Occultation event
Chariklo
event on 2019-09-04
143.8
Radius (km)
—
Geometric albedo
1
Positive chords
United States of America
Observed from
Size — to scalevs Pluto
CHARIKLO · R 143.8 KMPLUTO · R 1188 KM
Chariklo — this objectPluto — comparison
Physical properties
Radius eq. (km)> 143.8 ± 1.5
Equivalent radius (km)124.8 ± 3.0
Oblateness0.0598 ± 0.0305
Axis ratios (b/a · c/a)0.94 · 0.689
Density (g/cm³)1.55 ± 0.08
ShapeTri-axial
Albedo (V)—
Orbit — top viewheliocentric
15.84
a (AU)
0.17
e
23.36
i (deg)
Occultation record
Event date2019-09-04
Observed fromUnited States of America
Positive chords1 // radius lower limit
KindRing
Delta (au)15.593
Star G mag.13.1
Object G mag.18.86
Astrometryfeeds NIMA ephemeris
Position Date (JD)—
RA position—
Error RA·cos(δ) (mas)—
DEC position—
Error DEC (mas)—
Atmosphere
Pressure (nbar)—
Atm. gas—
Reference & provenance
Lucky Star projectYes
ReferenceB. E. Morgado et al, A&A, 652, A141, 2021
CommentAlso observed by MIT group.