The Iris Nebula, also NGC 7023 and Caldwell 4, is a bright reflection nebula in the constellation Cepheus. L: 39 x 900s R, B: 12 x 900s G: synthetic Total exposure time: ~16 hours Data acquired at SRO throughout November 2014 Scope: Takahashi FSQ106 Mount: Paramount ME Camera: QSI 683WSG Astrometry data: Center (RA, Dec):(315.190, 67.702) Center (RA, hms):21h 00m 45.568s Center (Dec, dms):+67° 42' 08.610" Size:1.93 x 1.45 deg Radius:1.206 deg Pixel scale:1.05 arcsec/pixel Orientation:Up is -91.6 degrees E of N
L: 36 x 15m R: 15 x 15m G: 20 x 15m B: 19 x 15m Total exposure time: 22.5 hours. Data acquired at SRO throughout November 2014 Scope: Takahashi FSQ106 Mount: Paramount ME Camera: QSI 683WSG
Exposure time: L: 24 x 600s R, G, B: 12 x 600s each Total exposure time: 10 hours Acquired from SRO (Sierra Remote Observatories) Scope: Takahashi FSQ106 Mount: Paramount ME Camera: QSI 683WSG
