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LBN 7 + LDN 43 in Ophiuchus

Astrophotography from Ursa Major Observatory @ ROSA

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diffuse nebula
50’
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Oph
2017-07-23 + 24
Astro-Physics 175mm f/8 Starfire EDF with field flattener (f=1452mm)
10micron GM3000 HPS
L 10x6 min, RGB 4x6 min each
2h 12min
Camera:
Moravian G4-16000 with Baader filters
Calima ( a hot, sand laden wind that blows in from the Northern Sahara) worsened the transparency in the second night. Image acquisition by CEDIC team (Bernhard Hubl, Christoph Kaltseis, Markus Blauensteiner, Michael Hanl) Image processing by Bernhard Hubl
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Dark nebula LDN 43 is embedded in LBN 7. LDN 43 is the home of two red and nebulous objects: RNO 90 and RNO 91. The existence of RNO objects is a sign of star formation within this dark cloud.