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About this Image |
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This area around the yellow supergiant Antares, some 700 times larger in diameter than the Sun, is one of the most colorful in the sky.
Above left of Antares (Alpha Scorpii) lies the star Rho Ophiuchi embedded in the blue emission nebula IC 4604;
the star in the red region on top right is Sigma Scorpii; just above Antares is the globular cluster M 4. To the bottom right is Tau-Scorpii.
Within the dense dark dust lanes young stars are born, visible in the far IR. The distance to Antares is approx. 520 light years.
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| Optics |
Canon 200mm EF L lens fully open at f/2.8 |
| Mount | AP-400 GEM |
| Camera | SBIG STL-11000M at -20C, internal filter wheel |
| Filters | Astronomik LRGB |
| Date | Aug 14, 2004. |
| Location | Hakos/Namibia |
| Sky Conditions | mag 6, good transparency, temperature 13 C, |
| Exposure |
LRGB= 15:15:15:15 min (5-minute sub-exposures)
all 1x1. |
| Processing |
Image aquisition in Maxim DL 4.0; Image calibration, aligning, mean stacking, DDP and color synthesis in ImagesPlus; Photoshop: curves, color balance, cropped; |