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  ·  NGC 5473  ·  NGC 5477  ·  NGC 5485  ·  Pinwheel galaxy
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M101 Pinweel Galaxy, Francesco
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M101 Pinweel Galaxy

Getting plate-solving status, please wait...
M101 Pinweel Galaxy, Francesco
Powered byPixInsight

M101 Pinweel Galaxy

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Description

The new year started with a night of clear sky the 4th. The moon was at 65% and the seeing was very bad. I'm having problems with the asi 071 since I got it, a lot of noise, horizontal bands (no matter what gain, or offset or if the USB3 cable connects directly to the PC or via USB hub), and overall bad quality of the pictures and often gradients hard to remove.. I did many changes and experiments, but no luck. Any way this is the result. Cs

Edited: stacking manually (not with BPP) and with no darks and flats, improves the quality very much, no horizontal banding thanks to dithering.

Comments

Revisions

  • M101 Pinweel Galaxy, Francesco
    Original
  • M101 Pinweel Galaxy, Francesco
    B
  • M101 Pinweel Galaxy, Francesco
    D
  • M101 Pinweel Galaxy, Francesco
    E
  • M101 Pinweel Galaxy, Francesco
    G
  • M101 Pinweel Galaxy, Francesco
    H
  • M101 Pinweel Galaxy, Francesco
    I
  • Final
    M101 Pinweel Galaxy, Francesco
    J

D

Description: darker background. removed some bluish gradient.

Uploaded: ...

H

Description: Darker background.

Uploaded: ...

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M101 Pinweel Galaxy, Francesco

In these public groups

ASI 071 mcc