vdB130 Ha(R+H-a)GB (North Right) (~60% Original -> 1,617K )
vdB130 in H-a (100% Original -> 2,104K )
Close-Up of Dog with Stick in Mouth - DWB44 -> 801K
|* * Technical Data * *|
|Date||06-08 through 06-15-07|
|Exposure||H-a 3.5hrs 7x30mins, RGB 2hrs ea. 24x5mins, Bin 1x1|
|Optics||1995 AP155EDFS #95, f:7.26, FL=1126|
|Mount||2007 AP1200 GTOCP3 #714|
|Camera||2005 SBIG STL-11000M, 1.65 arc.sec p/pixel @ -20C, AstroDon I-Series HaRGB.|
|Guider||2006 SBIG STL-Remote w/Red filter, TAK FS-78, FL-632mm f:8.1.|
|Equipment||AP Field Flatener, FeatherTouch FTF-3545 & Digital MicroFocuser, PreciseParts Adapters.
Custom built Water Cooling and DryAir Purge Systems
|Processing||MaximDL/CCD w/Russ Crowman's Sigma Combine Plug-In, PhotoshopCS2, FITSplug by Eddie Trimarchi, AstroActions by Noel Carboni|
|Location||StarFields Observatory (SFO), Chiefland Astronomy Village, Florida, 29d 24m 26.34s North, 82h 51m 31.26s West|
... Beautiful region near Sadr in Cygnus. The Large image is 100% of the Original to show fine the details.
... Have fun scroling around, this image stands up well at 150% for those who use IE7.
... Interesting Dark 'hollow' nebula, dispalying traits of a Planetary Nebula, with denser parts around its edges where dust blocks more light.
... Beautiful flowing streamers coming off wave front and another area to the lower right.
... I got tired of and board of waiting for clear skies so I processed the available H-a sub-frames, one more 30mins H-a needed.
... Used Rober Gendler's H-a(R+H-a)GB technique. Interesting process, much better bright star colors but needs more work and practice.
... Wow! Look at the sharp details on the nose of the dark nebula dog right of center.
... The "Dog with Stick in Mouth" has been identified as a "twisted elephant trunk", DWB44
"A theory based on the concept of magnetically twisted trunks is developed further, where the initial angular momentum is a consequence of the twisting of parent filaments containing mass condensations. Our results also suggest a new process of removing angular momentum from parent molecular clouds." "The Astronomical Journal"