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Asteroids with Satellites Database--Johnston's Archive
(13123) Tyson
compiled by Wm. Robert Johnston
last updated9 October 2021--Orbital and physical data--
(Seethis page for definitions of quantities; source codes in brackets, seethis link for full references; *A, *D, and *E indicate assumed, derived, and estimated values, respectively.)
dynamical type, primary:main belt asteroid
orbital data, primary (osculating elements)[JPL]: | semimajor axisa: | 2.3596776562 AU | | orbital periodP: | 3.624826487 yr
(= 1323.9678743 d) | | eccentricitye: | 0.271268829 | | perihelion distanceq: | 1.719570661 AU | | aphelion distanceQ: | 2.9997846518 AU | | inclinationi: | 23.28485684° | | argument of perihelionω: | 251.9304156° | | ascending nodeΩ: | 68.7982681° | | mean anomalyM: | 98.3846709° | | perihelion passageTP: | 2020 Jul 04.171823 | | Epoch: | 2021 Jul 01 | | data arc: | 1953-2021(2553 obs.) | | Earth MOID: | 0.833952 AU | | Jupiter Tisserand invariantTJ: | 3.396 |
orbital data, secondary: | semimajor axisas: | ? | | orbital periodPs: | ? | | eccentricityes: | ? | | normalized ang. mom.αL: | ? |
| other data, system (combined):| absolute mag.H: | 12.5[MPC] | | slope parameterG: | (0.15) [*A] | | effective diameterdE: | 10.87± 2.26 km [M11b] | | geometric albedo: | 0.197± 0.083[M11b] | | color indexU-B: | ? | | color indexB-V: | ? | | taxonomic type: | ? | | massm: | ? | | densityρ: | (1.6 g/cm3) [*A] | | Hill radiusrH: | 1500 km [*E] |
other data, primary: | diameterdp: | 10.87± 2.26 km [M11b] | | rotation periodRPp: | 3.3303± 0.0002h [O15*] | | amplitude in mag., rotationalΔM: | 0.2 [O15*] | | pole directionΒ, λ: | ?,? |
other data, secondary: | diameterds: | ? | | diameter ratiods/dp: | ? | | component mag. differenceΔM: | ? | | rotation periodRPs: | 3.862± 0.002h [O15*] | |
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--(13123) Tyson --discovery and notes:
Primary discovered1994 May 16from Palomar Observatory, California, USAby C. S. Shoemaker and D. H. Levy.Alternate designation(s):1994 KA, 1995 YO2.Linked to prediscovery observations from 1953 Feb 14.Permanent number assigned 2000 Jan 24.
Named 2000 Nov 11 for Neil deGrasse Tyson (1958-) [MPC041572].
Companion discovered2015 Febusinglightcurve observations.Announced2015 Feb.
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--Links to ADS abstracts:
©2015, 2021by Wm. Robert Johnston.
Last modified9 October 2021.Return toHome. Return toAstronomy and Space. Return toAsteroids with Satellites.
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