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About PH-R

  • Rank
    Star Forming

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  • Location
    South Wales
  1. Thanks for the replies. I have just been out and taken some flats and everything is looking good (1.51 exp. peak in centre of histogram). I discovered my error. When I was putting the tablet on top of the telescope even though it looked flush, light was still getting in. I rectified this with blackout over the top of everything. I set my tablet to the lowest dimness and needed one sheet of white paper between tablet and dew shield.
  2. Thank you. I have taken the flats with the AV setting. Are the flats above suitable?
  3. Hey all, I have been searching for information about flat frames and can't really find what I am looking for. Various sources advised measuring the ADU of the frame or pixel brightness but I can't seem to find this information in PS. I have attached two frames that I took as jpgs as practice. One is how it appears when taken and the other one has had the level changed in PS. This is a new technique I am trying using a tablet and a web page called whitedisplay.com. I tried different display brightness settings but the histogram stayed roughly the same just the exposure length changed. Are these correct or do I need to add white paper to the screen to dim further? Thxs Edit: I managed to find some info in PS, I needed to click expanded view in the histogram and select Luminosity. Mean 188, Std Dev 1.83, Median 189, Pixels 393216.
  4. PH-R


  5. Yes I would go for that now and save up for the powermate or barlow.
  6. PH-R


  7. Hey all, I just started imaging the planets again after a long break. I have just purchased some new equipment a ZWO ASI224MC and skywatcher ADC (replacement for SPC900). I have read a lot about image quality depending on the height of the planets. The image shows top row images I took in Dec 2012 SPC900 ( looks like the world did not end ) and bottom row July 2019 224MC. Would the difference I am seeing in quality be down to just position or am I not setting the new camera correctly? Thanks for any more image examples or help.
  8. Welcome, I am over the water from you in South Wales.
  9. PH-R

    July 31st

  10. Hey all, I cannot believe my luck. I was out on the 31st July practicing imaging Jupiter and Saturn with the my new ADC and ZWO Asi224MC. All of a sudden the ISS started to appear from the South West heading East. I quickly released the clutches on the mount and followed the ISS the best I could with the finder scope. Everything was set in sharp cap for the Jupiter capture, ROI was set to 320 x 240, 2x barlow plus ADC. I could not believe it out of 6500 frames I manged to find 13 frames, which I stacked. Second bit of luck, PIPP said it could not find an object, so I turned the option off and it ran without errors. The hero was AutoStakkert which sorted the frames to the front of the ser file. Composite of 3 images from my night:
  11. I am looking to replace my GPINT-PT with a GPUSB. However, they don't seem to be stocked in the UK anymore and I don't want to order from the states. Will this work instead ZWO USB to ST4 Guider Adapter https://www.firstlightoptics.com/zwo-accessories/zwo-usb-to-st4-guider-adapter.html Thanks
  12. Thank you MarsG76, I was aware of the site but wanted something from the UK if that was possible. Flo has something, which I believe is the same https://www.firstlightoptics.com/zwo-accessories/zwo-usb-to-st4-guider-adapter.html but I am not sure. Best wishes
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