| Discovery[1] | |
|---|---|
| Discovered by | G. N. Neujmin |
| Discovery date | 7 August 1915 |
| Designations | |
| (1915) S1 | |
| Pronunciation | /əˈmɛrɪkə/[2] |
Named after | Americas |
| Symbol | .svg) (astrological) |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 92.21 yr (33681 days) |
| Aphelion | 2.9247 AU (437.53 Gm) |
| Perihelion | 1.8037 AU (269.83 Gm) |
| 2.3642 AU (353.68 Gm) | |
| Eccentricity | 0.23706 |
| 3.64yr (1327.8d) | |
| 245.58° | |
| 0° 16m 16.068s / day | |
| Inclination | 11.093° |
| 329.79° | |
| 41.772° | |
| Physical characteristics | |
| 16.615±0.65km | |
| 38 h (1.6 d) | |
| 0.0530±0.004 | |
| 11.4 | |
916 America is aminor planet orbiting theSun in themain belt betweenMars andJupiter.
It was discovered on 7 August 1915 by theRussian astronomerGrigory Nikolaevich Neujmin atSimeis,Russian Empire.[1] Originally designated916ΣI, it was renamed '916 America' on 24 February 1923 after the Council of Astronomers atPulkovo Observatory decided to commemorate "the friendly relations of the astronomical observatories and astronomers".[3] It was named after theAmericas, which is why it was stated that it was named for theAmerican continent.[4] The name was possibly a mark of appreciation for the help given during the 1921 Russian famine by theAmerican Relief Administration under the later PresidentHerbert Hoover.
In 1986, assuming that the asteroid was of S-type and that it had a diameter of 15 km, the rotational period was measured to be 38 hours.[5] Observations by theInfrared Astronomical Satellite have since shown that it has a diameter of 33.2±1.3 km, with anabsolute magnitude of 11.20 and analbedo of 0.053±0.004.[1]
{{citation}}: CS1 maint: work parameter with ISBN (link)