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 2, 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 |
|---|---|---|---|---|---|---|---|---|---|
| AT2026ahti | unclassified | 2026/11/01 | — | 18.69 | 06:51:38.225, -37:28:54.06 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahtu | unclassified | 2026/11/01 | — | 19.16 | 06:32:22.959, -51:37:42.20 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahte | unclassified | 2026/11/01 | — | 19.59 | 05:53:37.622, -28:01:04.72 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahtc | unclassified | 2026/11/01 | — | 20.16 | 05:08:19.823, -25:52:11.33 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahtf | unclassified | 2026/11/01 | — | 20.05 | 01:33:05.570, -59:57:26.37 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahtv | unclassified | 2026/11/01 | — | 19.67 | 04:47:00.068, -19:58:20.45 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahtg | unclassified | 2026/11/01 | — | 19.25 | 03:32:57.291, -22:28:28.81 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahtx | unclassified | 2026/11/01 | — | 19.59 | 03:22:28.489, -52:26:29.95 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahth | unclassified | 2026/11/01 | — | 19.96 | 02:45:18.308, -46:19:37.78 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahsn | unclassified | 2026/11/01 | — | 18.71 | 00:12:40.162, -00:02:12.55 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahuc | unclassified | 2026/11/01 | — | 19.59 | 03:46:51.463, -09:31:44.93 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahue | unclassified | 2026/11/01 | — | 20.93 | 03:17:34.009, -15:08:42.03 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahud | unclassified | 2026/11/01 | — | 20.6 | 03:07:09.087, -14:17:36.46 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahtm | unclassified | 2026/11/01 | — | 21.13 | 23:40:42.261, +14:27:15.77 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahtp | unclassified | 2026/11/01 | — | 21.48 | 23:21:35.861, +10:21:47.54 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahtl | unclassified | 2026/11/01 | — | 20.91 | 23:25:18.231, +10:59:29.18 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahtq | unclassified | 2026/11/01 | — | 20.39 | 23:08:28.962, +09:51:14.35 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahts | unclassified | 2026/11/01 | — | 18.892 | 22:50:21.074, +53:07:15.45 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahtr | unclassified | 2026/11/01 | — | 21.33 | 01:45:44.109, +20:53:37.41 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahtn | unclassified | 2026/11/01 | — | 19.87 | 01:19:35.661, +17:01:28.51 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahto | unclassified | 2026/11/01 | — | 20.54 | 01:21:01.434, +25:30:32.91 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahrr | unclassified | 2026/11/01 | — | 19.122 | 18:17:38.165, +48:43:27.46 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahrx | unclassified | 2026/11/01 | — | 19.113 | 00:17:22.240, +42:36:06.90 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahrd | unclassified | 2026/11/01 | — | 18.579 | 05:55:28.752, -65:41:48.02 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahrp | unclassified | 2026/11/01 | — | 18.853 | 04:39:24.729, -81:27:44.87 | — | — | — | 🔭 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 |
| AT2026ahry | unclassified | 2026/10/31 | — | 18.194 | 23:08:04.504, +47:41:25.06 | — | — | — | 🔭 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 |
| AT2026ahrv | unclassified | 2026/10/31 | — | 19.64 | 21:28:27.436, -03:22:41.54 | — | — | — | 🔭 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 |
| AT2026ahrw | unclassified | 2026/10/31 | — | 19.61 | 21:30:58.053, -07:05:07.34 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahru | unclassified | 2026/10/31 | — | 20.33 | 21:23:37.892, -05:55:30.79 | — | — | — | 🔭 Pro 📖 Story |
| AT2026ahrt | unclassified | 2026/10/31 | — | 20.68 | 21:13:42.216, -03:06:49.17 | — | — | — | 🔭 Pro 📖 Story |
| SN2026ahoe | SN Ia | 2026/10/31 | 0.105 | 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 |