Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  Bode's Galaxy  ·  Cigar Galaxy  ·  M 81  ·  M 82  ·  NGC 3031  ·  NGC 3034
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M81 and M82 - HaLRGB, Lee
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M81 and M82 - HaLRGB

Getting plate-solving status, please wait...
M81 and M82 - HaLRGB, Lee
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M81 and M82 - HaLRGB

Equipment

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Acquisition details

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Description

After unexpected clear weather, an initial night of capture turned into 4 nights (18th, 19th, 21st and 23rd April 2020) and ~ 11 hours.

This was:

L - 56 x 300s

R, G, B - 18 x 300s (each)

Ha - 12 x 600s

Comments

Revisions

  • M81 and M82 - HaLRGB, Lee
    Original
  • M81 and M82 - HaLRGB, Lee
    B
  • M81 and M82 - HaLRGB, Lee
    D
  • Final
    M81 and M82 - HaLRGB, Lee
    F

B

Description: Changed the drop to centre and balance targets.

Uploaded: ...

D

Description: Reprocessed. Ha into (masked) Red channel in linear state.

Uploaded: ...

F

Description: Remove green/grey cast in core area.

Uploaded: ...

Sky plot

Sky plot

Histogram

M81 and M82 - HaLRGB, Lee