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About Owmuchonomy

  • Rank
    R Class
  • Birthday 02/09/1959

Profile Information

  • Gender
  • Interests
    Rejuvenated childhood interest in Astronomy. Photography, cycling, classic rock.
  • Location
    Harrogate N. Yorks
  1. Sneaky Day off + Sol =

    Aaah, I spotted that lot creeping around the corner yesterday in Ha. I will get the WL out tomorrow and have a gander. Thanks for posting.
  2. Dusting off the Lunt

    Hurrah! The first Ha observing session of 2018 and I’m in my shorts. Some very nice proms on the Western limb. When the seeing plays ball there are 7 proms one of which appears detached. There is also some plage activity in the NW quadrant. Looking forward to the season. I will go and seek out my ASI174 for future days.
  3. Hello from Yorkshire

    Hi Jas welcome to the forum from Chris near Ripon.
  4. Prom, yes just the one, 16-4-18

    Nice one Charl. Clear skies forecast here for a few days from Wednesday.
  5. M106

    Nice detail and spiral arms but has a purple tinge and a gradient right to left. Have you tried the plug-in 'Gradient Exterminator'? Works a treat.
  6. obsy,to heat/dehumidify or not

    As described in the above two posts there is no substitute for a well ventilated set up. I have never had a damp issue in my obsy thanks to the 30mm gap between the roll off roof and the sidewalls and the 150mm between the concrete base and the floor. It makes me cringe when I see folks dropping the floor of their shed arrangement directly onto the cement base. Cement takes decades to fully 'dry' and so is a constant source of moisture unless a decent air gap is maintained.
  7. Hi Pete it was 39 x 120 secs exposures.
  8. I have had a go at a couple. I found it fairly easy compared to DSO imaging. As Carole and Dave point out, DSS can make it easy, although I see Carole had a problem with it. Colour is the way to go. There are options in the software which let you decide to stack as normal or stack on the comet. I found by far the best option was to stack a normal. Comets can be 'relatively' bright so shorter exposures are OK for some and so I would forget guiding and try without. Here is Catalina in 2015 in Virgo taken on my 60D via an Altair Astro 102 triplet at f/7. There is a very small stacking artefact in the comet core but I can live with that. Taken on my HEQ5 Pro (unguided).
  9. camera choice

    As said above its not the best scope specification to be considering astrophotography unless you wish to concentrate on lunar photography in which case look for the DSLR that has the best video capability these days both in terms of frame rate and true video crop mode. I am out of touch with up to date Canons but the 60Da mentioned above has the required modes.
  10. Sun Ha A few proms dancing on the SE limb

    The only thing dancing here is the rain on the road!
  11. Glare in my first moon shots

    Do you get the glare problem if you image without the Barlow?
  12. Zwo 224 or 290MC?

    The 224 is a better match to your 9.25" SCT if you use a 2x barlow or powermate. You could use the 290 with your scope but to optimise it you would need a 1.5x barlow, not something easily available. I have used the 290MC native with my 9.25" and it delivers stunning lunar images using an IR pass filter. From memory the near infra red sensitivity of the 290 is the best of all the ZWO cameras. Unfortunately, the planets are poorly placed for imaging for a few years so consider carefully your decision to go that route. I will be getting much more use out of my ZWO ASI 174 mono over the next few years on the sun and Moon. The pixel scales quoted in the post above apply to DSO imaging. For planetary, a good rule of thumb is an f/ of 4 to 5x your pixel size hence my advice.
  13. Solar Imaging Cam

    Lucky me, I never had a sniff of NR with my 174 but the 120 did suffer. 400fps is dreamland for me unless I do a big hardware upgrade. I use the 174 plus 2.5x barlow in either the Lunt 60 or ED80 and it's very forgiving. I do use the same tilter as above though when using the SA100.
  14. How to make my Jupiter pictures better?

    You could get an ADC but to be honest in the UK, gas giant capture is not good for the next 5 years. So you have probably done quite well.
  15. Solar Imaging Cam

    I have owned both the ZWO 120 and the 174 (still use that one). The 174 does not suffer Newton rings and I run it at about 70 fps over USB 2 when doing mosaics. The chip is just big enough for a full disk in some scopes but will run slower obviously. I can’t comment on USB 3 performance. I have also used a ZWO 290 but chip and pixel size is a bit small for solar work at f/8. Example images in my link in the signature.