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| == Observational history == | == Observational history == | ||
| The comet was discovered by ] on the early morning skies of 31 May 1930. It was the fifth new comet of the year and the second of three comets he discovered overall.{{r|s2a3}} | The comet was discovered by ] as a 9th-magnitude object on the early morning skies of 31 May 1930. It was the fifth new comet of the year and the second of three comets he discovered overall.{{r|s2a3}} He immediately informed the ] in ] after an exact position was determined about two days later.{{r|IAUC_285}} | ||
| == References == | == References == | ||
Revision as of 23:50, 11 December 2024
Non-periodic comet For other comet discoveries by Alexander F. I. Forbes, see 37P/Forbes and C/1932 Y1 (Dodwell–Forbes).| Discovery | |
|---|---|
| Discovered by | Alexander F. I. Forbes |
| Discovery site | Cape Town, South Africa |
| Discovery date | 31 May 1930 |
| Designations | |
| Alternative designations | 1930e 1930 V |
| Orbital characteristics | |
| Epoch | 6 June 1930 (JD 2426133.5) |
| Observation arc | 49 days |
| Number of observations | 54 |
| Perihelion | 1.1528 AU |
| Eccentricity | ~1.000 |
| Inclination | 97.0912° |
| Longitude of ascending node | 279.265° |
| Argument of periapsis | 320.966° |
| Last perihelion | 10 May 1930 |
| Physical characteristics | |
| Apparent magnitude | 9.0 (1930 apparition) |
Comet Forbes, formally designated as C/1930 L1, is a parabolic comet that was only observed through optical telescopes in the year 1930.
Observational history
The comet was discovered by Alexander F. I. Forbes as a 9th-magnitude object on the early morning skies of 31 May 1930. It was the fifth new comet of the year and the second of three comets he discovered overall. He immediately informed the Union Observatory in Johannesburg after an exact position was determined about two days later.
References
- ^ E. Strömgren (4 June 1930). "New Comet Forbes (1930e)". Central Bureau for Astronomical Telegrams. 285.
- "Comet Names and Designations". International Comet Quarterly. Retrieved 12 December 2024.
- "C/1930 L1 (Forbes) – JPL Small-Body Database Lookup". ssd.jpl.nasa.gov. Jet Propulsion Laboratory. Retrieved 12 December 2024.
- "Forbes, Mr. Alexander Forbes Irvine (astronomy)". s2a3.org.za. 15 May 1959. Retrieved 2 August 2019.
External links
- C/1930 L1 at the JPL Small-Body Database
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