Occultation event
Vanth (Orcus/1)
event on 2017-03-07
443
Radius (km)
0.08
Geometric albedo
2
Positive chords
United States of America
Observed from
Size — to scalevs Pluto
VANTH (ORCUS/1) · R 443 KMPLUTO · R 1188 KM
Vanth (Orcus/1) — this objectPluto — comparison
Physical properties
Radius eq. (km)443 ± 10
Equivalent radius (km)443 ± 10
Oblateness0 ± 0
Axis ratios (b/a · c/a)1 · 1
Density (g/cm³)0.8
ShapeSpherical
Albedo (V)0.08 ± 0.02
Orbit — top viewheliocentric
39.36
a (AU)
0.22
e
20.59
i (deg)
Occultation record
Event date2017-03-07
Observed fromUnited States of America
Positive chords2
KindSatellite
Delta (au)47.14
Star G mag.14.57
Object G mag.19.09
Astrometryfeeds NIMA ephemeris
Position Date (JD)—
RA position—
Error RA·cos(δ) (mas)—
DEC position—
Error DEC (mas)—
Atmosphere
Pressure (nbar)<400
Atm. gas—
Reference & provenance
Lucky Star projectNo
ReferenceSickafoose, et al., Icarus, 2019
CommentSatellite detection only