Discovery [1] | |
---|---|
Discovered by | E. Bowell |
Discovery site | Anderson Mesa Stn. |
Discovery date | 24 January 1982 |
Designations | |
(2905) Plaskett | |
Named after | John Stanley Plaskett Harry Hemley Plaskett (Canadian astronomers) [2] [3] |
1982 BZ2 ·1973 FJ2 1973 FP ·1978 GV3 | |
main-belt ·(middle) Gefion [4] | |
Orbital characteristics [1] | |
Epoch 4 September 2017 (JD 2458000.5) | |
Uncertainty parameter 0 | |
Observation arc | 44.60 yr (16,289 days) |
Aphelion | 3.0704 AU |
Perihelion | 2.5395 AU |
2.8049 AU | |
Eccentricity | 0.0946 |
4.70 yr (1,716 days) | |
122.54° | |
0° 12m 35.28s / day | |
Inclination | 8.9005° |
9.8462° | |
220.04° | |
Physical characteristics | |
Dimensions | 10.224±0.145 km [5] |
0.273±0.010 [5] | |
SMASS = S [1] | |
12.0 [1] | |
2905 Plaskett, provisional designation 1982 BZ2, is a stony Gefionian asteroid from the central regions of the asteroid belt, approximately 10 kilometers in diameter. It was discovered on 24 January 1982, by American astronomer Edward Bowell at the Anderson Mesa Station near Flagstaff, Arizona. [6] The asteroid was named after Canadian astronomers John Stanley Plaskett and Harry Hemley Plaskett. [2] [3]
Plaskett is a member of the Gefion family ( 516 ), [4] a large intermediate belt family, named after 1272 Gefion. [7] : 23 It orbits the Sun in the central main-belt at a distance of 2.5–3.1 AU once every 4 years and 8 months (1,716 days; semi-major axis of 2.80 AU). Its orbit has an eccentricity of 0.09 and an inclination of 9° with respect to the ecliptic. [1]
The body's observation arc begins with its first observation as 1973 FP at the Crimean Astrophysical Observatory in March 1973, almost 9 years prior to its official discovery observation at Anderson Mesa. [6]
In the SMASS classification, Plaskett is a stony S-type asteroid, [1] which corresponds to the overall spectral type of Gefionian asteroids. [7] : 23
According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Plaskett measures 10.224 kilometers in diameter and its surface has an albedo of 0.273. [5]
As of 2017, no rotational lightcurve of Plaskett has been obtained from photometric observations. The body's rotation period, shape and poles remain unknown. [8]
This minor planet was named in memory of Canadian astronomer John Stanley Plaskett (1865–1941) and his son Harry Hemley Plaskett (1893–1980). [2] [3] The official naming citation was published by the Minor Planet Center on 10 September 1984 ( M.P.C. 9081). [9]
3325 TARDIS is a dark Alauda asteroid from the outer region of the asteroid belt, approximately 29 kilometers in diameter. It was discovered on 3 May 1984, by American astronomer Brian Skiff at Lowell's Anderson Mesa Station, Arizona, in the United States. The asteroid was named TARDIS, after the fictional time machine and spacecraft from the science fiction television series Doctor Who.
1751 Herget, provisional designation 1955 OC, is a stony Gefionian asteroid from the central region of the asteroid belt, approximately 11 kilometers in diameter.
1047 Geisha, provisional designation 1924 TE, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 11 kilometers in diameter. It was discovered on 17 November 1924, by German astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in southwest Germany. The asteroid was named after the British musical The Geisha.
51828 Ilanramon, provisional designation 2001 OU39, is a Gefionian asteroid from the central regions of the asteroid belt, approximately 5.5 kilometers in diameter. It was discovered on 20 July 2001, by astronomers of the Near-Earth Asteroid Tracking program at Palomar Observatory in California, United States. The asteroid was named in memory of Israeli astronaut Ilan Ramon, who died in the Space Shuttle Columbia disaster.
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1581 Abanderada, provisional designation 1950 LA1, is a dark Themistian asteroid from the outer regions of the asteroid belt, approximately 35 kilometers in diameter. It was discovered on 15 June 1950, by Argentine astronomer Miguel Itzigsohn at the La Plata Astronomical Observatory in La Plata, Argentina. The asteroid was named after Eva Perón.
3724 Annenskij, provisional designation 1979 YN8, is a stony Gefionian asteroid from the central regions of the asteroid belt, approximately 14 kilometers (9 miles) in diameter. It was discovered on 23 December 1979, by Soviet astronomer Lyudmila Zhuravleva at the Crimean Astrophysical Observatory in Nauchnij, on the Crimean peninsula. The S-type asteroid has a rotation period of 3.97 hours. It was named for Russian poet Innokenty Annensky.
2873 Binzel, provisional designation 1982 FR, is a stony Florian asteroid and binary system from the inner regions of the asteroid belt, approximately 6.5 kilometers in diameter. It was discovered on 28 March 1982, by American astronomer Edward Bowell at the Anderson Mesa Station in Flagstaff, Arizona. The asteroid was named after astronomer Richard Binzel. Its 1.6-kilometer minor-planet moon was discovered in 2019.
1532 Inari, provisional designation 1938 SM, is a stony Eoan asteroid from the outer regions of the asteroid belt, approximately 28 kilometers in diameter. Discovered by Yrjö Väisälä at Turku Observatory in 1938, it was later named for Lake Inari in northern Finland.
10245 Inselsberg, provisional designation 6071 P-L, is a Gefion asteroid from the central regions of the asteroid belt, approximately 7 kilometers in diameter. It was discovered on 24 September 1960, by Ingrid and Cornelis van Houten at Leiden, and Tom Gehrels at Palomar Observatory in California, United States. The likely S-type asteroid was named for the German mountain Großer Inselsberg.
1287 Lorcia, provisional designation 1933 QL, is an Eoan asteroid from the outer regions of the asteroid belt, approximately 22 kilometers in diameter. It was discovered by Belgian astronomer Sylvain Arend at the Royal Observatory of Belgium in Uccle on 25 August 1933. The asteroid was named for Laura de Sołohub Dikyj, wife of Polish astronomer Tadeusz Banachiewicz.
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3669 Vertinskij, provisional designation 1982 UO7, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 6.5 kilometers (4 miles) in diameter. It was discovered on 21 October 1982, by Soviet astronomer Lyudmila Karachkina at the Crimean Astrophysical Observatory in Nauchnij, on the Crimean peninsula. The S-type asteroid was named for Russian artist Alexander Vertinsky.
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