A colourful Lion hunting in Cepheus (Frank Rogin)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: B369 · HD210855 · HD210886 · HD210922 · HD211070 · HD211430 · HD211564 · HD211643 · HD211774 · HD211820 · HD211853 · HD211982 · HD212043 · HD212106 · HD212183 · HD212312 · HD212455 · HD212533 · HD212809 · HD235749 · HD235765 · HD235775 · HD235793 · HD235807 · HD235809 · HD235810 · HD239919 · HD239928 · HD239929 · HD239933 · And 9 more.

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A colourful Lion hunting in Cepheus

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A colourful Lion hunting in Cepheus

I had to wait two years to finally add sulfur frames to the HOO data from 2021. The weather was really great here in Berlin in September and October. So I was able to collect almost the same amount of SII frames with my "new" Esprit 100ED. In terms of light gathering capacity, it's even more, as I work with F/4.13 on the Esprit instead of F/4.93 on the TSO Photoline. The result is a very colorful lion hunting in Cepheus! The image is a mixture of 65% SHO and 35% HOO. Apart from Rho Ophiuchi, I know of no other nebula complex in the northern hemisphere that produces such great colors. Of course, I used my latest workflow in post-processing with PixInsight and its amazing plugins.

I hope you like the result.

CS
Frank

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Final
C

C

Description: Emphasized the hydrogen nebula parts.

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Status	Advanced success
Started	...
Astrometry.net job	8745141
PixInsight job	Q05FI6KZTHRBLUGGKO5KGUVYX7JO07HD
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	22h18m14s.12
RA (top/left)	22h26m16s.70
RA (top/right)	22h10m41s.68
RA (bottom/right)	22h10m37s.44
RA (bottom/left)	22h25m20s.43

Dec (center)	+55°55′21″.9
Dec (top/left)	+56°56′43″.3
Dec (top/right)	+57°01′03″.5
Dec (bottom/right)	+54°52′17″.2
Dec (bottom/left)	+54°48′15″.8

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A colourful Lion hunting in Cepheus

A colourful Lion hunting in Cepheus

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