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, October 27, 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 |
|---|---|---|---|---|---|---|---|---|---|
| AT2026agvz | unclassified | 2026/10/26 | — | — | 11:22:36.528, -02:04:40.43 | — | — | 📈 3 | 🔭 Pro 📖 Story |
| AT2026agwi | unclassified | 2026/10/26 | — | — | 07:04:55.663, +18:27:52.08 | — | — | 📈 5 | 🔭 Pro 📖 Story |
| AT2026agwc | unclassified | 2026/10/26 | — | — | 08:39:11.689, -03:58:16.60 | — | — | 📈 3 | 🔭 Pro 📖 Story |
| AT2026agwb | unclassified | 2026/10/26 | — | — | 00:25:45.462, -33:21:07.07 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| AT2026agvp | unclassified | 2026/10/26 | — | — | 22:14:49.273, +74:14:38.36 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| AT2026agwh | unclassified | 2026/10/26 | — | — | 20:38:54.560, +05:24:33.13 | — | — | 📈 2 | 🔭 Pro 📖 Story |
| AT2026agvq | unclassified | 2026/10/26 | — | — | 19:52:08.306, +56:39:12.55 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| AT2026agwg | unclassified | 2026/10/26 | — | — | 21:17:34.092, -10:32:35.91 | — | — | 📈 4 | 🔭 Pro 📖 Story |
| AT2026agwf | unclassified | 2026/10/26 | — | — | 21:54:57.109, -19:25:26.45 | — | — | 📈 2 | 🔭 Pro 📖 Story |
| SN2026agvr | Ia | 2026/10/26 | — | — | 22:23:52.642, -00:52:13.87 | — | ✨ 1 | 📈 3 | 🔭 Pro 📖 Story |
| AT2026agwa | unclassified | 2026/10/25 | — | — | 12:04:23.662, +01:53:26.33 | — | — | 📈 5 | 🔭 Pro 📖 Story |
| AT2026agvx | unclassified | 2026/10/25 | — | — | 10:37:15.766, +05:40:47.64 | — | — | 📈 3 | 🔭 Pro 📖 Story |
| AT2026agvn | unclassified | 2026/10/25 | — | — | 11:05:40.406, +29:08:42.54 | — | — | 📈 3 | 🔭 Pro 📖 Story |
| AT2026agvu | unclassified | 2026/10/25 | — | — | 08:02:33.644, -13:08:16.71 | — | — | 📈 4 | 🔭 Pro 📖 Story |
| AT2026agvc | unclassified | 2026/10/25 | — | — | 07:20:59.752, +36:44:56.73 | — | — | 📈 3 | 🔭 Pro 📖 Story |
| AT2026agve | unclassified | 2026/10/25 | — | — | 08:40:13.303, +13:17:56.16 | — | — | 📈 5 | 🔭 Pro 📖 Story |
| AT2026agvs | unclassified | 2026/10/25 | — | — | 05:01:33.208, -16:09:58.87 | — | — | 📈 5 | 🔭 Pro 📖 Story |
| AT2026aguu | unclassified | 2026/10/25 | — | — | 05:01:47.075, -15:58:57.50 | — | — | 📈 4 | 🔭 Pro 📖 Story |
| AT2026agub | unclassified | 2026/10/25 | — | — | 01:52:22.081, +35:47:23.75 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| AT2026aguc | unclassified | 2026/10/25 | — | — | 04:38:04.121, -10:52:19.53 | — | — | 📈 4 | 🔭 Pro 📖 Story |
| AT2026aguv | unclassified | 2026/10/25 | — | — | 07:37:04.549, +65:35:42.56 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| AT2026aguw | unclassified | 2026/10/25 | — | — | 18:47:35.616, -72:49:53.13 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| AT2026agtx | unclassified | 2026/10/25 | — | — | 18:55:45.091, -46:46:51.44 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| AT2026agvb | unclassified | 2026/10/24 | — | — | 10:42:33.057, +14:56:35.10 | — | — | 📈 5 | 🔭 Pro 📖 Story |
