Occultation event
Bienor
event on 2018-04-02
46.215
Radius (km)
0.08
Geometric albedo
1
Positive chords
Hungary
Observed from
Size — to scalevs Pluto
BIENOR · R 46.215 KMPLUTO · R 1188 KM
Bienor — this objectPluto — comparison
Physical properties
Radius eq. (km)> 46.215
Equivalent radius (km)75 ± 10
Oblateness0
Axis ratios (b/a · c/a)—
Density (g/cm³)—
ShapeTri-axial
Albedo (V)0.08 ± 2
Orbit — top viewheliocentric
16.5
a (AU)
0.201
e
20.7
i (deg)
Occultation record
Event date2018-04-02
Observed fromHungary
Positive chords1 // radius lower limit
KindMain
Delta (au)15.7
Star G mag.14.6587
Object G mag.19.687
Astrometryfeeds NIMA ephemeris
Position Date (JD)2458211.32638890
RA position03 00 51.843141
Error RA·cos(δ) (mas)0.15
DEC position37 21 59.80884
Error DEC (mas)0.56
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)no
Atm. gas—
Reference & provenance
Lucky Star projectYes
ReferenceRommel et al, A&A, 644, A40, 2020
Link—
CommentThis object has an ambiguous solution where the center of it could be north or south of the observed chord. In this case we assumed the north position.