Asteroids with Satellites Database--Johnston's Archive
(809)
Lundia
compiled by Wm. Robert Johnston
last updated
21 September 2014
--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: |
2.282385746 AU
| |
orbital period P: |
3.448194636 yr
(= 1259.4530910 d)
| |
eccentricity e: |
0.193127550
| |
perihelion distance q: |
1.84159418 AU
| |
aphelion distance Q: |
2.723177314 AU
| |
inclination i: |
7.1490892°
| |
argument of perihelion ω: |
196.278428°
| |
ascending node Ω: |
154.584982°
| |
mean anomaly M: |
208.041873°
| |
perihelion passage TP: |
2015 Nov 05.62259
| |
Epoch: |
2014 May 23
| |
data arc: |
1915-2014
(1643 obs.)
| |
Earth MOID: |
0.835186 AU
| |
Jupiter Tisserand invariant TJ: |
3.569
|
orbital data, secondary:
|
binary dynamical type: | B [P07f] | |
semimajor axis as: |
15.8
km
[K09a]
| |
separation/primary radius as/rp: | 4.6 [*D] | |
separation/Hill radius as/rH: | 0.013 [*D] | |
orbital period Ps: |
0.6424
± 0.00004
d [K09a]
| |
eccentricity es: |
?
| |
normalized ang. mom. αL: |
1.26
[P07f]
|
|
other data, system (combined):
|
absolute mag. H: |
12.1
[MPC]
| |
slope parameter G: |
(0.15) [*A]
| |
effective diameter dE: |
9.1
± 3.1
km [K09a]
| |
geometric albedo: |
0.4
[K09a]
| |
color index U-B: |
?
| |
color index B-V: |
?
| |
taxonomic type: |
?
| |
mass m: |
4.86x1014
kg [*D]
| |
density ρ: |
1.67
± 0.04
g/cm3[K09a]
| |
Hill radius rH: |
1200 km [*D]
|
other data, primary:
|
diameter dp: |
6.9
± 2.4
km [K09a]
| |
rotation period RPp: |
15.418
± 0.001
h [K09a]
| |
amplitude in mag., rotational ΔM: |
0.35
[K05a]
| |
amplitude in mag., mutual events ΔM: | 0.75 [K05a] | |
pole direction Β, λ: |
?
,
?
|
other data, secondary:
|
diameter ds: |
6.1
± 2.1
km [K09a]
| |
diameter ratio ds/dp: |
0.89
± 0.05
[K09a]
| |
component mag. difference ΔM: |
0.3
[* D]
| |
rotation period RPs: |
15.418
± 0.001
h [K09a]
| |
|
|
--
(809) Lundia
--discovery and notes:
Primary discovered
1915 Aug 11
from
Heidelberg, Germany
by
M. F. Wolf.
Alternate designation(s):
1915 XP,
1936 VC.
Permanent number assigned -.
Named - for Lund Observatory, Sweden.
Companion discovered
2005 Sep 18
by A. Kryszczynska, T. Kwiatkowski, R. Hirsch, M. Polinska, K. Kaminski and A. Marciniak
using
lightcurve
observations from Poznan Astronomical Observatory.
Announced
2005 Oct 01 [K05a].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Birlan, M., Nedelcu, D. A., Popescu, M., Vernazza, P., Colas, F., & Kryszczyńska, A. 2014, Monthly Notices of the Royal Astronomical Society Spectroscopy and surface properties of (809) Lundia
- Birlan, M. & Popescu, M. 2011, EPSC-DPS Joint Meeting 2011 Modelling asteroid spectra: few examples
- Kryszczyńska, A., Colas, F., Descamps, P., Bartczak, P., Polińska, M., Kwiatkowski, T., Lecacheux, J., Hirsch, R., Fagas, M., Kamiński, K., Michałowski, T., & Marciniak, A. 2009, Astronomy and Astrophysics New binary asteroid 809 Lundia. I. Photometry and modelling
- Nesvorný, David, Roig, Fernando, Gladman, Brett, Lazzaro, Daniela, Carruba, Valerio, & Mothé-Diniz, Thais 2008, Icarus Fugitives from the Vesta family
- Birlan, Mirel, Colas, F., Nedelcu, A., Vernazza, P., & Kryszczynska, A. 2006, Bulletin of the American Astronomical Society Spectroscopy of Binary Asteroid 809 Lundia
- Kryszczynska, A. 2005, International Astronomical Union Circular (809) Lundia
- Kryszczynska, A., Kwiatkowski, T., Hirsch, R., Polinska, M., Kaminski, K., & Marciniak, A. 2005, Central Bureau Electronic Telegrams (809) Lundia
- Carruba, V., Michtchenko, T. A., Roig, F., Ferraz-Mello, S., & Nesvorný, D. 2005, Astronomy and Astrophysics On the V-type asteroids outside the Vesta family. I. Interplay of nonlinear secular resonances and the Yarkovsky effect: the cases of 956 Elisa and 809 Lundia
- Carruba, V., Michtchenko, T., Roig, F., Ferraz-Mello, S., & Nesvorny', D. 2005, Bulletin of the American Astronomical Society On the V-type asteroids outside the Vesta family
- Florczak, Marcos, Lazzaro, Daniela, & Duffard, René 2002, Icarus Discovering New V-Type Asteroids in the Vicinity of 4 Vesta
- Debehogne, H., Protić-Benišek, V., & Olević, D. 1993, Bulletin Astronomique de Belgrade 183 photographic positions of nine minor planets obtained at ESO-La Silla in February 1986.
©
2005-2009, 2014
by Wm. Robert Johnston.
Last modified
21 September 2014.
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