Occultation event
Pluto
event on 2008-06-22
1189
Radius (km)
0.57
Geometric albedo
5
Positive chords
Australia
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 date2008-06-22
Observed fromAustralia
Positive chords5
KindDouble
Delta (au)32.47
Star G mag.12.4
Object G mag.—
Astrometryfeeds NIMA ephemeris
Position Date (JD)2454640.296851850
RA position17 58 33.02976
Error RA·cos(δ) (mas)0.2
DEC position-17 02 38.5534
Error DEC (mas)0.2
Atmosphere
Pressure (nbar)11110
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)