Astronomy:43 Ariadne
.png) 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 |
| Minor planet category | Main belt (Flora family) |
| Adjectives | Ariadnean, Ariadnian /æriˈædniən/ |
| Orbital characteristics | |
| Epoch 26 November 2005 (JD 2453700.5) | |
| |{{{apsis}}}|helion}} | 384.954 Gm (2.573 AU) |
| |{{{apsis}}}|helion}} | 274.339 Gm (1.834 AU) |
| 329.646 Gm (2.204 AU) | |
| Eccentricity | 0.168 |
| Orbital period | 1194.766 d (3.27 a) |
| Mean anomaly | 101.582° |
| Inclination | 3.464° |
| Longitude of ascending node | 264.937° |
| 15.948° | |
| Physical characteristics | |
| Dimensions | 95 km × 60 km × 50 km[2][3][4] |
| Mass | (1.21±0.22)×1018 kg[5] |
| Mean density | |
| Rotation period | 0.2401 d[7] |
| Geometric albedo | 0.274[8] |
| S | |
| Apparent magnitude | 8.8[9] to 13.42 |
| Absolute magnitude (H) | 7.93 |
| Angular diameter | 0.11–0.025″ |
Ariadne (minor planet designation: 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.
Characteristics
Ariadne 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
43 Ariadne was in a study of asteroids using the Hubble FGS.[10] Asteroids studied include (63) Ausonia, (15) Eunomia, (43) Ariadne, (44) Nysa, and (624) Hektor.[10]
References
- ↑ Noah Webster (1884) A Practical Dictionary of the English Language
- ↑ "IRAS Minor Planet Survey (IMPS)". http://www.psi.edu/pds/archive/simps.html.
- ↑ 3.0 3.1 Kaasalainen, M.; Torppa, J.; Piironen, J. (2002). "Models of Twenty Asteroids from Photometric Data". Icarus 159 (2): 369–395. doi:10.1006/icar.2002.6907. Bibcode: 2002Icar..159..369K. http://www.rni.helsinki.fi/~mjk/IcarPIII.pdf.
- ↑ 4.0 4.1 Tanga, P. (2003). "Asteroid observations with the Hubble Space Telescope". Astronomy & Astrophysics 401 (2): 733–741. doi:10.1051/0004-6361:20030032. Bibcode: 2003A&A...401..733T. http://www.edpsciences.org/articles/aa/pdf/2003/14/aa3023.pdf.
- ↑ 5.0 5.1 Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science 73 (1): 98–118, doi:10.1016/j.pss.2012.03.009, Bibcode: 2012P&SS...73...98C. See Table 1.
- ↑ Krasinsky, G. A. (2002). "Hidden Mass in the Asteroid Belt". Icarus 158 (1): 98–105. doi:10.1006/icar.2002.6837. Bibcode: 2002Icar..158...98K.
- ↑ PDS lightcurve data
- ↑ Supplemental IRAS Minor Planet Survey
- ↑ "AstDys (43) Ariadne Ephemerides". Department of Mathematics, University of Pisa, Italy. https://hamilton.dm.unipi.it/astdys/index.php?pc=1.1.3.1&n=43&oc=500&y0=2096&m0=6&d0=15&h0=0&mi0=0&y1=2096&m1=6&d1=15&h1=0&mi1=0&ti=1.0&tiu=days.
- ↑ 10.0 10.1 Tanga, P.; Hestroffer, D.; Cellino, A.; Lattanzi, M.; Martino, M. Di; Zappalà, V. (2003-04-01). "Asteroid observations with the Hubble Space Telescope FGS" (in en). Astronomy & Astrophysics 401 (2): 733–741. doi:10.1051/0004-6361:20030032. ISSN 0004-6361. Bibcode: 2003A&A...401..733T. https://www.aanda.org/articles/aa/abs/2003/14/aa3023/aa3023.html.
External links
- shape model deduced from lightcurve
- bi-lobed shape model from Hubble lightcurves [|permanent dead link|dead link}}]
- 43 Ariadne at AstDyS-2, Asteroids—Dynamic Site
- 43 Ariadne at the JPL Small-Body Database
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