The Open Supernova Catalog
A community-curated astronomical repository indexing 110,222+ explosive transients, multi-band optical light curves, and calibrated spectra from 1000 AD to 2026+.
Total Transients
110,222
Historical & modern survey events
Calibrated Spectra
20,965
Multi-epoch spectroscopic time series
Photometric Epochs
673,154
Multi-band UV, optical & NIR observations
API & Integrations
REST + MCP
Zero-token API, IVOA cone search & AI tools
Newest classified supernovae on file
Ages are counted from today, October 23, 2026, using each event's discovery date from the Transient Name Server.
| Designation | Type | Discovery Date ▼ | Redshift z | Peak Mag | Coordinates (J2000) | Host Galaxy | Spectra | Light Curve | Actions |
|---|---|---|---|---|---|---|---|---|---|
| SN2026afsg | SN Ib/c | 2026/10/18 | — | — | 12:02:02.958, +29:50:40.95 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026afrr | SN Ia | 2026/10/18 | — | — | 05:32:15.081, -19:15:08.28 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026afrp | SN Ia | 2026/10/18 | — | — | 04:50:52.231, -04:53:35.15 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026afsw | SN Ia | 2026/10/17 | — | — | 00:58:27.412, -22:03:24.97 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026afqd | SN II | 2026/10/17 | — | — | 00:25:27.859, +20:14:37.33 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026afoj | SN Ia | 2026/10/15 | — | — | 03:17:50.209, +01:27:17.66 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026afou | SN Ia | 2026/10/15 | — | — | 00:50:25.403, +37:41:43.04 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026afmu | SN Ia-91T-like | 2026/10/14 | — | — | 05:53:03.666, +53:15:36.71 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026afod | SN Ia | 2026/10/14 | — | — | 08:45:48.523, +10:23:00.30 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026afnj | SN Ia | 2026/10/14 | — | — | 02:48:41.104, +14:18:22.41 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026afnk | SN Ia | 2026/10/14 | — | — | 02:59:39.266, +28:30:31.38 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026afkh | SN Ia | 2026/10/14 | — | — | 23:11:35.646, +07:44:08.60 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026afqs | SN Ia | 2026/10/13 | — | — | 07:41:25.037, +21:02:16.50 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026afhu | SN Ia | 2026/10/12 | — | — | 01:35:18.295, +36:25:34.17 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026afgd | SN Ia | 2026/10/11 | — | — | 21:52:12.906, +03:17:49.76 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026afda | SN Ia | 2026/10/11 | — | — | 08:18:01.183, +09:00:57.20 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026afcx | SN Ia-91bg-like | 2026/10/10 | — | — | 09:16:42.988, +18:57:11.70 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026afco | SN Ia | 2026/10/10 | — | — | 03:32:35.944, +05:12:42.26 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026afjj | SN Ia | 2026/10/10 | — | — | 23:28:14.693, -10:41:23.42 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026aexm | SN Ia | 2026/10/09 | — | — | 10:52:30.883, +07:13:17.56 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026aexj | SN IIn | 2026/10/08 | — | — | 09:05:35.435, -15:53:12.22 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026aeyt | SN Ia | 2026/10/08 | — | — | 06:33:32.015, +24:22:19.91 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026aett | SN Ia | 2026/10/08 | — | — | 00:24:47.391, -02:59:42.80 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026aesj | SN Ia | 2026/10/07 | — | — | 07:48:40.024, +54:36:43.42 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026aete | SN Ia | 2026/10/07 | — | — | 06:50:36.388, +58:36:08.80 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026aert | SN Ib | 2026/10/07 | — | — | 10:30:53.193, +51:19:52.35 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026aetb | SN Ia | 2026/10/07 | — | — | 06:41:51.189, +21:53:58.11 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026aeuv | SN Ia | 2026/10/07 | — | — | 05:11:09.700, -03:13:37.59 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026aerw | SN Ia | 2026/10/07 | — | — | 01:12:35.630, +10:42:44.21 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026aepm | SN Ia | 2026/10/07 | — | — | 17:38:32.221, +71:09:59.62 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026aeow | SN Ia | 2026/10/06 | — | — | 02:18:57.851, -15:13:38.52 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026aepk | SN Iax[02cx-like] | 2026/10/06 | — | — | 02:09:55.997, +10:45:36.17 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026aela | SN Ia | 2026/10/05 | — | — | 08:37:54.628, -01:50:26.45 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026aejv | SN II | 2026/10/05 | — | — | 09:20:21.334, -07:52:54.85 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026afqb | SN Ia | 2026/10/05 | — | — | 04:47:31.739, +04:21:53.97 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026aelz | SN IIn | 2026/10/05 | — | — | 02:17:10.649, +14:45:37.17 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026aeiu | SN Ia | 2026/10/05 | — | — | 21:55:44.220, -12:09:11.07 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026aeji | SN Ia | 2026/10/05 | — | — | 20:16:26.193, -01:01:19.83 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026aeiv | SN Ia-91bg-like | 2026/10/05 | — | — | 03:16:41.828, +80:48:09.12 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026aegp | SN Ic-BL | 2026/10/04 | — | — | 21:16:14.717, -10:43:41.06 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026aedl | SN Ia | 2026/10/03 | — | — | 01:57:48.240, -33:14:43.39 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026aejn | SN Ia | 2026/10/03 | — | — | 05:03:35.090, +23:07:45.23 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026aejo | SN Ia | 2026/10/03 | — | — | 04:31:45.888, -13:04:49.78 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026aelo | SN Ia | 2026/10/03 | — | — | 01:40:27.497, +08:23:35.53 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026aegs | SN Ia | 2026/10/03 | — | — | 03:45:48.340, +18:29:25.03 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026aeoj | SLSN-I | 2026/10/02 | — | — | 00:59:02.263, +36:21:42.37 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026aedv | SN Ia | 2026/10/02 | — | — | 02:25:05.080, +22:13:11.62 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026aecv | SN Ia | 2026/10/02 | — | — | 01:23:13.621, -03:07:49.80 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026adyr | SN Ia | 2026/10/02 | — | — | 03:07:09.244, +20:57:58.91 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| SN2026adyp | SN Ia | 2026/10/02 | — | — | 07:57:37.025, +37:54:49.27 | — | — | 📈 1 | 🔭 Pro 📖 Story |