Image of the day

Captured by
Douglas Rollain

Lion Nebula SH2-132 - RC71

About Astromart

My Account

New to Astromart?

Register an account...

Need Help?

Posts Made By: Jim Thommes

October 7, 2010 05:01 AM Forum: CCD Imaging and Processing/Deep Sky

CED 214 - in close

Posted By Jim Thommes
This image is with the little camera and the little mount with the old laptop and a small refractor - a setup I fool around with while my main system is imaging. This object is usually taken in a wider field (usually including NGC7822 as well), but this is a small close up showing some of the pillar structure. Image is here:

http://www.jthommes.com/Astro/CED-214_Close.htm
(click on the image for higher res)

Scope - Megrez 80 mm APO
Camera - Artemis285, Astronomik Ha, Edmund Optics RGBs
Mount - Celestron ASGT
Guiding - Home made 180 mm FL guide scope, DSI Pro, PhD Guiding


October 17, 2010 11:17 PM Forum: CCD Imaging and Processing/Deep Sky

Sharpless 157

Posted By Jim Thommes
Here is a view of the Sharpless 157 region. I might have wished for a little better composition so as to not cut off NGC 7510 cluster, but the emission areas are mostly included. Image and details are here:

http://www.jthommes.com/Astro/SH2-157.htm
(be sure to click on the image for full resolution)

Scope - Maksutov Newtonian (MN152) at f/4.8
Camera - ST8300 - Astronomik Ha RGB filters
Mount - G11/Gemini
Guiding - Megrez 80 mm (555 mm FL), DSI Pro, PhD Guiding

October 26, 2010 04:04 AM Forum: CCD Imaging and Processing/Deep Sky

LBN 437

Posted By Jim Thommes
This is kind of a seldom imaged area - I believe this area has been done before by Dean Rowe and Tyler Allred. This one I have done with the small camera (while the larger camera was working on something else). I captured some Ha data to blend with LRGB since this area has both dust and emission. Don't know if the blend is visually accurate - but it does show different structures. Image is here:

http://www.jthommes.com/Astro/LBN437.htm

Scope - WO Zenithstar 66 mm APO at f/4.5
Camera - Artemis285
Mount - CG5 (Celestron ASGT)
Guiding - Home made 180 mm FL guide scope, DSI Pro, PhD Guiding

October 29, 2010 03:28 AM Forum: CCD Imaging and Processing/Deep Sky

NGC 281

Posted By Jim Thommes
I did an RGB image of the PacMan (with some luminance and Ha data). I know this is a favorite target for narrowband - but I'm not there yet. Image and details are here:

http://www.jthommes.com/Astro/NGC281.htm
(click link for larger image)

Scope - C8 at f/6.3
Camera - ST8300 - Astronomik HaLRGB filters
Mount - G11/Gemini
Guiding - Megrez 80 mm at 555 mm FL, DSI Pro, PhD Guiding

November 10, 2010 03:36 AM Forum: CCD Imaging and Processing/Deep Sky

Sharpless 187

Posted By Jim Thommes
I pointed the little camera in the direction of this object for a couple of hours. I was actually impressed with the catch for such a short exposure. SH2-187 image and details are at:

http://www.jthommes.com/Astro/SH2-187.htm

I have it stretched kinda hard, but like I say, its more than I expected from this data. This is an LRGB image - Ha data I took was on too short a sub and the signal level was too weak to be usefull so it went unused.

Scope - Megrez 80 mm refractor at f/5
Camera - Artemis285 Edmund Optics RGB filters
Mount - CG5 (Celestron ASGT)
Guiding - Homemade 180 mm FL guide scope, DSI Pro, PhD Guiding

November 16, 2010 05:26 AM Forum: CCD Imaging and Processing/Deep Sky

M33

Posted By Jim Thommes
Here is an old favorite of mine - the Triangulum Galaxy. I worked the processing to try to highlight the Ha areas. Image and details are at:

http://www.jthommes.com/Astro/m33.htm

Scope - C8 at f/6.3 (yes, I am still trying to take data with the C8)
Camera - ST8300M - Astronomik LRGB filters
Mount - G11/Gemini
Guiding - Megrez 80 mm at 555 mm FL, DSI Pro, PhD Guiding

December 5, 2010 09:53 PM Forum: CCD Imaging and Processing/Deep Sky

Heart Nebula - IC 1805 Ha RGB

Posted By Jim Thommes
Ha RGB images are always an interesting process adventure....

In this case, I started off with my RGB data straight up, strongly stretched as a color layer, Ha as luminance (layered a few times). The final result was color balanced (blue and green reduction) in the mid-reds to achieve roughly a 3:1:1 / R:G:B ratio (a step I sometimes take to minimize salmon or pink). All done with a star mask. So in other words, no direct mix of Ha into R or B.

Image is here:

http://www.jthommes.com/Astro/IC1805.htm
(click on the image for higher resolution)

Scope - WO Zenithstar 66 mm APO
Camera - ST8300M (Astronomik Ha RGB filters)
Mount - G11/Gemini
Guiding - WO Megrez 80 mm at 555 mm FL, DSI Pro, PhD Guiding


December 17, 2010 10:29 PM Forum: CCD Imaging and Processing/Deep Sky

Abell 262: The Fath and NGC708

Posted By Jim Thommes
Here is a shot from the little camera (while the big one was busy catching photons). The image scale is a bit ridiculous for any resolution on The Fath, but the image field captures only about a quarter of Abell 262. Lots of little galaxies there. Image is here:

http://www.jthommes.com/Astro/NGC708.htm
(click image for larger size)

Scope - WO Zenithstar 66 APO
Camera - Artemis285
Mount - CG5 (Celestron ASGT)
Guiding - 180 mm FL, DSI Pro, PhD Guiding

December 27, 2010 06:21 PM Forum: CCD Imaging and Processing/Deep Sky

California - NGC1499

Posted By Jim Thommes
Here is a popular object that I wanted to get some data on with My ST8300 - the California Nebula. I actually kind of like the H-Alpha image on this perhaps a bit better.

Image and exposure data is here. Take a look at the H-Alpha data too:
http://www.jthommes.com/Astro/California%20Nebula.htm

Scope - WO Zenithstar 66 mm APO
Camera - ST8300 (Astronomik Ha RGB filters)
Mount - G11/Gemini
Guiding - Megrez 80 mm at 555 mm FL, DSI Pro, PhD Guiding

January 4, 2011 04:51 AM Forum: CCD Imaging and Processing/Deep Sky

NGC 1746 - Open Cluster??

Posted By Jim Thommes
NGC 1746 is in the Catalog as an open cluster, but it may be just an asterism according to a study by some Spanish Astronomers*. What is interesting is that two clusters (NGC 1750 and NGC 1758) which are background line of sight to NGC 1746 do seem to be open clusters (stars formed from the same molecular cloud). Image and details are here:

http://www.jthommes.com/Astro/NGC1746.htm

This was an image with my little camera while the larger camera was busy with IC410.

Scope - Zenithstar 66 mm APO
Camera - Artemis285
Mount - CG5 (Celestron ASGT)
Guiding - Home made 180 mm FL guide optic, DSI Pro, PhD Guiding.


* Galadi-Enriquez, Jordi, Trullols, "The overlapping open clusters NGC 1750 and NGC 1758", Astron. Astrophys.

Funding Member

Sponsors


View all sponsors

Search