Discovery | |
---|---|
Discovered by | C. H. F. Peters |
Discovery date | 31 October 1886 |
Designations | |
(261) Prymno | |
Pronunciation | /ˈprɪmnoʊ/ |
Named after | Prymno |
A886 UA | |
Main belt | |
Adjectives | Prymnoian /prɪmˈnoʊ.iən/ |
Orbital characteristics [1] | |
Epoch 31 July 2016 (JD 2457600.5) | |
Uncertainty parameter 0 | |
Observation arc | 98.79 yr (36082 d) |
Aphelion | 2.54054 AU (380.059 Gm) |
Perihelion | 2.12336 AU (317.650 Gm) |
2.33195 AU (348.855 Gm) | |
Eccentricity | 0.089449 |
3.56 yr (1300.7 d) | |
Average orbital speed | 19.51 km/s |
35.7611° | |
0° 16m 36.386s / day | |
Inclination | 3.63567° |
96.6415° | |
65.9065° | |
Physical characteristics | |
Dimensions | 50.93±1.3 km |
8.002 h (0.3334 d) | |
0.1141±0.006 | |
B | |
9.44 | |
261 Prymno is a somewhat large Main belt asteroid. It is classified as a B-type asteroid and probably has a primitive composition not unlike common C-type carbonaceous asteroids.
It was discovered by C. H. F. Peters on October 31, 1886, in Clinton, New York and was named after the Greek Oceanid Prymno.
205 Martha is a large main belt asteroid. It is a dark, primitive carbonaceous C-type asteroid. This object was discovered by Johann Palisa on 13 October 1879, in Pola and was named after Martha, a woman in the New Testament.
222 Lucia is a large Themistian asteroid. It was discovered by Johann Palisa on 9 February 1882 in Vienna and named after Lucia, daughter of Austro-Hungarian explorer Graf Wilczek.
235 Carolina is a sizeable Main belt asteroid. It was discovered by Austrian astronomer Johann Palisa on 28 November 1883 in Vienna, and was named after Caroline Island, now part of Kiribati in the Pacific Ocean. This asteroid is orbiting the Sun at a distance of 2.88 AU with a period of 4.89 yr and an eccentricity (ovalness) of 0.06. The orbital plane is tilted at an angle of 9.0° to the plane of the ecliptic.
241 Germania is a very large main-belt asteroid. It is classified as a B-type asteroid and is probably composed of dark, primitive carbonaceous material.
301 Bavaria is a carbonaceous background asteroid from the intermediate asteroid belt, approximately 54 kilometers. It was discovered by Johann Palisa on 16 November 1890 in Vienna.
359 Georgia is a typical Main belt asteroid. It is classified as an X-type asteroid.
380 Fiducia is a dark and large asteroid, approximately 68 kilometers in diameter, located in the central region of the asteroid belt. It was discovered by French astronomer Auguste Charlois at the Nice Observatory on 8 January 1894. The carbonaceous C-type asteroid has a rotation period of 13.7 hours. It was named "Fiducia", the Latin word for confidence.
479 Caprera is a minor planet orbiting the Sun.
506 Marion is a minor planet orbiting the Sun. It was discovered by Raymond Smith Dugan in February 1903, and was later named after a cousin of his. It is designated as a C-type asteroid with a size of approximately 104 kilometres (64.6 mi).
507 Laodica is a minor planet orbiting the Sun.
633 Zelima is a minor planet orbiting the Sun in the asteroid belt with a magnitude of 10.7. The name may have been inspired by the asteroid's provisional designation 1907 ZM.
678 Fredegundis is a minor planet orbiting the Sun. It was discovered 22 January 1909 from Heidelberg by German astronomer K. Wilhelm Lorenz, and was named after the French opera Frédégonde. This object is orbiting at a distance of 2.57 AU with a period of 4.13 years and an eccentricity (ovalness) of 0.22. The orbital plane is inclined at an angle of 6.1° to the plane of the ecliptic
839 Valborg is a mid-sized S-type Eunomian asteroid. Its diameter is about 20 km, its albedo of 0.353 is very high for an asteroid. Its rotation period is 10.366 hours.
863 Benkoela is an A-type asteroid orbiting the Sun that was discovered by German astronomer Max Wolf on 9 February 1917 from Heidelberg.
1038 Tuckia, provisional designation 1924 TK, is rare-type Hilda asteroid from the outermost regions of the asteroid belt, approximately 58 kilometers in diameter. It was discovered on 24 November 1924, by German astronomer by Max Wolf at Heidelberg Observatory in southwest Germany. The asteroid was named after American banker Edward Tuck and his wife.
9344 Klopstock, provisional designation 1991 RB4, is a background asteroid from the inner regions of the asteroid belt. It was discovered on 12 September 1991, by German astronomers Freimut Börngen and Lutz Schmadel at the Karl Schwarzschild Observatory in Tautenburg, Germany. Poor observational data suggests that the asteroid is one of the darkest known objects with a diameter of approximately 17 kilometers (11 miles), while it is also an assumed stony asteroid with a much smaller diameter. It has a rotation period of 5.84 hours and was named after German poet Friedrich Gottlieb Klopstock.
12444 Prothoon is a large Jupiter trojan from the Trojan camp, approximately 64 kilometers in diameter. It was discovered on 15 April 1996, by Belgian astronomer Eric Elst at the La Silla Observatory in northern Chile. The assumed C-type asteroid is one of the 60 largest Jupiter trojans and has a rotation period of 15.82 hours. It was named after Prothoon from Greek mythology.
(11436) 1969 QR is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 3.7 kilometers in diameter. It was discovered on 22 August 1969, by Czech astronomer Luboš Kohoutek at Bergedorf Observatory in Hamburg, Germany.
(11474) 1982 SM2 is a carbonaceous Baptistina asteroid and potentially slow rotator from the inner regions of the asteroid belt, approximately 6 kilometers in diameter. It was discovered on 18 September 1982, by Belgian astronomer Henri Debehogne at ESO' La Silla Observatory in northern Chile.
(39546) 1992 DT5 is a dark Hoffmeister asteroid and exceptionally slow rotator from the central region of the asteroid belt, approximately 5.3 kilometers (3.3 miles) in diameter. The likely elongated C-type asteroid was discovered on 29 February 1992, by the Uppsala–ESO Survey of Asteroids and Comets at ESO's La Silla astronomical observatory site in northern Chile.