19 Fortuna
 Fortuna centered abuin the Crab Nebula | |
| Discovery | |
|---|---|
| Discovered bi | John Russell Hind |
| Discovery date | August 22, 1852 |
| Designations | |
| Pronunciation | /fɔːrˈtjuːnə/ |
Named after | Fortūna |
| A902 UG | |
| Main belt | |
| Orbital chairactereestics[1] | |
| Epoch October 22, 2004 (JD 2453300.5) | |
| Aphelion | 2.831 AU (423.443 Gm) |
| Perihelion | 2.052 AU (307.028 Gm) |
| 2.441 AU (365.235 Gm) | |
| Eccentricity | 0.159 |
| 3.81 a (1393.378 d) | |
Average orbital speed | 18.94 km/s |
| 268.398° | |
| Inclination | 1.573° |
| 211.379° | |
| 182.091° | |
| Pheesical chairacteristics | |
| Dimensions | (225×205×195)±12 km[2] 225 km[3][4] |
| Mass | 1.27×1019 kg[2] |
Mean density | 2.70±0.48 g/cm³[2] |
| ~0.0629 m/s² | |
| ~0.1190 km/s | |
| 0.3101 d (7.4432 h)[1] | |
| Albedo | 0.037[1] |
| Temperatur | ~180 K |
Spectral teep | G[1] |
| 8.88[5] tae 12.95 | |
| 7.13[1] | |
| 0.25" tae 0.072" | |
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19 Fortuna is ane o the lairgest main-belt asteroids.
References[eedit | eedit soorce]
- ↑ a b c d e "JPL Small-Body Database Browser: 19 Fortuna". 21 August 2008. Retrieved 11 November 2008.
- ↑ a b c Jim Baer (2008). "Recent Asteroid Mass Determinations". Personal Website. Archived frae the original on 21 October 2013. Retrieved 27 November 2008.
- ↑ Storrs, Alex; Weiss, Ben; Zellner, Ben; Burleson, Win; Sichitiu, Rukmini; Wells, Eddie; Kowal, Charles; Tholen, David (1998). "Imaging Observations of Asteroids with Hubble Space Telescope" (PDF). Icarus. 137 (2): 260–268. Bibcode:1999Icar..137..260S. doi:10.1006/icar.1999.6047. S2CID 274199. Archived frae the original (PDF) on 25 Februar 2012. Retrieved 15 Januar 2005.
- ↑ Baer, James; Chesley, Steven R. (2008). "Astrometric masses of 21 asteroids, and an integrated asteroid ephemeris" (PDF). Celestial Mechanics and Dynamical Astronomy. Springer Science+Business Media B.V. 2007. 100 (2008): 27–42. Bibcode:2008CeMDA.100...27B. doi:10.1007/s10569-007-9103-8. Archived frae the original (PDF) on 24 Februar 2011. Retrieved 11 November 2008.
- ↑ "AstDys (19) Fortuna Ephemerides". Department of Mathematics, University of Pisa, Italy. Retrieved 27 Juin 2010.