1923 Osiris
| Discovery [1] | |
|---|---|
| Discovered by | Palomar–Leiden survey C. J. van Houten, I. van Houten-Groeneveld, Tom Gehrels |
| Discovery site | Palomar Obs. |
| Discovery date | 24 September 1960 |
| Designations | |
| MPC designation | 1923 Osiris |
|
Named after
|
Osiris[2] |
| 4011 P-L · 1964 TO2 1966 FR · 1974 KN 1974 KP · 1974 LE |
|
| main-belt | |
| Orbital characteristics [1] | |
| Epoch 27 June 2015 (JD 2457200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 61.43 yr (22,436 days) |
| Aphelion | 2.5908 AU |
| Perihelion | 2.2811 AU |
| 2.4359 AU | |
| Eccentricity | 0.0635 |
| 3.80 yr (1388.7 days) | |
| 61.318° | |
| Inclination | 4.9583° |
| 353.07° | |
| 106.62° | |
| Earth MOID | 1.3045 AU |
| Physical characteristics | |
| Dimensions | 13.1 km |
| 0.0591 | |
| C (SMASSII) | |
| 13.6 mag | |
1923 Osiris, also designated 4011 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.[3] Osiris is a C-type asteroid, about 13 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 Osiris, the Egyptian god of vegetation, of the waxing and waning Moon and of the annual flooding of the Nile.[2]
References
External links
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