7959 Alysecherri
| Discovery [1] | |
|---|---|
| Discovered by | C. W. Hergenrother |
| Discovery site | Catalina Stn. |
| Discovery date | 2 August 1994 |
| Designations | |
| MPC designation | 7959 Alysecherri |
|
Named after
|
Alyse Cherri Smith (wife of discoverer)[2] |
| 1994 PK | |
| main-belt (inner) · Hungaria [3] | |
| Orbital characteristics [1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 63.46 yr (23,178 days) |
| Aphelion | 2.1096 AU |
| Perihelion | 1.7762 AU |
| 1.9429 AU | |
| Eccentricity | 0.0858 |
| 2.71 yr (989 days) | |
| 23.7906° | |
| Inclination | 19.2619° |
| 235.7913° | |
| 100.5109° | |
| Earth MOID | 0.858248 AU (128.3921 Gm) |
| Jupiter MOID | 3.10899 AU (465.098 Gm) |
| Physical characteristics | |
| Dimensions | 3.05 km (calculated)[3] |
| 3.161±0.005 h[4] | |
| 0.30 (assumed)[3] | |
| E [3] | |
| 14.5[1][3] 15.09±0.63[5] |
|
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7959 Alysecherri, provisional designation 1994 PK, is a bright, stony Hungaria asteroid from the inner regions of the asteroid belt, approximately 3 kilometers in diameter. It was discovered on 2 August 1994, by American astronomer Carl Hergenrother at the U.S. Steward Observatory Catalina Station on Mt Bigelow near Tucson, Arizona.[6]
The E-type asteroid is a member of the Hungaria family, which form the innermost dense concentration of asteroids in the Solar System. It orbits the Sun at a distance of 1.8–2.1 AU once every 2 years and 9 months (989 days). Its orbit is tilted by 19° to the plane of the ecliptic and shows an eccentricity of 0.09.[1] The first precovery was taken at Palomar Observatory in 1951, extending the asteroid's observation arc by 43 years prior to its discovery.[6]
A rotational light-curve for this asteroid was obtained from photometric observations made by American astronomer Brian Warner at the U.S. Palmer Divide Observatory, Colorado, in July 2013. It gave a rotation period of 3.161±0.005 hours with a brightness amplitude of 0.13 in magnitude (U=2).[4] The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.30 and calculates a diameter of 3.05 kilometers.[3]
The minor planet is named after the maiden name of the discovering astronomer's wife, Alyse Cherri Smith.[2] Naming citation was published on 13 November 2008 (M.P.C. 64311).[7]
References
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<references />, or <references group="..." />External links
- The Palmer Divide Observatory: Tour given by Brian Warner on YouTube (time 4:03 min.)
- Asteroid Lightcurve Database (LCDB), query form (info)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (5001)-(10000) – Minor Planet Center
- 7959 Alysecherri at the JPL Small-Body Database
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