1118 Hanskya

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1118 Hanskya
001118-asteroid shape model (1118) Hanskya.png
Shape model of Hanskya from its lightcurve
Discovery [1]
Discovered by S. Belyavskyj
N. Ivanov
Discovery site Simeiz Obs.
Discovery date29 August 1927
Designations
(1118) Hanskya
Named after
 Alexis Hansky
(Russian astronomer) [2]
1927 QD ·1930 DK
1935 BM
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc 89.83 yr (32,810 days)
Aphelion 3.3560 AU
Perihelion 3.0694 AU
3.2127 AU
Eccentricity 0.0446
5.76 yr (2,103 days)
306.45°
0° 10m 16.32s / day
Inclination 13.952°
318.76°
335.05°
Physical characteristics
Mean diameter
70.954±0.220 km [6]
75.495±1.037 km [7]
77.03 km (derived) [8]
77.20±1.7 km [9]
79.80±1.04 km [10]
82.14±23.50 km [11]
82.70±28.83 km [12]
90.29±0.59 km [13]
15.61±0.01  h [14]
0.029±0.005 [13]
0.03±0.06 [12]
0.0358 (derived) [8]
0.04±0.02 [11]
0.045±0.001 [10]
0.0470±0.002 [9]
0.0491±0.0084 [7]
0.056±0.003 [6]
C [8]
9.5 [7] [9] [10]  ·9.70 [13]  ·9.710±0.002(R) [15]  ·9.80 [8] [11]  ·9.9 [1]  ·9.97 [12]

    1118 Hanskya (prov. designation: 1927 QD) is a large background asteroid, approximately 77 kilometers (48 miles) in diameter, located in the outer regions of the asteroid belt. Discovered by Sergey Belyavsky and Nikolaj Ivanov in 1927, it was named after Russian astronomer Aleksey Hansky. The presumed dark C-type asteroid has a rotation period of 15.6 hours.

    Contents

    Discovery

    Hanskya was discovered on 29 August 1927, by Russian astronomers Sergey Belyavsky and Nikolaj Ivanov at the Simeiz Observatory on the Crimean peninsula. [3] The asteroid was independently discovered by two other prolific astronomers in the field, namely Karl Reinmuth at the German Heidelberg Observatory – who observed the body only one day later and announced it first – and by Belgian astronomer Eugène Delporte at Uccle Observatory on 17 September. [2]

    Orbit and classification

    Hanskya is a non-family asteroid of the main belt's background population when applying the hierarchical clustering method to its proper orbital elements. [4] [5] It orbits the Sun in the outer asteroid belt at a distance of 3.1–3.4  AU once every 5 years and 9 months (2,103 days). Its orbit has an eccentricity of 0.04 and an inclination of 14° with respect to the ecliptic. [1]

    The body's observation arc begins at Heidelberg or Simeiz one night after its official discovery observation. [3]

    Naming

    This minor planet was named on the 25th anniversary of the death of Russian Aleksey Hansky (1870–1908), whose initiative lead to the construction of the discovering Simeiz Observatory. [2]

    Physical characteristics

    Hanskya is an assumed carbonaceous C-type asteroid. [8]

    Rotation period

    In October 21010, a rotational lightcurve of Hanskya was obtained from photometric observations at the Sunflower Observatory in Kansas, United States ( 739 ). Lightcurve analysis gave a rotation period of 15.61 hours with a brightness amplitude of 0.18 magnitude ( U=2 ). [14]

    More recent observations at the Palomar Transient Factory and by French amateur astronomer René Roy gave a longer period of 25.31 and 25.3481 hours and an amplitude of 0.38 and 0.25, respectively ( U=2/2 ). [16] [15]

    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, Hanskya measures between 70.954 and 90.29 kilometers in diameter and its surface has an albedo between 0.029 and 0.056. [6] [7] [9] [10] [11] [12] [13]

    The Collaborative Asteroid Lightcurve Link derives a low albedo of 0.0358 and a diameter of 77.03 kilometers based on an absolute magnitude of 9.8. [8]

    Related Research Articles

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    <span class="mw-page-title-main">1135 Colchis</span>

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    1123 Shapleya, provisional designation 1928 ST, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 11 kilometers in diameter. It was discovered on 21 September 1928, by Russian astronomer Grigory Neujmin at Simeiz Observatory on the Crimean peninsula. It was named after American astronomer Harlow Shapley.

    <span class="mw-page-title-main">1129 Neujmina</span>

    1129 Neujmina is an Eos asteroid from the outer regions of the asteroid belt. It was discovered on 8 August 1929, by astronomer Praskoviya Parchomenko at the Simeiz Observatory on the Crimean peninsula. The stony S-type asteroid has a rotation period of 5.1 hours and measures approximately 34 kilometers in diameter. It was named after Soviet astronomer Grigory Neujmin.

    1151 Ithaka, provisional designation 1929 RK, is a carbonaceous asteroid from the inner regions of the asteroid belt, approximately 14 kilometers in diameter. It was discovered by Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in 1929, and later named for the Greek island of Ithaca.

    <span class="mw-page-title-main">1848 Delvaux</span>

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    1309 Hyperborea is a carbonaceous background asteroid from the outermost regions of the asteroid belt, approximately 57 kilometers in diameter. It was discovered on 11 October 1931, by Soviet astronomer Grigory Neujmin at the Simeiz Observatory on the Crimean peninsula, and given the provisional designation 1931 TO. The asteroid was named after Hyperborea, the northern homeland of a Greek mythical race of giants.

