Celestial hemisphere:  Northern  ·  Constellation: Andromeda (And)  ·  Contains:  NGC 891  ·  NGC 898  ·  NGC 906  ·  NGC 909  ·  NGC 910  ·  NGC 911  ·  NGC 912  ·  NGC 913  ·  NGC 914
NGC891 (Outer Limits Galaxy), Tom L
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NGC891 (Outer Limits Galaxy)

NGC891 (Outer Limits Galaxy), Tom L
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NGC891 (Outer Limits Galaxy)

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Description

Just under 6 hours of data on NGC891; gradient removed & cropped with AstroPixelProcessor, de-noised with Topaz; used Photoshop to reduce a visible stacking artifact. Very noisy; a light was on close by for the first several hours of capture.

Revision B: 2nd and 3rd sessions added 6+ hours of data for a total of 12¾ hours. This helped reduce noise and artifacts and brought out some faint and distant galaxies around the frame. I also reprocessed the full data set with an updated orientation and new, slightly wider and square crop.

Comments

Revisions

  • NGC891 (Outer Limits Galaxy), Tom L
    Original
  • Final
    NGC891 (Outer Limits Galaxy), Tom L
    B

B

Description: Revised image adds data (additional 6+ hours of exposure) and reprocessed, rotated to match sky charts, and a new wider crop.

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NGC891 (Outer Limits Galaxy), Tom L