Celestial hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  IC 4263  ·  M 51  ·  NGC 5194  ·  NGC 5195  ·  Whirlpool galaxy
M51, Lewie
M51
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M51

M51, Lewie
M51
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M51

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Description

M51 in near-full moon, but most of the good data came in the ~45 minutes between the moon setting and the sun rising, as expected.

Tested new collimation and ParaCorr coma corrector for the first time. Also first time using Baader Luminance filter over OSC camera to help with star bloat maybe.

I'm mighty happy with the stars in three out of the four corners, but I can still see a tiny bit of coma in the upper left. Maybe tilted?

Comments

Revisions

  • M51, Lewie
    Original
  • M51, Lewie
    B
  • Final
    M51, Lewie
    C

B

Description: Forgot to crop!

Uploaded: ...

C

Description: Deconv., PCC, Masked Stretch, Asinh Stretch, proper crop.

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M51, Lewie