Occultation event
Pluto
event on 2018-08-15
1189
Radius (km)
0.57
Geometric albedo
30
Positive chords
Brazil, Mexico
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 date2018-08-15
Observed fromBrazil, Mexico
Positive chords30
KindMain
Delta (au)32.767
Star G mag.13
Object G mag.14.6
Astrometryfeeds NIMA ephemeris
Position Date (JD)—
RA position—
Error RA·cos(δ) (mas)—
DEC position—
Error DEC (mas)—
Atmosphere
Pressure (nbar)10550
Atm. gasN2
Reference & provenance
Lucky Star projectNo
ReferenceJ. S. Silva-Cabrera et al, MNRAS, 511, 5550–5559, 2022
CommentCentral flash detected