1994 Shane
| Discovery[1] | |
|---|---|
| Discovered by | Indiana University (Indiana Asteroid Program) |
| Discovery site | Goethe Link Obs. |
| Discovery date | 4 October 1961 |
| Designations | |
| (1994) Shane | |
Named after | C. Donald Shane[2] (American astronomer) |
| 1961 TE · 1939 RN | |
| main-belt · (middle) [3] Adeona[4] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 77.64 yr (28,358 days) |
| Aphelion | 3.2332 AU |
| Perihelion | 2.1282 AU |
| 2.6807 AU | |
| Eccentricity | 0.2061 |
| 4.39 yr (1,603 days) | |
| 298.87° | |
| 0° 13m 28.56s / day | |
| Inclination | 10.217° |
| 244.73° | |
| 89.669° | |
| Physical characteristics | |
| Dimensions | 17.91±0.93 km[5] 25.00 km (derived)[3] 25.15±0.6 km (IRAS:19)[6] |
| 8 h[7] 8.220±0.001 h[8] | |
| 0.0340 (derived)[3] 0.0640±0.003 (IRAS:19)[6] 0.129±0.014[5] | |
| S[3] | |
| 11.6[5][6] · 11.81±0.86[9] · 12.3[1][3] | |
1994 Shane, provisional designation 1961 TE, is a dark Adeonian asteroid from the central region of the asteroid belt, approximately 25 kilometers in diameter.
It was discovered on 4 October 1961, by astronomers of the Indiana Asteroid Program conducted at the Goethe Link Observatory near Brooklyn, Indiana, United States.[10] It was later named after American astronomer C. Donald Shane.[2]
Orbit and classification[edit]
Shane is a member of the Adeona family (505), a large family of carbonaceous asteroids.[4]
The asteroid orbits the Sun in the intermediate main belt at a distance of 2.1–3.2 AU once every 4 years and 5 months (1,603 days). Its orbit has an eccentricity of 0.21 and an inclination of 10° with respect to the ecliptic.[1] It was first identified as 1939 RN at Simeiz Observatory in 1939, extending Shane's observation arc by 22 years prior to its official discovery observation at Goethe.[10]
Lightcurve[edit]
In October 2009, a rotational lightcurve of Shane was obtained from photometric observations at the Via Capote Observatory (G69) in California. It gave a well-defined rotation period of 8.22 hours with a brightness variation of 0.26 magnitude (U=3),[8] superseding a previously obtained period of 8 hours from 1996 (U=n.a.).[7]
Diameter and albedo[edit]
According to observations made by the Infrared Astronomical Satellite IRAS, Shane has an albedo of 0.06,[6] while the survey carried out by the Japanese Akari satellite rendered a higher albedo of 0.13 with a corresponding diameter of 18 kilometers.[5] The Collaborative Asteroid Lightcurve Link derives an even lower albedo of 0.04, yet does not classify it as a carbonaceous but rather as a S-type asteroid, which typically have much higher albedos due to their stony surface composition.[3]
Naming[edit]
This minor planet was named after American astronomer Charles Donald Shane (1895–1983), director of Lick Observatory, second president of AURA, and instrumental for the establishment of the Cerro Tololo Inter-American Observatory in Chile.
Shane played a major role in the planning and construction of the first telescopes and buildings on Kitt Peak National Observatory as well.[2] The 3-meter C. Donald Shane telescope, located at Lick Observatory, was also named after him. The approved naming citation was published by the Minor Planet Center on 1 March 1981 (M.P.C. 5848).[11]
References[edit]
- ^ a b c d "JPL Small-Body Database Browser: 1994 Shane (1961 TE)" (2017-05-05 last obs.). Jet Propulsion Laboratory. Retrieved 1 July 2017.
- ^ a b c Schmadel, Lutz D. (2007). "(1994) Shane". Dictionary of Minor Planet Names – (1994) Shane. Springer Berlin Heidelberg. p. 161. doi:10.1007/978-3-540-29925-7_1995. ISBN 978-3-540-00238-3.
- ^ a b c d e f "LCDB Data for (1994) Shane". Asteroid Lightcurve Database (LCDB). Retrieved 8 December 2016.
- ^ a b "Asteroid 1994 Shane – Nesvorny HCM Asteroid Families V3.0". Small Bodies Data Ferret. Retrieved 26 October 2019.
- ^ a b c d Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; Ootsubo, Takafumi; et al. (October 2011). "Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey". Publications of the Astronomical Society of Japan. 63 (5): 1117–1138. Bibcode:2011PASJ...63.1117U. doi:10.1093/pasj/63.5.1117. (online, AcuA catalog p. 153)
- ^ a b c d Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (October 2004). "IRAS Minor Planet Survey V6.0". NASA Planetary Data System. 12: IRAS-A-FPA-3-RDR-IMPS-V6.0. Bibcode:2004PDSS...12.....T. Retrieved 22 October 2019.
- ^ a b Florczak, M.; Dotto, E.; Barucci, M. A.; Birlan, M.; Erikson, A.; Fulchignoni, M.; et al. (November 1997). "Rotational properties of main belt asteroids: photoelectric and CCD observations of 15 objects". Planetary and Space Science. 45 (11): 1423–1435. Bibcode:1997P&SS...45.1423F. doi:10.1016/S0032-0633(97)00121-9. Retrieved 8 December 2016.
- ^ a b Brinsfield, James W. (April 2010). "Asteroid Lightcurve Analysis at Via Capote Observatory: 4th Quarter 2009". The Minor Planet Bulletin. 37 (2): 50–53. Bibcode:2010MPBu...37...50B. ISSN 1052-8091. Retrieved 8 December 2016.
- ^ Veres, Peter; Jedicke, Robert; Fitzsimmons, Alan; Denneau, Larry; Granvik, Mikael; Bolin, Bryce; et al. (November 2015). "Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results". Icarus. 261: 34–47. arXiv:1506.00762. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. Retrieved 8 December 2016.
- ^ a b "1994 Shane (1961 TE)". Minor Planet Center. Retrieved 8 December 2016.
- ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 8 December 2016.
External links[edit]
- Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- 1994 Shane at AstDyS-2, Asteroids—Dynamic Site
- 1994 Shane at the JPL Small-Body Database
