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Pompey Monkey

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About Pompey Monkey

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    Proto Star
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  • Interests
    Astronomy, cycling, science.
  • Location
    Hampshire, UK

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  1. After Olly told me that he usually only takes luminance flats, I tried that too. Works a treat for me
  2. Welcome to SGL!
  3. Doesn't look to shabby. I'd ditch the barlow if I were you: It just adds an extra complication to the mix and you'd be surprised at how good PHD is at determining the centroid of the guide star, even at pixel scales much bigger than yours.
  4. Gonna look at the PDF, but have bought the book from Amazon too. <smug>
  5. South Downs you say?
  6. Get your request in to the council to block any direct illumination of your property before it happens - it is much easier (and cheaper) for them to include this kind of request at the planning stage. Use this leaflet as ammunition if necessary.
  7. You mention both PI and DSS in your post: How do you calibrate the subs? What is the exact method that you used to calibrate your subs? How does a single calibrated sub look?
  8. Hmmm - sounds like a challenge to me! OTOH, maybe I'll wait until I retire to La Palma
  9. Which surely make this Sirius!
  10. " You may also see a calibration failure if you're using a star too close to the celestial pole. In those locations, fixed-length movements in right ascension often move the star only a very small distance. In that case, move to a star location closer to the equator, ideally somewhere in the range of -30 to +30 degrees declination, and re-run the calibration. " From here: PHD2 Manual: Calibration page Couple that with some error from backlash, and all kinds of strange might happen
  11. The log says that the calibration was done at 80 degrees declination! You need to do it within 30 degrees of the celestial equator. Calibration that near to the celestial pole is almost certain to end in failure
  12. Hi JOC, Don't be put off - you can do a lot with a tracking Dob. Take a look at his thread:
  13. 15 m of passive USB cable will never work reliably, multiple connections or not. Have you tried an active repeater? I can't comment on the repeater as I have no experience of it.
  14. I don't care that some people think the KAF-8300 is a "noisy" chip. I have a second hand SBIG STF 8300m as my first CCD, and it is leaps and bounds ahead of a DSLR in terms of noise and dynamic range. Stick an Ha filter on it and you'll soon be having a smile on your face! Happy New Year!
  15. That is beautiful capture of an area of sky that I know, from recent experience, to have a frustratingly low signal. Really makes me want to live in a dark-sky site.