433 Eros
Near-Earth asteroid / From Wikipedia, the free encyclopedia
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This article is about the asteroid. For the dwarf planet with a similar name, see Eris (dwarf planet).
Eros (minor planet designation (433) Eros) is a stony asteroid of the Amor group, and the first discovered, and second-largest near-Earth object. It has an elongated shape and a volume-equivalent diameter of approximately 16.8 kilometers (10.4 miles). Visited by the NEAR Shoemaker space probe in 1998, it became the first asteroid ever studied from its own orbit.
Quick Facts Discovery, Discovered by ...
Discovery [1] | |
---|---|
Discovered by | C. G. Witt |
Discovery site | Berlin Urania Obs. |
Discovery date | 13 August 1898 |
Designations | |
(433) Eros | |
Pronunciation | /ˈɪərɒs/[2] |
Named after | Ἔρως, Érōs[3] |
| |
Adjectives | Erotian /ɛˈroʊʃ(i)ən/ |
Symbol | (astrological) |
Orbital characteristics [1] | |
Epoch 4 September 2017 (JD 2458000.5) | |
Uncertainty parameter 0 | |
Observation arc | 53.89 yr (19,683 days) |
Earliest precovery date | 29 October 1893 |
Aphelion | 1.7825 AU |
Perihelion | 1.1334 AU |
1.4579 AU | |
Eccentricity | 0.2226 |
1.76 yr (643 days) | |
71.280° | |
0° 33m 35.64s / day | |
Inclination | 10.828° |
304.32° | |
178.82° | |
Earth MOID | 0.1505 AU (58.6 LD) |
Mars MOID | 0.2407 AU |
Physical characteristics | |
Dimensions | |
Mass | (6.687±0.003)×1015 kg[4] |
Mean density | 2.67±0.03 g/cm3[1][4] |
5.270 h[1] | |
0.25±0.06[1] | |
7.0–15[6] | |
11.16[1] | |
Close
The asteroid was discovered by German astronomer C. G. Witt at the Berlin Observatory on 13 August 1898 in an eccentric orbit between Mars and Earth. It was later named after Eros, a god from Greek mythology, the son of Aphrodite. He is identified with the planet Venus.[3]