19 Fortuna - Definition

**19 Fortuna**
Discovery
Discoverer	John Russell Hind
Discovery Date	August 22, 1852
Alternate Designations	A902 UG
Category	Main belt
Orbital Elements Epoch October 22, 2004 (JD 2453300.5)
Eccentricity (e)	0.159
Semi-Major Axis (a)	365.235 G m (2.441 AU)
Perihelion (q)	307.028 Gm (2.052 AU)
Aphelion (Q)	423.443 Gm (2.831 AU)
Orbital Period (P)	1393.378 d (3.81 a)
Mean Orbital Speed	18.94 km/s
Inclination (i)	1.573°
Longitude of the Ascending Node (Ω)	211.379°
Argument of Perihelion (ω)	182.091°
Mean Anomaly (M)	268.398°
Physical Characteristics
Dimensions	225.0 km ^{1 (http://web.media.mit.edu/~win/hstpub.pdf)}
Mass	1.2×10¹⁹ kg
Density	2.0? g/cm³
Surface Gravity	0.0629 m/s²
Escape Velocity	0.1190 km/s
Rotation Period	0.3101 d (7.443 h) ^{2 (http://www.psi.edu/pds/archive/lc.html)}
Spectral Class	G
Absolute Magnitude	7.13
Albedo	0.061 ^{3 (http://www.psi.edu/pds/archive/astdata/ALBEDOS/albedos.tab)}
Mean Surface Temperature	~248 K

19 Fortuna is one of the largest Main belt asteroids. It has a composition similar to 1 Ceres: a darkly colored surface and composition of primitive carbonates.

It was discovered by J. R. Hind on August 22, 1852 and named after Fortuna, the Roman goddess of luck.

The Hubble Space Telescope observed Fortuna in 1993. It was resolved with an apparent diameter of 0.20 arcseconds (4.5 pixels in the Planetary Camera) and its shape was found to be nearly spherical. Satellites were searched for but none were detected [1] (http://web.media.mit.edu/~win/hstpub.pdf).

Stellar occultations by Fortuna have been observed several times.

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The Minor Planets

Vulcanoids | Main belt | Groups and Families | Near-Earth objects | Jupiter Trojans

(For other objects and regions, see: Binary asteroids, Asteroid moons and the Solar system)

(For a complete listing, see: List of asteroids)

Example Usage of Fortuna
	ivettelanegra: RT @abuepape2: Julio Montoya denunció que "neofinacieros hicieron Fortuna en complicidad con el estado"//y ahora quieren chivo expiatorio
	franbatt: che schifo la Juve...x Fortuna oggi son andato a sciare...!
	e_d_e_n: @metheoro tem lá seus problemas sim - apesar de nunca ter rolado comigo. Mas tem em TODO canto onde vc n paga uma Fortuna pra brincar, né?

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19 Fortuna - Definition

Example Usage of Fortuna