Key facts
- Discovered by
- E. Delporte
- Discovery site
- Uccle Obs.
- Discovery date
- 12 February 1936
- Pronunciation
- / ə ˈ d oʊ n ɪ s / , or, / ə ˈ d ɒ n ɪ s / ( NAE )
- Named after
- Adonis , ( Greek mythology )
- Alternative designations
- 1936 CA
- Minor planet category
- NEO · PHA · Apollo
- Observation arc
- 82.16 yr (30,009 d)
- Aphelion
- 3.3069 AU
- Perihelion
- 0.4415 AU
- Semi major axis
- 1.8742 AU
- Orbital period sidereal
- 2.57 yr (937 d)
- Mean anomaly
- 182.53 °
- Mean motion
- 0° 23 2.76 / day
- Inclination
- 1.3237°
- Longitude of ascending node
- 349.57°
- Argument of perihelion
- 43.551°
- Earth moid
- 0.0116 AU (4.52 LD )
via Wikipedia infobox
Wikidata facts
- Instance of
- near-Earth asteroid
- Named after
- Adonis
- Followed by
- 2102 Tantalus
- Follows
- 2100 Ra-Shalom
- Parent body
- Sun
- Minor-planet group
- asteroid belt
- Diameter
- 0.6
- Mass
- 1800000000000
- Orbital period
- 937.0475666015465
- Image
- Орбита астероида 2101 (плоскость).png
Show 19 more facts
- discoverer or inventor
- Eugène Joseph Delporte
- site of astronomical discovery
- Royal Observatory of Belgium
- provisional designation
- 1936 CA
- time of discovery or invention
- 1936-02-12
- orbital inclination
- 1.319975555725494
- orbital eccentricity
- 0.7641272866540292
- absolute magnitude
- 18.69
- periapsis
- 0.442031456643264
- apoapsis
- 3.306019349003813
- semi-major axis of an orbit
- 1.874025402823539
- mean anomaly
- 24.4791713609493
- longitude of ascending node
- 349.4054536342679
- argument of periapsis
- 43.71149376367007
- epoch
- November 21, 2025
- surface gravity
- 0.0003
- albedo
- 0.20
- temperature
- 197
- Commons category
- 2101 Adonis
- time of periapsis
- 2460936.782922344
Sources (2)
via Wikidata · CC0
~3 min read
Encyclopedic overview
2101 Adonis (provisional designation: 1936 CA) is an asteroid on an extremely eccentric orbit, classified as a potentially hazardous asteroid and near-Earth object of the Apollo group. Adonis measures approximately 0.6 km in diameter. Discovered by Eugène Delporte at Uccle in 1936, it became a lost asteroid until 1977. It may also be an extinct comet and a source of meteor showers. It was named after Adonis from Greek mythology.
Discovery
Excerpted from Wikipedia’s “2101 Adonis” article, available under the CC BY-SA 4.0 licence.