Hemisphere:  Northern  ·  Constellation: Coma Berenices (Com)  ·  Contains:  IC 3946  ·  IC 3949  ·  IC 4040  ·  IC 4051  ·  IC3943  ·  IC3946  ·  IC3947  ·  IC3949  ·  IC3955  ·  IC3957  ·  IC3959  ·  IC3960  ·  IC3963  ·  IC3968  ·  IC3973  ·  IC3976  ·  IC3998  ·  IC4011  ·  IC4012  ·  IC4021  ·  IC4026  ·  IC4030  ·  IC4033  ·  IC4040  ·  IC4041  ·  IC4042  ·  IC4044  ·  IC4045  ·  IC4051  ·  IC839  ·  And 50 more.
Getting plate-solving status, please wait...
Abell 1656, 


            Frederick Steiling
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Getting plate-solving status, please wait...
Abell 1656, 


            Frederick Steiling
Powered byPixInsight

Technical card

Imaging telescopes or lenses: Orion 8" f/3.9 Newtonian Astrograph

Imaging cameras: Olympus E-P5

Mounts: CGEM

Guiding telescopes or lenses: Orion ST80

Guiding cameras: Orion SSAG

Software: PHD2 Guiding  ·  PixInsight 1.8

Accessory: Baader MPCC Mark III

Dates:April 21, 2015

Frames: 36x900" (9h)

Integration: 9h

Avg. Moon age: 2.99 days

Avg. Moon phase: 9.76%

Astrometry.net job: 770983

RA center: 12h 59' 51"

DEC center: +28° 0' 26"

Pixel scale: 1.581 arcsec/pixel

Orientation: -0.281 degrees

Field radius: 0.593 degrees

Resolution: 2179x1595

Locations: White Memorial Wildlife Area, Whiteside, MO, United States

Data source: Traveller


This image tells so many stories that it leaves me nearly speechless. There are roughly 1,000 galaxies identified in the Coma Cluster, a great handful of which I've been fortunate enough to have exposed here. At an average distance of 321 million light years from us, this is the most distant set of objects I've targeted.

While the cluster is dominated by diffuse elliptical galaxies, there are a few barred spirals in there that really add some spice to the soup. NGC4921 (13.0 magnitude), NGC4911 (12.8 magnitude), and NGC4907 (13.4 magnitude) in particular are the real surprises for me in this image, each of which show some real definition, including the bar.

The treats don't end there: I've nabbed my first Quasar as well! QSO HB89 [1256+280] is a 21.0 magnitude object that is 10.8 billion light years away.... which means the light I captured for this image was released 6 billion years before the earth was even around!

This stuff is why I image!

More info: https://fuzzy.photos/astrophotos/25-abell-1656-the-coma-cluster


Sky plot

Sky plot


Abell 1656, 


            Frederick Steiling