Showing posts with label Star cluster. Show all posts
Showing posts with label Star cluster. Show all posts

31 Oct 2013

M92

I took an hour of total exposure of this beautiful globular cluster. M92 is one of the brighter globular clusters in the northern hemisphere, but it is often overlooked by amateur astronomers because of its proximity to the even more spectacular Messier 13. It is visible to the naked eye under very good conditions.

It was discovered by Johann Elert Bode in 1777, then published in the Jahrbuch during 1779. The cluster was independently rediscovered by Charles Messier on March 18, 1781 and added as the 92nd entry in his catalogue. M92 is at a distance of about 26,700 light-years away from Earth and has a magnitude of 6.5.













Exposure of this image is:
                          L             =   10 * 180"
                          RGB       =     5 * 120"
                          TOTAL   =    1 hr

Full size in Astrobin

22 Mar 2013

M36

Another open cluster taken to fill the empty gap between main targets...

Open Cluster M36 (also known as Messier Object 36, Messier 36, M36, or NGC 1960) is an open cluster in the Auriga constellation. It was discovered by Giovanni Batista Hodierna before 1654. M36 is at a distance of about 4,100 light years away from Earth and is about 14 light years across. There are at least sixty members in the cluster. (wikipedia)

This cluster has a size of 12 arcmin and magnitude of 6.3.
















Here's 2 hours total exposure of RGB (RG=6*300" and B=12*300").

14 Mar 2013

M103 finalized

Here's the final version of the Messier 103. The open cluster is located in constellation Cassiopeia with a magnitude of 7.4.

This open cluster was discovered in 1781 by Charles Messier's friend and collaborator Pierre Mechain. It's one of the most distant open clusters, with distances of 8000 and 9500 light years from the earth and ranging about 15 light years apart. (wikipedia)

Here's RGB image with 20:20:40 minutes of exposure.














Full size in Astrobin

10 Mar 2013

M103

I took a quick 1 hour picture of this open cluster.

Here's RGB image with 4*300s exposure for each color binned 1*1.



15 Mar 2011

Messier 53 with NGC5053

I wasn't satisfied with my EQ-6's performance with C8 so I changed to a smaller scope, APM 80/500.

Last week I took pictures of three different objects but hadn't had time to process them. These two globular clusters was a perfect shot for the short refractor. They can be found in constellation Coma Berenices.

Exposure of this LRGB image is 285:30:40:45 minutes.

25 Jan 2010

M38, NGC1907, IC417, NGC1931, Sh2-237 and parts of Sh2-230

There's a lot of stuff in this part of constellation Auriga. A lot of dim nebulosity of those Sharpless -objects and many open clusters.

I took the color data when I had problems with that camera driver, so RGB channels are not calibrated. Processing this object was really hard for my skills, because I wanted to maintain the colors of the stars. But I'm quite happy for the final result!












The image is Ha(HaR)GB with exposure of 6*20min (Ha) and 3*10min (RGB).

M45; The Pleiades

I've planned to image this nice object since I started few years ago, and now I finally aimed my telescope towards it.

Camera's new driver is working perfectly so imaging is now more than easy!! Just have to make a script in CCDCommander and let it do all the work. But there's still some final adjustments left to do with it...













Exposure: 6*10 minutes of luminance and 6*5 minutes of RGB (bin2*2)

30 Dec 2009

Double Cluster: NGC884 and NGC869

This is the final version of the image I took few weeks ago.

These beautiful open clusters are located in constellation Perseus and are visible with naked-eye. They are also quite close to each other in space because their distances to earth is about 7600 and 6800 light years.














Photographed through SkyWatcher ED80 Pro with QHY9.
Exposure: luminance 10*5min and colors 10*3min (RGB)

18 Nov 2009

M103

Another unguided picture! Fight with my guider continued and he was winning... At that point I had no choice but image brighter objects!

This is an colorful open cluster in constellation Cassiopeia. Total exposure of the image was again less than 30 minutes.

M13: Hercules cluster

This beautiful glubular cluster was also one of the test objects of my transfer to automated imaging in August. I still had big problems with my guider which crashed 2 to 4 times every hour. After many reboots I managed to take few 3 min subexposures of luminance-channel. RGB-channels were all unguided.