Sky Alerts

Rubin Observatory (LSST)

170019696449421420

Supernova 93% confidence

An exploding star, brightening over days and fading over weeks.

Open in the ALeRCE explorer ↗

First detected
8 months ago
Last detected
2 days ago
Detections
8
plus 53 forced measurements
Position (J2000)
04:17:50.10 -46:11:38.5
64.45874°, -46.19404°

Light curve

0.01.02.03.0Mar 1Apr 20Jun 9Jul 29Sep 17Nov 62026-02-17 02:21 UTC · r band · 1.4 ± 0.2 µJy2026-02-19 02:14 UTC · r band · 1.2 ± 0.2 µJy2026-02-19 02:25 UTC · r band · 1.3 ± 0.2 µJy2026-02-20 03:37 UTC · r band · 1.4 ± 0.2 µJy2026-02-24 02:04 UTC · r band · 0.9 ± 0.2 µJy2026-02-24 02:10 UTC · r band · 1.1 ± 0.2 µJy2026-02-24 02:15 UTC · r band · 1.0 ± 0.2 µJy2026-10-31 04:27 UTC · r band · 2.5 ± 0.2 µJy
Difference flux (µJy). Times in UTC. Hover a point for its value.
Data table (8 points)
Time (UTC)MJDBandFlux (µJy)Error
2026-02-17 02:21 UTC61088.0985r1.40.2
2026-02-19 02:14 UTC61090.0932r1.20.2
2026-02-19 02:25 UTC61090.1012r1.30.2
2026-02-20 03:37 UTC61091.1510r1.40.2
2026-02-24 02:04 UTC61095.0868r0.90.2
2026-02-24 02:10 UTC61095.0905r1.10.2
2026-02-24 02:15 UTC61095.0939r1.00.2
2026-10-31 04:27 UTC61344.1856r2.50.2

Classification

stamp_classifier_rubin_beta_20260421 · 202

  • Supernova93%
  • Active galactic nucleus3%
  • Artifact3%

stamp_classifier_rubin_beta · 201

  • Artifact71%
  • Active galactic nucleus19%
  • Supernova6%
More classifiers and versions (1)

stamp_classifier_rubin_beta_20260421 · 2.0.2

  • Supernova93%

Where in the sky

-60°-30°0°+30°+60°0h4h8h12h16h20h24hRA 04:17:50.10, Dec -46:11:38.5
Whole sky, right ascension (hours) across, declination (degrees) up. The dashed curve is the plane of the Milky Way.