Astro Images: June-July 2013

12" LX200R, Paramount ME, STL-11000M C1

CLICK ON EACH IMAGE FOR FULL-RESOLUTION VIEW

 

M17 - The Omega Nebula (also called Swan Nebula and Lobster Nebula) - PREVIEW  (LX, SII-Ha-OIII Image)

(Total exposure 25.0 hours narrowband data; SII 3nm 16x30 min 2x2, Ha 3nm 18x30 min 1x1, OIII 3 nm 16x30 min 1x1; Hubble Palette; taken over 14 nights July 2013)

[I HAVE COLLECTED RGB DATA AND PLAN TO INCORPORATE THAT FOR PROPER STAR COLORS]

M61 - Barred Spiral Galaxy in Virgo  (LX, LRGB Image)

(Total exposure 8.3 hours ; L 11x20 min binned 1x1; R 6x20 min, G 6x10 min, B 5x20 min, all binned 2x2; taken over 8 nights May-June 2013)

M16 - The Eagle Nebula - PREVIEW  (LX, SII-Ha-OIII Image)

(Total exposure 38.5 hours narrowband data; 10 hours SII [of 13 hours taken] binned 2x2;17.5 hours Ha [of 24 hours taken] binned 1x1; 11 hours OIII [of 13 hours taken] binned 2x2; Hubble Palette; May- June 2013)

[A TOTAL OF 60 HOURS OF DATA WAS CAPTURED, INCLUDING LRGB DATA TO BE ADDED TO THIS IMAGE TO PRODUCE PROPER STAR COLORS]

M88 - Spiral Galaxy in Virgo Cluster  (LX, LLsRGB Image)

(Total exposure 9.7 hours not including synthetic luminance from RGB1; L 12x20 min, binned 1x1; R 4x20 min, G 6x10 min, B 7x20 min 6x10 min, all binned 2x2; Cropped; June 2013)

M14 - Globular Cluster  (LX, LsRGB Image)

(Total exposure 3.8 hours; Synthetic Luminance from RGB1; R 6x20 min, G 5x10 min, B 3x20 min, all binned 1x1; June 2013)

M5 - Globular Cluster  (LX, LsRGB Image)

(Total exposure 2.7 hours; Synthetic Luminance from RGB1; R 5x10 min 3x5 min, G 5x5 min 4x2 min, B 5x10 min 3x5 min, all binned 1x1; June 2013)

Saturn  (LX, RGB Image)

(1 each RGB exposures of 0.01-0.02 sec, all binned 1x1; enlarged; June 2013)

 SATURN'S DIAMETER IS ABOUT 19 ARCSECONDS, AND ITS RINGS ABOUT 40 ARCSECONDS (major diameter, ± 4 as); AS THE IMAGE SCALE IS 0.54 as/pixel, THIS IMAGE OF SATURN IS ONLY ABOUT 80x80 PIXELS
 (Normally, a barlow, Powermate or other focal length extender is used to enlarge the optical image for more resolution on the CCD chip; even so, resolution is 400x400 pixels at best. Thus the need for only webcam resolution to do planetary imaging.)