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About matt_baker

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    Star Forming

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  1. Yes, it really was and took about 3 hours to stack all the files then I had to stitch the final result together Thanks!
  2. Moon wasn't the highest last night but I tried doing this monster mosaic which took about 2 hours to complete. I took 500 frames per panel to save storage. Ended up being about 55GB of memory in total for all 90. Made sure there was plenty of overlap so could have ended up with less panels overall but got to be sure when you're doing something as huge as this. Imaging telescope: Celestron C14 Imaging camera: QHYCCD 5L ll M Mount: Celestron CGE Software: Photoshop, Autostakkert! 3, PixInsight 1.8
  3. How worth it would it be to get a moonlite focuser for the 130PDS vs buying a used 80mm triplet?
  4. Ohh actually only just realised after all this time you can do that aha
  5. I think there should be a filter for wanted ads
  6. Here's a 10 minute sub of the Elephant's trunk. The left side stars look pretty similar to me. Was taken with a 2 inch Duo band filter on the end of the CC instead of clip in How would I go about adding or removing space?
  7. I'm not sure what kind of issues are occuring here with the shape of my stars. I've already drilled and tapped a third thumbscrew to reduce sag and loosened the mirror clips enough to slide a credit card underneath. I use a 600D and a Baader MKIII CC with a Celestron EOS T ring. I've seen above and could it be down to the spacing being off on the MKIII? The only thing is that the stars on the left side of the image I've attached are a different shape to the right side which makes me wonder what's causing both. Any help would be appreciated This sub was 120s with a CLS-CCD clip in filter, guided in PHD Matt
  8. I'm stuck on deciding between upgrading my 130PDS to an 80mm triplet or saving a bit more to buy a Mono CMOS which would theoretically cost me £230 less for the camera if I sell my 600D and about £180 savings if I sell my 130PDS
  9. I've now taken all the frames and divided them by 2 to get the mean and safe to say, there is a spiral Can be seen here:
  10. I've blinked the calibrated and registered frames and the stars are completely fine, no rotation whatsoever, although it was slightly rotated from a separate night of imaging. Surely that would have been dealt with when they got registered. I guess I'm just not dithering enough. I have got a beefy ST102 as a guidescope and it's only 150mm out of my 130PDS at 500mm, and the scale must be messing with the settings, which makes it not move enough? Here's the rejection high and you can clearly see the spiral
  11. I've ended up trying a plethora of different rejection algorithms and sigma values, none of which have fixed the issue. I also put my bias as bias. I did notice something odd however. The noise seems to be like it's orbiting a central point, like star trails. Here's an overstretched example: Note how the streaks aren't in a constant direction like typical walking noise
  12. I have a bit of a strange issue. I've given up using darks with a DSLR since the temperature varies by 3-4 degrees throughout the night, so there's no use in darks. Instead I've just been dithering by the max setting of 5 in APT and using my superbias as a replacement for my dark. In WBPP in pixinsight, if I check the calibrate dark frames, it skews my flat and makes the image look awful but there's no walking noise. However if I uncheck it, my flat frame gets calibrated just fine but it introduces walking noise to the image. Is there something I'm doing wrong? Here's an example of the noise stretched out
  13. Okay, so I've added 3 hours more data but now I'm getting what looks like walking noise in the image and I don't understand why. I'm dithering on the max setting in APT which is 5 with PHD 2 guiding. I did notice when it did dither that my graph didn't actually seem to move when the dither command was sent on some of the frames. Maybe some of them didn't actually dither properly when it was supposed to?
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