1743 Schmidt
| Discovery [1] | |
|---|---|
| Discovered by |
Palomar–Leiden survey C. J. van Houten, I. van Houten-Groeneveld and Tom Gehrels |
| Discovery site | Palomar Obs. |
| Discovery date | 24 September 1960 |
| Designations | |
| MPC designation | 1743 Schmidt |
Named after | Bernhard Schmidt [2] |
|
4109 P–L · 1931 BJ 1939 CN · 1943 EA 1947 GD · 1951 JU 1952 QD | |
| main-belt | |
| Orbital characteristics [1] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 85.17 yr (31110 days) |
| Aphelion | 2.8065 AU (419.85 Gm) |
| Perihelion | 2.1397 AU (320.09 Gm) |
| 2.4731 AU (369.97 Gm) | |
| Eccentricity | 0.13482 |
| 3.89 yr (1420.6 d) | |
| 258.01° | |
| 0° 15m 12.312s / day | |
| Inclination | 6.3571° |
| 189.64° | |
| 359.79° | |
| Earth MOID | 1.14003 AU (170.546 Gm) |
| Jupiter MOID | 2.15155 AU (321.867 Gm) |
| Jupiter Tisserand parameter | 3.462 |
| Physical characteristics | |
| Dimensions | 17.3 km |
Mean radius | 8.64 ± 0.7 km |
| 17.45 h (0.727 d) | |
| 0.0603 ± 0.011 | |
|
B–V = 0.620 U–B = 0.260 | |
| 12.48 | |
|
| |
1743 Schmidt, also designated 4109 P–L, is an asteroid from the asteroid belt, about 17 kilometers in diameter. It was discovered on September 24, 1960, by Cornelis van Houten and Ingrid van Houten-Groeneveld at Leiden, on photographic plates taken by Tom Gehrels at Palomar. The asteroid orbits the Sun at a distance of 2.1–2.8 AU once every 3.89 years (1,421 days). It has a rotation period of 17.5 hours and a geometric albedo of 0.06.[1]
The designation P–L stands for Palomar–Leiden, named after Palomar Observatory and Leiden Observatory, which collaborated on the fruitful Palomar–Leiden survey in the 1960s. Gehrels used Palomar's Samuel Oschin telescope (also known as the 48-inch Schmidt Telescope), and shipped the photographic plates to Cornelis van Houten and Ingrid van Houten-Groeneveld at Leiden Observatory. The trio are credited with several thousand asteroid discoveries.
The asteroid was named after Baltic German optician and astronomer Bernhard Schmidt (1879–1935), the inventor of the Schmidt camera.[2]
References
- 1 2 3 "JPL Small-Body Database Browser: 1743 Schmidt (4109 P-L)" (2015-09-15 last obs.). Jet Propulsion Laboratory. Retrieved 21 April 2016.
- 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1743) Schmidt. Springer Berlin Heidelberg. p. 138. ISBN 978-3-540-29925-7. Retrieved 22 August 2016.
External links
- Dictionary of Minor Planet Names, Google books
- 1743 Schmidt at the JPL Small-Body Database
- Biography – Bernhard Schmidt