| OBJECT |
Sadr (center star) surrounded by IC 1318 (image above is reduced-size | other sizes: medium , original) Distance: 1,800 light years to Sadr and 5,000 light years to IC 1318 |
|
| Telescope | Takahashi FS-60C @ f/6.2 | |
| Mount | Takahashi EM200 Temma II | |
| Camera | QSI 540wsg @ -15C | |
| Filters | Astrodon Ha (3nm), Astrodon Tru-Balance I-Series LRGB Gen 2 | |
| Guider | SX Lodestar | |
| Settings | 8x15min Ha; 2x5min ea RGB (all bin1x1); AstroArt5, CS4 (slightly cropped, 10xdarks/flats/fdarks/bias) | |
| Date/Location Notes |
25,27 December 2013 - Las Cruces, NM Published as Amateur Astronomy Picture of the Day (AAPOD), 20 May 14. Published as Astronomy Magazine Picture of the Day, 14 May 14 (screenshot). Imaged over 2 nights. Cygnus area supergiant Sadr (also known as Gamma Cygni, γ Cygni, or γ Cyg) is the center bright star, together with the diffuse emission nebula IC 1318 that lies in the background (red and dark color). This image is Ha_HaRGB, where Ha:R (80:20) was used for the Red channel, and Ha for Luminance. |
