13474 V'yus

Last updated
13474 V'yus
Discovery [1]
Discovered by T. Smirnova
Discovery site Crimean Astrophysical Obs.
Discovery date29 August 1973
Designations
(13474) V'yus
Named after
Yurij Sergeevich Vasil'ev
(Rector of SPbSTU) [2]
1973 QO1 ·1956 SA
1990 RT4
main-belt [1] [3]  ·(middle) [4]
background [5] [6]
Orbital characteristics [3]
Epoch 27 April 2019 (JD 2458600.5)
Uncertainty parameter 0
Observation arc 61.56 yr (22,485 d)
Aphelion 3.3863 AU
Perihelion 1.8591 AU
2.6227 AU
Eccentricity 0.2911
4.25 yr (1,551 d)
267.15°
0° 13m 55.2s / day
Inclination 7.8141°
317.29°
36.160°
Physical characteristics
Mean diameter
6.922±0.351  km [7] [8]
7.876±0.701 km [5]
6.587±0.001  h [9]
0.113±0.022 [5]
0.147±0.020 [7] [8]
S/C (assumed) [4]
13.5 [8]
13.7 [1] [3]

    13474 V'yus, provisional designation 1973 QO1, is a background asteroid from the central asteroid belt, approximately 7 kilometers (4.3 miles) in diameter. It was discovered on 29 August 1973, by Soviet astronomer Tamara Smirnova at the Crimean Astrophysical Observatory in Nauchnyj on the Crimean peninsula. [1] The asteroid has a rotation period of 6.6 hours and is likely elongated in shape. [4] It was named after Yurij Sergeevich Vasil'ev, rector of the former Saint Petersburg State Technical University in Russia. [1]

    Contents

    Orbit and classification

    V'yus is a non-family asteroid from the main belt's background population. [5] [6] It orbits the Sun in the central asteroid belt at a distance of 1.9–3.4  AU once every 4 years and 3 months (1,551 days; semi-major axis of 2.62 AU). Its orbit has an eccentricity of 0.29 and an inclination of 8° with respect to the ecliptic. [3]

    The body's observation arc begins with its first identification as 1956 SA at Goethe Link Observatory in September 1956, almost 17 years prior to its official discovery observation at Nauchnyj. [1]

    Naming

    This minor planet was named after Yurij Sergeevich Vasil'ev (Yurij Vasilyev; born 1929), expert in hydropower engineering and rector of the Saint Petersburg State Technical University (SPbSTU), now known as the Peter the Great St. Petersburg Polytechnic University in Russia. [2] The official naming citation was published by the Minor Planet Center on 27 April 2002 ( M.P.C. 45338). [10]

    Physical characteristics

    The asteroid's spectral type is unknown. The Lightcurve Data Base assumes an S- or C-type to be equally likely, using an averaged value for its albedo (see below). [4] [lower-alpha 1]

    Rotation period

    In September 2007, a rotational lightcurve of V'yus was obtained from photometric observations by Maurice Clark at the Montgomery College Observatory in Maryland, United States. Lightcurve analysis gave a well-defined rotation period of 6.587 hours with a brightness amplitude of 0.85 magnitude ( U=3 ). [9] A high brightness amplitude typically indicates that the body has an elongated rather than spherical shape.

    Diameter and albedo

    According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, V'yus measures 6.922 and 7.876 kilometers in diameter and its surface has an albedo of 0.147 and 0.113, respectively. [7] [8] [5] The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.10 – a compromise value between the stony (0.20) and carbonaceous (0.057) asteroid's, both abundant in the main belt's central region – and calculates a diameter of 7.65 kilometers based on an absolute magnitude of 13.7. [4]

    Notes

    1. ↑ Asteroid Lightcurve Data Base (LCDB) – 2. Taxonomic Class, orbital class, and albedo. The LCDB generically assumes an S/C-type with an albedo of 0.10 for non-family main belt asteroids with a semi-major axis between 2.6 and 2.7.

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    References

    1. 1 2 3 4 5 6 "13474 V'yus (1973 QO1)". Minor Planet Center. Retrieved 16 January 2019.
    2. 1 2 Schmadel, Lutz D. (2007). "(13474) V'yus". Dictionary of Minor Planet Names – (13474) V'yus. Springer Berlin Heidelberg. p. 800. doi:10.1007/978-3-540-29925-7_8828. ISBN   978-3-540-00238-3.
    3. 1 2 3 4 "JPL Small-Body Database Browser: 13474 V'yus (1973 QO1)" (2018-04-20 last obs.). Jet Propulsion Laboratory . Retrieved 16 January 2019.
    4. 1 2 3 4 5 "LCDB Data for (13474) V'yus". Asteroid Lightcurve Database (LCDB). Retrieved 19 October 2017.
    5. 1 2 3 4 5 "Asteroid 13474 V'yus". Small Bodies Data Ferret. Retrieved 16 January 2019.
    6. 1 2 "Asteroid (13474) V'yus – Proper elements". AstDyS-2, Asteroids – Dynamic Site. Retrieved 16 January 2019.
    7. 1 2 3 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Dailey, J.; et al. (November 2011). "Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters". The Astrophysical Journal. 741 (2): 20. arXiv: 1109.4096 . Bibcode:2011ApJ...741...68M. doi:10.1088/0004-637X/741/2/68 . Retrieved 19 October 2017.
    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 Clark, Maurice (October 2008). "Asteroid Lightcurve Observations". The Minor Planet Bulletin. 35 (4): 152–154. Bibcode:2008MPBu...35..152C. ISSN   1052-8091 . Retrieved 19 October 2017.
    10. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 19 October 2017.

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