Skip to main content
Testing. You are viewing the public testing version of GCN. For the production version, go to
New Announcement Feature, Code of Conduct, Circular Revisions. See news and announcements

GCN Circular 7990

GRB 080721 : Lulin Optical follow-ups
2008-07-21T13:04:35Z (16 years ago)
Yuji Urata at Saitama U <>
T-W Chen, L-C Huang, Y-T Chen (NCU)
K.Y Huang (ASIAA) and Y. Urata (Saitama U./ASIAA)
on behalf of the EAFON report;

"We have been monitoring the optical afterglow of GRB080721 (Marshall
et al. GCN Circ 7988) using the Lulin 1 m telescope after the twilight
(~ 96 min after the burst). Based on Lulin R-band data, the optical
afterglow is located at RA=14:57:55.835, Dec=-11:43:24.76 with less
than 1" position error.  The brightness of the optical afterglow at 98
min after the burst is R~18.1.

Further optical observation is in progress."
Looking for U.S. government information and services? Visit