Soap Bubble in Cygnus - HaPosted By Roland Christen |
Nice shot! Good capture.
Rolando
Rolando
Posts Made By: Roland Christen
July 18, 2012 03:03 PM
Forum:
CCD Imaging and Processing/Deep Sky
July 24, 2012 09:44 PM
Forum:
CCD Imaging and Processing/Deep Sky
July ImagesPosted By Roland Christen |
So here are the two images, warts and all for your approval.
Darn good if you ask me. Don't see any warts.
Rolando
Darn good if you ask me. Don't see any warts.
Rolando
August 7, 2012 05:05 PM
Forum:
CCD Imaging and Processing/Deep Sky
Heart Soul Double Cluster Mosaic HAlpha 13nmPosted By Roland Christen |
Beautiful. Wish the image was a bit larger.
Rolando
Rolando
August 9, 2012 03:45 PM
Forum:
Equipment Talk
Nexstar 8 se astigmatism help!????Posted By Roland Christen |
Could be that you're seeing tube currents. These mimic astigmatism. Take a picture of the unfocused star image inside and outside of focus and post.
Rolando
Rolando
August 10, 2012 08:41 PM
Forum:
CCD Imaging and Processing/Solar System
Jupiter RGB F30 8/7/12Posted By Roland Christen |
Definitely a winner.
Rolando
Rolando
August 13, 2012 04:00 PM
Forum:
Astro-Physics
Veil in Narrowband colorPosted By Roland Christen |
I did get some more narrow band data (not as much as I would have liked) but it did fill in some of the fainter areas and reduced the background noise. Not a dramatic improvement unfortunately.
Rolando
Rolando
August 14, 2012 04:57 AM
Forum:
Astro-Physics
Veil in Narrowband colorPosted By Roland Christen |
I also shot the Veil the other day using my 175EDF astrograph, but only in H-a and OII. The green channel is derived via a combination of H-a and OIII. There is no SII since I wanted to concentrate on getting a high resolution image.
I used the QSI 683 camera, the refractor had the field flattener so was operating at F8.3, 1453mm focal length. Image scale is .77 arc sec per pixel. Seeing varied, but at times was down around 1.3 arc sec FWHM. There are only 4 x 15 minute exposures in this set, so not very deep. Tonight I am gathering more data. Hopefully I can get much more since this is an ideal combination. The 683 has extremely low noise compared to my STL camera, so the longer F-ratio really is not a hindrance.
This first is a 2 panel mosaic (could not fit it all in one shot). Size has been reduced radically, as you will see on the full size crops.
Rolando
I used the QSI 683 camera, the refractor had the field flattener so was operating at F8.3, 1453mm focal length. Image scale is .77 arc sec per pixel. Seeing varied, but at times was down around 1.3 arc sec FWHM. There are only 4 x 15 minute exposures in this set, so not very deep. Tonight I am gathering more data. Hopefully I can get much more since this is an ideal combination. The 683 has extremely low noise compared to my STL camera, so the longer F-ratio really is not a hindrance.
This first is a 2 panel mosaic (could not fit it all in one shot). Size has been reduced radically, as you will see on the full size crops.
Rolando
August 14, 2012 05:40 AM
Forum:
Equipment Talk
Old equatorial mountPosted By Roland Christen |
Beautiful old mount. Never seen one like that.
Rolando
Rolando
August 22, 2012 11:40 PM
Forum:
CCD Imaging and Processing/Deep Sky
My Veil in RGB The Witch's BroomPosted By Roland Christen |
That's very good, Floyd. You must have a really nice dark sky to work with. Whereabouts do you image in the San Diego area?
Rolando
Rolando
September 5, 2012 09:06 PM
Forum:
Astro-Physics
AP Waiting List ExplainedPosted By Roland Christen |
Yup! Ya found me out...
Rolando
Rolando
Funding Member
