Supernova remnant SNR G156.2+5.7, LDN 1435 , 1436 and 1438 - 150hrs from bortle 7 backyard (Imran Badr)

Celestial hemisphere: Northern · Constellation: Auriga (Aur) · Contains: HD30723 · HD31134 · HD31166 · HD31487 · LDN 1432 · LDN 1433 · LDN 1435 · LDN 1436 · LDN 1437 · LDN 1438 · LDN 1439

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Supernova remnant SNR G156.2+5.7, LDN 1435 , 1436 and 1438 - 150hrs from bortle 7 backyard

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Supernova remnant SNR G156.2+5.7, LDN 1435 , 1436 and 1438 - 150hrs from bortle 7 backyard

SNR G156.2+5.7 is a large supernova remnant in the constellation Auriga. This is large but extremely faint. When I started capturing data from my bortle 7 backyard in San Jose back on Nov, 2023, I could only find one other image on Astrobin. My first goal was to capture as much Ha as possible. I kept on capturing and stacking data over a couple of months. I only started seeing some traces of Ha after around 25 hours. After around 84 hours, I wasn't seeing more Ha so I started on capturing broadband. It was extremely challenging to capture and get a clean LRGB image due to winter weather in the bay area and sky glow. After processing around eighteen times

, I am finally ok with this image.

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Description: Reprocessed.

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Description: Some curves

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Status	Advanced success
Started	...
Astrometry.net job	9034058
PixInsight job	PXJURCC71XELRI8BOFDD2YOH40Y6K3IE
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	04h55m49s.56
RA (top/left)	04h56m02s.16
RA (top/right)	04h48m07s.73
RA (bottom/right)	04h55m36s.70
RA (bottom/left)	05h03m37s.10

Dec (center)	+51°41′40″.6
Dec (top/left)	+52°56′03″.1
Dec (top/right)	+51°21′53″.3
Dec (bottom/right)	+50°27′15″.0
Dec (bottom/left)	+51°59′29″.1

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Supernova remnant SNR G156.2+5.7, LDN 1435 , 1436 and 1438 - 150hrs from bortle 7 backyard

Supernova remnant SNR G156.2+5.7, LDN 1435 , 1436 and 1438 - 150hrs from bortle 7 backyard

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Supernova remnant SNR G156.2+5.7, LDN 1435 , 1436 and 1438 - 150hrs from bortle 7 backyard

Supernova remnant SNR G156.2+5.7, LDN 1435 , 1436 and 1438 - 150hrs from bortle 7 backyard

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