1924 Horus
| Discovery [1] | |
|---|---|
| Discovered by |
Palomar–Leiden survey C. J. van Houten, I. van Houten-Groeneveld and Tom Gehrels |
| Discovery site | Palomar Obs., Leiden Obs |
| Discovery date | 24 September 1960 |
| Designations | |
| MPC designation | 1924 Horus |
Named after | Horus[2] |
|
4023 P–L · 1951 BD 1969 BA | |
| main-belt | |
| Orbital characteristics [1] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 55.45 yr (20253 days) |
| Aphelion | 2.6475 AU (396.06 Gm) |
| Perihelion | 2.0324 AU (304.04 Gm) |
| 2.3399 AU (350.04 Gm) | |
| Eccentricity | 0.13143 |
| 3.58 yr (1307.4 d) | |
| 38.259° | |
| 0° 16m 31.296s / day | |
| Inclination | 2.7298° |
| 350.27° | |
| 152.45° | |
| Earth MOID | 1.04544 AU (156.396 Gm) |
| Jupiter MOID | 2.36671 AU (354.055 Gm) |
| Jupiter Tisserand parameter | 3.552 |
| Physical characteristics | |
| Dimensions | 12.3 km |
Mean radius | 6.14 ± 0.35 km |
| 6.183 h (0.2576 d) | |
| 0.0888 ± 0.011 | |
| 13.5 | |
|
| |
1924 Horus, also designated 4023 P–L, is a main-belt asteroid discovered on September 24, 1960, by Cornelis Johannes van Houten and Ingrid van Houten-Groeneveld at Leiden, on photographic plates taken by Tom Gehrels at Palomar. On the same date, the trio of astronomers also discovered 1912 Anubis, 1923 Osiris and 5011 Ptah.[3]
Horus measures about 12 kilometers in diameter.[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 Johannes van Houten and Ingrid van Houten-Groeneveld at Leiden Observatory. The trio are credited with several thousand asteroid discoveries.
It is named after Horus, the falcon-headed king of the sky and the stars, and son of the Egyptian god Osiris.[2]
References
- 1 2 3 "JPL Small-Body Database Browser: 1924 Horus (4023 P-L)" (2015-03-28 last obs.). Jet Propulsion Laboratory. Retrieved 18 April 2016.
- 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1924) Horus. Springer Berlin Heidelberg. p. 154. ISBN 978-3-540-29925-7. Retrieved 23 August 2016.
- ↑ "New Names of Minor Planets" (PDF), Minor Planet Circular, Cambridge, Mass: Minor Planet Center (MPC 5013), 1 Nov 1979, ISSN 0736-6884
External links
- "1924 Horus (4023 P-L)". JPL Small-Body Database. Jet Propulsion Laboratory. SPK-ID: 2001924.
- 1924 Horus at the JPL Small-Body Database
