97P/Metcalf–Brewington
97P/Metcalf–Brewington is a periodic Jupiter-family comet originally discovered by Joel H. Metcalf in 1906 but subsequently lost. A new observation in 1991 by Howard J. Brewington was matched to the 1906 sighting; the orbit was computed and the comet was observed again on its returns to perihelion in 2001, 2011, and 2022.
| Discovery | |
|---|---|
| Discovered by | Joel H. Metcalf Howard J. Brewington |
| Discovery date | 10 October 1906 |
| Designations | |
Alternative designations | 1906 V2, 1991 A1 |
| Orbital characteristics | |
| Epoch | 27 August 2011 |
| Number of observations | 139 |
| Aphelion | 7.009 AU |
| Perihelion | 2.597 AU |
| Semi-major axis | 4.803 AU |
| Eccentricity | 0.4593 |
| Orbital period | 10.5 yr |
| Inclination | 17.886° |
| Last perihelion | 15 February 2022 20 August 2011 |
| Next perihelion | 2032-Jul-19 |
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