1719 Jens
| Discovery [1] | |
|---|---|
| Discovered by | K. Reinmuth |
| Discovery site | Heidelberg Obs. |
| Discovery date | 17 February 1950 |
| Designations | |
| MPC designation | 1719 Jens |
|
Named after
|
Jens (grandson of discoverer)[2] |
| 1950 DP · 1939 PP 1939 TD · 1941 BB 1948 RQ · 1948 RS1 1948 TS1 · 1961 TZ1 A922 SC |
|
| main-belt · (middle) [3] | |
| Orbital characteristics [1] | |
| Epoch 27 June 2015 (JD 2457200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 66.66 yr (24,348 days) |
| Aphelion | 3.2465 AU |
| Perihelion | 2.0694 AU |
| 2.6579 AU | |
| Eccentricity | 0.2214 |
| 4.33 yr (1,583 days) | |
| 139.41° | |
| Inclination | 14.284° |
| 323.46° | |
| 58.128° | |
| Physical characteristics | |
| Dimensions | 18.93 km[4] 19.914±0.070 km[5] 19.77±0.76 km[6] 18.80 km (derived)[3] |
| 5.87 h[7] 5.867±0.005 h[8] 5.873±0.005 h[9] 5.87016±0.00005 h[10] |
|
| 0.1489[4] 0.1348±0.0306[5] 0.137±0.021[6] 0.1145 (derived)[3] |
|
| S [3] | |
| 11.6 | |
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1719 Jens, provisional designation 1950 DP, is a stony asteroid from the middle region of the asteroid belt, about 19 kilometres (12 miles) in diameter. It was discovered by German astronomer Karl Reinmuth at Heidelberg Observatory on 17 February 1950.[11]
The S-type asteroid orbits the Sun at a distance of 2.1–3.2 AU once every 4 years and 4 months (1,583 days). Its orbit shows an eccentricity of 0.22 and is tilted by 14 degrees to the plane of the ecliptic. It has a rotation period of 5.9 hours and an albedo of about 0.13, according to surveys carried out by IRAS, WISE and NEOWISE.[4][5][6]
The minor planet was named by the discoverer after his grandson, Jens. Reinmuth also named the consecutively numbered asteroid, 1720 Niels, after one of his grandsons.[2]
In 2010, NASA's WISE satellite photographed the asteroid passing in front of the Tadpole Nebula.[12]
References
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<references />, or <references group="..." />External links
- 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 (1)-(5000) – Minor Planet Center
- 1719 Jens at the JPL Small-Body Database
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