth
  9. This is the stuff I use on my 16" dob - Formica Pattern range StarDust HGP Quarry F1782 CW - see here: http://www.idsurfaces.co.uk/c-3379-international-decorative-surfaces-f1782-stardust.aspx It's around the same price and works a dream - see Mapstars 22" dob build thread in the DIY section. If you get some I'll split it with you happily. I need about a third but if there's no other takers I'll do 50:50 with you.
  10. Extenders and barlows do the opposite of reducers - so it wouldn't make sense to use them together. Hth
  11. Great result Paul! Glad your gonna get sorted - and it saves you all the effort of stripping the mount down which you don't need right now.
  12. The thing is - its main purpose is not just a filter holder. It's a self centering T-adaptor with an easy to use twist lock action and non marring compression ring. It just happens to have a thread for a filter inside it too. So that's four features in addition to your single feature requirement. Filter holders tend to be circular and hold multiple filters typically five or seven, and they allow you to change filters for any eyepiece or camera attached and usually used for imaging. Some are mechanical, other electronic. The filter holders for newts are are typically on a sliding tray that fits inside the tube and holds three or four interchangeable filters. There are other designs too that are included in some specialised focusers like e.g. Moonlite. What I'd advise is to surf around the different astro websites to find a more simple eyepiece adaptor. You want a low profile one (so you don't push the eyepiece out of the field of focus) which is threaded for 1.25" filters. Or a 2" to 1.25" one where the 1.25" piece is threaded for filters as well as the 2" part - then you have the choice of both sizes. FLO have a good selection and so too do 365-Astronomy. Hth
  13. Yup - the polar alignment is more important than any of your 4 variables.
  14. That's pretty normal for most average scope instructions Mark - but it's still exciting eh? Congrats again!
  15. Amazing shots - thanks for the link Stu.