Astronomy:162 Laurentia
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Short description: Main-belt asteroid
.png) A three-dimensional model of 162 Laurentia based on its light curve. | |
| Discovery | |
|---|---|
| Discovered by | Paul Henry and Prosper Henry |
| Discovery site | Paris |
| Discovery date | 21 April 1876 |
| Designations | |
| (162) Laurentia | |
| Pronunciation | /lɒˈrɛnʃiə/[1] |
| Named after | Joseph Jean Pierre Laurent |
| A876 HB | |
| Minor planet category | main belt |
| Orbital characteristics[2] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 113.88 yr (41596 d) |
| |{{{apsis}}}|helion}} | 3.5574 astronomical unit|AU (532.18 Gm) |
| |{{{apsis}}}|helion}} | 2.4779 AU (370.69 Gm) |
| 3.0177 AU (451.44 Gm) | |
| Eccentricity | 0.17887 |
| Orbital period | 5.24 yr (1914.7 d) |
| Mean anomaly | 300.020° |
| Mean motion | 0° 11m 16.872s / day |
| Inclination | 6.0977° |
| Longitude of ascending node | 35.539° |
| 116.277° | |
| Earth MOID | 1.49465 AU (223.596 Gm) |
| Jupiter MOID | 1.47116 AU (220.082 Gm) |
| TJupiter | 3.214 |
| Physical characteristics | |
| Dimensions | 99.10±2.6 km |
| Rotation period | 11.8686 h (0.49453 d)[2][3] |
| Geometric albedo | 0.0529±0.003 |
| C | |
| Absolute magnitude (H) | 8.83 |
162 Laurentia is a large and dark main-belt asteroid that was discovered by the French brothers Paul Henry and Prosper Henry on 21 April 1876, and named after Joseph Jean Pierre Laurent, an amateur astronomer who discovered asteroid 51 Nemausa.
An occultation by Laurentia was observed from Clive, Alberta on 21 November 1999.[citation needed]
Photometric observations of this asteroid from multiple observatories during 2007 gave a light curve with a period of 11.8686 ± 0.0004 hours and a brightness variation of 0.40 ± 0.05 in magnitude. This is in agreement with previous studies in 1994 and 2007.[3]
References
- ↑ Noah Webster (1884) A Practical Dictionary of the English Language
Laurentian (3rd ed.), Oxford University Press, September 2005, http://oed.com/search?searchType=dictionary&q=Laurentian (Subscription or UK public library membership required.) - ↑ 2.0 2.1 Yeomans, Donald K., "162 Laurentia", JPL Small-Body Database Browser (NASA Jet Propulsion Laboratory), https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=162, retrieved 12 May 2016.
- ↑ 3.0 3.1 Oey, Julian; Krajewski, Ric (June 2008), "Lightcurve Analysis of Asteroids from Kingsgrove and Other Collaborating Observatories in the First Half of 2007", The Minor Planet Bulletin 35 (2): pp. 47–48, Bibcode: 2008MPBu...35...47O.
External links
- 162 Laurentia at AstDyS-2, Asteroids—Dynamic Site
- 162 Laurentia at the JPL Small-Body Database
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