Total Exposure Time: 5 hours RGB(bin2),
110:80:110 // 30x10 min. frames UNGUIDED
RA 20h 37m 29s, Dec +42° 15' 45"
Pos Angle +91° 51', FL 599.9 mm, 3.88"/Pixel
This image is 1570x1166 pixels

Officina Stellare Riccardi-Honders Veloce 200 RH OTA
ASA DDM60 Pro Mount
Officina Stellare - http://www.officinastellare.com/products_scheda.php?idProd=15
On my site - http://www.pbase.com/boren/officina_stellare_riccardihonders_veloce_rh_200
Deeper technical informaiton on the Riccardi-Honders design - http://www.telescope-optics.net/honders_camera.htm
ASA DDM60 Pro - http://www.astrosysteme.at/eng/mount_ddm60.html
On my site - http://www.pbase.com/boren/asa_ddm60_pro
SBIG ST8300M, RGB Astrodon Gen II filters

vdB 136 is the yellow reflection nebula in the center of the image. Numerous emission nebulae are present in this area of the constellation Cygnus. Also present, but much less seen, are thin vales of dust which when imaged give a bluish tint to the sky background. Processing the data to bring out the faint dust does reduce the overall contrast of the image, but I feel that it is worth it to see this etheral dust. Areas where there is much less dust or more opaque dust appear black. Color data image may be seen here. The Diamond Ring Cluster is a star cluster in the image, but it can only be seen in infared. (ref. http://tvdavisastropics.com/astroimages-1_0000c7.htm).