B 84a (LDN 302) Dark Nebula in Sagittarius
Located at: RA 17 hours 57 minutes 36 seconds, Dec -17 degrees 39 minutes 57 seconds
Size: 16'; Magnitude: --; Class: 5 C
North is up
West to the right
| Telescope: |
8" f5 Newtonian reflector |
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| Camera: |
ST-8XME, self-guided, binned 1x1, temp -15c, camera control MaxIm DL 4.56 |
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| Image: |
Lumicon Red filter, 250 minutes (25 x 10 minute subs), 09/2/3/2008; seeing 3.0-3.8 FWHM per CCDStack |
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| Processing: |
CCDStack 1.3.7, Photoshop 7.0 |
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| Location: |
Rolling Roof Observatory, Thousand Oaks, CA 91360 (+34d 13m 29s -118h 52m 20s) |
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| Notes: |
This description from the on-line Edward Emerson Barnard
"A Photographic Atlas
of Selected Regions of The Milky Way":
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Round,
diam. 16´, with extension 3/4° S, BD-17°4967 (9.1 mag) in
center, perhaps some detail in it