Discovery [1] | |
---|---|
Discovered by | C. W. Tombaugh |
Discovery site | Lowell Obs. |
Discovery date | 16 March 1931 |
Designations | |
(3754) Kathleen | |
Named after | Kathleen Clifford [1] (Discoverer's granddaughter) |
1931 FM ·1925 BF 1929 WA1 ·1955 MR 1957 WH1 ·1959 CH1 1959 EC1 ·1963 WD 1977 KR ·1978 NM2 1982 DQ4 ·1985 UD4 1987 BK ·A909 HE | |
main-belt [1] [2] ·(outer) background [3] | |
Orbital characteristics [2] | |
Epoch 23 March 2018 (JD 2458200.5) | |
Uncertainty parameter 0 | |
Observation arc | 108.53 yr (39,639 d) |
Aphelion | 3.4993 AU |
Perihelion | 2.8168 AU |
3.1581 AU | |
Eccentricity | 0.1081 |
5.61 yr (2,050 d) | |
157.55° | |
0° 10m 32.16s / day | |
Inclination | 8.4535° |
110.50° | |
55.593° | |
Physical characteristics | |
Mean diameter | 53.03 km (derived) [4] 53.23±1.8 km [5] 53.699±0.248 km [6] 54.283±1.200 km [7] 57.27±0.69 km [8] 58.64±20.04 km [9] 59.367±14.24 km [10] |
11.16±0.01 h [11] 11.17±0.02 h [11] 11.18±0.01 h [12] 11.2±0.1 h [13] | |
0.0379±0.0217 [10] 0.04±0.01 [9] 0.0435(derived) [4] 0.054±0.002 [8] 0.0599±0.0072 [7] 0.061±0.006 [6] 0.0624±0.005 [5] | |
C (assumed) [4] | |
10.00 [5] [7] [8] 10.30 [9] 10.40 [2] [4] [10] | |
3754 Kathleen, provisional designation 1931 FM, is a large background asteroid from the outer regions of the asteroid belt, approximately 55 kilometers (34 miles) in diameter. It was discovered at the Lowell Observatory near Flagstaff, Arizona, on 16 March 1931, by American astronomer Clyde Tombaugh, who named it after his granddaughter Kathleen Clifford. [1] The assumed C-type asteroid has a rotation period of 11.18 hours. [4] It is the second-highest numbered main-belt asteroid larger than 50 kilometers. [14]
Kathleen is a non-family asteroid from the main belt's background population. [3] It orbits the Sun in the outer main-belt at a distance of 2.8–3.5 AU once every 5 years and 7 months (2,050 days; semi-major axis of 3.16 AU). Its orbit has an eccentricity of 0.11 and an inclination of 8° with respect to the ecliptic. [2] The body's observation arc begins with its first observations as A909 HE at Heidelberg Observatory in April 1909, nearly 22 years prior to its official discovery observation at Flagstaff. [1]
Kathleen is an assumed carbonaceous C-type asteroid. [4]
Several rotational lightcurves of Kathleen have been obtained from photometric observations since March 2004. [11] [12] [13] Analysis of the best-rated lightcurve gave a rotation period of 11.18 hours with a consolidated brightness amplitude between 0.13 and 0.20 magnitude ( U=3- ). [4] [12]
According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Kathleen measures between 53.23 and 59.367 kilometers in diameter and its surface has an albedo between 0.0379 and 0.0624. [5] [6] [7] [8] [9] [10]
The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0435 and a diameter of 53.03 kilometers based on an absolute magnitude of 10.4. [4] Besides 3925 Tretʹyakov, it is the highest numbered main-belt asteroid larger than 50 kilometers in diameter, of which there are 642 bodies in total, according to the JPL SBDB. [14]
This minor planet was named after Kathleen Willoughby Clifford, granddaughter of the discoverer Clyde Tombaugh (1906–1997). [1] The official naming citation was published by the Minor Planet Center on 28 May 1991 ( M.P.C. 18306). [15]
4349 Tibúrcio, provisional designation 1989 LX, is a dark asteroid from the central region of the asteroid belt, approximately 29 kilometers in diameter. It was discovered on 5 June 1989, by German astronomer Werner Landgraf at ESO's La Silla Observatory in northern Chile.
Arago, provisional designation 1923 OT, is a dark asteroid from the outer regions of the asteroid belt, approximately 55 kilometers in diameter. It was discovered on 5 September 1923, by Russian astronomer Sergey Belyavsky at the Simeiz Observatory on the Crimean peninsula. The asteroid was named after French mathematician François Arago.
Pawlowia, provisional designation 1923 OX, is a background asteroid from the central regions of the asteroid belt, approximately 20 kilometers in diameter. It was discovered on 5 October 1923, by Soviet astronomer Vladimir Albitsky at the Simeiz Observatory on the Crimean peninsula. The asteroid was named after Russian physiologist and Nobelist Ivan Pavlov.
1039 Sonneberga, provisional designation 1924 TL, is a dark background asteroid, approximately 34 kilometers in diameter, located in the central region of the asteroid belt. It was discovered on 24 November 1924, by German astronomer Max Wolf at Heidelberg Observatory in southwest Germany. The asteroid was named for the German city of Sonneberg, where the Sonneberg Observatory is located.
1032 Pafuri, provisional designation 1924 SA, is a dark background asteroid from the outer regions of the asteroid belt, approximately 65 kilometers in diameter. It was discovered on 30 May 1924, by English astronomer Harry Edwin Wood at the Union Observatory in Johannesburg, South Africa. The asteroid was named for the river in the Pafuri Triangle in South Africa, created by the confluence of the Limpopo and Levubu rivers. The body's spectral type and rotation period are still poorly determined.
