Main-belt asteroid
331 Etheridgea is a large main belt asteroid .[ 1] Auguste Charlois on 1 April 1892 in Nice . The meaning of the name is unknown.[ 2] Sun at a distance of AU period of 5.26 years and an eccentricity (ovalness) of 0.10. The orbital plane is tilted at an angle of 6.05° to the plane of the ecliptic .[ 1]
Analysis of the asteroid light curve generated from photometric data collected in 2015 provided a rotation period of ± 0.001 h[ 3] albedo , carbonaceous C-type asteroid and spans a girth of ± 2.7 km[ 4]
It may have been named for the geologist and paleontologist Robert Etheridge (1819–1903).[ 5] [ 6]
References
^ a b c "331 Etheridgea" . JPL Small-Body Database NASA /Jet Propulsion Laboratory . Retrieved 11 May 2016 .^ Schmadel, Lutz D. (2009), Dictionary of Minor Planet Names, Addendum to Fifth Edition: 2006 - 2008 ISBN 9783642019654 ^ Pilcher, Frederick (April 2016), "Rotation Period Determination for 269 Justitia, 275 Sapientia 331 Etheridgea, and 609 Fulvia", Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers , 43 (2): 135– 136, Bibcode :2016MPBu...43..135P . ^ Fornasier, S.; et al. (2014), "Aqueous alteration on main belt primitive asteroids: Results from visible spectroscopy", Icarus 233 : 163– 178, arXiv :1402.0175 Bibcode :2014Icar..233..163F , doi :10.1016/j.icarus.2014.01.040 . ^ "April 01 – Discovery of Asteroid 331 Etheridgea (1892)" . 1 April 2020.^ Room, A. (1988). Dictionary of Astronomical Names . United Kingdom: Routledge.
External links
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