LBN 406 and neighbours in Draco (Göran Nilsson)

Celestial hemisphere: Northern · Constellation: Draco (Dra) · Contains: HD150077 · HD150578 · HD150708 · HD151522 · HD152360 · HD153166 · HD153205 · HD153648 · HD154391 · LBN 406 · LBN 413 · LBN 415 · NGC 6223 · NGC 6258

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LBN 406 and neighbours in Draco

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LBN 406 and neighbours in Draco

Rated by Lynd as "barely detectable" (the faintest on his 6-grade scale), I though this would be a good challenge for my dual RASA8 rig on Monday night when I had the first clear night in a long time.

SQM=21.1 so not very dark for my Bortle 2-3 site and seeing was not the best but at FL 400mm that is not so critical.

This is indeed a very faint nebula as are its companions seen in this image. LDN406 is the bottom one. There are not many images of these structures on Astrobin and I think this one reveals more than most that a stellar wind appears to blow through the nebulae causing quite some turbulence.

Processed in PI and PS. This time I used the new Star Xterminator filter in PS from RC-Astro to give the nebulosity an extra stretch before I added back the stars to my liking.

Original
B
Final
C

B

Description: Total reprocessing

Uploaded: ...

C

Description: Rotated and reprocessed again

Uploaded: ...

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Status	Advanced success
Started	...
Astrometry.net job	7616227
PixInsight job	79PMU69X9IBKMV9YS42BW2PQC869VRAW
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	16h48m38s.87
RA (top/left)	16h35m37s.69
RA (top/right)	17h02m26s.75
RA (bottom/right)	17h02m42s.68
RA (bottom/left)	16h33m49s.73

Dec (center)	+60°40′57″.6
Dec (top/left)	+59°22′28″.1
Dec (top/right)	+59°30′17″.2
Dec (bottom/right)	+61°54′20″.3
Dec (bottom/left)	+61°45′57″.9

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LBN 406 and neighbours in Draco

LBN 406 and neighbours in Draco

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LBN 406 and neighbours in Draco

LBN 406 and neighbours in Draco

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