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 transients on file
Ages are counted from today, November 1, 2026, using each event's discovery date from the Transient Name Server. Transients without a published classification report yet are shown as unclassified.
| Designation | Type | Discovery Date ▼ | Redshift z | Peak Mag | Coordinates (J2000) | Host Galaxy | Spectra | Light Curve | Actions |
|---|---|---|---|---|---|---|---|---|---|
| AT2026ahrd | unclassified | 2026/11/01 | — | 18.579 | 05:55:28.752, -65:41:48.02 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahrc | unclassified | 2026/10/31 | — | 18.02 | 04:55:09.720, +69:57:26.30 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahqs | unclassified | 2026/10/31 | — | 18.611 | 09:12:18.902, +46:05:25.07 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahqe | unclassified | 2026/10/31 | — | 18.321 | 01:59:35.678, +40:05:43.47 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahqz | unclassified | 2026/10/31 | — | 18.843 | 19:47:42.615, +42:28:43.99 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahpc | unclassified | 2026/10/31 | — | 22.3761 | 02:16:52.487, -05:23:15.87 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahov | unclassified | 2026/10/31 | — | 22.8297 | 02:20:27.184, -04:51:09.02 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahou | unclassified | 2026/10/31 | — | 21.9098 | 02:24:07.788, -04:07:49.18 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahoq | unclassified | 2026/10/31 | — | 22.4371 | 02:20:02.133, -04:28:12.34 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahog | unclassified | 2026/10/31 | — | 21.9316 | 02:20:28.810, -04:47:51.53 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahpd | unclassified | 2026/10/31 | — | 20.2223 | 02:29:20.710, -04:03:47.12 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahoz | unclassified | 2026/10/31 | — | 22.5238 | 02:19:43.117, -05:38:48.79 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahoy | unclassified | 2026/10/31 | — | 23.46 | 02:24:00.157, -04:52:28.72 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahot | unclassified | 2026/10/31 | — | 22.6712 | 02:24:33.773, -06:26:49.79 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahol | unclassified | 2026/10/31 | — | 23.1012 | 02:19:06.430, -06:00:02.01 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahok | unclassified | 2026/10/31 | — | 21.6853 | 02:24:31.351, -05:57:02.91 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahoh | unclassified | 2026/10/31 | — | 22.9746 | 02:23:09.199, -05:45:56.18 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahoe | unclassified | 2026/10/31 | — | 18.05 | 03:10:22.213, -56:24:58.46 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahoj | unclassified | 2026/10/31 | — | 22.5208 | 02:23:51.691, -03:46:17.04 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahra | unclassified | 2026/10/31 | — | 19.182 | 02:16:53.822, -74:35:58.31 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahoi | unclassified | 2026/10/31 | — | 23.0376 | 04:15:45.175, -48:16:29.68 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahpa | unclassified | 2026/10/31 | — | 23.2192 | 04:10:50.048, -46:42:34.42 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahos | unclassified | 2026/10/31 | — | 22.8363 | 04:15:37.316, -46:28:55.46 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahop | unclassified | 2026/10/31 | — | 22.6635 | 04:15:33.806, -47:21:06.02 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahpb | unclassified | 2026/10/31 | — | 23.836 | 04:01:09.655, -48:13:07.32 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahor | unclassified | 2026/10/31 | — | 23.0289 | 03:59:46.270, -48:51:47.56 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahoo | unclassified | 2026/10/31 | — | 23.1709 | 03:56:23.869, -48:45:29.39 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahon | unclassified | 2026/10/31 | — | 22.7539 | 04:08:42.273, -49:38:08.06 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahom | unclassified | 2026/10/31 | — | 23.2331 | 03:55:43.560, -50:08:14.86 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahqy | unclassified | 2026/10/31 | — | 19.32 | 01:10:10.007, -82:59:52.94 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahof | unclassified | 2026/10/31 | — | 19.339 | 00:48:17.811, -62:52:32.83 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahoc | unclassified | 2026/10/31 | — | 18.922 | 00:32:02.264, -69:34:04.66 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahox | unclassified | 2026/10/31 | — | 22.5341 | 00:42:19.343, -44:58:46.97 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahow | unclassified | 2026/10/31 | — | 24.1408 | 00:33:20.148, -43:30:24.42 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahqu | unclassified | 2026/10/31 | — | 18.847 | 22:59:30.777, -45:01:46.35 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahod | unclassified | 2026/10/31 | — | 18.336 | 22:04:09.894, -67:22:34.64 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahob | unclassified | 2026/10/31 | — | 18.895 | 22:31:47.870, -48:12:27.32 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahpe | unclassified | 2026/10/31 | — | 21.7997 | 00:37:26.897, -45:52:27.55 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahqr | unclassified | 2026/10/31 | — | 18.813 | 19:38:22.504, -73:46:23.63 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahnz | unclassified | 2026/10/30 | — | 20.49 | 23:08:42.950, +03:58:36.51 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahqi | unclassified | 2026/10/30 | — | 19.86 | 22:52:28.965, +05:48:26.93 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahpf | unclassified | 2026/10/30 | — | 19.31 | 03:57:40.055, -59:44:29.45 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahqo | unclassified | 2026/10/30 | — | 20.04 | 01:20:41.974, +08:52:38.10 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahnn | unclassified | 2026/10/30 | — | 19.59 | 03:35:04.033, -05:37:54.69 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahqp | unclassified | 2026/10/30 | — | 19.76 | 02:12:03.686, -45:40:33.73 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahql | unclassified | 2026/10/30 | — | 20.06 | 02:54:49.571, -15:43:15.59 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahlr | unclassified | 2026/10/30 | — | 22.9322 | 03:29:13.916, -27:09:30.29 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahig | unclassified | 2026/10/30 | — | 22.2304 | 03:34:35.655, -26:22:27.39 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahib | unclassified | 2026/10/30 | — | 20.8507 | 03:26:01.860, -27:10:32.64 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahhw | unclassified | 2026/10/30 | — | 21.6295 | 03:29:33.546, -26:26:42.40 | — | — | — | 🔭 Pro 📖 Story |