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1 References  





2 External links  














498 Tokio






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From Wikipedia, the free encyclopedia
 


Tokio
Discovery
Discovered byAuguste Charlois
Discovery siteNice
Discovery date2 December 1902
Designations

MPC designation

(498) Tokio
Pronunciation/ˈtki/

Alternative designations

1902 KU
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc112.09 yr (40942 d)
Aphelion3.2459283 AU (485.58396 Gm)
Perihelion2.0591298 AU (308.04143 Gm)

Semi-major axis

2.6525291 AU (396.81271 Gm)
Eccentricity0.2237107

Orbital period (sidereal)

4.32 yr (1577.9 d)

Mean anomaly

178.62454°

Mean motion

0° 13m 41.327s / day
Inclination9.493271°

Longitude of ascending node

97.404216°

Argument of perihelion

241.19753°
Physical characteristics

Mean radius

40.915±1.15 km

Synodic rotation period

41.85 h (1.744 d)

Geometric albedo

0.0694±0.004

Absolute magnitude (H)

8.95

Tokio (minor planet designation: 498 Tokio) (1902 KU) is a main-belt asteroid discovered on 2 December 1902 by Auguste Charlois at the Nice Observatory. Attribution to Astronomer Shin Hirayama of the Azabu Observatory, Tokyo, Japan for the 1900 discovery and naming of Tokio as cited in the 1947 Monthly Newsletter of the Royal Astronomical Society Vol 107, page 45.

References

[edit]
  1. ^ "498 Tokio (1902 KU)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 6 May 2016.

Attribution to Astronomer Shin Hirayama of the Azabu Observatory, Tokyo, Japan for the 1900 discovery and naming of Tokio as cited in the 1947 Monthly Newsletter of the Royal Astronomical Society Vol 107, page 45. http://articles.adsabs.harvard.edu/full/seri/MNRAS/0107//0000045.000.html

[edit]


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  • Retrieved from "https://en.wikipedia.org/w/index.php?title=498_Tokio&oldid=1191443982"

    Categories: 
    Minor planet object articles (numbered)
    Background asteroids
    Discoveries by Auguste Charlois
    Discoveries by Shin Hirayama
    Named minor planets
    M-type asteroids (Tholen)
    Astronomical objects discovered in 1902
    Main-belt-asteroid stubs
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    Use dmy dates from October 2019
    Articles with JPL SBDB identifiers
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    This page was last edited on 23 December 2023, at 15:56 (UTC).

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