400 Ducrosa

400 Ducrosa
	Modelled shape of Ducrosa from its lightcurve
Discovery
Discovered by	Auguste Charlois
Discovery date	15 March 1895
Designations
MPC designation	(400) Ducrosa
Named after	J. Ducros
Alternative designations	1895 BU
Minor planet category	Main belt
Orbital characteristics
	Epoch 31 July 2016 (JD 2457600.5)
	Uncertainty parameter 0
Observation arc	121.08 yr (44225 d)
Aphelion	3.49063 AU (522.191 Gm)
Perihelion	2.76117 AU (413.065 Gm)
Semi-major axis	3.12590 AU (467.628 Gm)
Eccentricity	0.11668
Orbital period (sidereal)	5.53 yr (2018.6 d)
Average orbital speed	16.84 km/s
Mean anomaly	294.184°
Mean motion	0° 10m 42.013s / day
Inclination	10.5354°
Longitude of ascending node	327.145°
Argument of perihelion	238.468°
Earth MOID	1.7762 AU (265.72 Gm)
Jupiter MOID	1.59886 AU (239.186 Gm)
TJupiter	3.178
Physical characteristics
Dimensions	33.66±1.6 km
Synodic rotation period	6.87 h (0.286 d); 6.87 ± 0.01 hours
Geometric albedo	0.1423±0.014
Absolute magnitude (H)	10.5

400 Ducrosa is a typical Main belt asteroid. It was discovered by Auguste Charlois on 15 March 1895 in Nice.

Photometric measurements of the asteroid made in 2005 at the Palmer Divide Observatory showed a light curve with a period of 6.87 ± 0.01 hours and a brightness variation of 0.62 ± 0.02 in magnitude.^[2]

It is named for J. Ducros, a mechanic at the Nice Observatory.^[3]

References

^ ^a ^b "400 Ducrosa (1895 BU)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 10 May 2016.
^ ^a ^b Warner, Brian D. (2005), "Asteroid lightcurve analysis at the Palmer Divide Observatory - winter 2004-2005", The Minor Planet Bulletin, vol. 32, no. 3, pp. 54–58, Bibcode:2005MPBu...32...54W.
^ Schmadel, L. D. (2013:73). Dictionary of Minor Planet Names. Germany: Springer Berlin Heidelberg.

External links

Lightcurve plot of 400 Ducrosa, Palmer Divide Observatory, B. D. Warner (2005)
Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
400 Ducrosa at AstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
400 Ducrosa at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters

This article about an asteroid native to the asteroid belt is a stub. You can help Wikipedia by expanding it.

[jpldata-1] "400 Ducrosa (1895 BU)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 10 May 2016.

[Warner2005-2] Warner, Brian D. (2005), "Asteroid lightcurve analysis at the Palmer Divide Observatory - winter 2004-2005", The Minor Planet Bulletin, vol. 32, no. 3, pp. 54–58, Bibcode:2005MPBu...32...54W.

[3] Schmadel, L. D. (2013:73). Dictionary of Minor Planet Names. Germany: Springer Berlin Heidelberg.

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