43 Ariadne is a fairly large and bright main-belt asteroid. It is the second-largest member of the Flora asteroid family. It was discovered by N. R. Pogson on 15 April 1857 and named after the Greek heroine Ariadne.
 A three-dimensional model of 43 Ariadne based on its light curve | |
| 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] |
Mean density | 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″ | |
Characteristics
editAriadne is very elongate (almost twice as long as its smallest dimension) and probably bi-lobed[4] or at least very angular. It is a retrograde rotator, although its pole points almost parallel to the ecliptic towards ecliptic coordinates (β, λ) = (−15°, 253°) with a 10° uncertainty.[3] This gives an axial tilt of about 105°.
Studies
edit43 Ariadne was in a study of asteroids using the Hubble FGS. Asteroids studied include (63) Ausonia, (15) Eunomia, (43) Ariadne, (44) Nysa, and (624) Hektor.[9]
Notes
edit- ^ Assuming a diameter of 59 ± 4 km.
References
edit- ^ Noah Webster (1884) A Practical Dictionary of the English Language
- ^ "IRAS Minor Planet Survey (IMPS)". Archived from the original on 11 December 2005. Retrieved 11 December 2005.
- ^ a b Kaasalainen, M.; Torppa, J.; Piironen, J. (2002). "Models of Twenty Asteroids from Photometric Data" (PDF). Icarus. 159 (2): 369–395. Bibcode:2002Icar..159..369K. doi:10.1006/icar.2002.6907.
- ^ a b Tanga, P.; et al. (2003). "Asteroid observations with the Hubble Space Telescope" (PDF). Astronomy & Astrophysics. 401 (2): 733–741. Bibcode:2003A&A...401..733T. doi:10.1051/0004-6361:20030032.
- ^ a b Fienga, A.; Avdellidou, C.; Hanuš, J. (February 2020). "Asteroid masses obtained with INPOP planetary ephemerides". Monthly Notices of the Royal Astronomical Society. 492 (1): 589–602. doi:10.1093/mnras/stz3407.
- ^ PDS lightcurve data Archived 14 June 2006 at archive.today
- ^ Supplemental IRAS Minor Planet Survey Archived 23 June 2006 at archive.today
- ^ "AstDys (43) Ariadne Ephemerides". Department of Mathematics, University of Pisa, Italy. Archived from the original on 27 March 2012. Retrieved 26 June 2010.
- ^ Tanga, P.; Hestroffer, D.; Cellino, A.; Lattanzi, M.; Martino, M. Di; Zappalà, V. (1 April 2003). "Asteroid observations with the Hubble Space Telescope FGS". Astronomy & Astrophysics. 401 (2): 733–741. Bibcode:2003A&A...401..733T. doi:10.1051/0004-6361:20030032. ISSN 0004-6361.
External links
edit- shape model deduced from lightcurve
- bi-lobed shape model from Hubble lightcurves [dead link]
- 43 Ariadne at AstDyS-2, Asteroids—Dynamic Site
- 43 Ariadne at the JPL Small-Body Database
