The Whirlpool Galaxy (M51) is a classic, a real must that now gets into Calar Alto Documentary Photo Gallery with this impressive photo obtained with the Zeiss 1.23 m reflector. The…
The CALIFA survey will observe sample of 600 selected galaxies in the local universe, using more than 200 observing nights with the Zeiss 3.5 m telescope of Calar Alto Observatory.…
Core-collapse (or gravitational) supernovae are among the most energetic and violent events in the universe. They constitute the final tremendous explosions that end the life cycles…
The space telescope Herschel is the largest space-borne observatory to date, carrying the biggest astronomical mirror ever launched into orbit. Calar Alto Observatory has participated…
Spiral galaxies as our own are made up from several structural components. Their most outstanding part is a flat disc where stars and gas trace graceful spiral arms. In the centre of…
The spiral galaxy NGC 7331, in Pegasus, can be seen with small telescopes under dark skies as a faint fuzzy spot. It is an island universe similar to our own Galaxy (or maybe somewhat…
Stars without enough mass to turn into exploding supernovae end their lives blowing away most of their mass in a non-explosive, but intense stellar wind. Only a hot stellar core remains…
Astronomers have confirmed the binary nature of OJ 287, a very massive black hole in the centre of a very distant galaxy in the constellation of Cancer. A central black hole, with a…