3 Juno
 Juno seen at fower wavelengths. A lairge crater appears dark at 934 nm. | |
| Discovery | |
|---|---|
| Discovered bi | Karl Ludwig Harding |
| Discovery date | September 1, 1804 |
| Designations | |
| Pronunciation | /ˈdʒuːnoʊ/ |
Named after | Juno (Laitin: Iūno) |
| none | |
| Main belt (Juno clump) | |
| Adjectives | Junonian /dʒuːˈnoʊniən/[1] |
| Orbital chairactereestics[2] | |
| Epoch November 30, 2008 (JD 2454800.5) | |
| Aphelion | 3.356 AU (502.050 Gm) |
| Perihelion | 1.988 AU (297.40 Gm) |
| 2.672 AU (399.725 Gm) | |
| Eccentricity | 0.2559 |
| 4.37 a (1595.4 d) | |
Average orbital speed | 17.93 km/s |
| 256.8° | |
| Inclination | 12.968° |
| 169.96° | |
| 247.93° | |
| Proper orbital elements[3] | |
Proper semi-major axis | 2.6693661 AU |
Proper eccentricity | 0.2335060 |
Proper inclination | 13.2515192° |
Proper mean motion | 82.528181 deg / yr |
Proper orbital period | 4.36215 yr (1593.274 d) |
Precession o perihelion | 43.635655 arcsec / yr |
Precession of the ascending node | −61.222138 arcsec / yr |
| Pheesical chairacteristics | |
| Dimensions | (320×267×200)±6 km[4] (233 km)[2] |
| Mass | 2.67 ×1019 kg[4] |
Mean density | 2.98 ± 0.55 g/cm³[4] |
| 0.12 m/s² | |
| 0.18 km/s | |
| 7.21 hr[2] (0.3004 d)[5] | |
| Albedo | 0.238 (geometric)[2][6] |
| Temperatur | ~163 K max: 301 K (+28°C)[7] |
Spectral teep | S-type asteroid[2][8] |
| 7.4[9][10] to 11.55 | |
| 5.33[2][6] | |
| 0.30" tae 0.07" | |
Juno, minor-planet designation 3 Juno in the Minor Planet Center catalogue seestem, wis the third asteroid tae be discovered an is ane o the larger main-belt asteroids, bein ane o the twa lairgest stany (S-type) asteroids, alang wi 15 Eunomia.
References
[eedit | eedit soorce]- ↑ "Junonian". Oxford English Dictionary (3rd ed.). Oxford University Press. September 2005. (Subscription or UK public leebrar membership required.)
- ↑ a b c d e f "JPL Small-Body Database Browser: 3 Juno". 30 Julie 2008. Retrieved 1 November 2008.
- ↑ "AstDyS-2 Juno Synthetic Proper Orbital Elements". Department of Mathematics, University of Pisa, Italy. Retrieved 1 October 2011.
- ↑ a b c Jim Baer (2008). "Recent Asteroid Mass Determinations". Personal Website. Archived frae the original on 21 October 2013. Retrieved 3 December 2008.
- ↑ 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 28 Januar 2007. Retrieved 15 Mairch 2007.
- ↑ a b Davis, D. R.; Neese, C., Eds. (2002). "Asteroid Albedos. EAR-A-5-DDR-ALBEDOS-V1.1". NASA Planetary Data System. Archived frae the original on 25 Januar 2007. Retrieved 18 Februar 2007.CS1 maint: multiple names: authors leet (link)
- ↑ Lim, Lucy F.; McConnochie, Timothy H.; Bell, James F.; Hayward, Thomas L. (2005). "Thermal infrared (8-13 µm) spectra of 29 asteroids: the Cornell Mid-Infrared Asteroid Spectroscopy (MIDAS) Survey". Icarus. 173 (2): 385–408. Bibcode:2005Icar..173..385L. doi:10.1016/j.icarus.2004.08.005.
- ↑ 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 24 December 2013.
- ↑ "AstDys (3) Juno Ephemerides". Department of Mathematics, University of Pisa, Italy. Retrieved 26 Juin 2010.
- ↑ "Bright Minor Planets 2005". Minor Planet Center. Archived frae the original on 27 August 2010. Retrieved 7 November 2014.