 A three-dimensional model of 43 Ariadne based on itslight curve on the top and an image of the asteroid on the bottom. | |
| Discovery | |
|---|---|
| Discovered by | N. R. Pogson |
| Discovery date | 15 April 1857 |
| Designations | |
| (43) Ariadne | |
| Pronunciation | /æriˈædniː/[1] |
Named after | Ariadne |
| Main belt (Flora family) | |
| Adjectives | Ariadnean, Ariadnian/æriˈædniən/ |
| Orbital characteristics | |
| Epoch 26 November 2005 (JD 2453700.5) | |
| Aphelion | 384.954 Gm (2.573 AU) |
| Perihelion | 274.339 Gm (1.834 AU) |
| 329.646 Gm (2.204 AU) | |
| Eccentricity | 0.168 |
| 1194.766 d (3.27 a) | |
| 101.582° | |
| Inclination | 3.464° |
| 264.937° | |
| 15.948° | |
| Physical characteristics | |
| Dimensions | 95 km × 60 km × 50 km[2][3][4] |
| Mass | (3.27 ± 1.35/0.59)×1017 kg[5] |
Meandensity | 3.042 ± 1.255/0.547 g/cm3[5][a] |
| 0.2401 d[6] | |
| 0.274[7] | |
| S | |
| 8.8[8] to 13.42 | |
| 7.93 | |
| 0.11–0.025″ | |
43 Ariadne is a fairly large and brightmain-beltasteroid. It is the second-largest member of theFlora asteroid family. It was discovered byN. R. Pogson on 15 April 1857 and named after theGreek heroineAriadne.
Ariadne is very elongate (almost twice as long as its smallest dimension) and probably bi-lobed[4] or at least very angular. It is aretrograde rotator, although its pole points almost parallel to the ecliptic towardsecliptic coordinates (β, λ) = (−15°, 253°) with a 10° uncertainty.[3] This gives anaxial tilt of about 105°.
43 Ariadne was in a study of asteroids using the HubbleFGS. Asteroids studied include(63) Ausonia,(15) Eunomia, (43) Ariadne,(44) Nysa, and(624) Hektor.[9]
