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577 Rhea
	Modelled shape of Rhea from its lightcurve
Discovery
Discovered by	M. F. Wolf
Discovery site	Heidelberg
Discovery date	20 October 1905
Designations
MPC designation	(577) Rhea
Pronunciation	/ˈriːə/
Alternative designations	1905 RH
Orbital characteristics
	Epoch 31 July 2016 (JD 2457600.5)
	Uncertainty parameter 0
Observation arc	110.32 yr (40296 d)
Aphelion	3.5931 AU (537.52 Gm)
Perihelion	2.6297 AU (393.40 Gm)
Semi-major axis	3.1114 AU (465.46 Gm)
Eccentricity	0.15481
Orbital period (sidereal)	5.49 yr (2004.6 d)
Mean anomaly	105.219°
Mean motion	0° 10m 46.524s / day
Inclination	5.2964°
Longitude of ascending node	328.579°
Argument of perihelion	330.784°
Physical characteristics
Mean radius	19.765±1.15 km
Synodic rotation period	12.249 h (0.5104 d)
Geometric albedo	0.1792±0.023
Absolute magnitude (H)	9.4

577 Rhea is a minor planet orbiting the Sun. It is named after Rhea, one of the Titans in Greek mythology. The name may have been inspired by the asteroid's provisional designation 1905 RH.

References

^ Noah Webster (1884) A Practical Dictionary of the English Language
^ "577 Rhea (1905 RH)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Archived from the original on 18 September 2020. Retrieved 5 May 2016.

External links

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

This article about an asteroid native to the asteroid belt is a stub. You can help Wikipedia by expanding it.

[1] Noah Webster (1884) A Practical Dictionary of the English Language

[jpldata-2] "577 Rhea (1905 RH)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Archived from the original on 18 September 2020. Retrieved 5 May 2016.

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