3037 Alku

3037 Alku
Discovery [1]
Discovered by Y. Väisälä
Discovery site Turku Observatory
Discovery date 17 January 1944
Designations
MPC designation 3037 Alku
Named after
 A boat's name
"The beginning" in Finnish[2]
1944 BA · 1979 BH
main-belt · (middle) [3]
Orbital characteristics [1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 26157 days (71.61 yr)
Aphelion 3.1795 AU (475.65 Gm)
Perihelion 2.1656 AU (323.97 Gm)
2.6725 AU (399.80 Gm)
Eccentricity 0.18970
4.37 yr (1595.8 d)
193.75°
0° 13m 32.124s / day
Inclination 19.026°
107.81°
330.40°
Earth MOID 1.1976 AU (179.16 Gm)
Jupiter MOID 2.08871 AU (312.467 Gm)
Jupiter Tisserand parameter 3.277
Physical characteristics
Dimensions 18.91 km (IRAS: 8)[4]
26.44±0.61 km[5]
29.289±0.302 km[6]
18.84 km (derived)[3]
Mean radius
 9.455 ± 0.4 km
11.844 h (0.4935 d)[7]
0.1131 (IRAS: 8)[4]
0.061±0.003[5]
0.0343±0.0090[6]
0.0949 (derived)[3]
SMASS = C
C [3]
11.8[1]

    3037 Alku, provisional designation 1944 BA, is a carbonaceous asteroid from the middle region of the asteroid belt, about 20 kilometers in diameter. It was discovered on 17 January 1944, by Finnish astronomer Yrjö Väisälä at Turku Observatory in Southwest Finland.[8]

    The C-type asteroid orbits the Sun at a distance of 2.2–3.2 AU once every 4 years and 4 months (1,596 days). Its orbit shows an eccentricity of 0.19 and is tilted by 19 degrees to the plane of the ecliptic.

    Photometric measurements of the asteroid made in 2005 at the U.S. Palmer Divide Observatory in Colorado showed a light-curve with a rotation period of 11.8 hours and a brightness variation of 0.08 in magnitude.[7] It has an albedo in the range of 0.03–0.11, according to the surveys carried out by the Infrared Astronomical Satellite, IRAS, the Japanese Akari satellite, and the Wide-field Infrared Survey Explorer.[4][5][6] The Collaborative Asteroid Lightcurve Link derives an intermediate albedo of 0.09.[3]

    The minor planet was named for the boat the discoverer enjoyed in his boyhood. It was built by the father of the discoverer and instilled in him a lifelong love of sailing. In the Finnish language, the boat's name means "the beginning".[2]

    References

    1. 1 2 3 "JPL Small-Body Database Browser: 3037 Alku (1944 BA)" (2015-08-29 last obs.). Jet Propulsion Laboratory. Retrieved 14 April 2016.
    2. 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (3037) Alku. Springer Berlin Heidelberg. p. 250. ISBN 978-3-540-29925-7. Retrieved December 2015.
    3. 1 2 3 4 5 "LCDB Data for (3037) Alku". Asteroid Lightcurve Database (LCDB). Retrieved December 2015.
    4. 1 2 3 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 December 2015.
    5. 1 2 3 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 December 2015.
    6. 1 2 3 Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results". The Astrophysical Journal 741 (2): 25. arXiv:1109.6407. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved December 2015.
    7. 1 2 Warner, Brian D. (September 2005). "Asteroid lightcurve analysis at the Palmer Divide Observatory - winter 2004-2005". The Minor Planet Bulletin 32 (3): 54–58. Bibcode:2005MPBu...32...54W. ISSN 1052-8091. Retrieved December 2015.
    8. ↑ "3037 Alku (1944 BA)". Minor Planet Center. Retrieved December 2015.

    External links


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