Celestial hemisphere:  Northern  ·  Constellation: Andromeda (And)  ·  Contains:  HD14622  ·  HD14633  ·  HD14771  ·  NGC 891  ·  NGC 898  ·  NGC 906  ·  NGC 909  ·  NGC 910  ·  NGC 911  ·  NGC 912  ·  NGC 913  ·  NGC 914  ·  NGC 923  ·  NGC 937
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NGC891 and friends, gallikepler
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NGC891 and friends

Getting plate-solving status, please wait...
NGC891 and friends, gallikepler
Powered byPixInsight

NGC891 and friends

Equipment

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Acquisition details

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Description

NGC 891 

The surrounding field has many other spiral and lenticular galaxies

About 14 hour exposure
Unguided dithered frames
Bortle 7-8

Processed in Pixinsight
Extracted L, SXT, starless processed by GHS stretch, NXT
Extracted L stars, stretched using HT to avoid blowing out the very bright blue stars top left
Curves, recombined using PixelMath

RGB, stars separated using SXT
Starless RGB, NXT, SCNR, stretched using GHS, ArcsinhStretch
Stars stretched by HT
Recombined

LRGBC, curves

Comments

Sky plot

Sky plot

Histogram

NGC891 and friends, gallikepler