{
  "createdOn": 1745327861019,
  "eventId": "GRB 250419A",
  "submittedHow": "web",
  "circularId": 40206,
  "bibcode": "2025GCN.40206....1M",
  "subject": "GRB 250419A: Optical Observations via Virtual Telescope Project",
  "submitter": "Gianluca Masi at Virtual Telescope Project <gianluca@bellatrixobservatory.org>",
  "body": "Gianluca Masi, Virtual Telescope Project (Italy), reports:\n\nWe observed the field of GRB 250419A (Wang et al., GCN 40168) with the 14” robotic unit available at the Virtual Telescope Project facility in Manciano, Italy, equipped with a KAF-3200E based CCD camera.\n\nWe collected 3, 300-second unfiltered exposures, then we averaged them. The central time of the resulting stack was 19 April, 21:07 UTC, that is about 18.6 hours after the burst.\n\nWe clearly detect the optical counterpart of GRB 250419A.\n\nThe position of the source is RA: 13 29 37.26; Decl.: +07 02 28.0 (J2000.0, mean residuals of 0.05”, reference stars from GaiaDR2) and the magnitude was estimated to be 19.3 (SNR=12, assuming R mags for the reference stars from GaiaDR2).\n\nThe image is available here:\nhttps://www.virtualtelescope.eu/2025/04/22/grb-250419a-detection-of-the-optical-afterglow-19-apr-2025/",
  "format": "text/plain"
}