Hemisphere:  Northern  ·  Constellation: Corona Borealis (CrB)
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Corona Galaxy Cluster, 


Corona Galaxy Cluster
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Corona Galaxy Cluster

Technical card

Imaging telescopes or lenses: Orion Skyquest xx16g Skyquest xx16g

Imaging cameras: ZWO ASI294MC PRO ASI294MC PRO

Guiding telescopes or lenses: Orion Skyquest xx16g Skyquest xx16g

Software: The GIMP Team The GIMP 2.0  ·  SharpCap 3.1

Filters: ZWO IR Cut Filter ZWO IR/UV Cut Filter

Accessory: Explore Scientific HR Coma Corrector

Dates:July 12, 2018

Frames: 300x2"

Integration: 0.2 hours

Avg. Moon age: 28.80 days

Avg. Moon phase: 0.60%

Basic astrometry details

Astrometry.net job: 2145675

RA center: 15h 21' 17"

DEC center: +30° 39' 57"

Pixel scale: 0.999 arcsec/pixel

Orientation: 311.657 degrees

Field radius: 0.316 degrees

Resolution: 1850x1327

Locations: Goldendale Dark Sky Site, Goldendale, WA, Washington, United States

Data source: Traveller


I thought I would post this cluster image as a contrast to the Abell 2255 cluster. This one has fewer bright blue spirals than 2255. Its really amazing to me to compare the size of the huge ellipticals forming the backbone of this cluster to the rest of the galaxies in the cluster.

The brightest and largest elliptical at the center of the field is PGC 54768.


Sky plot

Sky plot


Corona Galaxy Cluster, 



In these public groups

Astrophotography with Dobson