M16

03/08/2008 (18:44) by Petri Kehusmaa
M16

M16

This nebula is very hard to image at these latitudes where it rise only about 15 degrees above horizon and summer night skies are still very pale. Anyway, I gave it a try and somehow succeeded to have even colors. The blue channel images were almost unusable but I managed to get something out of them. Imaged with 8″ SCT and STL-11000. Total exposure 160 minutes.

Final M42 from Season 2007-2008

02/07/2008 (15:55) by Petri Kehusmaa

I combined my latest image with earlier M42 image and was able to get total of 3.5 hours of exposure. This is the result and will be my final for season 2007-2008. Next time I will return to this on November.

M42

M42

M42 sub exposures from January

01/07/2008 (14:47) by Petri Kehusmaa

Rainy days might be rewarding after all. I had some time to browse through my image directories and found 1 minute sub exposures taken on January. I put them together (HaRGB) and here is the result. Total exposure time is 50 minutes. More details in my image gallery (click image).

M42

M42

The California Nebula

01/03/2008 (14:05) by Petri Kehusmaa
The California Nebula

The California Nebula

There were still some unprocessed images on hard disk. These frames were taken on 5th of Jan. There is total of 50 minutes of Ha data.

Rosette Ha 2.5 hours and HaRGB 4.6 hours

27/02/2008 (13:18) by Petri Kehusmaa
The Rosette Nebula

The Rosette Nebula

The Rosette Nebula HaRGB

The Rosette Nebula HaRGB

I found some unprocessed images of Rosette nebula and combined them with my earlier images from december. The result is 2.5 hours of Ha-data and 4.6 hours of HaRGB (second image).

Rosette in Colors

14/12/2007 (16:37) by Petri Kehusmaa
The Rosette Nebula

The Rosette Nebula

Last night I was able to image RGB-data for Rosette and here is the result.

The Rosette Nebula

13/12/2007 (15:32) by Petri Kehusmaa
The Rosette Nebula

The Rosette Nebula

This is my very first image of Rosette Nebula. This image was taken by automated imaging session where CCDCommander was controlling my dome, mount, focuser, cloud sensor and two CCD cameras. Everything went well and this is just one of my targets from last night. Total length of my automated imaging session was 10 hours!! How great is that!

I will continue to image this great nebula and will add the results here when available. Image details available here.

The Soul Nebula, IC 1848

29/11/2007 (16:13) by Petri Kehusmaa
IC1848, 'The Soul Nebula'

IC1848, ‘The Soul Nebula’

This is a 40 minutes exposure with Baader 7 nm  H-alpha filter and SBIG STL11000M-C2. Weather was poor with high clouds and mist. I had to stop imaging when heavy clouds arrived. I will continue to pursue more Ha and RGB data when weather allows.

The Bubble Nebula Wide Field v0.2

14/10/2007 (20:26) by Petri Kehusmaa
NGC7635 Wide Field

NGC7635 Wide Field

This is the start of my ‘Bubble Nebula Wide Field’ -project. My goal is to take very long Ha exposure and at least 1 hour of each color channel (RGB). This is 170 minutes of Ha. Taken with TMB80 APO with TV 0.8 fr/ff and STL-11K-C2 CCD.

The Heart Nebula, IC 1805

13/10/2007 (22:19) by Petri Kehusmaa
IC1805 'The Heart Nebula'

IC1805 ‘The Heart Nebula’

This great nebula has been in my target list for a long time and it was time to capture it with my TMB80 APO and STL-11K. There is not a great deal of details but I like the composition and color. This is HaGB combined and total exposure time is 3.5 hours. Thanks for looking.