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GCN Circular 9236

GRB 090424: Optical observations from 1.23m CAHA
2009-04-24T22:59:07Z (15 years ago)
Javier Gorosabel at IAA-CSIC <>
J. Gorosabel, P. Kubanek , M.  Jelinek (IAA-CSIC), A. de Ugarte  
Postigo (ESO),
J. Aceituno (CAHA), report on behalf of a larger collaboration:

We have observed the field of GRB 090424 (Cannizzo et al., GCN 9223)  
the 1.23m telescope at Calar Alto. The afterglow is clearly detected  
in BVRI-bands.
On April 24.87 UT the afterglow showed a magnitude of R = 19.3 +/-  
0.1, as
compared to stars from the USNO-B1.0.

Calar Alto is operated jointly by MPIA and IAA-CSIC.

Further observations are ongoing.
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