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wxsatuser

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About wxsatuser

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    Blue Straggler
  • Birthday 05/04/1955

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  • Gender
    Male
  • Interests
    Hamradio
    Weather satellites
    Gscale trains
  • Location
    West Sussex
  1. Slight mishap, advice needed....

    Just a thought here but if I'm reading you right, " home position pointing at Polaris ". Can you clarify what you said here. The home position does'nt point to Polaris it's just weights down scope up. Have you checked that home is home with a spirit level as to the EQMOD docs?
  2. Slight mishap, advice needed....

    When you had your mishap did you turn the mount off without parking? If you did have you resynched the encoders?
  3. Slight mishap, advice needed....

    I would clear the old synch data in EQMOD and start again by synching on several objects, if you have'nt already done so.
  4. Report of purple light?

    I would be very surprised as far south as Marlow, need to be a very strong magnetic storm. The only other thing I have seen regards purple light is the lights used in large green houses.
  5. Report of purple light?

    Most likely light reflected off the ground into the clouds.
  6. You will need a Pentax t-ring to T2 and possibly a M43 to T2 for the top of the eyepiece.
  7. Side by side is how I did it. Altair Astro side by side dove tail with 60mm guidescope.
  8. DSLR vs CCD/CMOS

    That's par for the course, had many nights like that. Main thing is to get everything off pat so you can image in short order.
  9. DSLR vs CCD/CMOS

    When you changing Olly?
  10. Tiangong 1 reentry imaging?

    It's down over the Pacific.
  11. DSLR vs CCD/CMOS

    I mulled over the cmos v ccd and the ccd won, in fact it won twice as I have two Atik 383Ls. CMOS would have to have a serious advantage and then it might be worth changing.
  12. It depends, autoguiding is really useful for long exposures but you may find you can do reasonably well with short exposures. One to two minutes with a 6D and fast glass should make a good impression. You can start without guiding and get your feet wet and then if the bug bits add guiding later. If it was me I would use the 70-200mm wide open. You will be surprised at how big many DSO's are and many will fit on focal lengths from 70 to 200mm.
  13. This is my setup albeit with a CCD rather than a DSLR. Main lens is a Samyang 135mm f/2 used wide open, mount is an HEQ5 Pro with belt mod and Lacerta stand alone guider. This is all good for 900second plus subs with an Atik 383L mono CCD.
  14. The 70-200mm L IS II is an excellent lens for widefield, you should be able to use it wide open. Paired with the 6D will make a very nice widefield setup.
  15. Flat Earth one line debunks

    There is a very simple experiment, anyone with a camera can prove the Sun is not 32miles in diameter and at a height of 3000miles. Take a photo just after sunrise and one as it crosses the meridian, you should see in both photos that the Sun is exactly the same size. There is a tiny difference but if the Sun was the size and distance according to flat earthers it would have an apparent size difference that is approximately equal to the ratio between the sines of the two angles that you took the photos at. You can do exactly the same experiment for the Moon. Warning If you do attempt to photograph the Sun please take care and never look at the Sun direct or through the camera or telescope/lens and use a proper solar filter.
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