M51 - The
Whirlpool Galaxy (in Canes Venatici)
Click the
image to see the full size picture (1.57"/pixel). |
M51 - The Whirlpool
Galaxy (combined photos from 24.05. and
25.05.)
Resolution: 2.36 arcsec/pixel
Camera: Vesta
675SC2 + 0.6FR
Telescope: 8" F6 Orion Europa Newtonian
Result focal ratio: F3.6
Exposure: 68x45s + 9x65s + 52x45s (gain 100%),
AMP OFF, DF, FF
Seeing: soft windVery famous galaxy with its
companion NGC5195. It's about 37 millions light
years distant.
Processing:
1, Images from 24.05. and 25.05. were combined in
MaximDL Demo
2, Unsharp mask applied
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 |
The same image as above, but
histogram stretching was applied.
Another galaxy - IC4278 (16 mag) is also visible
on the left side.
Move mouse pointer above the picture to see
labels. |
Click the
image to see the full size picture (1.57"/pixel). |
M51 - The Whirlpool
Galaxy, 25.05.2003 (24.05.2003 23:52 - 01:01 UT)
Resolution: 2.36 arcsec/pixel
Camera: Vesta
675SC2 + 0.6FR
Telescope: 8" F6 Orion Europa Newtonian
Result focal ratio: F3.6
Exposure: 68x45s + 9x65s (gain 100%), AMP OFF,
DF, FF
Seeing: very soft wind
Temperature: ~15°CProcessing:
1, 77 frames (68x45s + 9x65s) were captured and
summed in X2 mode in K3CCDTools
2, histogram stretching and gamma 1.20
3, resized to 2/3 of size + unsharp masking in
Corel PhotoPaint
|
Click the
image to see the full size picture (1.57"/pixel). |
M51 - The Whirlpool
Galaxy, 24.05.2003 (00:31 - 01:14 UT)
Resolution: 2.36 arcsec/pixel
Camera: Vesta
675SC2 + 0.6FR
Telescope: 8" F6 Orion Europa Newtonian
Result focal ratio: F3.6
Exposure: 52x45s (gain 100%), AMP OFF, 6xDF, FF
Seeing: very soft wind
Temperature: ~15°CAgain I can confirm that
good mount is half of good scope!
All 52 captured frames wer good for summation.
Processing:
1, 52 frames captured and summed in X2 mode in K3CCDTools
2, histogram stretching and gamma 1.20
3, resized to 2/3 of size in Corel PhotoPaint
|
Click the
image to see the full size picture (1.57"/pixel). |
The same AVI source as above,
but higher gamma (1.50) was used in processing. |
 |
The same AVI source as above,
gamma 1.20 and strong histogram stretching. |
Click the
image to see the full size picture (1.57"/pixel).
|
M51 - The Whirlpool
Galaxy, 14.06.2002 (22:34 - 23:42 UT)
Resolution: 3.14 arcsec/pixel
Camera: Vesta
675SC2 + 0.6FR
Telescope: 8" F6 Orion Europa Newtonian
Result focal ratio: F3.6
Exposure: 72x30s (gain 100%), AMP OFF, 16xDF, FF
Seeing: lim.magnitude for naked eye 4.2, windy,
foggy clouds
Temperature: 16°C1, Stacked with K3CCDTools, exported
to FITS
2, Histogram + gamma factor 0.8 (MaximDL Demo)
3, Denoised by Neat Image
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author and may not be reproduced or used without
permission of author.
Last Update:
25.05.2003
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