3 Juno

3 Juno (symbol: ) is a main belt asteroid discovered by Karl Ludwig Harding on September 1, 1804. Juno was the third asteroid discovered in the Solar System and is named after Juno, the Roman goddess that is the queen of all gods.

Juno is an S-type asteroid, and is estimated to contain 1% of the total mass of the asteroid belt.

Juno orbits at a slightly closer distance to the Sun than Ceres or Pallas. Its orbit is inclined at around 12° to the ecliptic, but has very big eccentricity in its orbit.

Juno is in the Juno clump, a group of asteroids that share similar orbits, the biggest asteroid of the Juno clump is (32326) 2000 QO62 being 6 kilometers.

References

↑ "JPL Small-Body Database Browser". ssd.jpl.nasa.gov. 2011. Retrieved March 30, 2011.
↑ Schmadel, Lutz D. (2003). Dictionary of minor planet names, Volume 1. Springer. p. 15. ISBN 3540002383. Retrieved March 21, 2011.
↑ "Multispectral analysis of Asteroid 3 Juno taken with the 100-inch telescope at Mount Wilson Observatory" (PDF). University of North Dakota. Retrieved March 29, 2011.^{[permanent dead link]}
↑ Pitjeva, E. V. (2005). "High-Precision Ephemerides of Planets—EPM and Determination of Some Astronomical Constants" (PDF). Solar System Research. 39 (3): 176–186. Bibcode:2005SoSyR..39..176P. doi:10.1007/s11208-005-0033-2. S2CID 120467483. Archived from the original (PDF) on 2012-09-07. Retrieved 2011-03-31.
↑ Tomaszewski, Paul (2025-08-29). "Discovering the Wonders of Asteroid 3 Juno". CosmoBC. Retrieved 2025-10-11.
↑ Noonan, John W.; Reddy, Vishnu; Harris, Walter M.; Bottke, William F.; Sanchez, Juan A.; Furfaro, Roberto; Brown, Zarah; Fernandes, Rachel; Kareta, Theodore; Lejoly, Cassandra; Nallapu, Ravi Teja; Niazi, Haris Khan; Slick, Lindsay R.; Schatz, Lauren; Sharkey, Benjamin N. L.; Springmann, Alessondra; Angle, Geoff; Bailey, Leandra; Acuna, Derian D.; Lewin, Collin; Marchese, Katherina; Meshel, Max; Quintero, Natalie; Tatum, Kyle; Wilburn, Greg (2019). (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.36 Citoid/WMF (mailto:noc@wikimedia.org)&ssu=&ssv=&ssw=&ssx=eyJyZCI6ImlvcC5vcmciLCJ1em14IjoiN2Y5MDAwZWM2MmJkNzctMDk5ZC00M2Y2LWJmMTgtYWJmMzk0ZjAxNjgyMS0xNzYwMjA2ODQ1MzU0MC1jYWFmN2UwZWZmZTcwMWY0MTAiLCJfX3V6bWYiOiI3ZjkwMDAwNmM3NWNjYy0wNmViLTQ3ZTEtOWNjOC1hM2JjNGVhY2Q3YmYxLTE3NjAyMDY4NDUzNTQwLTAwMWMzM2FmYWFmODJhYTQ3MWUxMCJ9 "Search for the H Chondrite Parent Body among the Three Largest S-type Asteroids: (3) Juno, (7) Iris, and (25) Phocaea". The Astronomical Journal. 158 (5): 213. Bibcode:2019AJ....158..213N. doi:10.3847/1538-3881/ab4813. {{cite journal}}: Check |url= value (help)^{[permanent dead link]}

[1] "JPL Small-Body Database Browser". ssd.jpl.nasa.gov. 2011. Retrieved March 30, 2011.

[2] Schmadel, Lutz D. (2003). Dictionary of minor planet names, Volume 1. Springer. p. 15. ISBN 3540002383. Retrieved March 21, 2011.

[3] "Multispectral analysis of Asteroid 3 Juno taken with the 100-inch telescope at Mount Wilson Observatory" (PDF). University of North Dakota. Retrieved March 29, 2011.^{[permanent dead link]}

[4] Pitjeva, E. V. (2005). "High-Precision Ephemerides of Planets—EPM and Determination of Some Astronomical Constants" (PDF). Solar System Research. 39 (3): 176–186. Bibcode:2005SoSyR..39..176P. doi:10.1007/s11208-005-0033-2. S2CID 120467483. Archived from the original (PDF) on 2012-09-07. Retrieved 2011-03-31.

[5] Tomaszewski, Paul (2025-08-29). "Discovering the Wonders of Asteroid 3 Juno". CosmoBC. Retrieved 2025-10-11.

[6] Noonan, John W.; Reddy, Vishnu; Harris, Walter M.; Bottke, William F.; Sanchez, Juan A.; Furfaro, Roberto; Brown, Zarah; Fernandes, Rachel; Kareta, Theodore; Lejoly, Cassandra; Nallapu, Ravi Teja; Niazi, Haris Khan; Slick, Lindsay R.; Schatz, Lauren; Sharkey, Benjamin N. L.; Springmann, Alessondra; Angle, Geoff; Bailey, Leandra; Acuna, Derian D.; Lewin, Collin; Marchese, Katherina; Meshel, Max; Quintero, Natalie; Tatum, Kyle; Wilburn, Greg (2019). (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.36 Citoid/WMF (mailto:noc@wikimedia.org)&ssu=&ssv=&ssw=&ssx=eyJyZCI6ImlvcC5vcmciLCJ1em14IjoiN2Y5MDAwZWM2MmJkNzctMDk5ZC00M2Y2LWJmMTgtYWJmMzk0ZjAxNjgyMS0xNzYwMjA2ODQ1MzU0MC1jYWFmN2UwZWZmZTcwMWY0MTAiLCJfX3V6bWYiOiI3ZjkwMDAwNmM3NWNjYy0wNmViLTQ3ZTEtOWNjOC1hM2JjNGVhY2Q3YmYxLTE3NjAyMDY4NDUzNTQwLTAwMWMzM2FmYWFmODJhYTQ3MWUxMCJ9 "Search for the H Chondrite Parent Body among the Three Largest S-type Asteroids: (3) Juno, (7) Iris, and (25) Phocaea". The Astronomical Journal. 158 (5): 213. Bibcode:2019AJ....158..213N. doi:10.3847/1538-3881/ab4813. {{cite journal}}: Check |url= value (help)^{[permanent dead link]}