Occultation event
Leucus
event on 2018-11-18
31.9
Radius (km)
0.037
Geometric albedo
9
Positive chords
United States of America
Observed from
Size — to scalevs Pluto
LEUCUS · R 31.9 KMPLUTO · R 1188 KM
Leucus — this objectPluto — comparison
Physical properties
Radius eq. (km)31.9
Equivalent radius (km)20.5
Oblateness0.4263
Axis ratios (b/a · c/a)0.574 · 464
Density (g/cm³)—
ShapeTri-axial
Albedo (V)0.037 ± 0.001
Orbit — top viewheliocentric
5.29
a (AU)
0.0638
e
11.55
i (deg)
Occultation record
Event date2018-11-18
Observed fromUnited States of America
Positive chords9
KindMain
Delta (au)5.415
Star G mag.13.961
Object G mag.18.851
Astrometryfeeds NIMA ephemeris
Position Date (JD)2458440.6126690
RA position20 42 49.06726
Error RA·cos(δ) (mas)—
DEC position−07 11 42.4799
Error DEC (mas)—
Atmosphere
Pressure (nbar)—
Atm. gas—
Reference & provenance
Lucky Star projectNo
ReferenceMarc W. Buie et al, Planet.Sci.J, 2, 202, 2021
Comment—