Asteroids with Satellites Database--Johnston's Archive
(379)
Huenna
and S/2003 (379) 1
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: |
3.136858904 AU
| |
orbital period P: |
5.555852139 yr
(= 2029.2749940 d)
| |
eccentricity e: |
0.186373517
| |
perihelion distance q: |
2.55223148 AU
| |
aphelion distance Q: |
3.721486330 AU
| |
inclination i: |
1.6695070°
| |
argument of perihelion ω: |
179.92933°
| |
ascending node Ω: |
172.04045°
| |
mean anomaly M: |
344.118659°
| |
perihelion passage TP: |
2014 Aug 20.52113
| |
Epoch: |
2014 May 23
| |
data arc: |
1894-2013
(1739 obs.)
| |
Earth MOID: |
1.54539 AU
| |
Jupiter Tisserand invariant TJ: |
3.184
|
orbital data, secondary:
|
binary dynamical type: | L [P07f] | |
semimajor axis as: |
3336
± 54.9 km
[M08c]
| |
separation/primary radius as/rp: | 76 [*D] | |
separation/Hill radius as/rH: | 0.218 [*D] | |
orbital period Ps: |
87.6
± 0.026
d [M08c]
| |
eccentricity es: |
0.222
± 0.006
[M08c]
| |
normalized ang. mom. αL: |
0.49
[P07f]
|
|
other data, system (combined):
|
absolute mag. H: |
8.87
[MPC]
| |
slope parameter G: |
(0.15) [*A]
| |
effective diameter dE: |
87.47
± 2.36
km [M11b]
| |
geometric albedo: |
0.065
± 0.008
[M11b]
| |
color index U-B: |
0.287
[T95a]
| |
color index B-V: |
0.672
[T95a]
| |
taxonomic type: |
C (SMASSII) [JPL]
B (Tholen) [JPL]
| |
mass m: |
3.83x1017
± 1.9x1016
kg [M08c]
| |
density ρ: |
0.85
± 0.15
g/cm3[M08c]
| |
Hill radius rH: |
15000 km [*D]
|
other data, primary:
|
diameter dp: |
87.47
± 2.36
km [M11b]
| |
rotation period RPp: |
7.022
± 0.001
h [H92a]
| |
amplitude in mag., rotational ΔM: |
0.09
[H03a]
| |
pole direction Β, λ: |
?
,
?
|
other data, secondary:
|
diameter ds: |
5.8
± 1.2
km [M08c]
| |
diameter ratio ds/dp: |
0.066
± 0.014
[*D]
| |
component mag. difference ΔM: |
5.9
[* D]
| |
rotation period RPs: |
?
| |
|
|
--
(379) Huenna and S/2003 (379) 1
--discovery and notes:
Primary discovered
1894 Jan 08
from
Nice, France
by
A. Charlois.
Alternate designation(s):
1894 AQ,
1948 XM, A895 DB, A911 BA.
Permanent number assigned 1895.
Named - for the island of Hven, Sweden.
Companion discovered
2003 Aug 14
by J. L. Margot
using
adaptive optics telescope
observations from W. M. Keck II Telescope, Mauna Kea, Hawaii, USA.
Announced
2003 Aug 15 [M03g].
Provisional designation S/2003 (379) 1.
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Marchis, F., Ruffio, J., Vachier, F., & Berthier, J. 2013, AGU Fall Meeting Abstracts Component-resolved near-infrared spectra of multiple asteroid systems
- Licandro, J., Campins, H., Tozzi, G. P., de León, J., Pinilla-Alonso, N., Boehnhardt, H., & Hainaut, O. R. 2011, Astronomy and Astrophysics Testing the comet nature of main belt comets. The spectra of 133P/Elst-Pizarro and 176P/LINEAR
- DeMeo, Francesca E., Carry, Benoît, Marchis, Franck, Birlan, Mirel, Binzel, Richard P., Bus, Schelte J., Descamps, Pascal, Nedelcu, Alin, Busch, Michael, & Bouy, Hervé 2011, Icarus A spectral comparison of (379) Huenna and its satellite
- DeMeo, Francesca E., Carry, B., Marchis, F., Birlan, M., Binzel, R. P., Bus, S. J., Descamps, P., Nedelcu, A., & Bouy, H. 2010, Bulletin of the American Astronomical Society (379) Huenna's Satellite: A Chip Off The Block
- Marchis, F., Descamps, P., Berthier, J., Hestroffer, D., Vachier, F., Baek, M., Harris, A. W., & Nesvorný, D. 2008, Icarus Main belt binary asteroidal systems with eccentric mutual orbits
- Hestroffer, Daniel, Tanga, P., Cellino, A., Kaasalainen, M., Torppa, J., Marchis, F., Richardson, D. C., Elankumaran, P., Berthier, J., Colas, F., & Lounis, S. 2006, Bulletin of the American Astronomical Society HST/FGS High Angular Resolution Observations of Binary Asteroids
- Marchis, Franck, Berthier, Jerome, Descamps, Pascal, & Hestroffer, Daniel 2006, NOAO Proposal Refining the Orbits of Known Main-Belt Binary Asteroids
- Bus, S. & Binzel, R. P. 2004, NASA Planetary Data System 379 Huenna Average CCD Spectrum
- Margot, J. L. 2003, International Astronomical Union Circular S/2003 (379) 1
- Margot, J. L. & Keck, W. M., II 2003, Central Bureau Electronic Telegrams S/2003 (379) 1
- Charlois, A. 1895, Bulletin Astronomique, Serie I Mémoires et observations. Observations des nouvelles planètes 1893 AP, 1894 AQ, AR, AS, AT, AU, BA, BB, découvertes à l'observatoire de Nice
- 1894, Astronomische Nachrichten Entdeckung von drei nenen Planeten 1894 AQ, AR AS
- Coniel, J. 1894, Bulletin Astronomique, Serie I Mémoires et observations. Éléments provisoires des planètes 1893 AN et 1894 AQ
©
2003-2008, 2014
by Wm. Robert Johnston.
Last modified
21 September 2014.
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