3 Jan 2016


One of my targets during early December.

Collimation wasn't too good and my FLI's PDF focuser needed some reparation again, but that's what this hobby is...

This faintish emission Nebula is located in constellation Cepheus.

Here's about 7 hrs of exposure:
Ha = 13 * 1200" bin1*1
RG = 10 * 360" bin2*2
B = 6 * 360" bin2*2

Full size on Astrobin

17 Dec 2015

Ngc-6888, The Crescent Nebula

One of my "main" targets during last few months. First exposures was taken at the end of October so it took more than a month to finalize this one.

The Crescent Nebula (also known as NGC 6888, Caldwell 27, Sharpless 105) is an emission nebula in the constellation Cygnus, about 5000 light-years away. It was discovered by Friedrich Wilhelm Herschel in 1792.[2] It is formed by the fast stellar wind from the Wolf-Rayet star WR 136 (HD 192163) colliding with and energizing the slower moving wind ejected by the star when it became a red giant around 250,000 to 400,000[citation needed] years ago. (wikipedia)

This is a mag 7,4 object. Here's almost 8 hrs of data at HaRGB.

Ha = 3*1800" + 8*1200" (bin1*1)
R = 14*360" (bin2*2)
G = 11*360" (bin2*2)
B = 11*360" (bin2*2)

Full size on Astrobin

13 Dec 2015


NGC 891 (also known as Caldwell 23) is an edge-on unbarred spiral galaxy about 30 million light-years away in the constellation Andromeda. It was discovered by William Herschel on October 6, 1784. The galaxy is a member of the NGC 1023 group of galaxies in the Local Supercluster. It has an H II nucleus. (wikipedia)

Here's only color channels binned 2*2. This was a morning target for few of my imaging sessions so there's no luminance channel, yet. If the weather some day clears I've planned to continue with this one.

Only 2 hr 12 min of rgb here (42:60:30 bin2*2 all).

8 Apr 2015

Draco Trio reprocessed

More reprocessing done!

Here's another one shot in 2013, original post and image can be found here.

Full size on Astrobin

7 Apr 2015

Ngc2685 reprocessed

Had some time to get back to reprocess one of my old images. This was shot in early 2013. (original post here.)

And 100% crop of the galaxy:

Full size on Astrobin

29 Mar 2015


This was my early-night target before Ngc3184. Unfortunately this drops low pretty fast after darkness so I got only 2-3 hrs of data during a night. And there was only two clear nights...

This galaxy is a relatively nearby, located only 39 million light years away. It's located quite close to IC342 in the constellation Camelopardalis. IC356, also known as Arp213, has a magnitude of 11.39.

Here's 5h 30min of exposure. 

L             = 16 * 900" (bin1*1)
RGB       =  6 * 300" (bin2*2)

Full size in Astrobin.

23 Mar 2015


At least one image for this season done!!!!

I missed almost two weeks of clear weather mainly because I noticed a minor flexure on my PDF focuser and wanted to fix it right away. Waited to got a longer extension plate to get camera closer to focuser. And I think it helped a bit because I didn't notice any flexure this time.

Here's the Ngc3184, a spiral galaxy in the constellation Ursa Major. It lies about 40 million light years away and has a magnitude of 10.4.

In the down right part of the image is galaxy cluster Abell 971.

Total exposure is 6 h 40 min.
                              L = 17*900"
                              R = 12*300" (bin2*2)
                              G = 9 *300" (bin2*2)
                              B = 10*300" (bin2*2)

Full size in Astrobin