Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  Bode's Galaxy  ·  Cigar Galaxy  ·  M 81  ·  M 82  ·  NGC 3031  ·  NGC 3034
2nd try on M81 and M 82, Wei Li
2nd try on M81 and M 82
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2nd try on M81 and M 82

2nd try on M81 and M 82, Wei Li
2nd try on M81 and M 82
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2nd try on M81 and M 82

Equipment

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Acquisition details

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Description

Ever since I moved my gear to a remote site,  LRGB targets become my priority.  Two years ago I gave M81 and M82 the first try. It was shot on same location and with same gear under bortle 2 sky, but I could only collect data for two nights giving no permanent set up on site. My poor posting processing skill didn't help much.  The result was not very good.  This time the telescope sits on a permanent pier in WTO observatory,  I could shoot it as much longer as possible. It turned out much better. Catching the detail of red jet stream of M82 is not easy, I think it requires a larger telescope. 


Subs:
Ha: 24x1800s
L:  60x600s
R/G/B(bin2): 24x300s each

Comments

Revisions

  • 2nd try on M81 and M 82, Wei Li
    Original
  • Final
    2nd try on M81 and M 82, Wei Li
    B

Sky plot

Sky plot

Histogram

2nd try on M81 and M 82, Wei Li