101 Helena
| Use attributes for filter ! | |
| Orbital period | 1,519 days |
|---|---|
| Discovered | August 15, 1868 |
| Gravity | 0. 0184 m/s² |
| Orbits | Sun |
| Spectral type | S-type asteroid |
| Discoverer | James Craig Watson |
| Date of Reg. | |
| Date of Upd. | |
| ID | 2957743 |
About 101 Helena
Helena is a rocky main-belt asteroid. It was discovered by Canadian-American astronomer J. C. Watson on August 15, 1868, and was named after Helen of Troy in Greek mythology. Radar observations were made of this object on Oct 7 and 19, 2001 from the Arecibo Observatory.
