Occultation event
Chariklo
event on 2017-08-24
143.8
Radius (km)
—
Geometric albedo
1
Positive chords
Brazil
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
Oblateness0.598 ± 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 date2017-08-24
Observed fromBrazil
Positive chords1 // radius lower limit
KindMain
Delta (au)15.055
Star G mag.17.5
Object G mag.18.718
Astrometryfeeds NIMA ephemeris
Position Date (JD)2457989.6243056
RA position18 42 35.2371826
Error RA·cos(δ) (mas)0.426
DEC position−31 09 50.561462
Error DEC (mas)0.432
Atmosphere
Pressure (nbar)—
Atm. gas—
Reference & provenance
Lucky Star projectYes
ReferenceB. E. Morgado et al, A&A, 652, A141, 2021
Link—
Comment—