Occultation event
Pluto
event on 2011-06-04
1189
Radius (km)
0.57
Geometric albedo
4
Positive chords
Brazil, Switzerland
Observed from
Size — to scalevs Charon
PLUTO · R 1189 KMCHARON · R 606 KM
Pluto — this objectCharon — comparison
Physical properties
Radius eq. (km)1189 ± 1.6
Equivalent radius (km)1189.1 ± 2.3
Oblateness4 ± <
Axis ratios (b/a · c/a)—
Density (g/cm³)1.854 ± 0.011
ShapeSpherical
Albedo (V)0.57 ± 0.09
Orbit — top viewheliocentric
39.846
a (AU)
0.2537
e
17.103
i (deg)
Occultation record
Event date2011-06-04
Observed fromBrazil, Switzerland
Positive chords4
KindDouble
Delta (au)31.11
Star G mag.16.4
Object G mag.—
Astrometryfeeds NIMA ephemeris
Position Date (JD)2455716.737499990
RA position18 27 53.81859
Error RA·cos(δ) (mas)0.3
DEC position-18 45 30.8046
Error DEC (mas)0.3
Atmosphere
Pressure (nbar)9390
Atm. gasN2
Reference & provenance
Lucky Star projectYes
ReferenceMeza et al. & Desmars et al., A&A, 2019
Commentposition from Desmars et al. A&A, 2019 (https://doi.org/10.1051/0004-6361/201834958)