718 Erida

718 Erida
Discovery
Discovered by	J. Palisa
Discovery site	Vienna Obs.
Discovery date	29 September 1911
Designations
Alternative designations	1911 MS
Orbital characteristics
	Epoch 31 July 2016 (JD 2457600.5)
	Uncertainty parameter 0
Observation arc	113.31 yr (41,388 d)
Aphelion	3.6666 AU (548.52 Gm)
Perihelion	2.4451 AU (365.78 Gm)
Semi-major axis	3.0559 AU (457.16 Gm)
Eccentricity	0.19985
Orbital period (sidereal)	5.34 yr (1,951.2 d)
Mean anomaly	5.10173°
Mean motion	0° 11m 4.2s / day
Inclination	6.9294°
Longitude of ascending node	38.538°
Argument of perihelion	174.377°
Physical characteristics
Mean radius	36.47±2.45 km
Synodic rotation period	17.447 h (0.7270 d)
Geometric albedo	0.0399±0.006
Absolute magnitude (H)	9.6

718 Erida is a minor planet orbiting the Sun. It was discovered at Vienna on September 29, 1911, by Austrian astronomer Johann Palisa, and was named for Erida Leuschner, daughter of astronomer Armin Otto Leuschner. It is orbiting at a distance of 3.06 AU with a period of 5.34 yr and an eccentricity of 0.20. The orbital plane of this asteroid is inclined by an angle of 6.9° to the plane of the ecliptic.

Photometric observations made during 2009 were used to produce a light curve for this asteroid that showed a rotation period of 17.447±0.002 h with a brightness variation of 0.37 in magnitude. It spans a girth of approximately 72 km.

References

1 2 3 "718 Erida (1911 MS)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 5 May 2016.
↑ Mundt, Carlos S. (1917), "On the orbit of (718) Erida", Lick Observatory Bulletin, 302, Berkeley: University of California Press: 115, Bibcode:1917LicOB...9..115M, doi:10.5479/ADS/bib/1917LicOB.9.115M.
↑ Schmadel, Lutz D. (2007). "(718) Erida". Dictionary of Minor Planet Names – (718) Erida. Springer Berlin Heidelberg. p. 69. doi:10.1007/978-3-540-29925-7_719. ISBN 978-3-540-00238-3.
↑ Galad, Adrian; Vilagi, Jozef; Kornos, Leonard; Gajdos, Stefan (July 2009), "Relative Photometry of Nine Asteroids from Modra", Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers, 36 (3): 116–118, Bibcode:2009MPBu...36..116G.

External links

718 Erida at AstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
718 Erida at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters

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[jpldata-1] 1 2 3 "718 Erida (1911 MS)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 5 May 2016.

[Mundt1917-2] Mundt, Carlos S. (1917), "On the orbit of (718) Erida", Lick Observatory Bulletin, 302, Berkeley: University of California Press: 115, Bibcode:1917LicOB...9..115M, doi:10.5479/ADS/bib/1917LicOB.9.115M.

[Schmadel2007-3] Schmadel, Lutz D. (2007). "(718) Erida". Dictionary of Minor Planet Names – (718) Erida. Springer Berlin Heidelberg. p. 69. doi:10.1007/978-3-540-29925-7_719. ISBN 978-3-540-00238-3.

[Galad_et_al_2009-4] Galad, Adrian; Vilagi, Jozef; Kornos, Leonard; Gajdos, Stefan (July 2009), "Relative Photometry of Nine Asteroids from Modra", Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers, 36 (3): 116–118, Bibcode:2009MPBu...36..116G.