|Properties of the orbit ( animation )|
|Orbit type||Apollo type|
|Major semi-axis||1.8738 AU|
|Perihelion - aphelion||0.4406 AU - 3.3069 AU|
|Inclination of the orbit plane||1.348 °|
|Sidereal period||936.9 days|
|Mean orbital velocity||21.76 km / s|
|Medium diameter||0.5 to 1.2 km|
|Medium density||? g / cm³|
|Absolute brightness||18.7 mag|
|Explorer||Eugène J. Delporte|
|Date of discovery||February 12, 1936|
|Another name||1936 CA|
|Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items.|
The asteroid was later lost and could not be found again until 1977. Calculations have shown that in 1926 Adonis approached the earth to within 2.5 million kilometers.
Adonis moves on an eccentric orbit between 0.4406 AU ( perihelion ) and 3.3069 AU ( aphelion ) around the sun in 2.56 years . The eccentricity of the orbit is 0.7649, with the orbit inclined at 1.348 ° to the ecliptic .
The size of Adonis is estimated at 0.5 to 1.2 km.