Polymele

1999 WB2Trojan

event on 2020-09-24

Radius (km)

—

Geometric albedo

Positive chords

Senegal

Observed from

Size — to scalevs Pluto

POLYMELE · R 30 KMPLUTO · R 1188 KM

Polymele — this objectPluto — comparison

Physical properties

Radius eq. (km)> 30

Equivalent radius (km)—

Oblateness—

Axis ratios (b/a · c/a)—

Density (g/cm³)—

ShapeUndetermined

Albedo (V)—

Orbit — top viewheliocentric

5.2

a (AU)

0.094

i (deg)

Occultation record

Event date2020-09-24

Observed fromSenegal

Positive chords1 // radius lower limit

KindMain

Delta (au)3.8259

Star G mag.11.3

Object G mag.18.3

Astrometryfeeds NIMA ephemeris

Position Date (JD)—

RA position—

Error RA·cos(δ) (mas)—

DEC position—

Error DEC (mas)—

Atmosphere

Pressure (nbar)—

Atm. gas—

Reference & provenance

Lucky Star projectNo

Referencepreliminary

DOI—

Comment—