Alcathous

1979 WMTrojan

event on 2024-06-12

—

Radius (km)

—

Geometric albedo

Positive chords

Australia

Observed from

Size — to scalevs Pluto

ALCATHOUS · R — KMPLUTO · R 1188 KM

Alcathous — this objectPluto — comparison

Physical properties

Radius eq. (km)—

Equivalent radius (km)—

Oblateness—

Axis ratios (b/a · c/a)—

Density (g/cm³)—

ShapeUndetermined

Albedo (V)—

Orbit — top viewheliocentric

5.2

a (AU)

0.066

16.6

i (deg)

Occultation record

Event date2024-06-12

Observed fromAustralia

Positive chords2

KindMain

Delta (au)5.4845

Star G mag.11.7

Object G mag.16.7

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 projectYes

ReferencePreliminary

DOI—

Linkhttps://lesia.obspm.fr/lucky-star/occ.php?p=129039

CommentDave Gault and Bill Hanna