Celestial hemisphere:  Northern  ·  Constellation: Cepheus (Cep)
Valentine's Rose, Wei Li
Valentine's Rose
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Valentine's Rose

Valentine's Rose, Wei Li
Valentine's Rose
Powered byPixInsight

Valentine's Rose

Equipment

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Acquisition details

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Description

Sh2-174 is an emission nebula. It is also a dark planet nebula. It sits very close to the Polaris and around 930 light years away.  I have planned to shoot only ha, o3 and RGB, then process it as a narrow band image. During the shoot session, I notice there are quite a bit of dust around the nebula, which will makes it more mysterious. 7 hours of luminance are collected during the new moon period in September. After couple of rounds post-processing attempts over a week, here is the one I end with. 


Subs:
ha: 20x1800s
o3: 23x1800s
L: 42x600s
RGB(2x2):15x300s each

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