| AT2026agsp | unclassified | 2026/10/24 | — | — | 10:15:42.715, +00:09:58.31 | — | — | 📈 5 | 🔭 Pro 📖 Story |
| AT2026agsr | unclassified | 2026/10/24 | — | — | 09:55:44.844, -03:58:44.73 | — | — | 📈 5 | 🔭 Pro 📖 Story |
| AT2026agux | unclassified | 2026/10/24 | — | — | 10:16:22.360, +16:25:13.87 | — | — | 📈 4 | 🔭 Pro 📖 Story |
| AT2026agsq | unclassified | 2026/10/24 | — | — | 09:49:55.009, +07:17:46.66 | — | — | 📈 3 | 🔭 Pro 📖 Story |
| AT2026aguy | unclassified | 2026/10/24 | — | — | 11:00:53.296, +38:06:21.51 | — | — | 📈 2 | 🔭 Pro 📖 Story |
| AT2026agss | unclassified | 2026/10/24 | — | — | 09:12:01.879, +27:28:51.17 | — | — | 📈 5 | 🔭 Pro 📖 Story |
| AT2026agvd | unclassified | 2026/10/24 | — | — | 07:36:09.331, +26:19:47.76 | — | — | 📈 5 | 🔭 Pro 📖 Story |
| AT2026agsn | unclassified | 2026/10/24 | — | — | 07:35:40.554, +27:54:45.73 | — | — | 📈 8 | 🔭 Pro 📖 Story |
| AT2026agty | unclassified | 2026/10/24 | — | — | 03:50:33.495, +06:59:58.85 | — | — | 📈 4 | 🔭 Pro 📖 Story |
| AT2026agua | unclassified | 2026/10/24 | — | — | 05:05:54.591, +10:10:52.74 | — | — | 📈 6 | 🔭 Pro 📖 Story |
| AT2026agpu | unclassified | 2026/10/24 | — | — | 09:47:33.109, +21:43:49.58 | — | — | 📈 3 | 🔭 Pro 📖 Story |
| SN2026agsu | Ia | 2026/10/24 | — | — | 21:27:22.404, -18:15:42.15 | — | ✨ 2 | 📈 4 | 🔭 Pro 📖 Story |
| AT2026agsx | unclassified | 2026/10/24 | — | — | 09:15:54.065, +11:17:21.70 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| AT2026agpw | unclassified | 2026/10/24 | — | — | 09:10:46.999, +06:28:26.87 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| AT2026agpv | unclassified | 2026/10/23 | — | — | 01:39:24.701, -09:23:57.94 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| AT2026agst | unclassified | 2026/10/23 | — | — | 01:46:10.993, -07:54:18.85 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| AT2026agpr | unclassified | 2026/10/23 | — | — | 09:54:32.616, -30:51:01.44 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| AT2026agpp | unclassified | 2026/10/23 | — | — | 20:20:30.477, +06:01:38.10 | — | — | 📈 2 | 🔭 Pro 📖 Story |
| AT2026agpq | unclassified | 2026/10/23 | — | — | 21:14:04.760, +05:53:46.14 | — | — | 📈 4 | 🔭 Pro 📖 Story |
| AT2026agpm | unclassified | 2026/10/23 | — | — | 15:07:24.792, -19:42:36.72 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| AT2026agpl | unclassified | 2026/10/23 | — | — | 10:52:52.460, -47:25:06.70 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| AT2026agpk | unclassified | 2026/10/23 | — | — | 07:22:08.658, +00:27:44.69 | — | — | 📈 5 | 🔭 Pro 📖 Story |
| AT2026agqs | unclassified | 2026/10/22 | — | — | 07:05:17.970, +20:54:44.68 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| AT2026agrv | unclassified | 2026/10/22 | — | — | 08:38:17.560, +36:36:34.04 | — | — | 📈 5 | 🔭 Pro 📖 Story |
| AT2026agtj | unclassified | 2026/10/22 | — | — | 08:52:44.385, +17:10:04.29 | — | — | 📈 1 | 🔭 Pro 📖 Story |
| AT2026agtd | unclassified | 2026/10/22 | — | — | 09:07:20.356, +11:37:30.85 | — | — | 📈 1 | 🔭 Pro 📖 Story |