1336 Zeelandia

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1336 Zeelandia
001336-asteroid shape model (1336) Zeelandia.png
Shape model of Zeelandia from its lightcurve
Discovery [1]
Discovered by H. van Gent
Discovery site Johannesburg Obs.
Discovery date9 September 1934
Designations
(1336) Zeelandia
Named after
 Zeeland [2]
(a province of the Netherlands)
1934 RW ·1929 QE
1930 XC ·1935 YF
1939 RP ·A906 YO
main-belt  ·(outer)
Koronis [3] [4]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc 112.01 yr (40,913 days)
Aphelion 3.0348 AU
Perihelion 2.6654 AU
2.8501 AU
Eccentricity 0.0648
4.81 yr (1,757 days)
117.20°
0° 12m 17.28s / day
Inclination 3.1972°
97.420°
220.01°
Physical characteristics
Dimensions 19.18±0.51 km [5]
20.99±2.1 km [3] [6]
21.441±0.132 km [7]
23.056±0.108 km [8]
23.63±3.31 km [9]
15.602 h [10]
15.624±0.001 h [11]
0.153±0.280 [9]
0.1829±0.0228 [8]
0.2183±0.052 [3] [6]
0.232±0.045 [7]
0.273±0.017 [5]
B–V = 0.810 [1]
U–B = 0.366 [1]
Tholen = S [1]
SMASS = S [1] [3]
10.66 [1] [3] [5] [6] [8]  ·10.71±0.58 [12]  ·10.79 [9]  ·10.94±0.02 [10]

    1336 Zeelandia, provisional designation 1934 RW, is a stony Koronian asteroid from the outer regions of the asteroid belt, approximately 21 kilometers in diameter. It was discovered on 9 September 1934, by Dutch astronomer Hendrik van Gent at the Union Observatory in Johannesburg, South Africa. [13] The asteroid was named for the Dutch province of Zeeland. [2]

    Contents

    Orbit and classification

    Zeelandia belongs to the Koronis family ( 605 ), [3] [4] a very large asteroid family of 6,000 known members with stony composition and nearly co-planar ecliptical orbits. [14]

    It orbits the Sun in the outer main-belt at a distance of 2.7–3.0  AU once every 4 years and 10 months (1,757 days; semi-major axis of 2.85 AU). Its orbit has an eccentricity of 0.06 and an inclination of 3° with respect to the ecliptic. [1] In October 1905, a first precovery was taken at the Lowell Observatory in Arizona. Its first identification as A906 YO was made at Taunton Observatory ( 803 ) in December 1906. The body's observation arc begins with its official discovery observation at Johannesburg in September 1934. [13]

    Physical characteristics

    Zeelandia has been characterized as a stony S-type asteroid in both the Tholen and SMASS classification. [1]

    Rotation period

    In March 2004, a rotational lightcurve of Zeelandia was obtained from photometric observations by a collaboration of American astronomers. Lightcurve analysis gave a well-defined rotation period of 15.602 hours with a brightness variation of 0.61 magnitude ( U=3 ). [10] The result was confirmed by photometrists Pierre Antonini, Federico Manzini, Julian Oey and Frederick Pilcher, as well as Hiromi and Hiroko Hamanowa, who measured a similar period of 15.624 with an amplitude of 0.50 magnitude in April 2005 ( U=3 ). [11]

    Diameter and albedo

    According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Zeelandia measures between 19.18 and 23.63 kilometers in diameter and its surface has an albedo between 0.153 and 0.273. [5] [6] [7] [8] [9]

    The Collaborative Asteroid Lightcurve Link adopts the results obtained by IRAS, that is, an albedo of 0.2183 and a diameter of 20.99 kilometers based on an absolute magnitude of 10.66. [3] [6]

    Naming

    This minor planet was named for the Dutch province of Zeeland. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 ( H 121 ). [2]

    References

    1. 1 2 3 4 5 6 7 8 9 "JPL Small-Body Database Browser: 1336 Zeelandia (1934 RW)" (2017-10-31 last obs.). Jet Propulsion Laboratory . Retrieved 28 November 2017.
    2. 1 2 3 Schmadel, Lutz D. (2007). "(1336) Zeelandia". Dictionary of Minor Planet Names. Springer Berlin Heidelberg. p. 109. doi:10.1007/978-3-540-29925-7_1337. ISBN   978-3-540-00238-3.
    3. 1 2 3 4 5 6 7 "LCDB Data for (1336) Zeelandia". Asteroid Lightcurve Database (LCDB). Retrieved 28 November 2017.
    4. 1 2 "Asteroid 1336 Zeelandia – Nesvorny HCM Asteroid Families V3.0". Small Bodies Data Ferret. Retrieved 26 October 2019.
    5. 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. (online, AcuA catalog p. 153)
    6. 1 2 3 4 5 Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (October 2004). "IRAS Minor Planet Survey V6.0". NASA Planetary Data System. 12: IRAS-A-FPA-3-RDR-IMPS-V6.0. Bibcode:2004PDSS...12.....T . Retrieved 22 October 2019.
    7. 1 2 3 Masiero, Joseph R.; Grav, T.; Mainzer, A. K.; Nugent, C. R.; Bauer, J. M.; Stevenson, R.; et al. (August 2014). "Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos". The Astrophysical Journal. 791 (2): 11. arXiv: 1406.6645 . Bibcode:2014ApJ...791..121M. doi:10.1088/0004-637X/791/2/121.
    8. 1 2 3 4 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.
    9. 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: 1209.5794 . Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8 . Retrieved 28 November 2017.
    10. 1 2 3 Slivan, Stephen M.; Binzel, Richard P.; Boroumand, Shaida C.; Pan, Margaret W.; Simpson, Christine M.; Tanabe, James T.; et al. (May 2008). "Rotation rates in the Koronis family, complete to H≈11.2". Icarus. 195 (1): 226–276. Bibcode:2008Icar..195..226S. doi:10.1016/j.icarus.2007.11.019 . Retrieved 28 November 2017.
    11. 1 2 Behrend, Raoul. "Asteroids and comets rotation curves – (1336) Zeelandia". Geneva Observatory. Retrieved 28 November 2017.
    12. ↑ 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: 1506.00762 . Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007 . Retrieved 28 November 2017.
    13. 1 2 "1336 Zeelandia (1934 RW)". Minor Planet Center. Retrieved 28 November 2017.
    14. ↑ Nesvorný, D.; Broz, M.; Carruba, V. (December 2014). "Identification and Dynamical Properties of Asteroid Families". Asteroids IV. pp. 297–321. arXiv: 1502.01628 . Bibcode:2015aste.book..297N. doi:10.2458/azu_uapress_9780816532131-ch016. ISBN   9780816532131.
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