Quaoar

2002 LM60TNO> Hot C.Ring

event on 2022-08-09

579.5

Radius (km)

0.124

Geometric albedo

Positive chords

United States of America

Observed from

Size — to scalevs Pluto

QUAOAR · R 579.5 KMPLUTO · R 1188 KM

Quaoar — this objectPluto — comparison

Physical properties

Radius eq. (km)579.5 ± 2

Equivalent radius (km)543 ± 2

Oblateness0.12 ± 0.01

Axis ratios (b/a · c/a)—

Density (g/cm³)—

ShapeTri-axial

Albedo (V)0.124 ± 0.006

Orbit — top viewheliocentric

43.5

a (AU)

0.041

i (deg)

Occultation record

Event date2022-08-09

Observed fromUnited States of America

Positive chords9

KindMain

Delta (au)41.9805

Star G mag.15.3

Object G mag.18.8

Astrometryfeeds NIMA ephemeris

Position Date (JD)2459800.7736523

RA position18 21 42.8677703

Error RA·cos(δ) (mas)0.249

DEC position-15 12 45.829691

Error DEC (mas)230

Atmosphere

Pressure (nbar)—

Atm. gas—

Reference & provenance

Lucky Star projectYes

ReferenceC. L. Pereira et al, A&A, 673, L4, 2023

Comment—