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About spillage

  • Rank
    Sub Dwarf

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  • Location
    Taunton Somerset
  1. ASI 1600mm cool Pro

    I would suggest unity and have a play around with exposure times. I am always amazed at how short exposures say 60sec can really bring out details that my dslr could never match at 5 minutes. Its a joy to just quickly set up and have something reasonable to look at in a couple of hours. There are some mathematical equations out there to work out what setting are best for you but it hurts just looking at them.
  2. ASI 1600mm cool Pro

    Yes this is correct but due to the files sizes (80 flats are about 3gb) I keep to unity. So your looking about 10gb per gain setting in calibration files. If you decided that you want to use several different gain settings then you soon rack up the drive space. Last post had a typo. I meant "frames to match not make".
  3. ASI 1600mm cool Pro

    As far I was aware you need your calibration frames to make your gain settings. I do however only do one set of light flats and use these for all my filters, and am moving away from using darks.
  4. ASI 1600mm cool Pro

    I have read way too much on this topic. My head still hurts. There is a wealth of knowledge over at cloudynights.com and Jon Rista is a wealth of information. I think now I could be wrong but low gain longer exposures and high gain shorter exposures. I am sure it depends your conditions. I keep looking for a dummies guide...maybe one day. So far I have left it at unity as this keeps the number of calibrations files down.
  5. Tuning my AZ_EQ 6

    I could be wrong but I would say unless you are on a fixed pier you may be wasting your money getting it tuned. There is a guide here for stripping down the mount but I am not sure if hypertuning on this will be the same as the neq6? Maybe adjustment on the worm gears may help with any backlash. How good it your PA?
  6. Platesolving in APT

    @stash_old my link above is for the Burnham northern tour and the 100 best astrophotography objects. APT will run eqmod and there is no need for cdc. I just use APT and PHD2. I would say I may fire up cdc or stellerium just to see what targets I can add to my ToDo list in APT. I think by using APT rather than cdc you will not have to star align your mount. I am sure when I used cdc I had to spend a while slewing to several objects, getting them central in the image and then syncing . With APT this is not needed. I guess as the software we are discussing all free then you have nothing to lose by trying them. I remember using APT for months without using the platesovle part as it looked to technical, but now I am kicking myself for not using it sooner.
  7. Platesolving in APT

    I find it useful and cannot remember the last time I fired up cdc. The standard objects list is good enough to start with.
  8. Platesolving in APT

    Here is the link to some custom targets. I find that most are fine but sometimes come across the odd one that is incorrect and just edit these as I find them.
  9. Platesolving in APT

    Then as @Pompey Monkey mentioned, set up and from home position take a single shoot, click "scope position" and solve. Sync the results then either choose target from list or load up a previous image. Have you also installed any custom targets?
  10. Platesolving in APT

    I have started to keep one copy a light image from my targets in a separate folder. I can just start everything up and load up one of these images, solve it, add solved results and then goto++. I guess it depends if you have to strip down your gear every session.
  11. guiding woes

    Just a quick update. I think @kens hit the nail on the head. I fired it all up and straight away phd drift align seemed to be more reasonable. I also ran calibration as I had forgot that I used my other st80 on my new scope and all seems okay. I am sure that I need to spend a bit more time on the worm gears but for now on m51 I am about .75. Not the best but I can live with it for now. I guess when you leave your kit set up for ages you can forget the most basic things. Thanks for all your help.
  12. Secondhand telescopes

    My last two scope (130pds and quattro 8) were both second hand. Strangely both were only a few months old but much cheaper than a brand new one. The only items I have purchased brand new were my asi camera and baader cc (couldn’t find one sh).
  13. strange coma

    Are you sure that you are not too far away from the sensor?
  14. Is it dirt/dust or something else?

    Have a look here. Astrophotography Tool is a free program thay you might find useful. I have used it for over a year now and it has done everything I need.
  15. Camera orientation

    I leave my 1600 attached in a wooden framed cover that I remove when imaging. I always use platesolving to put me back to a previous target. Only the orientation of the guide scope may effect guiding, having the imaging camera as Ollie has describe make things easier to rectify any issue. This has also helped me as I move some gear around the other day and have guiding issue..forgot I have move my guide scope so can check this when I get home.