X/1106 C1
| Discovery | |
|---|---|
| Discovery date | 2–16 February 1106 |
| Orbital characteristics | |
| Epoch | 26 February 1106 (JD 2125080.5) |
| Observation arc | 15–70 days |
| Orbit type | Kreutz sungrazer |
| Perihelion | 0.005 AU (1.1 R☉) |
| Eccentricity | 0.99994 |
| Orbital period | ~748.04 years |
| Inclination | 144.54° |
| 5.8213° | |
| Argument of periapsis | 84.689° |
| Last perihelion | 26 January 1106 |
| Next perihelion | 27 February 1843 |
X/1106 C1, also known as the Great Comet of 1106, was a comet that appeared on 2 February 1106, and was observed around the world from the beginning of February through to mid-March. It was recorded by astronomers in Wales, England, Japan, Korea, China, continental Europe, and Egypt.
It was observed to split into many pieces, forming the Great Comet of 1843 and several other small sungrazing comets observed by the SOHO space telescope. It is a member of the Kreutz Group, known as Subfragment I, a split from an earlier large (~150 km) comet that progressively fragmented under the influence of the Sun, possibly the Great Comet of 371 BC.