3425 Hurukawa

3425 Hurukawa
Discovery [1]
Discovered by K. Reinmuth
Discovery site Heidelberg Obs.
Discovery date 29 January 1929
Designations
MPC designation 3425 Hurukawa
Named after
 Kiichirō Furukawa
(astronomer)[2]
1929 BD · 1951 GB
1971 DJ1 · 1978 PN
1979 SG1 · 1981 DW3
A903 CB
main-belt · Eos [3]
Orbital characteristics [1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 112.96 yr (41,258 days)
Aphelion 3.2557 AU
Perihelion 2.7469 AU
3.0013 AU
Eccentricity 0.0848
5.20 yr (1,899 days)
350.38°
0° 11m 22.56s / day
Inclination 9.2114°
291.52°
135.02°
Physical characteristics
Dimensions 21.21±0.38 km[4]
25.25 km (derived)[3]
25.36±2.8 km[5]
25.4 km[1]
27.81±0.54 km[6]
16 h[7]
24.8158±0.0402 h[8]
24.84±0.01 h[7]
0.100±0.004[6]
0.1103 (derived)[3]
0.1315[5]
0.171±0.026[4]
S [3]
10.75±0.27[9]
10.8[5]
10.837±0.002 (R)[8]
10.9[4][6]
11.0[1][3]

    3425 Hurukawa, provisional designation 1929 BD, is a stony Eos asteroid from the outer region of the asteroid belt, approximately 25 kilometers in diameter. It was discovered by German astronomer Karl Reinmuth at Heidelberg Observatory on 29 January 1929.[10]

    The asteroid is a member of the Eos family, an orbital group of more than 4,000 asteroids, which are well known for mostly being of a stony S-type composition with relatively high albedos. It orbits the Sun at a distance of 2.7–3.3 AU once every 5 years and 2 months (1,899 days). Its orbit has an eccentricity of 0.08 and an inclination of 9° with respect to the ecliptic.[1] The first precovery was taken at the discovering observatory in 1903, extending the asteroid's observation arc by 26 years prior to its discovery.[10]

    A rotational light-curve was obtained for this asteroid from photometric observations taken by French astronomer Raymond Poncy in September 2005. It gave a well-defined, slightly longer-than-average rotation period of 24.84±0.01 hours with a brightness variation of 0.47 in magnitude (U=3-).[7] The period was confirmed by observations taken at the U.S. Palomar Transient Factory in August 2010, which rendered a period of 24.8158±0.0402 hours and an amplitude of 0.17 (U=2),[8] superseding a third period of 16 hours from a fragmentary light-curve obtained by French astronomer René Roy in 2007 (U=1).[7]

    According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, the asteroid measures between 21.3 and 27.8 kilometers in diameter and its surface has an untypically low albedo between 0.10 and 0.17.[4][5][6] The Collaborative Asteroid Lightcurve Link derives an albedo of 0.11 and a diameter of 25.3 kilometers.[3]

    The minor planet was named in honor of Japanese Kiichirō Furukawa (1929–2016), who was an astronomer at Tokyo Astronomical Observatory and an observer and discoverer of minor planets himself.[2] Naming citation was published on 16 December 1986 (M.P.C. 11443).[11]

    References

    1. 1 2 3 4 5 "JPL Small-Body Database Browser: 3425 Hurukawa (1929 BD)" (2016-01-17 last obs.). Jet Propulsion Laboratory. Retrieved 19 July 2016.
    2. 1 2 Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (3425) Hurukawa. Springer Berlin Heidelberg. p. 286. ISBN 978-3-540-00238-3. Retrieved 19 July 2016.
    3. 1 2 3 4 5 6 "LCDB Data for (3425) Hurukawa". Asteroid Lightcurve Database (LCDB). Retrieved 19 July 2016.
    4. 1 2 3 4 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Nugent, C.; et al. (November 2012). "Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids". The Astrophysical Journal Letters. 759 (1): 5. arXiv:1209.5794Freely accessible. Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8. Retrieved 19 July 2016.
    5. 1 2 3 4 Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (October 2004). "IRAS Minor Planet Survey V6.0". NASA Planetary Data System. Bibcode:2004PDSS...12.....T. Retrieved 19 July 2016.
    6. 1 2 3 4 Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; Ootsubo, Takafumi; et al. (October 2011). "Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey". Publications of the Astronomical Society of Japan. 63 (5): 1117–1138. Bibcode:2011PASJ...63.1117U. doi:10.1093/pasj/63.5.1117. Retrieved 19 July 2016.
    7. 1 2 3 4 Behrend, Raoul. "Asteroids and comets rotation curves – (3425) Hurukawa". Geneva Observatory. Retrieved 19 July 2016.
    8. 1 2 3 Waszczak, Adam; Chang, Chan-Kao; Ofek, Eran O.; Laher, Russ; Masci, Frank; Levitan, David; et al. (September 2015). "Asteroid Light Curves from the Palomar Transient Factory Survey: Rotation Periods and Phase Functions from Sparse Photometry". The Astronomical Journal. 150 (3): 35. arXiv:1504.04041Freely accessible. Bibcode:2015AJ....150...75W. doi:10.1088/0004-6256/150/3/75. Retrieved 19 July 2016.
    9. ↑ Veres, Peter; Jedicke, Robert; Fitzsimmons, Alan; Denneau, Larry; Granvik, Mikael; Bolin, Bryce; et al. (November 2015). "Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results". Icarus. 261: 34–47. arXiv:1506.00762Freely accessible. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. Retrieved 19 July 2016.
    10. 1 2 "3425 Hurukawa (1929 BD)". Minor Planet Center. Retrieved 19 July 2016.
    11. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 19 July 2016.

    External links

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