- Exposure: Clear
- Mosaic of 6 frames
- All exposures binned 1x1
- Each frame is 10x300s
- Telescope: Stellarvue SV80S @ f/4.77
- Mount: MI-250 GoTo
- Camera: SBIG ST-2000XM CCD, SBIG CFW-8
- Location: My backyard in Goleta, CA
- Date/Time:
- January 11/12, 2005, 23:28-05:57 PST
- Processing: Taken in CCDSoft v5 using
CCDCommander 100% UNATTENDED while I slept! Reduced in
CCDSoft. Aligned sub-frames with RegiStar. Combined
sub-exposures
with Ray Gralak's Sigma Clip. Aligned mosaic with RegiStar.
DDP with
custom
software. Mosaic assembled, curves, and levels in Photoshop.
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- Name: Most of The M81 Galaxy Group,
M81, M82, NGC3077, NGC2976, IC2574, plus many more.
- Type: Galaxy Group
- Constellation: Ursa Major
- Distance: about 12 million light-years
- This galaxy group is the nearest group of
galaxies to our own. Our group of galaxies includes the Andromeda
galaxy, among others. M81, the largest galaxy in this group, is
wrecking havoc with the other galaxies in this region. M82, the
second largest is undergoing massive new star birth due to interactions
with M81. In the far left side of the image, IC2574 has been
stretched out into a strange shape.
- More information on the M81 Group can be
found here.
- A very cool radio image can be seen here.
This shows some of the tidal interactions between the galaxies.
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