Chariklo

1997 CU26CentaurRing

event on 2016-10-01

157

Radius (km)

0.042

Geometric albedo

Positive chords

Australia

Observed from

3D modelChariklo · interactive

Downloads 1.2 MB

Model of the occulting body, not a product of this event — a reconstruction, not a direct measurement. The values below are what this occultation measured.

Size — to scalevs Pluto

CHARIKLO · R 157 KMPLUTO · R 1188 KM

Chariklo — this objectPluto — comparison

Physical properties

Radius eq. (km)157 ± 4

Equivalent radius (km)123 ± -3

Oblateness0.452 ± 0.007

Axis ratios (b/a · c/a)—

Density (g/cm³)0.796 ± 0.002/-0.004

ShapeJacobi

Albedo (V)0.042 ± 1

Orbit — top viewheliocentric

15.84

a (AU)

0.17

23.36

i (deg)

Occultation record

Event date2016-10-01

Observed fromAustralia

Positive chords2

KindMain

Delta (au)15.49

Star G mag.—

Object G mag.—

Astrometryfeeds NIMA ephemeris

Position Date (JD)2457662.923611110

RA position18 16 20.0324

Error RA·cos(δ) (mas)—

DEC position-33 01 10.841

Error DEC (mas)—

Atmosphere

Pressure (nbar)no

Atm. gas—

Reference & provenance

Lucky Star projectYes

ReferenceLeiva et al., AJ, 2017 and Bérard et al., AJ, 2017

DOI10.3847/1538-3881/aa8956

Linkhttp://iopscience.iop.org/article/10.3847/1538-3881/aa8956/meta

CommentSee also 10.3847/1538-3881/aa830d