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steppenwolf

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About steppenwolf

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    Moderator
  • Birthday 21/03/52

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    http://www.skyatnightimages.co.uk

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    Nr. Wiston, West Sussex
  1. My homemade scope mounted acquisition box

    Very smart indeed - well done!
  2. star shape issue

    Hi David, here is a simulation image showing what happens if you increase the anti-blooming gate adjustment too far, you get 'suppression' of the star disk - the aim is for a fully saturated star to have no artefact either white or black.
  3. HELP NEEDED.........

    Can't think of any reason why not, if you can find a vendor of Win 7.
  4. HELP NEEDED.........

    I'd be astonished if it didn't. W8 and Vista were both bad news for our purposes but W7 has always been pretty solid.
  5. star shape issue

    This is the anti-blooming gate out of adjustment. This can be adjusted by the factory (or end user under direction from SX) - adjust too far the other way and a black 'bite' will be taken out of the stars.
  6. Julian Shaw's sombrero - with a surprise!

    Quite a remarkable image for such an optical train and all from 3 minute exposures too. I like it!
  7. An altazimuth mount is easier to use because it works in a very intuitive manner when searching for objects but an equatorial mount makes it easier to keep an object in the eyepiece view once acquired as there is only one fin adjustment to make. Turn Left at Orion is certainly suitable for both types of mount (and an excellent book anyway) but it will pay to get a feel for how your mount moves as it is not always intuitive in use! Downloading a manual for an instrument similar to yours like that suggested by John will give you some useful tips on how to use it correctly.
  8. I won't add my personal choices in here as we all have different ideas based on personal experiences and I don't want to cloud the issues by piling more options on you but I would echo what Olly says about DSS and his software suggestion ain't a bad one! However, something to try with DSS is to separate the alignment phase from the stacking phase as this will give you a greater amount of control over the whole process while you consider what software route you would like to take in the future. Whatever route you do take, make sure that there are many users using the software so that you can dip into a large knowledge pool.
  9. I'd be tempted to simplify this a little by not concerning yourself with a Dark for the Flats - I tend to only consider a Dark for the Flats if they are long (say 15 seconds or more) - at 1/4000 sec I really wouldn't bother. However, you should Bias subtract your Flats.
  10. I haven't researched how it works but I have also 'heard' a meteor and thankfully had a reliable witness with me!
  11. If you had been using TheSky to control your mount, it would have automatically set the rate for you but you can do this manually:- Have a look in the subdirectory C:\Documents and Settings\All Users\Application Data\SiTech\SiTechExe on your PC and run the script SolarRate.vbs to run at solar tracking rate. You'll need to run SiderealRate.vbs to return to Sidereal rate.
  12. I'd be discounting those. I am amazed at how frequently I see meteors on non-meteor-shower nights and I never cease to marvel at them.
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