11949 Kagayayutaka
| Discovery Synodic rotation period | 3.96±0.03 h[5] | |
|---|---|---|
| 0.057 (assumed)[3] 0.708[4] | ||
| S[6] · C[3] | ||
| 11.80[4] · 11.9[1][3] · 11.91±0.58[6] | ||
11949 Kagayayutaka, provisional designation 1993 SD2, is a stony background asteroid from the outer region of the asteroid belt, approximately 23 kilometers (14 miles) in diameter. It was discovered on 19 September 1993, by Japanese amateur astronomers Kin Endate and Kazuro Watanabe at Kitami Observatory in eastern Hokkaidō, Japan.[7] The asteroid was named after Japanese artist Kagaya Yutaka.[2]
Orbit and classification
Kagayayutaka is a non-
background population. It orbits the Sun in the outer main-belt at a distance of 2.5–3.6 AU once every 5 years and 5 months (1,984 days). Its orbit has an eccentricity of 0.18 and an inclination of 8° with respect to the ecliptic.[1] The body's observation arc starts with its official discovery observation.[7]
Naming
This
M.P.C. 49674).[8]
Physical characteristics
Kagayayutaka has been characterized as a stony S-type asteroid by Pan-STARRS photometric survey.[6]
Diameter and albedo
According to the survey carried out by NASA's
albedo of 0.708,[4] while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for carbonaceous asteroids of 0.057 and calculates a diameter of 23.21 kilometers with an absolute magnitude of 11.9.[3]
Lightcurves
A rotational
U=3-).[5]
References
- ^ a b c d "JPL Small-Body Database Browser: 11949 Kagayayutaka (1993 SD2)" (2017-06-03 last obs.). Jet Propulsion Laboratory. Retrieved 24 June 2017.
- ^ ISBN 978-3-540-34361-5.
- ^ a b c d e f "LCDB Data for (11949) Kagayayutaka". Asteroid Lightcurve Database (LCDB). Retrieved 22 August 2016.
- ^ . Retrieved 22 August 2016.
- ^ a b Behrend, Raoul. "Asteroids and comets rotation curves – (11949) Kagayayutaka". Geneva Observatory. Retrieved 22 August 2016.
- ^ . Retrieved 22 August 2016.
- ^ a b "11949 Kagayayutaka (1993 SD2)". Minor Planet Center. Retrieved 22 August 2016.
- ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 22 August 2016.
External links
- Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (10001)-(15000) – Minor Planet Center
- 11949 Kagayayutaka at AstDyS-2, Asteroids—Dynamic Site
- 11949 Kagayayutaka at the JPL Small-Body Database