    1271 Isergina, provisional designation 1931 TN, is a carbonaceous background asteroid from the outer regions of the asteroid belt, approximately 45 kilometers in diameter. It was discovered on 10 October 1931, by Soviet astronomer Grigory Neujmin at the Simeiz Observatory on the Crimean peninsula. The asteroid was named after Crimean physician and friend of the discoverer, Pyotr Isergin.

    1469 Linzia, provisional designation 1938 QD, is a dark asteroid from the outer regions of the asteroid belt, approximately 60 kilometers in diameter. Discovered by Karl Reinmuth at Heidelberg Observatory in 1938, the asteroid was later named after the Austrian city of Linz.

    1303 Luthera, provisional designation 1928 FP, is a dark asteroid and the parent body of the Luthera family, located in the outermost regions of the asteroid belt. It measures approximately 90 kilometers in diameter. The asteroid was discovered on 16 March 1928, by astronomer Friedrich Schwassmann at the Bergedorf Observatory in Hamburg, Germany, and later named after German astronomer Robert Luther.

    1347 Patria, provisional designation 1931 VW, is a carbonaceous asteroid from the background population of the central asteroid belt, approximately 32 kilometers in diameter. It was discovered on 6 November 1931, by Soviet astronomer Grigory Neujmin at the Simeiz Observatory on the Crimean peninsula. The asteroid was named for the Latin word of fatherland.

    <span class="mw-page-title-main">1518 Rovaniemi</span>

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    1306 Scythia, provisional designation 1930 OB, is a dark Ursula asteroid from the outer regions of the asteroid belt, approximately 72 kilometers in diameter. It was discovered on 22 July 1930, by Soviet astronomer Grigory Neujmin at the Simeiz Observatory on the Crimean peninsula. The asteroid was named for the historic region of Scythia.

    <span class="mw-page-title-main">1648 Shajna</span>

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    1692 Subbotina, provisional designation 1936 QD, is a dark background asteroid from the central region of the asteroid belt, approximately 37 kilometers in diameter. The carbonaceous Cg-type asteroid has a rotation period of 9.2 hours. It was discovered by Grigory Neujmin at the Crimean Simeiz Observatory in 1936, and later named after Soviet mathematician and astronomer Mikhail Subbotin.

    <span class="mw-page-title-main">1189 Terentia</span> Asteroid

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    References

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    2. 1 2 3 Schmadel, Lutz D. (2007). "(1118) Hanskya". Dictionary of Minor Planet Names – (1118) Hanskya. Springer Berlin Heidelberg. p. 95. doi:10.1007/978-3-540-29925-7_1119. ISBN   978-3-540-00238-3.
    3. 1 2 3 "1118 Hanskya (1927 QD)". Minor Planet Center. Retrieved 29 August 2017.
    4. 1 2 "Asteroid 1118 Hanskya – Proper Elements". AstDyS-2, Asteroids – Dynamic Site. Retrieved 13 March 2020.
    5. 1 2 "Asteroid 1118 Hanskya". Small Bodies Data Ferret. Retrieved 13 March 2020.
    6. 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 . Retrieved 14 September 2016.
    7. 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. S2CID   35447010.
    8. 1 2 3 4 5 6 "LCDB Data for (1118) Hanskya". Asteroid Lightcurve Database (LCDB). Retrieved 14 September 2016.
    9. 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. 12: IRAS-A-FPA-3-RDR-IMPS-V6.0. Bibcode:2004PDSS...12.....T . Retrieved 22 October 2019.
    10. 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)
    11. 1 2 3 4 Nugent, C. R.; Mainzer, A.; Masiero, J.; Bauer, J.; Cutri, R. M.; Grav, T.; et al. (December 2015). "NEOWISE Reactivation Mission Year One: Preliminary Asteroid Diameters and Albedos". The Astrophysical Journal. 814 (2): 13. arXiv: 1509.02522 . Bibcode:2015ApJ...814..117N. doi:10.1088/0004-637X/814/2/117. S2CID   9341381 . Retrieved 29 August 2017.
    12. 1 2 3 4 Nugent, C. R.; Mainzer, A.; Bauer, J.; Cutri, R. M.; Kramer, E. A.; Grav, T.; et al. (September 2016). "NEOWISE Reactivation Mission Year Two: Asteroid Diameters and Albedos". The Astronomical Journal. 152 (3): 12. arXiv: 1606.08923 . Bibcode:2016AJ....152...63N. doi: 10.3847/0004-6256/152/3/63 .
    13. 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. S2CID   46350317 . Retrieved 14 September 2016.
    14. 1 2 Robinson, L. E. (June 2002). "Lightcurve Photometry of 551 Ortrud, 1118 Hanskya, and 1916 Boreas from Sunflower Observatory". The Minor Planet Bulletin. 29: 37–38. Bibcode:2002MPBu...29...37R . Retrieved 14 September 2016.
    15. 1 2 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: 1504.04041 . Bibcode:2015AJ....150...75W. doi:10.1088/0004-6256/150/3/75. S2CID   8342929 . Retrieved 14 September 2016.
    16. ↑ Behrend, Raoul. "Asteroids and comets rotation curves – (1118) Hanskya". Geneva Observatory . Retrieved 14 September 2016.
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