Quaoar

2002 LM60TNO> Hot C.

event on 2012-10-15

200

Radius (km)

—

Geometric albedo

Positive chords

Switzerland

Observed from

Size — to scalevs Pluto

QUAOAR · R 200 KMPLUTO · R 1188 KM

Quaoar — this objectPluto — comparison

Physical properties

Radius eq. (km)> 200

Equivalent radius (km)—

Oblateness—

Axis ratios (b/a · c/a)—

Density (g/cm³)—

ShapeUndetermined

Albedo (V)—

Orbit — top viewheliocentric

43.5

a (AU)

0.041

i (deg)

Occultation record

Event date2012-10-15

Observed fromSwitzerland

Positive chords1 // radius lower limit

KindMain

Delta (au)43.56

Star G mag.—

Object G mag.20.239

Astrometryfeeds NIMA ephemeris

Position Date (JD)2456215.531250

RA position17 28 10.137009

Error RA·cos(δ) (mas)0.44

DEC position−15 36 23.32076

Error DEC (mas)0.4

Atmosphere

Pressure (nbar)no

Atm. gas—

Reference & provenance

Lucky Star projectYes

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

DOI10.1051/0004-6361/202039054

Linkhttps://doi.org/10.1088/0004-637X/773/1/26

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.