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Comet 23P/Brorsen-Metcalf


Named after Theodor Johan Christian Ambders Brorsen, who discovered the comet on July 20, 1847 at Altona Observatory, Germany, and Joel Hastings Metcalf.

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ClassificationHalley-type Comet, NEO

Osculating Orbital Elements
Epoch2447800,5
Semi major axis17,0692 AU
Period [Julian yrs]70,523 Julian years
Inclination19,334 °
Eccentricity0,9720
Lon. of ascending node311,585 °
Argument of perihelion129,611 °
Passage of perihelion1989-Sep-11.937433
Aphelion distance33,6597 AU
Mean anomaly0,266 °

Physical Data
Total magnitude (M1)7,8
Total magnitude slope (k1)8
Nuclear magnitude (M2)14
Nuclear magnitude slope (k2)5
Nuclear phase coefficient0,03

Discovery Circumstances
DiscovererTheodor Johan Christian Ambders Brorsen
Discovered1847-07-20

Data File
Data File Name23P_Brorsen_Metcalf.aed
Data File Date2006-12-22
Data File Size2714 kB
Covered Period1800,00 - 2100,00