Iris nebula C4/Ced187/Cr429/LBN487/NGC7023/VdB139 widefield (c) (Ram Samudrala)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: NGC 7023 · T Cep · VdB139 · VdB141

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Iris nebula C4/Ced187/Cr429/LBN487/NGC7023/VdB139 widefield (c)

Link: http://ram.org/images/space/scope/1.7.4.6/ngc7023_c_85x120s+10x15s_172.5m.jpg

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Iris nebula C4/Ced187/Cr429/LBN487/NGC7023/VdB139 widefield (c)

Link: http://ram.org/images/space/scope/1.7.4.6/ngc7023_c_85x120s+10x15s_172.5m.jpg

This is my second image with my QHY247C. It's a widefield of the Iris nebula, a reflection nebula. I experimented with combining short exposure images with longer exposure ones on this one using HDRComposition but there's the school of thought that for each object you need to find the optimal exposure length and gain and stick with it. I'm not wedded to any single approach but obviously if the goal with an OSC is to minimise the work done, then the latter approach has more merit purely from an efficiency perspective. I also wonder if the smoky background areas could benefit from more collection but my goal is to work harder on the NB images (especially with the data collection part) and use the OSC for quicker shots (especially of things not easily accessed by NB imaging).

Suburban Astrophotography

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Status	Advanced success
Started	...
Astrometry.net job	2783478
PixInsight job	2Y2Y924A58KKL155SS832QJ1932A3RXL
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	21h01m12s.92
RA (top/left)	20h48m23s.47
RA (top/right)	21h17m12s.90
RA (bottom/right)	21h15m23s.99
RA (bottom/left)	20h44m09s.60

Dec (center)	+68°12′28″.5
Dec (top/left)	+67°01′59″.0
Dec (top/right)	+67°26′29″.1
Dec (bottom/right)	+69°18′57″.6
Dec (bottom/left)	+68°52′25″.7

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Iris nebula C4/Ced187/Cr429/LBN487/NGC7023/VdB139 widefield (c)

Iris nebula C4/Ced187/Cr429/LBN487/NGC7023/VdB139 widefield (c)

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Iris nebula C4/Ced187/Cr429/LBN487/NGC7023/VdB139 widefield (c)

Iris nebula C4/Ced187/Cr429/LBN487/NGC7023/VdB139 widefield (c)

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