C/1925 F1 (Shajn–Comas Solá)

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C/1925 F1 (Shajn–Comas Sola)
Comet Shajn–Comas Sola photographed by George van Biesbroeck from the Yerkes Observatory on 26 March 1925
Discovery
Discovered byGrigory Shajn
Josep Comas Solá
Discovery siteSimeis Observatory, USSR
Fabra Observatory, Spain
Discovery date22–23 March 1925
Designations
1925a
1925 VI
Orbital characteristics
Epoch7 September 1925 (JD 2424400.5)
Observation arc711 days (1.95 years)
Number of
observations
59
Perihelion4.181 AU
Eccentricity1.002432
Orbital period4.8 million years (inbound)
691,000 years (outbound)
Inclination146.71°
358.54°
Argument of
periapsis
205.76°
Last perihelion6 September 1925
Physical characteristics
Comet total
magnitude
(M1)
2.5
10.8
(1925 apparition)

Comet Shajn–Comas Solá, formal designation C/1925 F1, is a hyperbolic comet co-discovered by Grigory Shajn and Josep Comas Solá in 1925. At the time, it was the comet with the most distant known perihelion distance (until the discovery of 29P/Schwassmann–Wachmann two years later), which enabled astronomers to continue observing it until March 1927.