Discovery [1] | |
---|---|
Discovered by | J. Palisa |
Discovery site | Austrian Naval Obs. |
Discovery date | 8 November 1875 |
Designations | |
(155) Scylla | |
Pronunciation | /ˈsɪlə/ [2] |
Named after | Scylla (Greek mythology) [3] |
A875 VE; 1907 TJ; 1930 UN; 1930 XS; 1934 RU; 1939 TK; 1941 HL; 1950 FL; 1950 FN | |
main-belt [1] [4] ·(middle) background [5] | |
Symbol | |
Orbital characteristics [4] | |
Epoch 23 March 2018 (JD 2458200.5) | |
Uncertainty parameter 0 | |
Observation arc | 142.38 yr (52,004 d) |
Aphelion | 3.5207 AU |
Perihelion | 1.9916 AU |
2.7562 AU | |
Eccentricity | 0.2774 |
4.58 yr (1,671 d) | |
2.9234° | |
0° 12m 55.44s / day | |
Inclination | 11.388° |
40.994° | |
45.838° | |
Physical characteristics | |
Mean diameter | 32.90±12.33 km [6] 39.21±0.97 km [7] 39.605±0.198 km [8] 39.88±3.8 km [9] 41.38±11.37 km [10] 45.482±0.215 km [11] |
7.955±0.005 h [12] 7.958±0.002 h [13] 7.95880±0.00005 h [14] 7.9597±0.0001 h [15] 7.960±0.001 h [16] 8.8±0.6 h [17] | |
0.0237±0.0022 [11] 0.027±0.003 [8] 0.03±0.01 [10] 0.0309±0.007 [9] 0.035±0.002 [7] 0.05±0.03 [6] | |
Tholen = XFC [4] [18] B–V = 0.688 [4] U–B = 0.234 [4] | |
11.23 [6] 11.39 [4] [18] [7] [10] [11] | |
Scylla (minor planet designation: 155 Scylla) is a main belt asteroid. It was discovered by Austrian astronomer Johann Palisa at the Austrian Naval Observatory on 8 November 1875, and named after the monster Scylla in Greek mythology. Two weeks after its discovery this asteroid became lost and was not recovered for 95 years. It was finally found by Paul Wild of Berne, Switzerland with the aid of an ephemeris created in 1970 by Conrad M. Bardwell at Cincinnati Observatory. [19]
Photometric observations of this asteroid during 2008 at the Organ Mesa Observatory in Las Cruces, New Mexico, gave an asymmetrical, bimodal light curve with a period of 7.9597 ± 0.0001 hours and a brightness variation of 0.46 ± 0.03 in magnitude. [15]
2023 Asaph, provisional designation 1952 SA, is a dark asteroid from the outer regions of the asteroid belt, approximately 21 kilometers in diameter. It was discovered on 16 September 1952, by astronomers of the Indiana Asteroid Program at Goethe Link Observatory in Indiana, United States.
1027 Aesculapia, provisional designation A923 YO11, is a Themistian asteroid from the outer region of the asteroid belt, approximately 33 kilometers in diameter.
1554 Yugoslavia, provisional designation 1940 RE, is a stony Eunomian asteroid from the middle region of the asteroid belt, approximately 16 kilometres (9.9 mi) in diameter. It was discovered by Serbian astronomer Milorad Protić at Belgrade Astronomical Observatory, Serbia, on 6 September 1940. It was named for the former country of Yugoslavia.
1110 Jaroslawa is a bright background asteroid and rather slow rotator from the inner regions of the asteroid belt. The stony S-type asteroid has a rotation period of 97.4 hours and measures approximately 13 kilometers in diameter. It was discovered at the Simeiz Observatory on the Crimean peninsula on 10 August 1928, by astronomer Soviet Grigory Neujmin, who named it after his son, Jaroslav Grigorevich Neujmin.
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.
1151 Ithaka, provisional designation 1929 RK, is a carbonaceous asteroid from the inner regions of the asteroid belt, approximately 14 kilometers in diameter. It was discovered by Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in 1929, and later named for the Greek island of Ithaca.
