1994 Shane

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1994 Shane
Discovery [1]
Discovered by Indiana University
(Indiana Asteroid Program)
Discovery site Goethe Link Obs.
Discovery date4 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.

    Contents

    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

    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

    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

    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

    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]

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    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 1994 Shane (1961 TE)" (2017-05-05 last obs.). Jet Propulsion Laboratory . Retrieved 1 July 2017.
    2. 1 2 3 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.
    3. 1 2 3 4 5 6 "LCDB Data for (1994) Shane". Asteroid Lightcurve Database (LCDB). Retrieved 8 December 2016.
    4. 1 2 "Asteroid 1994 Shane – Nesvorny HCM Asteroid Families V3.0". Small Bodies Data Ferret. Retrieved 26 October 2019.
    5. 1 2 3 4 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)
    6. 1 2 3 4 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.
    7. 1 2 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.
    8. 1 2 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.
    9. ↑ 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.
    10. 1 2 "1994 Shane (1961 TE)". Minor Planet Center. Retrieved 8 December 2016.
    11. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 8 December 2016.
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