Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  M 101  ·  NGC 5422  ·  NGC 5457  ·  NGC 5461  ·  NGC 5473  ·  NGC 5474  ·  NGC 5485
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M101, Nils Langner
M101
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M101

Getting plate-solving status, please wait...
M101, Nils Langner
M101
Powered byPixInsight

M101

Equipment

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Acquisition details

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Description

Taken under a reasonably dark country sky from the backyard in a tiny franconian village called „End“.

ISO 6400

No darks no flats no bias no autoguiding.

The Bresser AR-102xs/640 shows, due to its fast lens, significant blue chroma around brighter stars; however, this can easily be removed using the color replace tool in photoshop. It also shows significant field curvature; since I am not using a field flattener, I am concentrating on small objects centered in the optical axis cutting away the outer distorted areas.

Comments

Revisions

  • M101, Nils Langner
    Original
  • M101, Nils Langner
    B
  • Final
    M101, Nils Langner
    C

B

Description: Pixinsight Processing:
Automatic Background Extraction
Background Neutralization
Colour Calibration
Multiscale Linear Transform/Denoising
Stretching
Curves Transformation / Saturation
HDR

Uploaded: ...

C

Title: Reworked in SirIl

Uploaded: ...

Sky plot

Sky plot

Histogram

M101, Nils Langner