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Occultation event

Mentor

1984 HA1Trojan
event on 2019-03-02
Radius (km)
Geometric albedo
1
Positive chords
Spain
Observed from
Size — to scalevs Pluto
MENTOR · R KMPLUTO · R 1188 KM
Mentor — this objectPluto — comparison
Physical properties
Radius eq. (km)> —
Equivalent radius (km)
Oblateness
Axis ratios (b/a · c/a)
Density (g/cm³)
ShapeUndetermined
Albedo (V)
Orbit — top viewheliocentric
Neptune 30 AU
5.1
a (AU)
0.06
e
24.7
i (deg)
Occultation record
each line — one station saw the star vanish
Event date2019-03-02
Observed fromSpain
Positive chords1 // radius lower limit
KindMain
Delta (au)4.57
Star G mag.
Object G mag.
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
Link
CommentRamón Marzoa report.
Mentor occultation — 2019-03-02 · SOSB / Lucky Star