1544 Vinterhansenia

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1544 Vinterhansenia
Discovery [1]
Discovered by L. Oterma
Discovery site Turku Obs.
Discovery date15 October 1941
Designations
(1544) Vinterhansenia
Named after
 Julie Vinter Hansen
(astronomer) [2]
1941 UK ·1928 DO
1937 RK ·1939 CL
1948 QT ·1974 YB
A906 DB ·A919 UB
main-belt  ·(inner) [3]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc 111.12 yr (40,586 days)
Aphelion 2.6230 AU
Perihelion 2.1227 AU
2.3729 AU
Eccentricity 0.1054
3.66 yr (1,335 days)
251.35°
0° 16m 10.56s / day
Inclination 3.3342°
59.973°
356.51°
Physical characteristics
Dimensions20.76±2.50 km [4]
21.63 km (derived) [3]
21.71±1.5 km [5]
24.29±6.90 km [6]
24.561±0.080 km [7]
26.230±0.201 km [8]
13.7±0.1 h [9]
13.77±0.01 h [10]
0.0404±0.0052 [8]
0.046±0.041 [6]
0.058±0.007 [7]
0.0599 (derived) [3]
0.06±0.01 [4]
0.0784±0.012 [5]
X [11]  · C [3]
11.7 [5] [8]  ·12.0 [1] [3]  ·12.02 [4]  ·12.05 [6]  ·12.06±0.25 [11]

    1544 Vinterhansenia, provisional designation 1941 UK, is a dark asteroid from the inner regions of the asteroid belt, approximately 22 kilometers in diameter. It was discovered on 15 October 1941, by Finnish astronomer Liisi Oterma at Turku Observatory in Southwest Finland, and named for Danish astronomer Julie Vinter Hansen. [2] [12]

    Contents

    Orbit and classification

    Vinterhansenia is classified as both C-type and X-type asteroid. [3] [11] It orbits the Sun in the inner main-belt at a distance of 2.1–2.6  AU once every 3 years and 8 months (1,335 days). Its orbit has an eccentricity of 0.11 and an inclination of 3° with respect to the ecliptic. [1] Vinterhansenia was first identified as A906 DB at Heidelberg Observatory in 1906. Its first used observation, 1928 DO, was also taken at Heidelberg in 1928, and extends the body's observation arc by 13 years prior to its official discovery observation at Turku in 1941.

    Lightcurves

    Two rotational lightcurves of Vinterhansenia were obtained from photometric observations taken by Kevin Ivarsen in October 2003, and Laurent Bernasconi in March 2005. Lightcurve analysis gave a rotation period of 13.7 and 13.77 hours with a brightness variation of 0.15 and 0.18 magnitude, respectively ( U=2/2 ). [9] [10]

    Diameter and albedo

    According to the space-based surveys carried out by the Infrared Astronomical Satellite IRAS, and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Vinterhansenia measures between 20.76 and 26.23 kilometers in diameter, and its surface has an albedo between 0.040 and 0.078. [4] [5] [6] [7] [8] The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.0599 and a diameter of 21.63 kilometers with an absolute magnitude of 12.0. [3]

    Naming

    This minor planet was named for Danish astronomer Julie Vinter Hansen (1890–1960), who worked at the Copenhagen Observatory and was director of the International Astronomical Union's telegram bureau and Editor of its Circulars (also see Central Bureau for Astronomical Telegrams) [2] The official naming citation was published by the Minor Planet Center in January 1956 ( M.P.C. 1350). [13]

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    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 1544 Vinterhansenia (1941 UK)" (2017-03-31 last obs.). Jet Propulsion Laboratory . Retrieved 30 June 2017.
    2. 1 2 3 Schmadel, Lutz D. (2007). "(1544) Vinterhansenia". Dictionary of Minor Planet Names – (1544) Vinterhansenia. Springer Berlin Heidelberg. p. 122. doi:10.1007/978-3-540-29925-7_1545. ISBN   978-3-540-00238-3.
    3. 1 2 3 4 5 6 7 "LCDB Data for (1544) Vinterhansenia". Asteroid Lightcurve Database (LCDB). Retrieved 30 December 2016.
    4. 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 .
    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. 12: IRAS-A-FPA-3-RDR-IMPS-V6.0. Bibcode:2004PDSS...12.....T . Retrieved 22 October 2019.
    6. 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 30 December 2016.
    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. S2CID   119293330 . Retrieved 30 December 2016.
    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. S2CID   35447010.
    9. 1 2 Ivarsen, Kevin; Willis, Sarah; Ingleby, Laura; Matthews, Dan; Simet, Melanie (June 2004). "CCD observations and period determination of fifteen minor planets". The Minor Planet Bulletin. 31 (2): 29–33. Bibcode:2004MPBu...31...29I. ISSN   1052-8091 . Retrieved 30 December 2016.
    10. 1 2 Behrend, Raoul. "Asteroids and comets rotation curves – (1544) Vinterhansenia". Geneva Observatory . Retrieved 30 December 2016.
    11. 1 2 3 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. S2CID   53493339 . Retrieved 30 December 2016.
    12. ↑ "1544 Vinterhansenia (1941 UK)". Minor Planet Center. Retrieved 30 December 2016.
    13. ↑ 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. Bibcode:2009dmpn.book.....S. doi:10.1007/978-3-642-01965-4. ISBN   978-3-642-01964-7.
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