193 Ambrosia

193 Ambrosia (Symbol:) is a main belt asteroid that was discovered by the Corsican-born French astronomer J. Coggia on February 28, 1879, and named after either Ambrosia, the food of the gods in Greek mythology, or Ambrosia, one of the Hyades. Lutz D. Schmadel argued that the second possibility was more likely, based on the fact that Coggia named another asteroid, 217 Eudora, after another of the Hyades.^[4]

193 Ambrosia

A three-dimensional model of 193 Ambrosia based on its light curve.
Discovery
Discovered by	J. Coggia, 1879
Discovery date	28 February 1879
Designations
MPC designation	(193) Ambrosia
Pronunciation	/æmˈbroʊʒiə/[1]
Alternative designations	A879 DB; 1915 RB
Minor planet category	Main belt
Orbital characteristics[2]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	100.12 yr (36569 d)
Aphelion	3.3720 AU (504.44 Gm)
Perihelion	1.8302 AU (273.79 Gm)
Semi-major axis	2.6011 AU (389.12 Gm)
Eccentricity	0.29638
Orbital period (sidereal)	4.20 yr (1532.2 d)
Mean anomaly	331.40°
Mean motion	0° 14m 5.82s / day
Inclination	12.010°
Longitude of ascending node	349.97°
Argument of perihelion	81.365°
Physical characteristics
Mean diameter	26 km
Synodic rotation period	6.580 hours[3] 6.581 h (0.2742 d)[2]
Geometric albedo	0.10
Absolute magnitude (H)	9.68

In 2009, photometric observations of this asteroid were made at the Palmer Divide Observatory in Colorado Springs, Colorado. The resulting light curve shows a synodic rotation period of 6.580 ± 0.001 hours with a brightness variation of 0.11 ± 0.02 in magnitude. This result is consistent with an independent study performed in 1996.^[3]