1517 Beograd

1517 Beograd
Discovery [1]
Discovered by M. B. Protitch
Discovery site Belgrade Observatory
Discovery date 20 March 1938
Designations
MPC designation 1517 Beograd
Named after
 Belgrade
(capital city)[2]
1938 FD · 1931 VF
1934 JF · 1935 ST
1942 CD · 1952 JG
1952 KM1 · 1971 VT
1978 EW6
main-belt (outer) [3]
Padua family[4][5]
Orbital characteristics [1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 83.93 yr (30656 days)
Aphelion 2.8393 AU (424.75 Gm)
Perihelion 2.5948 AU (388.18 Gm)
2.7170 AU (406.46 Gm)
Eccentricity 0.044982
4.48 yr (1635.9 d)
70.833°
0° 13m 12.252s / day
Inclination 5.2769°
63.890°
232.10°
Earth MOID 1.58252 AU (236.742 Gm)
Jupiter MOID 2.23539 AU (334.410 Gm)
Jupiter Tisserand parameter 3.353
Physical characteristics
Dimensions 36.16 km[6]
37.90±0.48 km[7]
42.003±0.213 km[8]
Mean radius
 18.08±0.95 km
6.943 h (0.2893 d)[1][9]
6.9490±0.0006 h[10]
0.0491[6]
0.045±0.001[7]
0.0364±0.0021[8]
0.0491±0.005[1]
SMASS = X
X [3]
11.10[1]

    1517 Beograd, provisional designation 1938 FD, is an asteroid from the outer region of the asteroid belt, about 36 kilometers in diameter. It was discovered by Serbian astronomer Milorad B. Protić at Belgrade Astronomical Observatory on 20 March 1938.[11]

    The asteroid orbits the Sun at a distance of 2.6–2.8 AU once every 4 years and 6 months (1,636 days). Its orbit shows an eccentricity of 0.04 and is tilted by 5 degrees to the plane of the ecliptic. It has a rotation period of 6.9 hours[9][10] and an albedo between 0.04 and 0.05, according to the space-based surveys carried out by the Infrared Astronomical Satellite, IRAS, the Japanese Akari satellite, and the Wide-field Infrared Survey Explorer and subsequent NEOWISE mission.[6][7][8]

    The X-type asteroid is classified as a member of the Padua family, an asteroid family at least 25 million years old, consisting of mostly X-type asteroids, that were previously associated to 110 Lydia, the namesake of the Lydia family. Together with the Agnia family, the Padua family is the only other family to have most of its members in a nonlinear secular resonance configuration with more than 75% of its members in a z1 librating state.[4][5]

    The minor planet was named by the discoverer in honor of his native city and the capital of his country, Belgrade.[2]

    References

    1. 1 2 3 4 5 "JPL Small-Body Database Browser: 1517 Beograd (1938 FD)" (2015-10-23 last obs.). Jet Propulsion Laboratory. Retrieved 27 April 2016.
    2. 1 2 Schmadel, Lutz D. (2003). "(1517) Beograd". Dictionary of Minor Planet Names – (1517) Beograd. Springer Berlin Heidelberg. p. 121. doi:10.1007/978-3-540-29925-7_1518. ISBN 978-3-540-29925-7. Retrieved December 2015.
    3. 1 2 "LCDB Data for (1517) Beograd". Asteroid Lightcurve Database (LCDB). Retrieved December 2015.
    4. 1 2 Carruba, V. (May 2009). "The (not so) peculiar case of the Padua family". Monthly Notices of the Royal Astronomical Society 395 (1): 358–377. Bibcode:2009MNRAS.395..358C. doi:10.1111/j.1365-2966.2009.14523.x. Retrieved December 2015.
    5. 1 2 V. Carruba; R. C. Domingos; D. Nesvorný; F. Roig; M. E. Huaman; D. Souami (2013). "A multi-domain approach to asteroid families identification". Monthly Notices of the Royal Astronomical Society 433 (3): 2075. arXiv:1305.4847. Bibcode:2013MNRAS.433.2075C. doi:10.1093/mnras/stt884. :10
    6. 1 2 3 Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (October 2004). "IRAS Minor Planet Survey V6.0". NASA Planetary Data System 12. Bibcode:2004PDSS...12.....T. Retrieved December 2015.
    7. 1 2 3 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 December 2015.
    8. 1 2 3 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. Retrieved December 2015.
    9. 1 2 Behrend, Raoul. "Asteroids and comets rotation curves – (1517) Beograd". Geneva Observatory. Retrieved December 2015.
    10. 1 2 Benishek, Vladimir; Pilcher, Frederick (October 2014). "Rotation Period Determination for the Main-belt Asteroid 1517 Beograd". The Minor Planet Bulletin 41 (4): 263–264. Bibcode:2014MPBu...41..263B. ISSN 1052-8091. Retrieved December 2015.
    11. ↑ "1517 Beograd (1938 FD)". Minor Planet Center. Retrieved December 2015.

    External links


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