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62 Erato

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Main-belt asteroid

62 Erato
Discovery
Lightcurve-based 3D-model ofErato
Discovered by	Oskar Lesser Wilhelm Julius Foerster
Discovery date	14 September 1860
Designations
MPC designation	(62) Erato
Pronunciation	/ˈɛrətoʊ/^[1]
Named after	ἘρατώEratō
Minor planet category	Main-belt (middle) Themis^[2]
Adjectives	Eratoian/ɛrəˈtoʊ.iən/
Orbital characteristics
Epoch 31 December 2006 (JD 2454100.5)
Aphelion	3.679 AU (550.4 Gm)
Perihelion	2.566 AU (383.9 Gm)
Semi-major axis	3.122 AU (467.0 Gm)
Eccentricity	0.178
Orbital period (sidereal)	2,015.178 d (5.52 yr)
Mean anomaly	161.828°
Inclination	2.223°
Longitude of ascending node	125.738°
Argument of perihelion	273.285°
Physical characteristics
Mean diameter	95.4 km
Mass	c. 6.27×10¹⁷ kg (calculated)
Meandensity	1.38 g/cm³ (assumed)^[3]
Synodic rotation period	5.675±0.001 h^[4] or9.2213±0.0007 h^[5]
Geometric albedo	0.061^[6]
Spectral type	Ch (SMASSII) BU (Tholen)
Absolute magnitude (H)	8.76

62 Erato (/ˈɛrətoʊ/) is acarbonaceous asteroid from the outer region of theasteroid belt, approximately 95 kilometers (59 miles) in diameter. It is a member of theThemis family of asteroids that share similar properties and orbital characteristics.Photometric measurements during 2004–2005 showed a rotation period of9.2213±0.0007 h with anamplitude of0.116±0.005 in magnitude.^[5] It is orbiting theSun with aperiod of 5.52 yr, asemimajor axis of3.122 AU, andeccentricity of 0.178. Theorbital plane is inclined by an angle of 2.22° to theplane of the ecliptic.

Erato is the first asteroid to have been credited with co-discoverers,Oskar Lesser andWilhelm Forster, who discovered it on 14 September 1860, from theBerlin Observatory. It was their first and only asteroid discovery. The name was chosen byJohann Franz Encke, director of the observatory, and refers toErato, theMuse oflyric poetry inGreek mythology.^[7] It has also been classified as a member of theEos family.^[4]

^Noah Webster (1884).A Practical Dictionary of the English Language.
^"Asteroid 62 Erato".Small Bodies Data Ferret. Retrieved24 October 2019.
^Krasinsky, G. A.; Pitjeva, E. V.; Vasilyev, M. V.; Yagudina, E. I. (July 2002)."Hidden Mass in the Asteroid Belt".Icarus.158 (1):98–105.Bibcode:2002Icar..158...98K.doi:10.1006/icar.2002.6837.
^^a ^bAlvarez-Candal, Alvaro; et al. (December 2004), "Rotational lightcurves of asteroids belonging to families",Icarus,172 (2):388–401,Bibcode:2004Icar..172..388A,doi:10.1016/j.icarus.2004.06.008.
^^a ^bGonçalves, Rui M. D.; Behrend, Raoul (March 2006), "Lightcurve of 62 Erato",Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers,33 (1): 7,Bibcode:2006MPBu...33....7G.
^"Asteroid Data Sets".Planetary Data System Asteroid/Dust Archive. NASA. Archived fromthe original on 17 December 2009. Retrieved13 January 2007.
^Schmadel, Lutz D. (2003).Dictionary of Minor Planet Names. Springer. p. 21.ISBN 978-3-540-00238-3.

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Designation Groups List Moon Meanings of names
Asteroid	Active Aten asteroid Asteroid belt Family Jupiter trojan Near-Earth Spectral types
Distant minor planet	Centaur Neptune trojan Damocloid Trans-Neptunian object Detached Kuiper belt Oort cloud Scattered disc

Other

Authority control databases	JPL SBDB MPC

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