Asteroids with Satellites Database--Johnston's Archive

(8077) Hoyle

compiled by Wm. Robert Johnston
last updated 16 July 2017

--Orbital and physical data--

(See this page for definitions of quantities; source codes in brackets, see this 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 axis a: 2.629430366 AU
orbital period P: yr
(= 1557.366893 d)
eccentricity e: 0.215427859
perihelion distance q: 2.06297781 AU
aphelion distance Q: 3.195882919 AU
inclination i: 17.2661596°
argument of perihelion ω: 35.063779°
ascending node Ω: 135.76623°
mean anomaly M: 119.9836046°
perihelion passage TP: 2016 Apr 02.948629
Epoch: 2017 Sep 04
data arc: 1954-2017 (1405 obs.)
Earth MOID: 1.09411 AU
Jupiter Tisserand invariant TJ: 3.305


orbital data, secondary:
semimajor axis as: ?
orbital period Ps: ?
eccentricity es: ?
normalized ang. mom. αL: ?

other data, system (combined):
absolute mag. H: 12.9 [MPC]
slope parameter G: (0.15) [*A]
effective diameter dE: km []
geometric albedo: []
color index U-B: ?
color index B-V: ?
taxonomic type: ?
mass m: ?
density ρ: (1.6 g/cm3) [*A]
Hill radius rH: 0 km [*E]

other data, primary:
diameter dp: km []
rotation period RPp: 2.7454 h [JPL]
amplitude in mag., rotational ΔM: ?
pole direction Β, λ: ? , ?


other data, secondary:
diameter ds: ?
diameter ratio ds/dp: ?
component mag. difference ΔM: ?
rotation period RPs: ?

-- (8077) Hoyle --discovery and notes:

Primary discovered 1986 Jan 12 from Anderson Mesa Station, Arizona, USA by E. Bowell. Alternate designation(s): 1986 AW2 . Linked to prediscovery observations from 1954 Sep 08. Permanent number assigned 1997 Dec 14.

Named 2000 Jul 26 for Fred Hoyle (1915-) [MPC41028].

Companion discovered using lightcurve observations. Announced 2016 Jun.

--Links, more technical:

--Links, less technical:

--Links to ADS abstracts:


© 2017 by Wm. Robert Johnston.
Last modified 16 July 2017.
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