C/1912 R1 (Gale)
Gale's Comet photographed by Ferdinand Quénisset on 14–16 October 1912.[1] | |
| Discovery[2] | |
|---|---|
| Discovered by | Walter Frederick Gale |
| Discovery site | Sydney, Australia |
| Discovery date | 9 September 1912 |
| Designations | |
| 1912 II, 1912a[3] | |
| Orbital characteristics[5] | |
| Epoch | 19 November 1912 (JD 2419725.5) |
| Observation arc | 207 days |
| Number of observations | 30 |
| Perihelion | 0.716 AU |
| Eccentricity | 1.00045 |
| Orbital period | 3.3 million years (inbound)[4] |
| Inclination | 79.810° |
| 298.25° | |
| Argument of periapsis | 25.623° |
| Mean anomaly | 0.0007° |
| Last perihelion | 5 October 1912 |
| Earth MOID | 0.257 AU |
| Jupiter MOID | 1.523 AU |
| Physical characteristics[6] | |
| Comet total magnitude (M1) | 6.1 |
| 4.0 (1912 apparition) | |
C/1912 R1 (Gale) is a non-periodic comet that was observed between September 1912 and May 1913. It is the second of three comets discovered by Australian astronomer, Walter Frederick Gale.
References
- ^ F. Quénisset (1912). "La Comète Gale, 1912 a". L'Astronomie (in French). 26: 500–503.
- ^ W. F. Gale; R. Prager (1912). "Neuer Komet 1912 a (Gale)". Astronomische Nachrichten (in German). 192 (17): 291–292. doi:10.1002/asna.19121921707.
- ^ "Comet Names and Designations". International Comet Quarterly. Retrieved 26 August 2025.
- ^ B. G. Marsden; Z. Sekanina; E. Everhart. "New osculating orbits for 110 comets and analysis of original orbits for 200 comets". The Astronomical Journal. 83 (1): 64–71. Bibcode:1978AJ.....83...64M. doi:10.1086/112177.
- ^ "C/1912 R1 (Gale) – JPL Small-Body Database Lookup". ssd.jpl.nasa.gov. Jet Propulsion Laboratory. Retrieved 26 August 2025.
- ^ G. W. Kronk (2007). Cometography: A Catalog of Comets. Vol. 3: 1900–1932. Cambridge University Press. pp. 231–244. ISBN 978-0-521-58506-4.
External links
- C/1912 R1 at the JPL Small-Body Database