400 Ducrosa
Main-belt asteroid / From Wikipedia, the free encyclopedia
400 Ducrosa is a typical Main belt asteroid. It was discovered by Auguste Charlois on 15 March 1895 in Nice.
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/3/3f/400Ducrosa_%28Lightcurve_Inversion%29.png/640px-400Ducrosa_%28Lightcurve_Inversion%29.png)
Quick Facts Discovery, Discovered by ...
![]() Modelled shape of Ducrosa from its lightcurve | |
Discovery | |
---|---|
Discovered by | Auguste Charlois |
Discovery date | 15 March 1895 |
Designations | |
(400) Ducrosa | |
Named after | J. Ducros |
1895 BU | |
Main belt | |
Orbital characteristics[1] | |
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) |
3.12590 AU (467.628 Gm) | |
Eccentricity | 0.11668 |
5.53 yr (2018.6 d) | |
Average orbital speed | 16.84 km/s |
294.184° | |
0° 10m 42.013s / day | |
Inclination | 10.5354° |
327.145° | |
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 |
6.87 h (0.286 d)[1] 6.87 ± 0.01 hours[2] | |
0.1423±0.014 | |
10.5 | |
Close
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]