401 Ottilia

401 Ottilia
Discovery
Discovered by	Max Wolf
Discovery date	16 March 1895
Designations
MPC designation	(401) Ottilia
Pronunciation	/ɒˈtɪliə/
Alternative designations	1895 BT
Minor planet category	Main belt (Cybele)
Orbital characteristics
	Epoch 31 July 2016 (JD 2457600.5)
	Uncertainty parameter 0
Observation arc	121.08 yr (44225 d)
Aphelion	3.46736 AU (518.710 Gm)
Perihelion	3.2222 AU (482.03 Gm)
Semi-major axis	3.34480 AU (500.375 Gm)
Eccentricity	0.036643
Orbital period (sidereal)	6.12 yr (2234.4 d)
Mean anomaly	172.933°
Mean motion	0° 9m 40.032s / day
Inclination	5.9715°
Longitude of ascending node	36.138°
Argument of perihelion	294.690°
Physical characteristics
Dimensions	99.12±2.1 km
Synodic rotation period	6.049 h (0.2520 d)
Geometric albedo	0.0412±0.002
Absolute magnitude (H)	9.2

Ottilia (minor planet designation: 401 Ottilia) is a large main-belt asteroid. It was discovered by Max Wolf on March 16, 1895, in Heidelberg. It is named after the Germanic folkloric character Ottilia.

The semi-major axis of the orbit of 401 Ottilia lies just outside the 2/1 Kirkwood gap, located at 3.27 AU.^[2] 401 Ottilia is part of the Cybele asteroid group.^[3]

References[]

^ "401 Ottilia (1895 BT)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 10 May 2016.
^ Scholl, Hans; Froeschlé, Claude (September 1975), "Asteroidal motion at the 5/2, 7/3 and 2/1 resonances", Astronomy and Astrophysics, 42 (3): 457–463, Bibcode:1975A&A....42..457S
^ Lagerkvist, Claes-Ingvar; et al. (January 2001), "A Study of Cybele Asteroids. I. Spin Properties of Ten Asteroids", Icarus, 149 (1): 190–197, Bibcode:2001Icar..149..190L, doi:10.1006/icar.2000.6507.

External links[]

401 Ottilia at AstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
401 Ottilia at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

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[jpldata-1] "401 Ottilia (1895 BT)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 10 May 2016.

[aa42_3_457-2] Scholl, Hans; Froeschlé, Claude (September 1975), "Asteroidal motion at the 5/2, 7/3 and 2/1 resonances", Astronomy and Astrophysics, 42 (3): 457–463, Bibcode:1975A&A....42..457S

[Lagerkvist2001-3] Lagerkvist, Claes-Ingvar; et al. (January 2001), "A Study of Cybele Asteroids. I. Spin Properties of Ten Asteroids", Icarus, 149 (1): 190–197, Bibcode:2001Icar..149..190L, doi:10.1006/icar.2000.6507.

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