100 Hekate
Main-belt asteroid
Hekate (minor planet designation: 100 Hekate) is a large main-belt asteroid.
About
This is a stony S-type asteroid with a diameter of 87+5
−4 km and a sidereal rotation period of 27.07 h.[6] It orbits in the same region of space as the Hygiea asteroid family, though it is actually an unrelated interloper. However, its geometric albedo of 0.22±0.03[6] is too high, and it is of the wrong spectral class to be part of the dark carbonaceous Hygiea family. It is listed as a member of the Hecuba group of asteroids that orbit near the 2:1 mean-motion resonance with Jupiter.[7]
Hekate was the 100th asteroid to be discovered, by Canadian-American astronomer J. C. Watson (his fourth discovery) on July 11, 1868.[8] It is named after Hecate, the goddess of witchcraft in Greek mythology, but its name also commemorates it as the hundredth asteroid, as ἑκατόν (hekaton) is Greek for 'hundred'.
A Hekatean occultation of a star was observed on July 14, 2003, from New Zealand.
See also
- List of minor planets: 1–1000
- 100000 Astronautica
References
- ^ a b "Hecate". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)
- ^ a b c d "100 Hekate". JPL Small-Body Database. Jet Propulsion Laboratory. SPK-ID: 2000100. Retrieved 12 May 2016.
- ^ a b "IRAS Minor Planet Survey". Archived from the original on 11 December 2005.
- ^ Krasinsky, G. A. (2002). "Hidden Mass in the Asteroid Belt". Icarus. 158 (1): 98. Bibcode:2002Icar..158...98K. doi:10.1006/icar.2002.6837.
- ^ "Asteroid Lightcurve Parameters".
- ^ a b Marciniak, A.; et al. (May 2019). "Thermal properties of slowly rotating asteroids: results from a targeted survey". Astronomy & Astrophysics. 625: 40. arXiv:1905.06056. Bibcode:2019A&A...625A.139M. doi:10.1051/0004-6361/201935129. S2CID 146059739. A139.
- ^ McDonald, S. L. (1948). "General perturbations and mean elements, with representations of 35 minor planets of the Hecuba group". The Astronomical Journal. 53: 199. Bibcode:1948AJ.....53..199M. doi:10.1086/106097.
- ^ "Discovery Circumstances: Numbered Minor Planets 1–5000". IAU Minor Planet Center. Retrieved 7 April 2013.
External links
- 100 Hekate at AstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
- 100 Hekate at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters
- v
- t
- e
- 99 Dike
- 100 Hekate
- 101 Helena
Authority control databases  |
|
|---|
