Hemisphere:  Northern  ·  Constellation: Serpens (Ser)  ·  Contains:  PGC 54559
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HOAGS Object Ringgalaxy, 



    
        

            Riedl Rudolf
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HOAGS Object Ringgalaxy

Getting plate-solving status, please wait...
HOAGS Object Ringgalaxy, 



    
        

            Riedl Rudolf
Powered byPixInsight

HOAGS Object Ringgalaxy

Imaging Telescopes Or Lenses
Celestron C11 XLT
Imaging Cameras
Nikon D5100a
Mounts
Sky-Watcher EQ-8 pro
Filters
IDAS HE2-N3
Accessories
MGEN II Autoguider with 9x50mm finderscope · Starizona FF Reducer 0,71x
Software
Pixinsight 1.8

Acquisition details

Dates:
March 16, 2020
Frames:
27x422" (3h 9' 54") ISO1600
Integration:
3h 9' 54"
Darks:
25
Flats:
25
Bias:
25
Avg. Moon age:
22.23 days
Avg. Moon phase:
49.12%
Bortle Dark-Sky Scale:
4.00
Mean SQM:
21.40
Temperature:
-5.00

RA center: 15h17m13s.592

DEC center: +21°3453.44

Pixel scale: 0.466 arcsec/pixel

Orientation: -114.460 degrees

Field radius: 0.315 degrees

More info:Open 

Resolution: 4146x2544

Locations: Home, St. Peter/O., Steiermark, Austria

Data source: Backyard

Description

Hoags Object is a perfect Ringgalaxy. Around a older Center is a circle of young stars.

It was discovered by Hoag, therefore the name. The Diameter of the center is 6". The inner part of the ring has a diameter of 28", the outer part of 45". The brightness is 16th mag.

The Galaxy is in a distance of about 600 Mio Lj and has a slightly smaller diameter than our Milky Way but contains more stars!

I took already several pictures, but always failed the position. This time finally it works.

Data from Wikipedia

Comments

Revisions

  • HOAGS Object Ringgalaxy, 



    
        

            Riedl Rudolf
    Original
  • Final
    HOAGS Object Ringgalaxy, 



    
        

            Riedl Rudolf
    C

C

Description: A bit less green

Uploaded: ...

Sky plot

Sky plot

Histogram

HOAGS Object Ringgalaxy, 



    
        

            Riedl Rudolf

In these public groups

Rarely Imaged Small DSOs