C/2025 F2 (SWAN)
< C
Comet C/2025 F2 (SWAN) photographed from New Mexico on 8 April 2025 | |
| Discovery | |
|---|---|
| Discovered by | Michael Mattiazzo, Vladimir Bezugly |
| Discovery site | SOHO (SWAN) |
| Discovery date | 29 March 2025 |
| Designations | |
| SWAN25F | |
| Orbital characteristics | |
| Epoch | 28 March 2025 (JD 2460762.5) |
| Observation arc | 223 days |
| Earliest precovery date | 3 September 2024 |
| Number of observations | 352 |
| Aphelion | ~3,750 AU (inbound) ~33,300 AU (outbound) |
| Perihelion | 0.333 AU |
| Eccentricity | 0.99999398 |
| Orbital period | ~81,200 years (inbound) ~2,146,000 years (outbound) |
| Inclination | 90.371° |
| 329.84° | |
| Argument of periapsis | 153.85° |
| Last perihelion | 1 May 2025 |
| TJupiter | –0.004 |
| Earth MOID | 0.628 AU |
| Jupiter MOID | 0.402 AU |
| Physical characteristics | |
| Comet total magnitude (M1) | 12.3 |
| 7.5 (2025 apparition) | |
C/2025 F2 (SWAN) is a comet that was discovered from images taken by SOHO's SWAN instrument in late March 2025. The comet was expected to reach a peak magnitude of about 5 in early May 2025, however its brightening stagnated in mid April, indicating the comet possibly disintegrated before reaching perihelion.