2002 WC19

2002 WC19TNO> Resonant

event on 2018-12-30

Radius (km)

—

Geometric albedo

Positive chords

Australia

Observed from

Size — to scalevs Pluto

2002 WC19 · R 99 KMPLUTO · R 1188 KM

2002 WC19 — this objectPluto — comparison

Physical properties

Radius eq. (km)> 99

Equivalent radius (km)—

Oblateness0

Axis ratios (b/a · c/a)—

Density (g/cm³)—

ShapeUndetermined

Albedo (V)—

Orbit — top viewheliocentric

47.532

a (AU)

0.258

9.2

i (deg)

Occultation record

Event date2018-12-30

Observed fromAustralia

Positive chords1 // radius lower limit

KindMain

Delta (au)39.8

Star G mag.16.4798

Object G mag.—

Astrometryfeeds NIMA ephemeris

Position Date (JD)2458482.99861110

RA position05 50 53.889168

Error RA·cos(δ) (mas)0.41

DEC position19 55 52.6368

Error DEC (mas)1.1

Atmosphere

Pressure (nbar)—

Atm. gas—

Reference & provenance

Lucky Star projectYes

ReferenceRommel et al, A&A, 644, A40, 2020

DOI10.1051/0004-6361/202039054

Link—

CommentThis object has an ambiguous solution where the center of it could be north or south of the observed chord. In this case we assumed the north position.