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RICHARD COFER

VdB 141 Ghost Nebula

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Posts Made By: Roland Christen

October 6, 2010 11:12 PM Forum: CCD Imaging and Processing/Deep Sky

M32 spiral arm

Posted By Roland Christen
Same equipment as M33. This was a stack of 45 x 1 minute exposures.

Rolando

October 6, 2010 11:54 PM Forum: CCD Imaging and Processing/Deep Sky

Merope at 20 second subs

Posted By Roland Christen
This image of Merope nebula was shot at 20 second subs, 7x20 seconds for a very specific reason. There is a very small nebula right next to this very bright star, along with the usual whispy stuff. This first image is stretched to show the whisps. The next image will be dialed back to show the tiny nebula right next to the star.

Of course the whisps would be much more dramatic with a series of longer exposures, but that would eliminate the interesting nebula IC349.

Rolando

October 8, 2010 08:09 AM Forum: Bad to the Bone Autos

Hennessey ZR1 going around the track

Posted By Roland Christen
Incredible video of professional driver taking a 700+hp Vette around the track. Love the exhaust note, pure music:
http://www.youtube.com/watch?v=EM5DHeNZUDs&feature=related

Rolando

October 8, 2010 05:43 PM Forum: CCD Imaging and Processing/Deep Sky

IC1848

Posted By Roland Christen
'Twas an all-nighter - shooting several objects from 7pm until 6 am dawn. Seeing was decent and transparency was great.

First object IC1848 in Cassiopeia:
6 x 30 minutes Baader 7nm H-a, STL11K, 305F3.8 AP Astrograph on 3600 mount. Full frame at approx 1/3 size.

Will revisit this one with OII and SII later.

October 15, 2010 11:02 PM Forum: CCD Imaging and Processing/Deep Sky

M15

Posted By Roland Christen
Three exposures of 5 minutes combined for the overall image. The core was completely burned out so I added a series of 10 second exposures to bring out the core detail.

305mmF3.8, QSI 853 camera, Baader RGB filters.

Rolando

October 16, 2010 12:24 AM Forum: CCD Imaging and Processing/Deep Sky

Cocoon

Posted By Roland Christen
Multi-hour exposure of the Cocoon nebula. Two little galaxies also in the image at the upper right half way to the corner.

305F3.8 Astrograph, QSI853 camera, Baader RGB filters.

Rolando

October 20, 2010 04:11 PM Forum: CCD Imaging and Processing/Deep Sky

Double Cluster

Posted By Roland Christen
A short test image taken between clouds last night. 10 seconds sub exposure x 6 exposures each LRGB (60 seconds total exposure for each color).

305mmF3.8 astrograph, QSI853 camera.

Rolando

October 20, 2010 04:12 PM Forum: Astro-Physics

Double Cluster

Posted By Roland Christen
A short test image taken between clouds last night. 10 seconds sub exposure x 6 exposures each LRGB (60 seconds total exposure for each color).

305mmF3.8 astrograph, QSI853 camera.

Rolando

November 3, 2010 12:18 AM Forum: Astro-Physics

Ghost of Mirach

Posted By Roland Christen
A difficult faint galaxy near the bright star Beta Andromedae. Lots of little galaxies in this area. The full field shows about 75 faint galaxies scattered thoughout.

Total exposure 30 minutes LRGB, 305F3.8 astrograph, QSI 583 camera, Baader LRGB filters. There were lots of filter reflections that had to be dealt with unfortunately, but I did want to show the stars and galaxies near the star, which were quite evident in the L image. I would love to see someone develop better sharp cutoff filters in the future. Unfortunately the camera cover glass has only a single layer coating and causes most of the large halos by interaction with the filters.

Rolando

November 3, 2010 12:37 AM Forum: CCD Imaging and Processing/Deep Sky

Ghost of Mirach

Posted By Roland Christen
A difficult faint galaxy near the bright star Beta Andromedae. Lots of little galaxies in this area. The full field shows about 75 faint galaxies scattered thoughout.

Total exposure 30 minutes LRGB, 305F3.8 astrograph, QSI 583 camera, Baader LRGB filters. There were lots of filter reflections that had to be dealt with unfortunately, but I did want to show the stars and galaxies near the star, which were quite evident in the L image. I would love to see someone develop better sharp cutoff filters in the future. Unfortunately the camera cover glass has only a single layer coating and causes most of the large halos by interaction with the filters.

Rolando

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