43 Ariadne

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43 Ariadne
43Ariadne (Lightcurve Inversion).png
A three-dimensional model of 43 Ariadne based on its light curve
Discovery
Discovered byN. R. Pogson
Discovery date15 April 1857
Designations
MPC designation
(43) Ariadne
Pronunciation/æriˈædniː/[1]
Named after
Ariadne
Minor planet category
Main belt (Flora family)
AdjectivesAriadnean, Ariadnian /æriˈædniən/
Orbital characteristics
Epoch 26 November 2005 (JD 2453700.5)
Aphelion384.954 Gm (2.573 AU)
Perihelion274.339 Gm (1.834 AU)
329.646 Gm (2.204 AU)
Eccentricity0.168
1194.766 d (3.27 a)
101.582°
Inclination3.464°
264.937°
15.948°
Physical characteristics
Dimensions95 km × 60 km × 50 km[2][3][4]
Mass(1.21±0.22)×1018 kg[5]
Mean density
  • ~2.7 g/cm3 (estimate)[6]
  • 8.99±2.57 g/cm3 [5]
0.2401 d[7]
0.274[8]
S
8.8[9] to 13.42
Absolute magnitude (H)
7.93
0.11–0.025″

Ariadne (minor planet designation: 43 Adriane) 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]

Trivia[]

  • For reasons unknown, "Asteroid 43 Ariadne" was included in a list of names of supporters of the NASA spacecraft Stardust that was stored on a microchip within the spacecraft.
  • The maximum apparent size of Ariadne is equivalent to the maximum apparent size of Pluto.

References[]

  1. ^ Noah Webster (1884) A Practical Dictionary of the English Language
  2. ^ "IRAS Minor Planet Survey (IMPS)". Archived from the original on 11 December 2005. Retrieved 11 December 2005.
  3. ^ 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.
  4. ^ 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.
  5. ^ a b Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science, 73, pp. 98–118, arXiv:1203.4336, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009. See Table 1.
  6. ^ Krasinsky, G. A.; et al. (2002). "Hidden Mass in the Asteroid Belt". Icarus. 158 (1): 98–105. Bibcode:2002Icar..158...98K. doi:10.1006/icar.2002.6837.
  7. ^ PDS lightcurve data Archived 14 June 2006 at archive.today
  8. ^ Supplemental IRAS Minor Planet Survey Archived 23 June 2006 at archive.today
  9. ^ "AstDys (43) Ariadne Ephemerides". Department of Mathematics, University of Pisa, Italy. Archived from the original on 28 June 2012. Retrieved 26 June 2010.
  10. ^ a b 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[]

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