Discovery [1] | |
---|---|
Discovered by | L. Kohoutek |
Discovery site | Hamburg Observatory |
Discovery date | 14 January 1972 |
Designations | |
(1842) Hynek | |
Named after | Hynek Kohoutek (father of discoverer) [2] |
1972 AA ·1928 DE 1929 SO ·1952 DN2 1953 UV ·1962 EA 1963 SS ·1964 YF 1966 HE ·1969 EG1 2004 TE363 | |
main-belt · Flora [3] | |
Orbital characteristics [1] | |
Epoch 4 September 2017 (JD 2458000.5) | |
Uncertainty parameter 0 | |
Observation arc | 87.59 yr (31,992 days) |
Aphelion | 2.6758 AU |
Perihelion | 1.8568 AU |
2.2663 AU | |
Eccentricity | 0.1807 |
3.41 yr (1,246 days) | |
339.54° | |
0° 17m 20.04s / day | |
Inclination | 5.3539° |
153.45° | |
125.55° | |
Physical characteristics | |
Dimensions | 7.996±0.073 [4] 8.171±0.027 km [5] 9.31±1.70 km [6] 9.80 km (calculated) [3] |
3.94±0.02 h [7] 3.9410±0.0007 h [7] | |
0.20 (assumed) [3] 0.28±0.14 [6] 0.2899±0.0415 [5] 0.300±0.073 [4] | |
Tholen = S [1] · S [3] [8] B–V = 0.871 [1] U–B = 0.522 [1] | |
12.41 [1] [3] [5] [6] ·12.89±0.41 [8] | |
1842 Hynek, provisional designation 1972 AA, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 8 kilometers in diameter.
The asteroid was discovered on 14 January 1972 by Czech astronomer Luboš Kohoutek at Hamburg Observatory, who named it after his father, Hynek Kohoutek. [9]
Hynek is member of the Flora family. It orbits the Sun in the inner main-belt at a distance of 1.9–2.7 AU once every 3 years and 5 months (1,246 days). Its orbit has an eccentricity of 0.18 and an inclination of 5° with respect to the ecliptic. [1]
First identified as 1928 DE at Heidelberg, the asteroid's observation arc begins with its first used observation taken at Lowell Observatory in 1929, when it was identified as 1929 SO, nearly 43 years prior to its official discovery observation at Hamburg. [9]
In the Tholen classification, Hynek is characterized as a common S-type asteroid. [1]
In July 2007, the so-far best rated rotational lightcurve of Hynek was obtained from photometric observations by French amateur astronomer Pierre Antonini. Lightcurve analysis gave a well-defined rotation period of 3.9410 hours with a brightness variation of 0.17 magnitude ( U=3 ). [7]
According to the surveys carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Hynek measures between 7.996 and 9.31 kilometers in diameter, and its surface has an albedo between 0.28 of 0.300. [4] [5] [6]
The Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a diameter of 9.80 kilometers with an absolute magnitude of 12.41. [3]
This minor planet was named after Hynek Kohoutek, the father of the discoverer, celebrating his 70th birthday. [2] The official naming citation was published by the Minor Planet Center on 20 December 1974 ( M.P.C. 3757). [10]
Athalia, provisional designation 1903 ME, is a carbonaceous Themistian asteroid from the outer regions of the asteroid belt, approximately 40 kilometers in diameter. It was discovered on 20 September 1903, by German astronomer Max Wolf at the Heidelberg Observatory in southwest Germany. The asteroid was named after the ancient Judahite queen Athaliah.
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.
La Paz, provisional designation 1923 PD, is a carbonaceous asteroid from the outer region of the asteroid belt, approximately 40 kilometers in diameter. It was discovered on 31 October 1923, by German astronomer Max Wolf at the Heidelberg-Königstuhl State Observatory and named after the city La Paz in Bolivia.
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.
1031 Arctica, provisional designation 1924 RR, is a dark asteroid from the outer region of the asteroid belt, approximately 75 kilometers in diameter. It was discovered on 6 June 1924, by Soviet−Russian astronomer Sergey Belyavsky at Simeiz Observatory on the Crimean peninsula. It was named for the Arctic Sea.
1049 Gotho, provisional designation 1925 RB, is a carbonaceous asteroid from the outer region of the asteroid belt, approximately 53 kilometers in diameter. It was discovered on 14 September 1925, by German astronomer Karl Reinmuth at Heidelberg Observatory in southwest Germany. Although the name of the asteroid is a masculine German name, it is not known to refer to a particular individual.
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.
11277 Ballard, provisional designation 1988 TW2, is a Phocaea asteroid from the inner regions of the asteroid belt, approximately 6.3 kilometers (3.9 miles) in diameter. It was discovered on 8 October 1988, by American astronomer couple Carolyn and Eugene Shoemaker at the Palomar Observatory in California. The assumed S-type asteroid has a rotation period of at least 10 hours. It was named for American marine scientist Robert Ballard.
1651 Behrens, provisional designation 1936 HD, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 10 kilometers in diameter. Discovered by Marguerite Laugier in 1936, it was named after Johann Behrens.
2038 Bistro, provisional designation 1973 WF, is a stony asteroid from the inner regions of the asteroid belt, approximately 12 kilometers in diameter. The asteroid was discovered on 24 November 1973, by Swiss astronomer Paul Wild at the Zimmerwald Observatory near Bern, Switzerland. It was named for the Bistro restaurant.
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.
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.
1383 Limburgia, provisional designation 1934 RV, is a carbonaceous asteroid from the outer region of the asteroid belt, approximately 23 kilometers in diameter. It was discovered on 9 September 1934, by Dutch astronomer Hendrik van Gent at the Leiden Southern Station, annex to the Johannesburg Observatory in South Africa. It is named for the Dutch province Limburg.
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.
1258 Sicilia, provisional designation 1932 PG, is a dark background asteroid from the outer regions of the asteroid belt, approximately 44 kilometers in diameter. It was discovered on 8 August 1932, by astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in southwest Germany. The asteroid was named after the Italian island of Sicily.
2391 Tomita, provisional designation 1957 AA, is a Nysian asteroid from the inner regions of the asteroid belt, approximately 15 kilometers in diameter. The asteroid was discovered on 9 January 1957, by German astronomer Karl Reinmuth at Heidelberg Observatory in southern Germany. It was named after Japanese astronomer Kōichirō Tomita.
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.