ngc 7331, with ifn and dwarf galaxies (Wim van Berlo)

Celestial hemisphere: Northern · Constellation: Pegasus (Peg) · Contains: NGC 7318 · NGC 7319 · NGC 7320 · NGC 7331 · NGC 7335 · NGC 7337 · NGC 7343

ngc 7331, with ifn and dwarf galaxies, Wim van Berlo

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ngc 7331, with ifn and dwarf galaxies

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ngc 7331, with ifn and dwarf galaxies

ngc 7331 and surroundings, including ifn and dwarf satellite galaxies.
Total integration time 19 hours.
I combined the luminance data (8 hrs) in creative ways. First I selected the best subs (lowest fwhm and eccentricity) to create a star master. I then combined all L subs (165) to create the main image with galaxies and ifn. I removed the stars from the latter and combined it with the stars from the former. Finally LRGB combination with the RGB data. Ha was added to the RGB data prior to LRGB combination, using the continuum subtraction technique.
Careful processing allowed me to reveal three out of four dwarf galaxies (ngc 7331A, ngc 7331B, and ngc 7331C) as well as a candidate tidal stream of Magnitude 27, and ifn, which is very weak in this area.

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B

Description: annotated version

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"Nordish by nature"
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Status	Basic success
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Astrometry.net job	6346889
PixInsight job	n/a
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ngc 7331, with ifn and dwarf galaxies

ngc 7331, with ifn and dwarf galaxies

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ngc 7331, with ifn and dwarf galaxies

ngc 7331, with ifn and dwarf galaxies

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