NationMaster - Encyclopedia: 704 Interamnia

**704 Interamnia**
Discovery
Discoverer	Vincenzo Cerulli
Discovery Date	October 2, 1910
Alternate Designations	1910 KU; 1952 MW
Category	Main belt
Orbital Elements Epoch October 22, 2004 (JD 2453300.5)
Eccentricity (e)	0.149
Semi-Major Axis (a)	458.187 G m (3.063 AU)
Perihelion (q)	389.910 Gm (2.606 AU)
Aphelion (Q)	526.464 Gm (3.519 AU)
Orbital Period (P)	1957.827 d (5.36 a)
Mean Orbital Speed	16.92 km/s
Inclination (i)	17.285�
Longitude of the Ascending Node (Ω)	280.422�
Argument of Perihelion (ω)	95.654�
Mean Anomaly (M)	204.093�
Physical Characteristics
Dimensions	316.6 km
Mass	3.3�10¹⁹ kg
Density	2.0 ? g/cm�
Surface Gravity	0.0885 m/s�
Escape Velocity	0.1674 km/s
Rotation Period	0.364 d 1 (http://obswww.unige.ch/~behrend/page2cou.html)
Spectral Class	F
Absolute Magnitude	5.94
Albedo	0.075 2 (http://www.psi.edu/pds/archive/astdata/ALBEDOS/albedos.tab)
Mean Surface Temperature	~221 K

704 Interamnia ("IN ter AM nia") is a very large asteroid with a diameter of 350 kilometres. Its mean distance from Sun is 3.067 (AU). It was discovered on October 2, 1910 by Vincenzo Cerulli, and named after the Latin name for Teramo, Italy, where Cerulli worked.

Interamnia is the sixth largest known asteroid within Jupiter's orbit and was discovered surprisingly late for such a large object.

Categories: Stub | Main Belt asteroids

Results from FactBites:

Vincenzo Cerulli - Wikipedia, the free encyclopedia (133 words)
	He also observed Mars and developed the theory that the Martian canals were not real but an optical illusion, a theory that was later confirmed.
	He discovered one asteroid, 704 Interamnia, which is named after the Latin name for Teramo, and is notable for its relatively large diameter of approximately 350 km, which makes it one of the largest bodies in the traditional asteroid belt.
	A crater on Mars is named after Cerulli, as is the asteroid 366 Vincentina.

More results at FactBites »

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