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Erato /ˈɛrətoʊ/ (minor planet designation: 62 Erato) is a carbonaceous Themistian asteroid from the outer region of the asteroid belt, approximately 95 kilometers (59 miles) in diameter. Photometric measurements during 2004–2005 showed a rotation period of 9.2213±0.0007 h with an amplitude of 0.116±0.005 in magnitude.[5] It is orbiting the Sun with a period of 5.52 yr, a semimajor axis of 3.122 AU, and eccentricity of 0.178. The orbital plane is inclined by an angle of 2.22° to the plane of the ecliptic.

62 Erato
Lightcurve-based 3D-model of Erato
Discovery
Discovered byOskar Lesser
Wilhelm Julius Foerster
Discovery date14 September 1860
Designations
MPC designation
(62) Erato
Pronunciation/ˈɛrətoʊ/[1]
Named after
Ἐρατώ Eratō
Minor planet category
main-belt · (middle)
Themis [2]
AdjectivesEratoian /ɛrəˈtoʊ.iən/
Orbital characteristics
Epoch 31 December 2006 (JD 2454100.5)
Aphelion3.679 AU (550.4 Gm)
Perihelion2.566 AU (383.9 Gm)
Semi-major axis
3.122 AU (467.0 Gm)
Eccentricity0.178
Orbital period (sidereal)
2,015.178 d (5.52 yr)
Mean anomaly
161.828°
Inclination2.223°
Longitude of ascending node
125.738°
Argument of perihelion
273.285°
Physical characteristics
Mean diameter
95.4 km
Mass~6.27×1017 kg (calculated)
Mean density
1.38 g/cm3 (assumed)[3]
Synodic rotation period
5.675±0.001 h[4] or 9.2213±0.0007 h[5]
Geometric albedo
0.061[6]
Spectral type
Ch (SMASSII)
BU (Tholen)
Absolute magnitude (H)
8.76

    Erato is the first asteroid to have been credited with co-discoverers, Oskar Lesser and Wilhelm Forster, who discovered it on 14 September 1860, from the Berlin Observatory. It was their first and only asteroid discovery. The name was chosen by Johann Franz Encke, director of the observatory, and refers to Erato, the Muse of lyric poetry in Greek mythology.[7] It has also been classified as an Eoan asteroid.[4]


    References


    1. Noah Webster (1884) A Practical Dictionary of the English Language
    2. "Asteroid 62 Erato". Small Bodies Data Ferret. Retrieved 24 October 2019.
    3. https://ui.adsabs.harvard.edu/abs/2002Icar..158...98K
    4. Alvarez-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.
    5. Gonçalves, 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.
    6. "Asteroid Data Sets". Archived from the original on 17 December 2009. Retrieved 13 January 2007.
    7. Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names. Springer Science & Business Media. p. 21. ISBN 978-3-540-00238-3.



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    На других языках

    [de] (62) Erato

    (62) Erato ist ein Asteroid des äußeren Hauptgürtels, der am 14. September 1860 von den deutschen Astronomen Otto Lesser und Wilhelm Foerster an der Berliner Sternwarte entdeckt wurde.
    - [en] 62 Erato

    [es] (62) Erato

    (62) Erato es un asteroide que forma parte del cinturón de asteroides y fue descubierto por Otto Leberecht Lesser y Wilhelm Julius Foerster el 14 de septiembre de 1860 desde el observatorio de Berlín, Alemania. Está nombrado por Erato, una diosecilla de la mitología griega.[2]

    [fr] (62) Érato

    (62) Érato (désignation internationale (62) Erato) est un astéroïde de la ceinture principale découvert par Otto Lesser et Wilhelm Foerster le 14 septembre 1860 à l'Observatoire de Berlin. Ce fut leur premier et seul astéroïde découvert.

    [ru] (62) Эрато

    (62) Эрато (лат. Erato) — астероид главного пояса, который был открыт 14 сентября 1860 года в ходе совместной работы Оскара Лессера и Вильгельма Фёрстера в Берлинской обсерватории и назван в честь Эрато, музы любовной поэзии в древнегреческой мифологии[2].


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