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ZiHao

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    121
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About ZiHao

  • Rank
    Star Forming

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  • Gender
    Male
  • Interests
    Stargazing, Physics, Maths, Movies
  • Location
    West Malaysia, Puchong
  1. I first did a polar alignment on PHD2 using my guiding rig and everytime after polar alignment, I wouldn't even try guiding on an EQ3 pro and instead went for the 30seconds maximum exposure sidereal rate tracking. Next time I'll try the settings on DSS to eliminate the walking noise and of course don't be lazy to take flats... Single sub exposure time is 30 seconds only and no light pollution filter was used. Gonna save up for HEQ5 and that will probably help a lot compared to my bare minium setup right now. Thanks for your help.
  2. Stacked in DSS, processed in APP and PS. 3 hours of integration time under bright skies and calibrated with 100 bias, 15 bad flats. Didn't really expect that simple equipment could yield decent (for me) image using 30 seconds exposure, quite satisified with the result. Hope you enjoy.
  3. Thanks for helping anyway! It is calibrated with 100bias and 15 flats, old flats which might be the problem here. I have 4 hours of dumbbell nebula with me now so I will try to stack them with and without flats.
  4. https://www.dropbox.com/s/zv6m8a9vvmon0xo/done.TIF?dl=0
  5. Nope, I guess I will take a new set of data some day. I am using a non-cooled DSLR, so I guess darks wouldn't help much as the temperature doesn't match? Removed 70 subs with a red tint on the corner, and it helps a bit. Now the final image is surrounded by a circular red ring. Need more data next time. Attached is the final image, darkened the image to conceal the red colour in the background.
  6. Tried my best to pull out what I have from 2.5hours of data but it still looks very bad! Stacked in APP and edited on PS. As I neutralize the background with PS using black point dropper, all the noise popped out, and further edits with the image doesn't really help. Maybe because the flats taken are not effective enough (I was reusing the flats taken last time), I will try to take new flats to remove the new bust bunnies if possible.
  7. It's New Moon! Will have 2 clear nights here according to Clear Outside and hoping to shoot two or more objects in a Bortle 8. I have M31, M27, NGC7331 in my list. I think this will work pretty well with my D5300 as I am intending to shoot around 5 hours on each of the two DSOs, 30 seconds for each exposure. What are your recommended targets?
  8. SW150/750, EQ3 pro and D5300, no light pollution filter was used.
  9. About 2 hours of data with 20 bias and flat frames. Stacked in APP and processed in PS. Photographing nebulas in a Bortle 8 area with an unmodified DSLR and heavy setup on a light mount can be really challenging...
  10. Thanks for the compliment! BTW, am I reaching the limit of the image quality for my setup for planetary imaging? As the seeing yesterday was pretty good, and the procedure of processing the planets are very similar every time as well I guess and the only way to bring out better images is higher magnification and bigger scopes, of course, and during opposition. Does stacking more frames help for planets? On Autostakkert, stacking 10% of the frames seems to be better than stacking 75%. Any advice for getting more details? Considering that the focus and collimation of the setup is decent.
  11. Attached are Jupiter and Europa, Saturn, Copernicus Crater. All taken with ASI120MC, SW150/750 and 2x Barlow.
  12. Managed to get few shots of the moon during the lunar eclipse in the occasional, brief moments of clear skies in the thick clouds. D5300, SW150/750, PS
  13. Here I have two exposures, one properly exposed for the details of the moon, another exposed for the shadow of Earth. I have tried Dylan O'Donnell's method on merging the earthshine on Photoshop and also Aurora HDR software, neither of them works. Any suggestions?
  14. Hello all, back again with some moon shots and here to seek for some feedback from all! Attached is a completed image stacked from 30 shots at ISO 640, 1/1250,processed in Registax and Photoshop and a raw image. Equipment: SW 150/750, Nikon D5300 I tried to record a 5 minutes footage of the moon in MOV format and then converted into AVI. But Registax seems to be unable to process these much of data, so I went back to stacking images instead. Does stacking frames from a video yield sharper image? I was expecting sharper results as the seeing yesterday night was good.
  15. So are we actually seeing a quasar as well?
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