Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  M 101  ·  NGC 5447  ·  NGC 5449  ·  NGC 5450  ·  NGC 5451  ·  NGC 5453  ·  NGC 5455  ·  NGC 5457  ·  NGC 5461  ·  NGC 5462  ·  NGC 5471  ·  Pinwheel galaxy
M 101, ErklueAstro
Powered byPixInsight

M 101

M 101, ErklueAstro
Powered byPixInsight

M 101

Equipment

Loading...

Acquisition details

Loading...

Description

M 101 needs a lot of special care as it is a relatively faint object (due to the low magnitude/area). Also I wanted to prevent to amplify the faint areas too much as it would have looked somehow unnatural. So I decided to stretch the histogram with care.

Comments

Revisions

  • M 101, ErklueAstro
    Original
  • M 101, ErklueAstro
    D
  • M 101, ErklueAstro
    E
  • M 101, ErklueAstro
    G
  • Final
    M 101, ErklueAstro
    H

E

Description: Added 24x300s light frames. Unfortunately, the covered area did not coincide with the previous version of this image.

Uploaded: ...

G

Description: - Color balance corrected
- increased contrast on small scales (LHE in PixInsight)
- Larger crop region chosen and rotated such that the annoying black area is covered by the watermark

Uploaded: ...

H

Description: re-processed ...

Uploaded: ...

Sky plot

Sky plot

Histogram

M 101, ErklueAstro