Saturn's Trojan Moon Telesto

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Saturn's Trojan Moon Telesto
Saturn XIII

Telesto [tah-LESS-toh] and Calypso [ka-LIP-so] are called the Tethys Trojans because they circle Saturn in the same orbit as Tethys, about 60 degrees ahead of and behind that body. Telesto is the leading Trojan and Calypso is the trailing Trojan. Both were found in 1981 by B. Smith through ground-based observations made in 1980. Telesto is 34 by 28 by 26 kilometers (21 by 17 by 16 miles).

Telesto Statistics

Discovered by	B. Smith & others
Date of discovery	1980

Mass (kg)	?
Radius (km)	17x14x13
Radius (Earth = 1)	2.6654e-03
Mean density (gm/cm^3)	?

Mean distance from Saturn (km)	294,660
Rotational period (days)	?
Orbital period (days)	1.8878
Mean orbital velocity (km/sec)	11.36

Orbital eccentricity	0.00
Orbital inclination (degrees)	0.0

Visual geometric albedo	0.5
Magnitude (Vo)	18.7

Saturn Calypso Dione