Occultation event
2002 WC19
event on 2018-12-30
99
Radius (km)
—
Geometric albedo
1
Positive chords
Australia
Observed from
Size — to scalevs Pluto
2002 WC19 · R 99 KMPLUTO · R 1188 KM
2002 WC19 — this objectPluto — comparison
Physical properties
Radius eq. (km)> 99
Equivalent radius (km)—
Oblateness0
Axis ratios (b/a · c/a)—
Density (g/cm³)—
ShapeUndetermined
Albedo (V)—
Orbit — top viewheliocentric
47.532
a (AU)
0.258
e
9.2
i (deg)
Occultation record
Event date2018-12-30
Observed fromAustralia
Positive chords1 // radius lower limit
KindMain
Delta (au)39.8
Star G mag.16.4798
Object G mag.—
Astrometryfeeds NIMA ephemeris
Position Date (JD)2458482.99861110
RA position05 50 53.889168
Error RA·cos(δ) (mas)0.41
DEC position19 55 52.6368
Error DEC (mas)1.1
Where on the skyThe published position of this event, against the constellations.
Chart data: d3-celestial (BSD-3-Clause), from Hipparcos / Yale BSC and the IAU figures. Position J2000.
Atmosphere
Pressure (nbar)—
Atm. gas—
Reference & provenance
Lucky Star projectYes
ReferenceRommel et al, A&A, 644, A40, 2020
Link—
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.