M57 - Ring Nebula

Date: 2009-08-07/08/09
Location: South Common Observatory
Scope: Celestron C8 @ F/10
Camera: Starlight Xpress SXV-H9
Guide Scope: Astro Professional 102ED
Guide Camera: SX Guidehead
Exposure (Ha as Red): 14 x 237 seconds (avg) - 1x1
Exposure (OIII as Green/Blue): 10 x 300 seconds - 1x1


Date: 2009-06-07
Location: South Common Observatory
Scope: Celestron C8 @ F/10
Camera: Starlight Xpress SXV-H9
Guide Scope: Astro Professional 102ED
Guide Camera: SX Guidehead
Exposure (Ha as Red): 42 x 90 seconds - 1x1
Exposure (OIII as Green): 25 x 72 seconds - 1x1
Exposure (Hb as Blue): 15 x 76 seconds - 1x1


Date: 2009-05-18 & 19
Location: South Common Observatory
Scope: Astro Professional 102ED @ F/14
Camera: Starlight Xpress SXV-H9
Guide Scope: Williams Optics Zenithstar 66mm
Guide Camera: SX Guidehead
Exposure (Ha as Red): 29 x 140 seconds
Exposure (OIII as Green): 15 x 120 seconds
Exposure (Hb as Blue): 14 x 120 seconds


Date: 2006-06-18
Object: Messier 57 - Ring Nebula
Scope: Meade 10" LX200R
Camera: Canon 350D
Exposure: ?