(3218) Dolphins
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Asteroid (3218) dolphins |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Major semi-axis | 2.5209 AU |
| eccentricity | 0.2172 |
| Perihelion - aphelion | 1.9733 AU - 3.0685 AU |
| Inclination of the orbit plane | 2.703 ° |
| Sidereal period | 4.003 a |
| Mean orbital velocity | 18.76 km / s |
| Physical Properties | |
| Absolute brightness | 13.9 likes |
| history | |
| Explorer |
CJ and I. van Houten-Groeneveld , T. Gehrels |
| Date of discovery | September 24, 1960 |
| Another name | 6611 PL, 1976 QJ 1 , 1976 SH 8 |
| 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. | |
(3218) Delphine is an asteroid of the main belt that was discovered on September 24, 1960 by the Dutch research team Cornelis Johannes van Houten , Ingrid van Houten-Groeneveld and Tom Gehrels as part of the Palomar-Leiden survey .
The asteroid was named after the astronomer Delphine Jehoulet Delsemme.