Exceptionally high optical state of Blazar PG 1553+113:
object date (UTC) mag comment -------------------------------------------------- PG 1553+113 20221225.284 13.88V active, OU, COAST PG 1553+113 20230116.210 13.74V active, OU, COAST PG 1553+113 20230204,147 13.59V active, 20cm-RC, Italy PG 1553+113 20230306,030 13.44V active, 30cm-RC, Italy --------------------------------------------------
PG 1553+113 = 1ES 1553+113 (RA: 15 55 43.0440 Dec: +11 11 24.3656; ICRS J2000). See also ATel #15915.
Stefan Karge (SKA) http://quasar.square7.ch/fqm/1553+113.html _______________________________________________
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