vkastronomy.com - Astrophotography Weblog
M15
21:33 11/9/2005 UTC
< Previous Next >This is merely a test image. I thought I'd pass autoguiding for a while and try how well would a PEC corrected tracking work for me. I taught PEC to my mount and 30s test exposures to the star I was training to looked very promising. So slewed I into M15. I did an EQ tango, and I think that was a mistake since balance tipped to the other side of the mount. I suspect that caused PEC to go off sync and some exposures had huge trailing back and forth. Still there was 50% of good frames, and result: a first DSLR image with Europa. Not so fancy but not much effort either. What was a nice surprise to me is, how sharp images all the way to the edges my Europa gives. We'll see if longer exposures reveal something not visible in this image.
NGC/IC Object List:
NGC7078 globular cluster RA:21h29m58.3 Dec:+12°10m'03" BMag: , M 15
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Camera: Canon EOS 350D (Rebel XT) | Telescope: Orion Optics Europa 200mm f6 Newtonian reflector | Mount: Orion Skyview Pro, Boxdoerfer PowerFlex MTS-3SLP drive controller | Filters: - | Guiding: - | Exposure: 8 x 20s (2m40s) f6 ISO800 | Software: IRIS, GIMP | Location: 60°31'N 26°52'E (Koivula/Kotka,FI) | Target altitude in the beginning of the exposure 39°
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Added: 14:12 12/9/2005 UTC
![[High Resolution : 800x600 20kB]](images/m15-2005.09.11-21h33m-high.jpg){kind=link}