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Contains:  IC 1178, IC 1179, IC 1181, IC 1182, IC 1183, IC 1185, NGC 6040, NGC 6041, NGC 6045, NGC 6047
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Abell 2151 Hercules Galaxy Cluster, 


            Jerry Macon
Abell 2151 Hercules Galaxy Cluster
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Abell 2151 Hercules Galaxy Cluster

Technical card

Dates:March 16, 2019March 17, 2019

Astrodon Gen 2 L 36mm: 21x200" (gain: 99.00) -15C bin 1x1
Astrodon Gen 2 RGB 36mm: 87x200" (gain: 99.00) -15C bin 1x1

Integration: 6.0 hours

Avg. Moon age: 10.13 days

Avg. Moon phase: 77.38%

Bortle Dark-Sky Scale: 4.00

Temperature: -10.00

Basic astrometry details job: 2598532

RA center: 16h 5' 1"

DEC center: +17° 44' 20"

Pixel scale: 0.701 arcsec/pixel

Orientation: 87.721 degrees

Field radius: 0.381 degrees

Resolution: 3080x2416

Locations: Dark Star Observatory, Taos, New Mexico, United States

Data source: Own remote observatory

Remote source: Non-commercial independent facility


Images from the following two scopes (piggybacked) contributed to this image:
AG12+ASI1600MM at .70 asec/pix
TV127is+ASI183MM at .75 asec/pix.
They were all registered to the best Ha image taken on the AG12.
Using L (synthetic from RGB) from the TV NP127is refractor effectively eliminates the spikes from the AG12.

The Hercules Cluster (Abell 2151) is a cluster of about 200 galaxies some 500 million light-years distant, located visually (not literally) in the constellation Hercules. It is rich in spiral galaxies and shows many interacting galaxies. The cluster is part of the larger Hercules Supercluster, which is itself part of the much larger Great Wall super-structure.

Arp 272 is a remarkable collision between two spiral galaxies, NGC 6050 and IC 1179, located in the lower central area of this image. A third galaxy is interacting with them. Image B is a Hubble image of these three interacting galaxies.

The cluster's brightest member is the giant elliptical galaxy NGC 6041, top center. However, it does not appear brighter in this image than many of the other galaxies.



Jerry Macon
License: Attribution Creative Commons


  • Final
    Abell 2151 Hercules Galaxy Cluster, 


            Jerry Macon
  • Abell 2151 Hercules Galaxy Cluster, 


            Jerry Macon

Sky plot

Sky plot


Abell 2151 Hercules Galaxy Cluster, 


            Jerry Macon