Celestial hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  IC 4263  ·  IC 4278  ·  M 51  ·  NGC 5169  ·  NGC 5194  ·  NGC 5195  ·  Whirlpool Galaxy
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M51 in (HαR)GB, Uwe Deutermann
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M51 in (HαR)GB

Getting plate-solving status, please wait...
M51 in (HαR)GB, Uwe Deutermann
Powered byPixInsight

M51 in (HαR)GB

Equipment

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Acquisition details

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Description

This is actually a side project coming out of my trials to get my mount setup corrected, a very tedious and frustrating work, but my hopes are that I finally get the mount in a shape to be able to target objects that require higher focal lengths.

I actually tried as well 2 methods of taking images of M51: my first trials were with the ASI071 MC at around 70% moon light, the results were very disappointing, the background noise was extreme, even with a use of the CLS CCD filter by Astronomik. Well, I figured that this must be caused by the moon light. The next night I switched the camera to the ASI1600MM and used since a long time ago my filter wheel for the RGB filters. The image you see is the result, and I was more than pleased to get at least something out of it, despite the massive moon light. Well, it could be not really a great image due to the moon light, hence I will go back to M51 soon without the moon being in the way (it was actually pretty close and I am still surprised that there were not many gradients in the images!). The guiding seemed to be better as well, but close to the north pole this is not necessarily the last adjustment. My dec axis might be set though, that would be great, as I am working on this now for more than half a year!

Comments

Revisions

  • M51 in (HαR)GB, Uwe Deutermann
    Original
  • M51 in (HαR)GB, Uwe Deutermann
    B
  • M51 in (HαR)GB, Uwe Deutermann
    C
  • Final
    M51 in (HαR)GB, Uwe Deutermann
    D

B

Description: Some better color balance. Question is if I like it better visually 😉!!

Uploaded: ...

C

Description: Added more RGB data, this time 300s exposures and added as well a bunch of Hα 300s ones.

Uploaded: ...

D

Description: Some minor processing additions.

Uploaded: ...

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M51 in (HαR)GB, Uwe Deutermann