(809) Lundia

compiled by Wm. Robert Johnston
last updated 6 December 2009

Orbital elements and other data (Assumed or derived values in parenthesis, my estimates in italics and parenthesis. Source identifications in brackets, see this link for sources):

orbital data, primary (osculating elements) [JPL]:
semimajor axis a: 2.2831251 AU
orbital period P: 3.4499 y (=1,260.1 d)
eccentricity e: 0.1926674
perihelion distance q: 1.8432413 AU
aphelion distance Q: 2.72300888 AU
inclination i: 7.14354°
argument of perihelion omega: 196.32103°
ascending node OMEGA: 154.68716°
mean anomaly M: 13.72823°
perihelion passage TP: 2005-06-30.94871
Epoch: 18 AUG 2005
data arc: 1915-2004 (617 obs.)

orbital data, secondary:
semimajor axis a: 15.8 km [K09a]
semimajor axis/primary radius a/Rp: (5)
orbital period P: 15.418 ± 0.001 h [K09a]
eccentricity e: ?

other data, primary:
diameter: (6.4 km) [K09a]
absolute magnitude H: 11.8 [JPL]
rotation period: 15.418 ± 0.001 h [K09a]
amplitude delta M: 0.35 [C239]
color index B-V: ?
color index V-R: ?
color index R-I: ?
slope parameter G: (0.15) [a]
geometric albedo: (0.4) [a] [K09a]
mass: ?
density: 1.64-1.71 g/cm3 [K09a]
type: ?

other data, secondary:
diameter: (6.4 km) [K09a]
diameter ratio Ds/Dp: (1.0) [C239]
component magnitude difference: (0)
rotation period: 15.418 ± 0.001 h [K09a]

--(809) Lundia--discovery and notes:

Primary discovered 11 August 1915 from Heidelberg by M. F. Wolf. Alternate designations 1915 XP, 1936 VC.

Secondary identified by A. Kryszczynska, T. Kwiatkowski, R. Hirsch, M. Polinska, K. Kaminski, and A. Marciniak based on lightcurve observations from 18-26 September 2005 at Borowiec Observatory; reported 1 October 2005.

See more information and links at Asteroid/Comet Connection Catchall Catalog page

--Links, more technical:

--Links, less technical:

--Links to ADS abstracts:

© 2005-2007, 2009 by Wm. Robert Johnston.
Last modified 6 December 2009.
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