Chariklo

1997 CU26CentaurRing

event on 2014-04-29

157

Radius (km)

0.042

Geometric albedo

Positive chords

South Africa

Observed from

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)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 date2014-04-29

Observed fromSouth Africa

Positive chords3

KindOther

Delta (au)14.1

Star G mag.—

Object G mag.—

Astrometryfeeds NIMA ephemeris

Position Date (JD)2456777.468194440

RA position17 39 01.7943

Error RA·cos(δ) (mas)—

DEC position-38 52 48.858

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

CommentDouble star detected. See also 10.3847/1538-3881/aa830d (https://iopscience.iop.org/article/10.3847/1538-3881/aa830d/meta)