1225 Ariane

1225 Ariane, provisional designation 1930 HK, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 9 kilometers in diameter. It was discovered on 23 April 1930, by Dutch astronomer Hendrik van Gent at the Leiden Southern Station, annex to the Johannesburg Observatory in South Africa.^[6]

1225 Ariane

Discovery[1]
Discovered by	H. van Gent
Discovery site	Johannesburg Obs. (Leiden Southern Station)
Discovery date	23 April 1930
Designations
MPC designation	(1225) Ariane
Named after	"Ariane Leprieur" (fictional character)[2]
Alternative designations	1930 HK · 1928 UD 1958 TB
Minor planet category	main-belt · Flora[3]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc	88.64 yr (32,374 days)
Aphelion	2.4002 AU
Perihelion	2.0657 AU
Semi-major axis	2.2329 AU
Eccentricity	0.0749
Orbital period (sidereal)	3.34 yr (1,219 days)
Mean anomaly	150.36°
Mean motion	0° 17m 43.44s / day
Inclination	3.0739°
Longitude of ascending node	12.381°
Argument of perihelion	100.66°
Physical characteristics
Dimensions	9.194±0.091[4]
Synodic rotation period	5.5068±0.0001 h[5]
Geometric albedo	0.302±0.047[4]
Spectral type	S[3]
Absolute magnitude (H)	12.1[1]

Orbit and characterization

Ariane orbits the Sun at a distance of 2.1–2.4 AU once every 3 years and 4 months (1,219 days). Its orbit has an eccentricity of 0.07 and an inclination of 3° with respect to the ecliptic.^[1]

Photometric observations made in 2003 at the U.S. Carbuncle Hill Observatory (912) near Providence, Rhode Island, give a synodic rotation period of 5.529±0.002 hours. The light curve shows a brightness variation of 0.40±0.02 in magnitude.^[7]

Naming

This minor planet was named after "Ariane Leprieur", the principal role in the play Le Chemin de Crête by Gabriel Marcel (1889–1973).^[2] The official naming citation was first mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 96).^[2]