4672 Takuboku

Takuboku

Discovery
Discovered by	Seiji Ueda and Hiroshi Kaneda
Discovery site	Kushiro
Discovery date	17 April 1988
Designations
MPC designation	4672
Named after	Takuboku Ishikawa
Alternative names	1988 HB
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc	16397 days (44.89 yr)
Aphelion	3.3493247 AU (501.05184 Gm)
Perihelion	3.0326202 AU (453.67352 Gm)
Semi-major axis	3.190972 AU (477.3626 Gm)
Eccentricity	0.0496251
Orbital period	5.70 yr (2082.0 d)
Mean anomaly	268.53883°
Mean motion	0° 10^m 22.475^s / day
Inclination	15.52345°
Longitude of ascending node	91.75676°
Argument of perihelion	174.16909°
Earth MOID	2.01544 AU (301.506 Gm)
Jupiter MOID	1.74886 AU (261.626 Gm)
Jupiter Tisserand parameter	3.138
Physical characteristics
Mean radius	17.795 ± 0.95 km
Geometric albedo	0.0609 ± 0.007
Absolute magnitude (H)	11.4

4672 Takuboku (1988 HB) is a main-belt asteroid discovered on April 17, 1988 by Seiji Ueda and Hiroshi Kaneda at Kushiro. It was named after the Japanese poet Takuboku Ishikawa (1886–1912).^[2]

References

1. "4672 Takuboku (1988 HB)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 14 April 2016.
2. Meanings of asteroid names (4501-5000). See also: Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names. Springer, 5th ed. (ISBN 3-540-00238-3). "(4672) Takuboku", p. 402.

External links

• JPL Small-Body Database Browser on 4672 Takuboku
• 4672 Takuboku at the JPL Small-Body Database

• Discovery · Orbit diagram · Orbital elements · Physical parameters