1074 Beljawskya

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1074 Beljawskya
Discovery [1]
Discovered by S. Belyavskyj
Discovery site Simeiz Obs.
Discovery date26 January 1925
Designations
(1074) Beljawskya
Named after
Sergey Belyavsky
(discoverer himself) [2]
1925 BE ·1949 KC1
A912 VN ·A914 BB
A917 QB ·A923 TA
main-belt  · Themis [3]
Orbital characteristics [1]
Epoch 16 February 2017 (JD 2457800.5)
Uncertainty parameter 0
Observation arc 91.32 yr (33,353 days)
Aphelion 3.7138 AU
Perihelion 2.5863 AU
3.1501 AU
Eccentricity 0.1790
5.59 yr (2,042 days)
196.05°
0° 10m 34.68s / day
Inclination 0.8006°
38.132°
22.886°
Physical characteristics
Dimensions39.91±11.13 km [4]
47.70 km (derived) [3]
47.82±2.2 km (IRAS:11) [5]
49.189±0.666 km [6]
52.28±0.96 km [7]
54.368±0.813 km [8]
6.284±0.002 h [9]
6.285±0.0035 h [10]
0.0598±0.0111 [8]
0.0646 (derived) [3]
0.066±0.003 [7]
0.073±0.008 [6]
0.0772±0.007(IRAS:11) [5]
0.08±0.03 [4]
S (assumed) [3]
10.0 [5] [7] [8]  ·10.046±0.004(R) [10]  ·10.10 [4]  ·10.2 [1] [3]  ·10.21±0.15 [11]

    1074 Beljawskya, provisional designation 1925 BE, is a Themistian asteroid from the outer region of the asteroid belt, approximately 48 kilometers in diameter.

    Contents

    It was discovered on 26 January 1925, by Soviet–Russian astronomer Sergey Belyavsky at Simeiz Observatory on the Crimean peninsula. [12] It was named in honor of its discoverer. [2]

    Orbit and classification

    Beljawskya is a member of the Themis family, a dynamical family of outer-belt asteroids with nearly coplanar ecliptical orbits. [3] It orbits the Sun at a distance of 2.6–3.7  AU once every 5 years and 7 months (2,042 days). Its orbit has an eccentricity of 0.18 and an inclination of 1° with respect to the ecliptic. [1]

    It was first identified as A912 VN at Winchester Observatory ( 799 ) in 1912. The body's observation arc begins with its identification as A923 TA at Simeiz in 1923, almost two years prior to its official discovery observation. [12]

    Physical characteristics

    Photometry

    In October 2007, a rotational lightcurve of Beljawskya was obtained by French amateur astronomer Pierre Antonini. It gave a well-defined rotation period of 6.284 hours with a brightness variation of 0.37 magnitude ( U=3 ). [9] Photometric observations in the R-band at the U.S. Palomar Transient Factory in September 2013, gave a concurring period of 6.285 hours with an amplitude of 0.32 magnitude ( U=2 ). [10]

    Diameter and albedo

    According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Beljawskya measures between 39.91 and 52.28 kilometers in diameter, and its surface has an albedo of 0.066 and 0.08 (without preliminary results). [4] [5] [6] [7]

    The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0646 and a diameter of 47.70 kilometers using an absolute magnitude of 10.2. [3] CALL also classifies the dark Themistian asteroid as a S-type rather than a C-type body. [3]

    Naming

    Proposed by staff members of the discovering Simeis Observatory, this minor planet was named in honor of its discoverer Sergey Ivanovich Belyavsky (1883–1953). He also discovered the hyperbolic comet C/1911 S3 that was visible to the naked eye. Between 1912 and 1927, he has discovered 36 numbered minor planets. [2] Naming citation was first mentioned in The Names of the Minor Planets by Paul Herget in 1955 ( H 102 ). [2]

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    References

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