3581 Alvarez
| Discovery | |
|---|---|
| Discovered by | Shoemaker, C. and Shoemaker, E. |
| Discovery site | Palomar |
| Discovery date | 23 April 1985 |
| Designations | |
| MPC designation | 3581 |
| 1985 HC | |
| Orbital characteristics[1] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 19674 days (53.86 yr) |
| Aphelion | 3.9051003 AU (584.19469 Gm) |
| Perihelion | 1.6456876 AU (246.19136 Gm) |
| 2.775394 AU (415.1930 Gm) | |
| Eccentricity | 0.4070436 |
| 4.62 yr (1688.8 d) | |
| 183.71561° | |
| 0° 12m 47.396s / day | |
| Inclination | 28.79773° |
| 217.59491° | |
| 107.42112° | |
| Earth MOID | 0.829262 AU (124.0558 Gm) |
| Jupiter MOID | 2.41618 AU (361.455 Gm) |
| Jupiter Tisserand parameter | 3.044 |
| Physical characteristics | |
| Dimensions | ~14km |
| 33.42 h (1.393 d)[2] | |
Sidereal rotation period | 33.42 h[1] |
| B[1] | |
| 12.2[1] | |
|
| |
3581 Alvarez (1985 HC) is a Mars-crossing asteroid discovered on April 23, 1985 by Shoemaker, C. and Shoemaker, E. at Palomar.[1] Based upon lightcurve data, it has a synodic rotation period of 33.42±0.02 hours with an amplitude variation of 0.06±0.02 in magnitude.[2] With a diameter of ~14 km, it is one of the largest Mars-crossing asteroids. However, due to the high inclination of its orbit, it never actually passes through the orbit of Mars since at perihelion it is well away from the plane of Mars' orbit.[3] The asteroid is named after planetary scientist Walter Alvarez and his Nobel-prize winning father, physicist Luis Alvarez.[4]
References
- 1 2 3 4 5 "JPL Small-Body Database Browser: 3581 Alvarez". Jet Propulsion Laboratory. Retrieved 14 April 2016.
- 1 2 Koff, Robert A. (June 2005), "Lightcurve photometry of asteroids 212 Medea, 517 Edith, 3581 Alvarez 5682 Beresford, and 5817 Robertfrazer", The Minor Planet Bulletin, 32 (2): 32−34, Bibcode:2005MPBu...32...32K.
- ↑ de Leon, Julia; et al. (October 2010), "Origin Of The Near-earth Asteroid Phaethon And The Geminids Meteor Shower", Bulletin of the American Astronomical Society, 42: 1058, Bibcode:2010DPS....42.1327D, doi:10.1051/0004-6361/200913609.
- ↑ Glen, William (1988), "Alvarez receives Astral Tribute", Eos, Transactions American Geophysical Union, 69 (52): 1688−1688, Bibcode:1988EOSTr..69.1688G, doi:10.1029/88EO01266.
External links
This article is issued from Wikipedia - version of the 9/10/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.