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43 Ariadne

From Wikipedia, the free encyclopedia
Main-belt asteroid

43 Ariadne
A three-dimensional model of 43 Ariadne based on itslight curve
Discovery
Discovered byN. R. Pogson
Discovery date15 April 1857
Designations
(43) Ariadne
Pronunciation/æriˈædniː/[1]
Named after
Ariadne
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(3.27 ± 1.35/0.59)×1017 kg[5]
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.

Characteristics

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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°.

Studies

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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]

Notes

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  1. ^Assuming a diameter of 59 ± 4 km.

References

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  1. ^Noah Webster (1884)A Practical Dictionary of the English Language
  2. ^"IRAS Minor Planet Survey (IMPS)". Archived fromthe original on 11 December 2005. Retrieved11 December 2005.
  3. ^abKaasalainen, 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. ^abTanga, 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. ^abFienga, 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.
  6. ^PDS lightcurve dataArchived 14 June 2006 atarchive.today
  7. ^Supplemental IRAS Minor Planet SurveyArchived 23 June 2006 atarchive.today
  8. ^"AstDys (43) Ariadne Ephemerides". Department of Mathematics, University of Pisa, Italy. Archived fromthe original on 27 March 2012. Retrieved26 June 2010.
  9. ^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]
Minor planets
Asteroid
Distant minor planet
Comets
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