M107 - The Globular
Cluster in Ophiuchus (NGC6171)
Click the
image to see the full size picture (1.57"/pixel). |
M107 - The Globular Cluster
in Ophiuchus, 19.06.2002 (22:31 - 22:43 UT)
Resolution: 3.14 arcsec/pixel
Camera: Vesta
675SC2 + 0.6FR
Telescope: 8" F6 Orion Europa Newtonian
Result focal ratio: F3.6
Exposure: 29x15s (gain 100%), AMP OFF, 16xDF, FF
Seeing: lim.magnitude for naked eye 4.2, windy,
foggy clouds, 9 days old Moon!
Temperature: 18°C1, Stacked with K3CCDTools
2, Histogram with color separation + gamma 1.70 (K3CCDTools)
3, Flatten Background in MaximDL Demo
As Fatten Background was applied to result 24-bit
bitmap, the processing artifacts (noise) are
visible.
Distance of M107 is about 21000 ly and diameter
about 60 ly. Visual brightness is 7.9 mag.
|
Click the
image to see the full size picture (1.57"/pixel). |
The same AVI source as above,
but another processing: 1, Stacked with K3CCDTools, exported
to FITS
2, Flatten Background in MaximDL Demo
3, Color balance, Histogram + gamma 0.80 (MaximDL
Demo)
4, Denoise in Neat Image
The image contains less noise, but stars are
not as nice as above.
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Last Update:
23.06.2002
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