Image by diowcnx on Pixabay · Pixabay License
In the Vinony graph
Vinony's link graph records 8 inbound references to 400 Ducrosa, and connects out to light curve, Sun and day.
It is catalogued under topics including Astronomical objects discovered in 1895, Background asteroids and Discoveries by Auguste Charlois.
Vinony links it to 41 Wikipedia language editions.
Picture of the Day · NASA
Pathfinder on Mars
2026-07-04
On July 4th, 1997, using its own array of fireworks, a parachute, and a cocoon of airbags, the Mars Pathfinder spacecraft bounced like a giant beach ball at least 15 times before it came to rest on the surface of Mars at 10:07 AM Pacific Daylight Time. After its then novel airbag-assisted landing sequence was completed, Pathfinder transmitted this color mosaic to mission operators on Earth. In the scene from another world, the Mars Sojourner robot rover is visible in the foreground, crouched on top of the unfolded Pathfinder. About the size of a large house cat, the six-wheeled, solar-powered Sojourner became the first successful Martian rover. Surrounding Pathfinder are deflated airbags and the rock-strewn terrain of the Ares Vallis floodplain. In the distance Martian hills appear against a dusty brownish sky. The Pathfinder lander was subsequently renamed the Carl Sagan Memorial Station.
via NASA APOD
Key facts
- Discovered by
- Auguste Charlois
- Discovery date
- 15 March 1895
- Named after
- J. Ducros
- Alternative designations
- 1895 BU
- Minor planet category
- Main belt
- 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)
- Orbital period sidereal
- 5.527 yr (2,018.6 d)
- Average orbital speed
- 16.84 km/s
- Mean anomaly
- 294.184°
- Mean motion
- 0° 10 42.013 / 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)
via Wikipedia infobox
Wikidata facts
- Diameter
- 36.001
- Orbital period
- 2018.358838084538
- Image
- 400Ducrosa (Lightcurve Inversion).png
Show 15 more facts
- provisional designation
- 1950 CB
- time of discovery or invention
- 1895-03-15
- orbital inclination
- 10.52794764278703
- Commons category
- 400 Ducrosa
- albedo
- 0.112
- rotation period
- 6.8678
- absolute magnitude
- 10.75
- orbital eccentricity
- 0.1158995335157198
- semi-major axis of an orbit
- 3.125599311531852
- periapsis
- 2.763343809368255
- apoapsis
- 3.487854813695449
- longitude of ascending node
- 327.008627880574
- argument of periapsis
- 236.7334592508014
- mean anomaly
- 181.9827899370778
- time of periapsis
- 2461998.5628035045
Sources (3)
via Wikidata · CC0
~2 min read
Encyclopedic overview
400 Ducrosa is a typical main belt asteroid. It was discovered by Auguste Charlois on 15 March 1895 in Nice, and named for It J. Ducros a mechanic at the Nice Observatory. This minor planet is orbiting the Sun at a distance of 3.126 AU with a period of 5.527 yr and an orbital eccentricity of 0.117. The orbital plane is inclined at an angle of 10.5° to the plane of the ecliptic.
A three-dimensional model of 400 Ducrosa based on its light curve This asteroid has a B-type taxonomy, indicating it has a relatively bright geometric albedo for a carbonaceous asteroid. It has an estimated diameter of 33.66±1.6 km. Photometric measurements of the asteroid made in 2005 at the Palmer Divide Observatory showed a light curve with a rotation period of 6.87±0.01 h and a brightness variation of 0.62±0.02 in magnitude. A 2020 study found a rotation period of 6.8678±0.0001 h with a variation of 0.57±0.03 magnitude.
Excerpted from Wikipedia’s “400 Ducrosa” article, available under the CC BY-SA 4.0 licence.