43 Ariadne Explained

Minorplanet:yes
Bgcolour:
  1. D6D6D6
43 Ariadne
Discoverer:N. R. Pogson
Discovered:15 April 1857
Mpc Name:(43) Ariadne
Pronounced:[1]
Adjective:Ariadnean, Ariadnian
Named After:Ariadne
Mp Category:Main belt (Flora family)
Epoch:26 November 2005 (JD 2453700.5)
Semimajor:329.646 Gm (2.204 AU)
Perihelion:274.339 Gm (1.834 AU)
Aphelion:384.954 Gm (2.573 AU)
Eccentricity:0.168
Period:1194.766 d (3.27 a)
Inclination:3.464°
Asc Node:264.937°
Arg Peri:15.948°
Mean Anomaly:101.582°
Dimensions:[2]
Mass:(3.27 ± 1.35/0.59) kg
Density:3.042 ± 1.255/0.547 g/cm3
Rotation:0.2401 d[3]
Spectral Type:S
Magnitude:8.8 to 13.42
Abs Magnitude:7.93
Albedo:0.274
Angular Size:0.11–0.025

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.[5] This gives an axial tilt of about 105°.

Studies

43 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.

External links

Notes and References

  1. Noah Webster (1884) A Practical Dictionary of the English Language
  2. Web site: IRAS Minor Planet Survey (IMPS). 2005-12-11 . dead . https://archive.today/20051211134758/http://www.psi.edu/pds/archive/simps.html . 2005-12-11 .
  3. http://www.psi.edu/pds/archive/lc.html PDS lightcurve data
  4. Tanga . P. . 2003 . Asteroid observations with the Hubble Space Telescope . Astronomy & Astrophysics . 401 . 2. 733–741 . 10.1051/0004-6361:20030032 . 2003A&A...401..733T. etal. free .
  5. Kaasalainen . M. . Torppa, J. . Piironen, J. . 2002 . Models of Twenty Asteroids from Photometric Data . Icarus . 159 . 2 . 369–395 . 10.1006/icar.2002.6907 . 2002Icar..159..369K.