Varuna

2000 WR106TNO> Hot C.

event on 2010-02-19

502

Radius (km)

0.04

Geometric albedo

Positive chords

Brazil

Observed from

Size — to scalevs Pluto

VARUNA · R 502 KMPLUTO · R 1188 KM

Varuna — this objectPluto — comparison

Physical properties

Radius eq. (km)> 502

Equivalent radius (km)568

Oblateness0.56 ± <

Axis ratios (b/a · c/a)—

Density (g/cm³)—

ShapeJacobi

Albedo (V)0.04

Orbit — top viewheliocentric

42.78

a (AU)

0.054

17.22

i (deg)

Occultation record

Event date2010-02-19

Observed fromBrazil

Positive chords1 // radius lower limit

KindMain

Delta (au)42.75

Star G mag.—

Object G mag.—

Astrometryfeeds NIMA ephemeris

Position Date (JD)—

RA position—

Error RA·cos(δ) (mas)—

DEC position—

Error DEC (mas)—

Atmosphere

Pressure (nbar)no

Atm. gas—

Reference & provenance

Lucky Star projectYes

ReferenceSicardy et al, DPS, 2010

DOI—

Linkhttp://adsabs.harvard.edu/abs/2010DPS....42.2311S

CommentA close negative chord allowed shape constraint.