313 Chaldaea

313 Chaldaea
	Orbital diagram
Discovery
Discovered by	Johann Palisa
Discovery date	30 August 1891
Designations
MPC designation	(313) Chaldaea
Pronunciation	/kælˈdiːə/
Named after	Chaldea
Minor planet category	Main belt
Orbital characteristics
	Epoch 31 July 2016 (JD 2457600.5)
	Uncertainty parameter 0
Observation arc	122.79 yr (44849 d)
Aphelion	2.8054 AU (419.68 Gm)
Perihelion	1.9456 AU (291.06 Gm)
Semi-major axis	2.3755 AU (355.37 Gm)
Eccentricity	0.18096
Orbital period (sidereal)	3.66 yr (1337.3 d)
Mean anomaly	262.291°
Mean motion	0° 16m 9.084s / day
Inclination	11.654°
Longitude of ascending node	176.640°
Argument of perihelion	316.013°
Physical characteristics
Dimensions	96.34±1.7 km
Synodic rotation period	8.392 h (0.3497 d)
Geometric albedo	0.0524±0.002
Spectral type	C
Absolute magnitude (H)	8.90

313 Chaldaea is a large Main belt asteroid. It is classified as a C-type asteroid and is probably composed of carbonaceous material. It was discovered by Johann Palisa on 30 August 1891 in Vienna. It was named in honor of the Chaldeans, considered the founders of astrology.

In 2003, the asteroid was detected by radar from the Arecibo Observatory at a distance of 1.07 AU. The resulting data yielded an effective diameter of 96 ± 14 km.

References

^ Noah Webster (1884) A Practical Dictionary of the English Language
^ ^a ^b "313 Chaldaea". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 11 May 2016.
^ Schmadel, L. (2003:42). Dictionary of minor planet names. Germany: Springer.
^ Magri, Christopher; et al. (January 2007), "A radar survey of main-belt asteroids: Arecibo observations of 55 objects during 1999 2003" (PDF), Icarus, 186 (1): 126–151, Bibcode:2007Icar..186..126M, doi:10.1016/j.icarus.2006.08.018, retrieved 14 April 2015.

External links

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

This article about a C-type 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] "313 Chaldaea". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 11 May 2016.

[3] Schmadel, L. (2003:42). Dictionary of minor planet names. Germany: Springer.

[icarus186_1_126-4] Magri, Christopher; et al. (January 2007), "A radar survey of main-belt asteroids: Arecibo observations of 55 objects during 1999 2003" (PDF), Icarus, 186 (1): 126–151, Bibcode:2007Icar..186..126M, doi:10.1016/j.icarus.2006.08.018, retrieved 14 April 2015.