1936 Lugano

1936 Lugano
Discovery [1]
Discovered by P. Wild
Discovery site Zimmerwald Obs.
Discovery date 24 November 1973
Designations
MPC designation 1936 Lugano
Named after
Lugano (city)[2]
1973 WD · 1936 LC
1949 KE1 · 1951 WX
1964 VA1 · 1970 AG1
1970 AL1 · 1970 CD
main-belt
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 60.11 yr (21956 days)
Aphelion 3.0402 AU (454.81 Gm)
Perihelion 2.3129 AU (346.00 Gm)
2.6766 AU (400.41 Gm)
Eccentricity 0.13586
4.38 yr (1599.4 d)
156.56°
 13m 30.288s / day
Inclination 10.253°
265.19°
254.98°
Earth MOID 1.34766 AU (201.607 Gm)
Jupiter MOID 2.09201 AU (312.960 Gm)
Jupiter Tisserand parameter 3.342
Physical characteristics
Dimensions 24.8 km (2004)[3]
28.0 km (2011)[4]
33.7 km (2011)[5]
Mean radius
12.405 ± 0.4 km
19.651 h (0.8188 d)[1][6]
0.1042 (2004)[3]
0.093 (2011)[4]
0.0294 (2011)[5]
0.1042 ± 0.008[1]
SMASS = Ch
11.8

    1936 Lugano, provisional designation 1973 WD, is a dark asteroid from the asteroid belt about 30 kilometers in diameter. It was discovered on November 24, 1973 by astronomer Paul Wild at Zimmerwald Observatory near Bern, Switzerland.[7] It orbits the Sun at a distance of 2.3–3.0 AU once every 4 years and 4 months (1,599 days)[1] and has a rotation period of nearly 20 hours.[6]

    Observations of the carbonaceous Ch-type asteroid have resulted in a lower albedo and hence larger diameter than previously estimated. While in 2004, the Supplemental IRAS Minor Planet Survey (SIMPS) using data from the Infrared Astronomical Satellite, IRAS, gave a geometric albedo of 0.10 and a diameter of 25 kilometers,[3] more recent measurements by NEOWISE suggested the asteroid to be much darker, with an albedo of only 0.03 and a diameter of nearly 34 kilometers.[5]

    The asteroid is named after the Swiss-Italian city of Lugano, located south of the Alps and known for its mild climate. During the winter half-year of 1973/74, Paul Wild discovered three more asteroids, 1935 Lucerna, 1937 Locarno and 1938 Lausanna, which he named after the Swiss cities Lucerne, Locarno and Lausanne, respectively, composing a quartet of sequentially numbered, thematically named asteroids.[2]

    References

    1. 1 2 3 4 5 "JPL Small-Body Database Browser: 1936 Lugano (1973 WD)" (2015-07-17 last obs.). Jet Propulsion Laboratory. Retrieved 18 April 2016.
    2. 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1936) Lugano. Springer Berlin Heidelberg. p. 155. ISBN 978-3-540-29925-7. Retrieved October 2015.
    3. 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. Bibcode:2004PDSS...12.....T. Retrieved October 2015.
    4. 1 2 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 October 2015.
    5. 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 October 2015.
    6. 1 2 Behrend, Raoul; Poncy, Raymond. "Asteroids and comets rotation curves (1936) Lugano". Geneva Observatory. Retrieved October 2015.
    7. "1936 Lugano (1973 WD)". Minor Planet Center. Retrieved October 2015.

    External links


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