1118 Hanskya is a large background asteroid, approximately 77 kilometers in diameter, located in the outer regions of the asteroid belt. Discovered by Sergey Belyavsky and Nikolaj Ivanov in 1927, it was named after Russian astronomer Aleksey Hansky. The presumed dark C-type asteroid has a rotation period of 15.6 hours.
1132 Hollandia, provisional designation 1929 RB1, is a stony asteroid from the middle region of the asteroid belt, approximately 27 kilometers in diameter. It was discovered on 13 September 1929, by Dutch astronomer Hendrik van Gent at Leiden Southern Station, annex to the Johannesburg Observatory in South Africa. It was named for the region Holland in the Netherlands.
1457 Ankara, provisional designation 1937 PA, is a stony asteroid from the central region of the asteroid belt, approximately 18 kilometers in diameter. It was discovered on 3 August 1937, by German astronomer Karl Reinmuth at Heidelberg Observatory in southwest Germany, and later named for the Turkish capital city of Ankara.
1815 Beethoven, provisional designation 1932 CE1, is a carbonaceous background asteroid from the outer regions of the asteroid belt, approximately 30 kilometers (19 miles) in diameter. It was discovered on 27 January 1932, by German astronomer Karl Reinmuth at the Heidelberg Observatory. The uncommon F-type asteroid seems to have a long rotation period of 54 hours (tentative). It was named after Ludwig van Beethoven.
1240 Centenaria, provisional designation 1932 CD, is a background asteroid from the outer regions of the asteroid belt, approximately 60 kilometers in diameter. It was discovered on 5 February 1932, by astronomer Richard Schorr at the Bergedorf Observatory in Hamburg, Germany. The assumed C-type asteroid has a rotation period of 11.3 hours. It was named for the 100th anniversary of the discovering observatory.
1295 Deflotte, provisional designation 1933 WD, is a carbonaceous asteroid from the outer regions of the asteroid belt, approximately 48 kilometers in diameter. It was discovered on 25 November 1933, by French astronomer Louis Boyer at the Algiers Observatory in Algeria, North Africa. The asteroid was named after the discoverer's nephew.
1555 Dejan, provisional designation 1941 SA, is an asteroid from the background population of the central regions of the asteroid belt, approximately 22 kilometers in diameter. It was discovered on 15 September 1941, by Belgian astronomer Fernand Rigaux at the Royal Observatory of Belgium in Uccle. The asteroid was named after Dejan Đurković, son of Serbian astronomer Petar Đurković.
4282 Endate, provisional designation 1987 UQ1, is an asteroid from the inner regions of the asteroid belt, approximately 10 kilometers in diameter. It was discovered on 28 October 1987, by Japanese astronomers Seiji Ueda and Hiroshi Kaneda at Kushiro Observatory (399) in Japan. It was named for amateur astronomer Kin Endate.
1541 Estonia, provisional designation 1939 CK, is an asteroid from the central regions of the asteroid belt, approximately 21 kilometers in diameter. It was discovered on 12 February 1939, by astronomer Yrjö Väisälä at the Iso-Heikkilä Observatory near Turku, Finland. The asteroid was named after the Baltic country of Estonia.
2126 Gerasimovich, provisional designation 1970 QZ, is a stony background asteroid from the inner regions of the asteroid belt, approximately 8 kilometers in diameter. It was discovered on 30 August 1970, by Soviet astronomer Tamara Smirnova at the Crimean Astrophysical Observatory in Nauchnyj, on the Crimean peninsula. The asteroid was named after Russian astronomer Boris Gerasimovich.
2173 Maresjev, provisional designation 1974 QG1, is a dark background asteroid from the outer regions of the asteroid belt, approximately 28 kilometers (17 miles) in diameter. It was discovered on 22 August 1974, by Soviet–Ukrainian astronomer Lyudmila Zhuravleva at the Crimean Astrophysical Observatory in Nauchnij, on the Crimean peninsula. It was named for Soviet war veteran Alexey Maresyev. The assumed C-type asteroid has a tentative rotation period of 11.6 hours.
1303 Luthera, provisional designation 1928 FP, is a dark asteroid and the parent body of the Luthera family, located in the outermost regions of the asteroid belt. It measures approximately 90 kilometers in diameter. The asteroid was discovered on 16 March 1928, by astronomer Friedrich Schwassmann at the Bergedorf Observatory in Hamburg, Germany, and later named after German astronomer Robert Luther.
2043 Ortutay, provisional designation 1936 TH, is a dark asteroid from the outer regions of the asteroid belt, approximately 45 kilometers in diameter. The asteroid was discovered by Hungarian astronomer György Kulin at the Konkoly Observatory, Budapest, on 12 November 1936. It was named after Hungarian ethnographer Gyula Ortutay.
2120 Tyumenia is a dark background asteroid, approximately 45 kilometers in diameter, located in the outer regions of the asteroid belt. It was discovered on 9 September 1967, by Soviet astronomer Tamara Smirnova at the Crimean Astrophysical Observatory in Nauchnyj, on the Crimean peninsula. The asteroid was named for the now Russian district of Tyumen Oblast in Western Siberia.
(7563) 1988 BC, provisional designation 1988 BC, is a background asteroid from the central region of the asteroid belt, approximately 16 kilometers in diameter. It was discovered on 16 January 1988, by Japanese amateur astronomer Takuo Kojima at the YGCO Chiyoda Station in the Kantō region of Japan. The asteroid has a rotation period of 6.5 hours.