Object profile
Alcathous
8 occultation events
—
Best radius (km)
—
Geometric albedo
8
Events recorded
5.2 AU
Semi-major axis
Size — to scalevs Pluto
ALCATHOUS · R — KMPLUTO · R 1188 KM
Alcathous — this objectPluto — comparison
Best physical propertieslatest event
Radius eq. (km)> —
Equivalent radius (km)—
Oblateness—
Axis ratios (b/a · c/a)—
Density (g/cm³)—
Albedo (V)—
ShapeUndetermined
Where on the skyNo event of this object carries a published position yet.
All occultation events8 recorded — newest first
| Date | Chords | Observed from | Radius eq. (km) | Feature | |
|---|---|---|---|---|---|
| 2025-10-27 | 1 | United States of America | — | — | details → |
| 2025-10-27 | 1 | United States of America | — | — | details → |
| 2025-09-17 | 1 | United States of America | — | — | details → |
| 2024-08-01 | 1 | United States of America | — | — | details → |
| 2024-06-12 | 2 | Australia | — | — | details → |
| 2022-08-11 | 5 | United Kingdom | — | — | details → |
| 2022-07-28 | 1 | Turkey | — | — | details → |
| 2021-04-24 | 1 | France | — | — | details → |
Orbit — top viewheliocentric
5.2
a (AU)
0.066
e
16.6
i (deg)
Class & designation
Number2241
Provisional designation1979 WM
Dynamical classTrojan
Inclination (deg)16.6
Size (km)—
H (Abs. Mag.)—