| Discovery[1] | |
|---|---|
| Discovered by | E. Bowell |
| Discovery site | Anderson Mesa Stn. |
| Discovery date | 13 October 1982 |
| Designations | |
| (2874) Jim Young | |
Named after | James Young (American astronomer)[2] |
| 1982 TH · 1962 WE 1965 SD · 1972 TD2 1972 XF | |
| main-belt · Flora[3] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 62.99 yr (23,007 days) |
| Aphelion | 2.5452AU |
| Perihelion | 1.9444 AU |
| 2.2448 AU | |
| Eccentricity | 0.1338 |
| 3.36yr (1,228 days) | |
| 118.67° | |
| 0° 17m 34.8s / day | |
| Inclination | 4.8911° |
| 79.198° | |
| 322.28° | |
| Physical characteristics | |
| Dimensions | 6.552±0.099[4] 6.999±0.044 km[5] 7.47 km(calculated)[3] 7.70±0.43 km[6] |
| 131.3h[7] | |
| 0.1902±0.0435[5] 0.226±0.042[6] 0.24(assumed)[3] 0.251±0.030[4] | |
| SMASS =S[1] · S[3] | |
| 12.8[1][3][6] · 13.06±0.03[8] · 13.2[5] | |
2874 Jim Young, provisional designation1982 TH, is a stony Florianasteroid andslow rotator from the inner regions of theasteroid belt, approximately 7.5 kilometers in diameter. It was discovered on 13 October 1982, by American astronomerEdward Bowell at Lowell Observatory'sAnderson Mesa Station near Flagstaff, Arizona.[9] The asteroid was named after American astronomerJames Young.[2]
Jim Young is a member of theFlora family, one of the largest groups of stony asteroids in the main-belt. It orbits the Sun in theinner main-belt at a distance of 1.9–2.5 AU once every 3 years and 4 months (1,228 days). Its orbit has aneccentricity of 0.13 and aninclination of 5° with respect to theecliptic.[1] A firstprecovery was taken at thePalomar Observatory in 1954, extending the asteroid'sobservation arc by 28 years prior to its official discovery observation at Anderson Mesa.[9]
In theSMASS classification,Jim Young is characterized as a stonyS-type asteroid.[1]
Jim Young is aslow rotator. These are bodies that take much longer to rotate once around their axis than most other asteroids typically do. In January 2007, a rotationallightcurve was obtained by American astronomerDonald P. Pray at his Carbuncle Hill Observatory (912). It gave a longrotation period of131.3 hours with a brightness variation of approximately 0.75 inmagnitude (U=2).[7]
According to two different data sets from NASA's space-basedWide-field Infrared Survey Explorer with its subsequentNEOWISE mission,Jim Young measures between 6.6 and 7.7 kilometers in diameter and its surface has analbedo between 0.190 and 0.251.[4][5][6] TheCollaborative Asteroid Lightcurve Link assumes an albedo of 0.24 – derived from8 Flora, the family's largest member and namesake – and calculates a diameter of 7.5 kilometers with anabsolute magnitude of 12.8.[3]
Thisminor planet was named for American astronomerJames Young at JPL'sTable Mountain Observatory near Wrightwood, California. At the time of citation, his numerousphotometric observations significantly contributed to the number of then known rotation periods of asteroids.[2] The official naming citation was published by theMinor Planet Center on 10 September 1984 (M.P.C. 9081).[10] Young is also a prolificdiscoverer of minor planets, credited by theMinor Planet Center with the discovery of more than250 numbered bodies.[11]