(9928) 1981 WE9, provisional designation 1981 WE9, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 3 kilometers in diameter. It was discovered on 16 November 1981, by astronomers at Perth Observatory in Bickley, Australia.
2839 Annette is a bright Flora asteroid from the inner regions of the asteroid belt. It was discovered on 5 October 1929, by American astronomer Clyde Tombaugh at Lowell Observatory during his search for Pluto. The presumed S-type asteroid has a rotation period of 10.5 hours and measures approximately 5 kilometers in diameter. It was named after the discoverer's daughter.
1271 Isergina, provisional designation 1931 TN, is a carbonaceous background asteroid from the outer regions of the asteroid belt, approximately 45 kilometers in diameter. It was discovered on 10 October 1931, by Soviet astronomer Grigory Neujmin at the Simeiz Observatory on the Crimean peninsula. The asteroid was named after Crimean physician and friend of the discoverer, Pyotr Isergin.
1384 Kniertje, provisional designation 1934 RX, is a dark Adeonian asteroid from the central regions of the asteroid belt, approximately 26 kilometers in diameter. It was discovered on 9 September 1934, by Dutch astronomer Hendrik van Gent at the Union Observatory in Johannesburg, South Africa. The asteroid was named after a character in the Dutch play Op Hoop van Zegen by Herman Heijermans.
1264 Letaba, provisional designation 1933 HG, is a carbonaceous asteroid and possible tumbler from the background population of the outer asteroid belt, approximately 70 kilometers in diameter. It was discovered on 21 April 1933, by South African astronomer Cyril Jackson at the Union Observatory in Johannesburg. The asteroid was named for the Letaba River in eastern South Africa.
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.
1582 Martir, provisional designation 1950 LY, is a carbonaceous background asteroid from the outer regions of the asteroid belt, approximately 37 kilometers in diameter. It was discovered on 15 June 1950, by Argentine astronomer Miguel Itzigsohn at the La Plata Astronomical Observatory in Argentina. The asteroid was named after the First Lady of Argentina, Eva Perón.
1330 Spiridonia, provisional designation 1925 DB, is a dark background asteroid of primitive composition, located in the outer regions of the asteroid belt, approximately 65 kilometers in diameter. It was discovered on 17 February 1925, by Soviet astronomer Vladimir Albitsky at the Simeiz Observatory on the Crimean peninsula. The asteroid was named after the discoverer's brother-in-law, Spiridon Zaslavskij.
1927 Suvanto, provisional designation 1936 FP, is a stony Eunomian asteroid from the central region of the asteroid belt, approximately 12 kilometers in diameter. It was discovered on 18 March 1936, by Finnish astronomer Rafael Suvanto at the Turku Observatory in Southwest Finland. The asteroid was posthumously named in honor of the discoverer.
1266 Tone is a dark background asteroid from the outer regions of the asteroid belt, approximately 80 kilometers in diameter. Discovered by astronomer Okuro Oikawa at the Tokyo Observatory in 1927, it was assigned the provisional designation 1927 BD. The asteroid was later named after the Tone River, one of Japan's largest rivers.
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.
1655 Comas Solà, provisional designation 1929 WG, is a rare-type asteroid from the central region of the asteroid belt, approximately 36 kilometers in diameter. It was discovered on 28 November 1929, by Spanish astronomer of Catalan origin, Josep Comas i Solà at the Fabra Observatory in Barcelona, Spain. It was later named after the discoverer.
1708 Pólit, provisional designation 1929 XA, is a very dark asteroid from the outer region of the asteroid belt, approximately 29 kilometers in diameter. It was discovered on 30 November 1929, by Spanish astronomer of Catalan origin Josep Comas i Solà at the Fabra Observatory in Barcelona, and was later named after Catalan astronomer Isidre Pòlit i Boixareu.
(6382) 1988 EL, is a stony Hungaria asteroid from the inner regions of the asteroid belt, approximately 5 kilometers in diameter. It was discovered on 14 March 1988, by American astronomer Jeffrey Alu at the U.S. Palomar Observatory, California.