Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  NGC 5216  ·  NGC 5218
ARP104 - Keenan's System, Jason Guenzel
ARP104 - Keenan's System
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ARP104 - Keenan's System

ARP104 - Keenan's System, Jason Guenzel
ARP104 - Keenan's System
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ARP104 - Keenan's System

Equipment

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Acquisition details

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Description

My faint object test for the ASI1600MM-Cool is the ARP104 interacting galaxy pair. There is a faint tidal tail bridging between the two galaxies and can be seen here. This was shot with 20 second subs under a full moon!

I collected RGB also, but am having problems with my red channel integration for some reason. More to follow...

Update, I've determined that the 20s subs did not allow the RGB channels to fully separate from the read noise at unity gain. I think this is why I had color problems. I uploaded an RGB version anyway...

Rev A - Original

Rev B - Different background noise reduction... a little too far.

Rev C - Added RGB

Comments

Revisions

  • ARP104 - Keenan's System, Jason Guenzel
    Original
  • ARP104 - Keenan's System, Jason Guenzel
    B
  • Final
    ARP104 - Keenan's System, Jason Guenzel
    C

Sky plot

Sky plot

Histogram

ARP104 - Keenan's System, Jason Guenzel

In these public groups

Cloudy Nights