Occultation event
Paris
event on 2020-04-06
89.2
Radius (km)
0.045
Geometric albedo
8
Positive chords
Japan
Observed from
3D modelParis · interactive
Downloads 91 KB
Model of the occulting body, not a product of this event — a reconstruction, not a direct measurement. The values below are what this occultation measured.
Size — to scalevs Pluto
PARIS · R 89.2 KMPLUTO · R 1188 KM
Paris — this objectPluto — comparison
Physical properties
Radius eq. (km)89.2
Equivalent radius (km)63.1 ± 3,1
Oblateness—
Axis ratios (b/a · c/a)—
Density (g/cm³)1.38 ± -
ShapeIrregular
Albedo (V)0.045 ± 0,002
Orbit — top viewheliocentric
5.2
a (AU)
0.127
e
27.9
i (deg)
Occultation record
Event date2020-04-06
Observed fromJapan
Positive chords8
KindMain
Delta (au)4.1019
Star G mag.8
Object G mag.15.5
Astrometryfeeds NIMA ephemeris
Position Date (JD)—
RA position15 32 23.6505761
Error RA·cos(δ) (mas)0.799
DEC position15 37 25.410327
Error DEC (mas)0.633
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
ReferenceCatani, L. M., “An Irregular Shape of the Jupiter Trojan (3317) Paris Revealed by Stellar Occultations and Rotational Light Curves”, <i>The Astronomical Journal</i>, vol. 172, no. 2, Art. no. 120, IOP, 2026. doi:10.3847/1538-3881/ae88f3.
CommentDouble star. Five chords on one star and three chords on the seccondary star.x