M8 - The
Lagoon Nebula in Sagittarius (NGC6523)
Click the
image to see the full size picture (1.57"/pixel). |
M8 - The Lagoon Nebula
in Sagittarius, 19.06.2002 (23:02 - 23:14 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 1.30 (K3CCDTools)
3, Brightness-Contrast-Intesity balance in Corel
PhotoPaint
4, Result image was filtered by Neat Image
M8 is a red diffuse nebula surrounded by blue
reflection nebula (at the northern end). Its
distance is uncertain, the mean estimated value
is about 5200 ly. Visual brightness is 6.0 mag.
|
Click the
image to see the full size picture (1.57"/pixel). |
The same source AVI as above,
but gamma factor of value 1.70 was used in step 2
of postprocessing.
The contrast is less than in above image, but
higher gamma reveals darker parts of nebula. |
Click the
image to see the full size picture (1.57"/pixel). |
Again the same source as above,
but less histogram stretching and gamma 2.00. The
image is not as nice as the above images, but
stars are nicely round with no distortions and
double stars are clearly separated. |
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Last Update:
23.06.2002
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