466 Tisiphone

Tisiphone (minor planet designation: 466 Tisiphone) is an asteroid which orbits among the Cybele family of asteroids.[5]

Tisiphone
Discovery[1]
Discovered byMax Wolf
Luigi Carnera
Discovery siteHeidelberg Observatory
Discovery date17 January 1901
Designations
(466) Tisiphone
Pronunciation/tɪˈsɪfəniː/[2]
Named after
Tisiphone
1901 FX
Cybele
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc114.91 yr (41971 d)
Aphelion3.664121719 AU (548.1448071 Gm)
Perihelion3.04594364 AU (455.666683 Gm)
3.355032678 AU (501.9057448 Gm)
Eccentricity0.092126984
6.15 yr (2244.6 d)
199.011026°
0° 9m 37.38s / day
Inclination19.1085004°
290.871348°
249.614694°
Physical characteristics
Dimensions121 km[3]
115.53±2.2 km[1]
8.824 ± 0.009 h[4]
8.834 h (0.3681 d)[1]
0.056[3]
0.0634±0.002[1]
C[3]
8.5

    Discovery

    It was discovered by Max Wolf and Luigi Carnera on January 17, 1901, and was assigned the provisional designation 1901 FX. It was named after Tisiphone of Greek mythology.

    Physical properties

    A number of positional observations of Tisiphone were carried out in 1907,[6][7] 1913,[8] and 1914.[9]

    In 1992 a simple check of 466 Tisiphone's position was made by the Association of Lunar and Planetary Observers (ALPO). The asteroid was found to be in the expected position to within observational errors.[10] Further checks were carried out in 1996,[11] and 2006[12] with the asteroid in its expected position both times.

    In 1997 Tisiphone was studied by Worman and Christianson at the Feder Observatory located near Minnesota State University, Moorhead, with the goal of determining its rotational period. A period of 8.824 ± 0.009 was arrived at, with the lightcurve data showing two distinct maxima and minima in its rotation.[4]

    In 2001 Lagerkvist et al. published their results on a study of the Cybele asteroid family, which includes 466 Tisiphone. Relative photometric observations of Tisiphone were carried out in 1998 and 1999 using the 1.2 m telescope at the Calar Alto Observatory located at the Max-Planck-Institut für Astronomie in Heidelberg, Germany. They were able to confirm the 8.8 hour rotation period obtained by Worman and Christianson.[3]

    In 2006 Fornasier et al. published polarimetric data for a number of asteroids, including 466 Tisiphone.[13]

    Further reading
    • Barucci, M.A.; et al. (November 1987). "Classification of asteroids using G-mode analysis". Icarus. 72 (2): 304–324. Bibcode:1987Icar...72..304B. doi:10.1016/0019-1035(87)90177-1.

    References
    1. "466 Tisiphone". JPL Small-Body Database. Jet Propulsion Laboratory. SPK-ID: 466. Retrieved 10 May 2016.
    2. Noah Webster (1884) A Practical Dictionary of the English Language
    3. Lagerkvist, C.I.; et al. (January 2001). "A Study of Cybele Asteroids I. Spin Properties of Ten Asteroids". Icarus. 149 (1): 190–197. Bibcode:2001Icar..149..190L. doi:10.1006/icar.2000.6507.
    4. Worman, W.E.; Christianson, K. (January–March 1999). "CCD Photometry of 466 Tisiphone". The Minor Planet Bulletin. 26 (2): 9–10. Bibcode:1999MPBu...26....9W.
    5. Lagerkvist, Claes-Ingvar; et al. (January 2001), "A Study of Cybele Asteroids. I. Spin Properties of Ten Asteroids", Icarus, 149 (1): 190–197, Bibcode:2001Icar..149..190L, doi:10.1006/icar.2000.6507.
    6. (in German) Bauschinger, J.; Berberich, A.; Neugebauer, P. V. (1906). "Genäherte Oppositions-Ephemeriden von 38 kleinen Planeten für 1907 Januar bis 1907 August". Veröffentlichungen des Königlichen Astronomischen Rechen-Instituts zu Berlin. 31: 1–14. Bibcode:1906VeKAB..31....1B.
    7. (in German) Millosevich, Elia (December 1907). "Osservazioni di pianetini e comete". Astronomische Nachrichten. 176 (22): 349–360. Bibcode:1907AN....176..349M. doi:10.1002/asna.19071762202.
    8. (in German) "Mitteilungen über kleine Planeten". Astronomische Nachrichten. 193 (17): 315–316. 1912. doi:10.1002/asna.19121931706. Archived from the original on 5 January 2013.
    9. (in German) Cohn, Fritz (December 1914). "Genäherte Beobachtungen Kleiner Planeten". Astronomische Nachrichten. 199 (26): 381–388. Bibcode:1914AN....199..381C. doi:10.1002/asna.19141992603.
    10. Pilcher, F. (September 1993). "General Report of Position Observations by the ALPO Minor Planets Section for the Year 1992". The Minor Planet Bulletin. 20: 23–28. Bibcode:1993MPBu...20...23P.
    11. Pilcher, F. (September 1997). "General Report of Position Observations by the ALPO Minor Planets Section for the Year 1996". The Minor Planet Bulletin. 24: 18–30. Bibcode:1997MPBu...24...18P.
    12. Pilcher, F. (September 2007). "General Report of Position Observations by the ALPO Minor Planets Section for the Year 2006". The Minor Planet Bulletin. 34 (3): 85–91. Bibcode:2007MPBu...34...85P. (pdf)
    13. Fornasier, S.; et al. (August 2006). "Polarimetric survey of asteroids with the Asiago telescope". Astronomy and Astrophysics. 455 (1): 371–377. arXiv:astro-ph/0604614. Bibcode:2006A&A...455..371F. doi:10.1051/0004-6361:20064836.

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