Asteroids with Satellites Database--Johnston's Archive
(80806)
2000 CM105
compiled by Wm. Robert Johnston
last updated
26 July 2026
--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:
TNO, Cubewano cold
orbital data, primary (osculating elements)
[JPL]
: |
semimajor axis a: |
42.1419 AU
| |
orbital period P: |
273.577 yr
(= 99924 d)
| |
eccentricity e: |
0.0693419
| |
perihelion distance q: |
39.2197 AU
| |
aphelion distance Q: |
45.0641 AU
| |
inclination i: |
3.761219°
| |
argument of perihelion ω: |
5.676°
| |
ascending node Ω: |
45.5209°
| |
mean anomaly M: |
108.235°
| |
perihelion passage TP: |
1942 Jul 17.5
| |
Epoch: |
2024 Oct 17
| |
data arc: |
2000-2023
(125 obs.)
| |
Earth MOID: |
38.2303 AU
| |
Jupiter Tisserand invariant TJ: |
5.789
|
| Neptune Tisserand invariant TN: | 3.070 [*D] |
orbital data, secondary:
|
semimajor axis as: |
4303
km
[E20a]
| |
separation/primary radius as/rp: | 36 [*E] | |
separation/Hill radius as/rH: | 0.0062 [*E] | |
orbital period Ps: |
25.04
d [E20a]
| |
eccentricity es: |
0.284
[E20a]
| |
inclination is: | 122.8 ° [E20a] | |
normalized ang. mom. αL: |
?
|
|
other data, system (combined):
|
absolute mag. H: |
6.69
[MPC]
6.16 [JPL]
| |
slope parameter G: |
(0.15) [*A]
| |
effective diameter dE: |
298
km [*E]
| |
geometric albedo: |
0.068
[*E]
| |
color index U-B: |
?
| |
color index B-V: |
1.14
[T02a]
| |
color index V-R: | 0.74 [T02a] | |
color index B-R: | 1.98 ± 0.23 [T02a] | |
taxonomic type: |
?
| |
mass m: |
1.01x1019
kg [E20a]
| |
density ρ: |
(1.0
g/cm3) [*A]
| |
Hill radius rH: |
700000 km [*E]
|
other data, primary:
|
diameter dp: |
237
km [*E]
| |
axial ratios a/b, b/c: | 1.1, ? [*E] | |
rotation period RPp: |
?
| |
amplitude in mag., rotational ΔM: |
<0.14
[L06a]
| |
pole direction Β, λ: |
?
,
?
|
other data, secondary:
|
diameter ds: |
180
km [*E]
| |
diameter ratio ds/dp: |
0.759
± 0.035
[N08c]
| |
component mag. difference ΔM: |
1.2
[S06c]
| |
rotation period RPs: |
?
| |
|
|
--
(80806) 2000 CM105
--discovery and notes:
Primary discovered
2000 Feb 06
from
Kitt Peak Observatory, Arizona, USA
by
M. W. Buie.
Permanent number assigned 2004 May 04.
Companion discovered
2002 Oct 05
by D. C. Stephens, K. S. Noll, et al.
using
Hubble Space Telescope
observations from Hubble Space Telescope.
Announced
2005 Oct 06 [S06c].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Millis, R. L., Buie, M. W., Wagner, R. M., Elliot, J. L., Harmer, D., Willmarth, D. W., Smith, P., Saha, A., Kern, S. D., Wasserman, L. H., & Marsden, B. G. 2000, Minor Planet Electronic Circulars NINE TNOs
©
2005-2014, 2025
by Wm. Robert Johnston.
Last modified
26 July 2026.
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