4 Vesta
 Composite greyscale image o Vesta taken bi the Dawn spacecraft. | |
| Discovery | |
|---|---|
| Discovered bi | Heinrich Wilhelm Olbers |
| Discovery date | 29 March 1807 |
| Designations | |
| Pronunciation | /ˈvɛstə/ |
Named after | Vesta |
| Main belt (Vesta faimily) | |
| Adjectives | Vestan, Vestian |
| Orbital chairactereestics[2] | |
| Epoch 2010-Jul-23 (JD 2455400.5) | |
| Aphelion | 2.571 AU (384.72 Gm) |
| Perihelion | 2.1526 AU (321.82 Gm) |
| 2.362 AU (353.268 Gm) | |
| Eccentricity | 0.08862 |
| 3.63 a (1325.85 d) | |
Average orbital speed | 19.34 km/s |
| 307.80° | |
| Inclination | 7.134° tae Ecliptic 5.56° tae Invariable plane[1] |
| 103.91° | |
| 149.84° | |
| Satellites | None |
| Proper orbital elements[3] | |
Proper semi-major axis | 2.3615126 AU |
Proper eccentricity | 0.0987580 |
Proper inclination | 6.3923416° |
Proper mean motion | 99.188833 deg / yr |
Proper orbital period | 3.62944 yr (1325.653 d) |
Precession o perihelion | 36.872897 arcsec / yr |
Precession of the ascending node | −39.597863 arcsec / yr |
| Pheesical chairacteristics | |
| Dimensions | (572.6 × 557.2 × 446.4) ± 0.2 km[4] 525.4±0.2 km (mean) |
| Mass | (2.59076±0.00001)×1020 kg[4] |
Mean density | 3.456 g/cm³[4] |
| 0.25 m/s2 0.025 g | |
| 0.36 km/s | |
| 0.2226 d (5.342 h)[2][5] | |
| Albedo | 0.423 (geometric)[6] |
| Temperatur | min: 85 K (−188 °C) max: 270 K (−3 °C)[7] |
Spectral teep | V-type asteroid[2][8] |
| 5.1[9] to 8.48 | |
| 3.20[2][6] | |
| 0.70″ tae 0.22″ | |
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Vesta, minor-planet designation 4 Vesta, is ane o the lairgest asteroids in the Solar Seestem, wi a mean diameter o 525 kilometre (326 mi).[4]
References[eedit | eedit soorce]
- ↑ "The MeanPlane (Invariable plane) of the Solar System passing through the barycenter". 3 Apryle 2009. Archived frae the original on 14 Mey 2009. Retrieved 10 Apryle 2009. (produced with Solex 10 Archived 2008-12-20 at the Wayback Machine written by Aldo Vitagliano; see also Invariable plane)
- ↑ a b c d "JPL Small-Body Database Browser: 4 Vesta". Retrieved 1 Juin 2008.
- ↑ "AstDyS-2 Vesta Synthetic Proper Orbital Elements". Department of Mathematics, University of Pisa, Italy. Retrieved 1 October 2011.
- ↑ a b c d Russell, C. T.; et al. (2012). "Dawn at Vesta: Testing the Protoplanetary Paradigm". Science. 336 (6082): 684. Bibcode:2012Sci...336..684R. doi:10.1126/science.1219381. Explicit use of et al. in:
|author=(help) - ↑ Harris, A. W.; Warner, B. D.; Pravec, P.; (Eds.) (2006). "Asteroid Lightcurve Derived Data. EAR-A-5-DDR-DERIVED-LIGHTCURVE-V8.0". NASA Planetary Data System. Archived frae the original on 9 Apryle 2009. Retrieved 26 December 2013.CS1 maint: multiple names: authors leet (link) CS1 maint: extra text: authors leet (link) CS1 maint: BOT: original-url status unknown (link)
- ↑ a b Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (2004). "Infra-Red Astronomy Satellite (IRAS) Minor Planet Survey. IRAS-A-FPA-3-RDR-IMPS-V6.0". NASA Planetary Data System. Archived frae the original on 11 Mairch 2007. Retrieved 15 Mairch 2007.CS1 maint: multiple names: authors leet (link)
- ↑ Mueller, T. G.; Metcalfe, L. (2001). "ISO and Asteroids" (PDF). European Space Agency (ESA) bulletin. 108: 38.
- ↑ Neese, C.; Ed. (2005). "Asteroid Taxonomy EAR-A-5-DDR-TAXONOMY-V5.0". NASA Planetary Data System. Archived frae the original on 5 September 2006. Retrieved 25 December 2013.
- ↑ Menzel, Donald H.; and Pasachoff, Jay M. (1983). A Field Guide to the Stars and Planets (2nd ed.). Boston, MA: Houghton Mifflin. p. 391. ISBN 0-395-34835-8.CS1 maint: multiple names: authors leet (link)
