In the picture below is GRB110205A that was photographed by using the GRAS 005 remote telescope that is located in New Mexico, USA. The brightness of the GRB was at the moment of the photographing 16.3 CR. The photo has been taken without filters with one 600 sec. exposure. GRB was observed 1h 20min. and during this time GRB dimmeded about 1.3 magnitudes. From this observation the GCB circular 11637 was published. The confirmed red shift of the object was z ~ 2.22 (Cenko et al., GCN 11638). The GRB is therefore 7.2 billion years old and the distance to the object is 12.7 billion light years (Ho = 75 km/s/Mpc).
Observers: Markku Nissinen, Veli-Pekka Hentunen and Tuomo Salmi