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Asteroids with Satellites Database--Johnston's Archive
(5426) Sharp
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, inner
orbital data, primary (osculating elements)[JPL]: | semimajor axisa: | 1.9550247279 AU | | orbital periodP: | 2.733610189 yr
(= 998.4511217 d) | | eccentricitye: | 0.11656562 | | perihelion distanceq: | 1.727136059 AU | | aphelion distanceQ: | 2.1829133971 AU | | inclinationi: | 23.79822738° | | argument of perihelionω: | 67.3917973° | | ascending nodeΩ: | 88.1698003° | | mean anomalyM: | 103.0700876° | | perihelion passageTP: | 2020 Sep 18.137654 | | Epoch: | 2021 Jul 01 | | data arc: | 1985-2021(1958 obs.) | | Earth MOID: | 0.824181 AU | | Jupiter Tisserand invariantTJ: | 3.776 |
orbital data, secondary: | semimajor axisas: | 4.4 km[*E] | | separation/primary radiusas/rp: | 4.5 [*E] | | separation/Hill radiusas/rH: | 0.017 [*E] | | orbital periodPs: | 1.0092± 0.0008d [W15j] | | eccentricityes: | ? | | normalized ang. mom.αL: | ? |
| other data, system (combined):| absolute mag.H: | 14.06[MPC] | | slope parameterG: | (0.15) [*A] | | effective diameterdE: | 2.03± 0.34 km [M11b] | | geometric albedo: | 1[M11b] | | color indexU-B: | ? | | color indexB-V: | ? | | taxonomic type: | ? | | massm: | ? | | densityρ: | (1.6 g/cm3) [*A] | | Hill radiusrH: | 270 km [*E] |
other data, primary: | diameterdp: | 1.97± 0.33 km [*E] | | rotation periodRPp: | 4.5609± 0.0001h [W15j] | | amplitude in mag., rotationalΔM: | 0.18± 0.01 [W15j] | | amplitude in mag., mutual eventsΔM: | 0.08 ±0.01 [W15j] | | pole directionΒ, λ: | ?,? |
other data, secondary: | diameterds: | >0.49km [*E] | | diameter ratiods/dp: | >0.25 [*E] | | component mag. differenceΔM: | <3.01 [*E] | | rotation periodRPs: | 24.22± 0.02h [W15j] | |
|
--(5426) Sharp --discovery and notes:
Primary discovered1985 Feb 16from Palomar Observatory, California, USAby C. S. Shoemaker.Alternate designation(s):1985 DD.Permanent number assigned 1993 Feb 06.
Named 1995 Mar 17 for Robert P. Sharp (1911-2004) [MPC024917].
Companion discovered2014 Dec 29 by B. D. Warner, V. Benishek, and A. Ferrerousinglightcurve observations from Palmer Divide Station, Eaton, Colorado, USA; Belgrade Astronomical Observatory, Belgrade, Serbia; Bigmuskie Observatory, Mombercelli, Astri, Italy.Announced2015 Jun [W15j].
--Links, more technical:
--Links, less technical:
--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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