LDN 1164 - HaLRGB (Number_5)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: 21 Cep · 21 zet Cep · 22 Cep · 22 lam Cep · B173 · B174 · HD210013 · HD210220 · HD210885 · HD210905 · HD239852 · HD239874 · HD239881 · HD239895 · HD239904 · HD239906 · HD239908 · HD239912 · LBN 474 · LBN 479 · LBN 485 · LBN 486 · LBN 489 · LBN 490 · LDN 1159 · LDN 1164 · LDN 1165 · LDN 1166 · LDN 1169 · Sh2-134 · And 2 more.

LDN 1164 - HaLRGB

For my first attempt at adding Ha to an LRGB image I searched around the dark nebula regions for interesting Ha structure. I settled on the LDN1164 area and tried to frame it in a way that maximized the Ha input, while maintaining the dark nebula in an interesting context. The processing was more challenging than I expected, and had PI quit on me at the very end of one processing session when I thought I was done. Like rewriting a paper you thought you had nailed, I had to start over.

The contrast between orange supergiant Zeta Cephei on the left, and the variable star Delta Cephei on the right is spectacular to me.

Hope you enjoy, and if you have any feedback, I would love to hear.

Takahashi Refractors

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Status	Advanced success
Started	...
PixInsight job	N2OM24JFPVD4MMEOOTS89MS8BVYLYG3H
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	22h11m17s.15
RA (top/left)	22h17m19s.77
RA (top/right)	22h17m45s.58
RA (bottom/right)	22h04m48s.26
RA (bottom/left)	22h05m14s.55

Dec (center)	+58°49′29″.6
Dec (top/left)	+57°35′54″.10
Dec (top/right)	+60°01′54″.5
Dec (bottom/right)	+60°01′56″.0
Dec (bottom/left)	+57°35′51″.9

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LDN 1164 - HaLRGB

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