Occultation event
2002 MS4
event on 2019-07-26
257
Radius (km)
—
Geometric albedo
3
Positive chords
Brazil, Switzerland
Observed from
Size — to scalevs Pluto
2002 MS4 · R 257 KMPLUTO · R 1188 KM
2002 MS4 — this objectPluto — comparison
Physical properties
Radius eq. (km)257
Equivalent radius (km)—
Oblateness—
Axis ratios (b/a · c/a)—
Density (g/cm³)—
ShapeUndetermined
Albedo (V)—
Orbit — top viewheliocentric
41.9
a (AU)
0.144
e
17.7
i (deg)
Occultation record
Event date2019-07-26
Observed fromBrazil, Switzerland
Positive chords3
KindMain
Delta (au)45.67
Star G mag.17.8
Object G mag.20.5
Astrometryfeeds NIMA ephemeris
Position Date (JD)—
RA position—
Error RA·cos(δ) (mas)—
DEC position—
Error DEC (mas)—
Atmosphere
Pressure (nbar)—
Atm. gas—
Reference & provenance
Lucky Star projectYes
Referencepreliminary
DOI—
Comment—

