C/1912 R1 (Gale)

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C/1912 R1 (Gale)
Comete Gale, 1912 a.jpg
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 date9 September 1912
Designations
1912 II, 1912a [3]
Orbital characteristics [4]
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) [5]
Inclination 79.810°
298.25°
Argument of
periapsis 		25.623°
Mean anomaly 0.0007°
Last perihelion5 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

  1. ↑ F. Quénisset (1912). "La Comète Gale, 1912 a". L'Astronomie (in French). 26: 500–503.
  2. ↑ W. F. Gale; R. Prager (1912). "Neuer Komet 1912 a (Gale)". Astronomische Nachrichten (in German). 192 (17): 291–292. doi:10.1002/asna.19121921707.
  3. ↑ "Comet Names and Designations". International Comet Quarterly. Retrieved 26 August 2025.
  4. ↑ "C/1912 R1 (Gale) – JPL Small-Body Database Lookup". ssd.jpl.nasa.gov. Jet Propulsion Laboratory . Retrieved 26 August 2025.
  5. ↑ 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 .
  6. ↑ 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.
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