LBN 405, HOO (Stephen Garretson)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: 74 Cyg · 75 Cyg · 76 Cyg · 77 Cyg · B155 · B158 · B159 · CP Cyg · HD204918 · HD205024 · HD205060 · HD205212 · HD205223 · HD205237 · HD205286 · HD205538 · HD205601 · HD205732 · HD205998 · HD206167 · HD206196 · HD206224 · HD206280 · HD206462 · HD206569 · HD206586 · HD206602 · HD206655 · HD206656 · HD206697 · And 38 more.

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LBN 405, HOO

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LBN 405, HOO

This is LBN 405, aka Sh2-118, a bright HII nebula in Cygnus. Ha is overwhelmingly dominant; OIII barely makes an appearance. Bracken notes in THE ASTROPHOTOGRAPHY SKY ATLAS that the designation seems to refer generally to the large area of nebulosity east of the North America Nebula. A specific object or boundary is unclear... note: I have found Bracken's book to be invaluable; it is by my side every time I am in the Beevo Dome and whenever I am planning my imaging sessions. Initial OIII data taken August 9; weather and the Moon delayed additional data collection for almost a month.

[28] 600s guided Ha subs
[31] 600s guided OIII subs
total integration: 9 hours, 50 minutes
capture:
dual Borg 55 FL f/3.9 6 element Petzval astrographs
dual ASI 2600MM Pros
dual Chroma 3nm Ha filters
dual Chroma 3nm OIII filters
dual ZWO EFWs
dual ZWO EAFs
Paramount MX+

guiding:
William Optics 130mm UniGuide scope
ASI 290M Mini guide camera

TheSkyX, SGP, PHD2
PixInsight, Mac OS Photos, Preview

from the Beevo Dome

...Stephen

The refractors!

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Status	Advanced success
Started	...
Astrometry.net job	8441268
PixInsight job	8LMPFV3KG90G2VBNKEMJV6PILWVCPTL2
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	21h41m42s.42
RA (top/left)	21h29m40s.10
RA (top/right)	21h30m36s.22
RA (bottom/right)	21h52m35s.36
RA (bottom/left)	21h53m59s.33

Dec (center)	+42°09′22″.0
Dec (top/left)	+45°19′39″.9
Dec (top/right)	+38°56′17″.10
Dec (bottom/right)	+38°54′46″.1
Dec (bottom/left)	+45°17′56″.6

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LBN 405, HOO

LBN 405, HOO

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LBN 405, HOO

LBN 405, HOO

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