EAA of DSOs in Sagittarius and more
In the recent days, there were a number of predicted clear nights that turned out to be overcast, but finally tonight I managed to get out and had clear conditions.
It was a moonless night (new moon is tomorrow) and I wanted to image targets in Sagittarius. Sagittarius is difficult from my house. It stays low in a part of the sky (the south) that is not very good and has obstructions (in the SE and SW directions). This is the only time of the year when I manage to observe its targets. But what a collection of beautiful DSOs it holds!
I used the Geoptik platform and the L-Enhance filters for all my targets. I used 5s subframes for nebulas and 3s for globular and open clusters. I tried 12s subframes for the very challenging C57 Barnard Galaxy.
Live stacks were often poor because of bad subframes, but my stackfit.js script manage to create decent images nonetheless.
I went through a good number of targets.
Observations:
- M8 Lagoon Nebula - Sagittarius
- M20 Trifid Nebula - Sagittarius
- M21 Webb's Cross Cluster - Sagittarius
- M28 Globular Cluster - Sagittarius
- M22 Great Sagittarius Globular Cluster
- M17 Omega Nebula - Sagittarius
- M16 Eagle Nebula - Sagittarius
- M18 Black Swan Cluster - Sagittarius
- M25 Cluster - Sagittarius
- m24 Sagittarius Star Cloud
- M11 Wild Duck Cluster - Scutum
- M26 Open Cluster - Scutum
- M55 Summer Rose Star Globular Cluster - Sagittarius
- M75 Globular Cluster - Sagittarius
- C57 Barnard Galaxy - Sagittarius - very challenging !!
- M15 Great Pegassus Globular Cluster
- C47 Globular Cluster - Delphinus
- NGC 6633 / Mel 201 Tweedledum Cluster
- Mel 210 Tweedledee Cluster
- M27 Dumbbell Nebula - Vulpecula
- NGC 6823 Nebula - Vulpecula
- M72 Globular Cluster - Aquarius
- M2 Globular Cluster - Aquarius
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| M8 Lagoon Nebula - 74x5s |
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| M20 Trifid Nebula - 80x5s |
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| M21 Webb's Cross Cluster - 21x3s |
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| M28 - 21x3s |
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| M22 Great Sagittarius Cluster - 21x3s |
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| M17 Omega Nebula - 64x5s |
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| M16 Eagle Nebula - 53x5s |
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| M18 Black Swan Cluster - 20x3s |
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| M25 - 30x3s |
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| M24 Sagittarius Star Cloud - 29x3s |
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| M11 Wild Duck Cluster - 29x3s |
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| M26 - 21x3s |
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| M55 Summer Rose Star Globular Cluster - 28x3s |
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| M75 22x3s |
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| C57 Barnard Galaxy - 18x12s |
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| M15 Pegasus Cluster - 18x3s |
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| C47 35x3s |
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| NGC 6633 / Mel 201 Tweedledum Cluster - 23x3s |
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| Mel 210 Tweedledee Cluster - 22x3s |
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| M27 Dumbbell Nebula - 36x5s |
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| NGC 6823 - 48x5s |
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| M72 - 24x3s |
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| M2 - 38x3s |