1709 Ukraina

1709 Ukraina, provisional designation 1925 QA, is a stony asteroid from the inner regions of the asteroid belt, approximately 9 kilometers in diameter. It was discovered on 16 August 1925, by Soviet astronomer Grigory Shajn at Simeiz Observatory on the Crimean peninsula.[10] It was named in honor of Ukraine.[2]

1709 Ukraina
Lightcurve-based 3D-model of Ukraina
Discovery [1]
Discovered byG. Shajn
Discovery siteSimeiz Obs.
Discovery date16 August 1925
Designations
(1709) Ukraina
Named after
Ukraine (former Soviet state)[2]
1925 QA · 1936 QH
main-belt · (inner) [3]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc91.69 yr (33,488 days)
Aphelion2.8870 AU
Perihelion1.8702 AU
2.3786 AU
Eccentricity0.2137
3.67 yr (1,340 days)
22.534°
0° 16m 7.32s / day
Inclination7.5550°
300.07°
42.615°
Physical characteristics
Dimensions8.15 km (derived)[3]
9.444±1.398 km[4]
10.79±0.22 km[5]
7.28 h[6]
7.300±0.003 h[7]
7.30517±0.00005 h[8]
0.123±0.006[5]
0.196±0.033[4]
0.20 (assumed)[3]
S [3][6][9]
B–V = 0.990[1]
12.51[4] · 12.62±0.64[9] · 12.75[1][5] · 12.81[3][6]

    Orbit and classification

    Ukraina orbits the Sun in the inner main-belt at a distance of 1.9–2.9 AU once every 3 years and 8 months (1,340 days). Its orbit has an eccentricity of 0.21 and an inclination of 8° with respect to the ecliptic.[1]

    The body's observation arc begins at Heidelberg, five days after its official discovery observation at Simeiz.[10]

    Physical characteristics

    The S-type asteroid has an albedo of about 0.2[4] and a rotation period of 7.3 hours.[7][8]

    Naming

    This minor planet was named after the country Ukraine, then the Ukrainian Soviet Socialist Republic (1922–1991). The name was proposed by the Institute of Theoretical Astronomy in Leningrad, what is now St. Petersburg.[2] The official naming citation was published by the Minor Planet Center on 1 June 1967 (M.P.C. 2740).[11]

    References
    1. "JPL Small-Body Database Browser: 1709 Ukraina (1925 QA)" (2017-04-26 last obs.). Jet Propulsion Laboratory. Retrieved 7 June 2017.
    2. Schmadel, Lutz D. (2007). "(1709) Ukraina". Dictionary of Minor Planet Names – (1709) Ukraina. Springer Berlin Heidelberg. p. 136. doi:10.1007/978-3-540-29925-7_1710. ISBN 978-3-540-00238-3.
    3. "LCDB Data for (1709) Ukraina". Asteroid Lightcurve Database (LCDB). Retrieved 18 December 2016.
    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 18 December 2016.
    5. 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 17 October 2019. (online, AcuA catalog p. 153)
    6. Binzel, R. P. (October 1987). "A photoelectric survey of 130 asteroids". Icarus. 72 (1): 135–208. Bibcode:1987Icar...72..135B. doi:10.1016/0019-1035(87)90125-4. ISSN 0019-1035. Retrieved 18 December 2016.
    7. Behrend, Raoul. "Asteroids and comets rotation curves – (1709) Ukraina". Geneva Observatory. Retrieved 18 December 2016.
    8. Hanus, J.; Durech, J.; Broz, M.; Warner, B. D.; Pilcher, F.; Stephens, R.; et al. (June 2011). "A study of asteroid pole-latitude distribution based on an extended set of shape models derived by the lightcurve inversion method". Astronomy & Astrophysics. 530: 16. arXiv:1104.4114. Bibcode:2011A&A...530A.134H. doi:10.1051/0004-6361/201116738. Retrieved 18 December 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:1506.00762. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. Retrieved 18 December 2016.
    10. "1709 Ukraina (1925 QA)". Minor Planet Center. Retrieved 18 December 2016.
    11. Schmadel, Lutz D. (2009). "Appendix – Publication Dates of the MPCs". Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008). Springer Berlin Heidelberg. p. 221. doi:10.1007/978-3-642-01965-4. ISBN 978-3-642-01964-7.

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