Jim Burnell's CCD Images - Abell 1656 Clicking on an image will display a high-resolution view.

 

Object: Abell1656	Coma Galaxy Cluster	Const.: Leo
Camera: SBIG STL11000M	Scope: Tele Vue NP127is	Mount: Losmandy Titan
Filter(s): IR block	Exposure: 12x8m	3° x 2° FOV
The region around Abell 1656, the Coma Cluster of Galaxies, in Coma Berenices. A map of the region is shown below, and beneath that a second map, showing the core of the cluster. This image is a stack of 12 eight minute exposures using an STL11000M CCD camera through a Tele Vue NP127is 5" f/5.2 apochromatic refractor. The image was calibrated, defect corrected, stacked and gradient corrected, then a Sigmoid Scaling was performed, all using AIP4WIN V2. This image has been resampled down from its original size of 3981x2655. Clicking on either the image above or the map below will display an enlarged view. The map was created using MegaStar.

 

Object: Abell1656	Coma Galaxy Cluster	Const.: Coma Berenices
Camera: STL11000M	Scope: Vixen VC200L	Mount: Losmandy Titan
Filter(s): IR block	Exposure: 14x8m	Binned 2x2
This image shows Abell 1656, the Coma Cluster of Galaxies, in Coma Berenices. The image is a stack of 14 eight minute exposures using an 8" f/9 corrected Cassegrain reflector. The image was calibrated, defect-corrected and stacked, and a sigmoid scaling was performed using AIP4WINV2. This image has been resampled down from its original size of 1990x1328.

 

Object: Abell 1656	The Coma Cluster - Galaxy Cluster	Const.: Coma Berenices
Camera: SXV-H9	Scope: Tele Vue TV-60is	Mount: Losmandy Titan
Filter(s): IR block	Exposure: 7x8m	blank
This image of the Coma Cluster of galaxies in the constellation Coma Berenices, was acquired using an SXV-H9 CCD camera mounted on a Tele Vue TV-60 Imaging System, a 60mm f/6 apochromatic refractor specifically designed for CCD imaging. The TV-60IS uses a field flattener designed to provide pinpoint stars corner to corner across the field. This image is a stack of 7 eight-minute exposures that were calibrated, defect-corrected and stacked using AIP4Win Version 2. A gamma-log stretch was then applied to bring out the detail without burning out the galaxy cores. This image has been resampled down from its original size of 1349x1017.

 

Object: Abell 1656	The Coma Cluster - Galaxy Cluster	Const.: Coma Berenices
Camera: HX-916	Scope: AP130	Mount: AP1200GTO
Filter(s): IR block	Exposure: 60x60s	blank
Abell 1656, the Coma Galaxy Cluster in Coma Berenices. The brightest galaxies are NGC4889 and NGC4874. The bright object to slightly to the left of and below the center of the image is SAO 82595 a magnitude 7.16 foreground star, nearly every other object in the image is a galaxy. The Coma Cluster is 400 million lightyears away, and nearly 100 million lightyears deep. This image is a stack of 60 one minute exposures using a 5" f/6 refractor, calibrated and stacked using AIP4WIN. This image has been resampled down from its original size of 1300x1030. Click on it to see a full size image.

 

This is a negative view of the image above, which helps bring out the fainter cluster members. This image has been resampled down from its original size of 1300x1030. Click on it to see a full size image.

 

This is a map of center the region in the image above. As you can see, there are galaxies in the image that are too faint to appear on the map. Click on it to see a larger map of the whole region. (Map generated using MegaStar Version 5 .)