C/1490 Y1
| Discovery[1] | |
|---|---|
| Discovery site | China |
| Discovery date | 31 December 1490 |
| Designations | |
| 1491 I[2] | |
| Orbital characteristics[3][4] | |
| Epoch | 26 December 1490 (JD 2265638.47) |
| Observation arc | 22 days |
| Number of observations | 3 |
| Aphelion | 5.320 AU |
| Perihelion | 0.769 AU |
| Semi-major axis | 3.040 AU |
| Eccentricity | 0.75000 |
| Orbital period | 5.30 years |
| Inclination | 70.200° |
| 283.00° | |
| Argument of periapsis | 164.00° |
| Last perihelion | 24 December 1490 (observed) |
| Next perihelion | Uncertain (Presumed periodic) |
| Physical characteristics[1] | |
| 5.4 (1491 apparition) | |
C/1490 Y1 is a comet that was recorded and observed across East Asia, particularly China and Korea, from December 1490 to February 1491. It is the parent body of the Quadrantids meteor shower.
Orbit
John Russell Hind,[5] Benjamin Peirce, and Ichiro Hasegawa[6] made the initial orbital calculations for the comet, which all resulted in a parabolic trajectory around the Sun.[1]
References
- ^ a b c G. W. Kronk; M. Meyer; D. A. J. Seargent (1999). Cometography: A Catalog of Comets. Vol. 1: Ancient–1799. Cambridge University Press. pp. 290–291. ISBN 978-0-521-58504-0.
- ^ "Comet Names and Designations". International Comet Quarterly. Retrieved 21 January 2025.
- ^ "C/1490 Y1 – JPL Small-Body Database Lookup". ssd.jpl.nasa.gov. Jet Propulsion Laboratory. Retrieved 14 November 2024.
- ^ K. W. Lee; H. J. Yang; M. G. Park (2009). "Orbital Elements of Comet C/1490 Y1 and the Quadrantid Shower" (PDF). Monthly Notices of the Royal Astronomical Society. 400 (3): 1389–1393. arXiv:0908.2547. Bibcode:2009MNRAS.400.1389L. doi:10.1111/j.1365-2966.2009.15535.x.
- ^ J. R. Hind (1846). "Schreiben des Herrn J. R. Hind an den Herausgeber". Astronomische Nachrichten (in German). 23 (25): 377–378. Bibcode:1846AN.....23..377H. doi:10.1002/asna.18460232502.
- ^ I. Hasegawa. "Orbits of Ancient and Medieval Comets". Publications of the Astronomical Society of Japan. 31: 257–270. Bibcode:1979PASJ...31..257H.
External links
- C/1490 Y1 at the JPL Small-Body Database