240 Vanadis

Main-belt asteroid

240 Vanadis is a fairly large main-belt asteroid with a diameter of around 100 km. It was discovered by A. Borrelly on August 27, 1884, in Marseilles and was named after Freyja (Vanadis), the Norse fertility goddess. The asteroid is orbiting the Sun at a distance of 2.67 AU with a period of 4.35 yr and an orbital eccentricity of 0.206. The orbital plane is inclined at an angle of 2.10° to the plane of the ecliptic.[1]

Photometric observations of the asteroid made during 2022 were used to produce a light curve that showed a rotation period of 10.565±0.002 h with a brightness variation of 0.07±0.01 in magnitude. This is consistent with earlier estimates.[3] It is very dark and is classified as a C-type asteroid, probably composed of primitive carbonaceous material.

References

  1. ^ a b c "240 Vanadis". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 12 May 2016.
  2. ^ a b c Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science, vol. 73, pp. 98–118, arXiv:1203.4336, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009. See Table 1.
  3. ^ Pilcher, Frederick (October 2022), "Lightcurves and Rotation Periods of 233 Asterope, 240 Vanadis, 275 Sapientia, 282 Clorinde, 414 Liriope, and 542 Susanna", Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers, 49 (4): 346–349, Bibcode:2022MPBu...49..346P.
  • The Asteroid Orbital Elements Database
  • Minor Planet Discovery Circumstances
  • Asteroid Lightcurve Data File
  • 240 Vanadis at AstDyS-2, Asteroids—Dynamic Site
    • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
  • 240 Vanadis at the JPL Small-Body Database Edit this at Wikidata
    • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters
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