C/1893 U1 (Brooks)
Non-periodic comet
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Comet Brooks, formally designated as C/1893 U1, is a non-periodic comet that became visible through telescopes in late 1893. This comet might be the parent body of the Gamma Normids meteor shower (alongside C/1864 R1).[4][scientific citation needed]
1893 IV
Comet Brooks photographed by Edward E. Barnard from the Lick Observatory on 21 October 1893 | |
| Discovery[1] | |
|---|---|
| Discovered by | William Robert Brooks |
| Discovery site | Smith Observatory |
| Discovery date | 17 October 1893 |
| Designations | |
| 1893c[2] 1893 IV | |
| Orbital characteristics[3] | |
| Observation arc | 82 days |
| Number of observations | 153 |
| Aphelion | 461.73 AU |
| Perihelion | 0.812 AU |
| Semi-major axis | 231.27 AU |
| Eccentricity | 0.99649 |
| Orbital period | ~3,520 years |
| Max. orbital speed | 46.7 km/s |
| Inclination | 129.823° |
| 176.414° | |
| Argument of periapsis | 347.452° |
| Last perihelion | 19 September 1893 |
| TJupiter | –0.692 |
Discovery and observations
William Robert Brooks spotted a new comet on the morning of 17 October 1893 from his observatory in Geneva, New York.[1] At the time of discovery, it was a 7th-magnitude object located within the constellation Virgo. One day later, Edward E. Barnard made follow-up observations of the comet, noting it had a deformed tail about 4 degrees long.[1] Barnard continued his photographic sessions of the comet throughout November 1893, documenting its changes in structure.[5] It was last observed by Herbert C. Wilson on the evening of 26 January 1894.[6]
