3 Juno

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3 Juno Juno symbol.svg
Juno 4 wavelengths.jpg
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 /ˈn/
Named after
Juno (Laitin: Iūno)
none
Main belt (Juno clump)
Adjectives Junonian /ˈnniən/[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)
17.93 km/s
256.8°
Inclination 12.968°
169.96°
247.93°
Proper orbital elements[3]
2.6693661 AU
0.2335060
13.2515192°
82.528181 deg / yr
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]

  1. "Junonian". Oxford English Dictionary (3rd ed.). Oxford University Press. September 2005.  (Subscription or UK public library membership required.)
  2. 2.0 2.1 2.2 2.3 2.4 2.5 "JPL Small-Body Database Browser: 3 Juno". 2008-07-30 last obs. Retrieved 2008-11-01.  Check date values in: |date= (help)
  3. "AstDyS-2 Juno Synthetic Proper Orbital Elements". Department of Mathematics, University of Pisa, Italy. Retrieved 2011-10-01. 
  4. 4.0 4.1 4.2 Jim Baer (2008). "Recent Asteroid Mass Determinations". Personal Website. Retrieved 2008-12-03. 
  5. 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 oreeginal on 2007-01-28. Retrieved 2007-03-15. 
  6. 6.0 6.1 Davis, D. R.; Neese, C., Eds. (2002). "Asteroid Albedos. EAR-A-5-DDR-ALBEDOS-V1.1". NASA Planetary Data System. Archived frae the oreeginal on 2007-01-25. Retrieved 2007-02-18. 
  7. 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. 
  8. Neese, C.; Ed. (2005). "Asteroid Taxonomy.EAR-A-5-DDR-TAXONOMY-V5.0". NASA Planetary Data System. Archived frae the oreeginal on 2006-09-05. Retrieved 2013-12-24. 
  9. "AstDys (3) Juno Ephemerides". Department of Mathematics, University of Pisa, Italy. Retrieved 2010-06-26. 
  10. "Bright Minor Planets 2005". Minor Planet Center. Archived frae the oreeginal on 2010-08-27.