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Astrophotography

ABEL 2151 GALAXY CLUSTER IN HERCULES
Author Last Post
6/22/2018 10:54 AM
Great photo. 

On Fri, Jun 22, 2018, 10:47 Astrophotography <astrophotography@centexastronomy.org> wrote:



Nice image
Dave

---------- Original Message ----------
From: "Astrophotography" <astrophotography@centexastronomy.org>
To: "jde209@netzero.net" <jde209@netzero.net>
Subject: ABEL 2151 GALAXY CLUSTER IN HERCULES <<$199513975853$>>
Date: Fri, 22 Jun 2018 10:34:36 -0500




We had a couple of really great nights at Meyer on June 14th and 15th allowing me to capture 4+ hours of data on Abel 2151 Galaxy Cluster in Hercules. There are about 45 spiral, elliptical and irregular galaxies in this field of view. The brightest galaxy is  Magnitude 13.4. The group is located about 500 Million Light years away in the Hercules Super Cluster. This was shot with my ES-127 (5 inch) Refractor, with an SBIG STT-8300 Camera running at -30 C at Brickhouse Observatory.
    You can see some of the nebulousness from gas in our own Milky Way on the sides of the center.  To improve the sensitivity of the camera I used 2x2 binning on the Luminance channel for 10 minute subs. That sensitivity would have equaled 40 minutes open shutter time on each Luminance sub at 1x1.

Enjoy

Aubrey

Attachment(s):
File: Abel_2151_Galaxy_group-V1_R2_ST_FR_ID_SM.jpg (235.5 KB) -- Address: http://s3.amazonaws.com/ClubExpressClubFiles/901132/attach/1995139_0_Abel_2151_Galaxy_group-V1_R2_ST_FR_ID_SM.jpg
6/22/2018 10:44 AM
Nice image
Dave

---------- Original Message ----------
From: "Astrophotography" <astrophotography@centexastronomy.org>
To: "jde209@netzero.net" <jde209@netzero.net>
Subject: ABEL 2151 GALAXY CLUSTER IN HERCULES <<$199513975853$>>
Date: Fri, 22 Jun 2018 10:34:36 -0500




We had a couple of really great nights at Meyer on June 14th and 15th allowing me to capture 4+ hours of data on Abel 2151 Galaxy Cluster in Hercules. There are about 45 spiral, elliptical and irregular galaxies in this field of view. The brightest galaxy is Magnitude 13.4. The group is located about 500 Million Light years away in the Hercules Super Cluster. This was shot with my ES-127 (5 inch) Refractor, with an SBIG STT-8300 Camera running at -30 C at Brickhouse Observatory.
You can see some of the nebulousness from gas in our own Milky Way on the sides of the center. To improve the sensitivity of the camera I used 2x2 binning on the Luminance channel for 10 minute subs. That sensitivity would have equaled 40 minutes open shutter time on each Luminance sub at 1x1.

Enjoy

Aubrey

Attachment(s):
File: Abel_2151_Galaxy_group-V1_R2_ST_FR_ID_SM.jpg (235.5 KB) -- Address: http://s3.amazonaws.com/ClubExpressClubFiles/901132/attach/1995139_0_Abel_2151_Galaxy_group-V1_R2_ST_FR_ID_SM.jpg
6/22/2018 10:31 AM
We had a couple of really great nights at Meyer on June 14th and 15th allowing me to capture 4+ hours of data on Abel 2151 Galaxy Cluster in Hercules. There are about 45 spiral, elliptical and irregular galaxies in this field of view. The brightest galaxy is Magnitude 13.4. The group is located about 500 Million Light years away in the Hercules Super Cluster. This was shot with my ES-127 (5 inch) Refractor, with an SBIG STT-8300 Camera running at -30 C at Brickhouse Observatory.
You can see some of the nebulousness from gas in our own Milky Way on the sides of the center. To improve the sensitivity of the camera I used 2x2 binning on the Luminance channel for 10 minute subs. That sensitivity would have equaled 40 minutes open shutter time on each Luminance sub at 1x1.

Enjoy

Aubrey
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