Neoptolemus

1975 WM1Trojan

event on 2022-11-21

Radius (km)

—

Geometric albedo

Positive chords

Czechia

Observed from

Size — to scalevs Pluto

NEOPTOLEMUS · R 86 KMPLUTO · R 1188 KM

Neoptolemus — this objectPluto — comparison

Physical properties

Radius eq. (km)> 86

Equivalent radius (km)—

Oblateness—

Axis ratios (b/a · c/a)—

Density (g/cm³)—

Shape—

Albedo (V)—

Orbit — top viewheliocentric

5.2

a (AU)

0.045

17.77

i (deg)

Occultation record

Event date2022-11-21

Observed fromCzechia

Positive chords1 // radius lower limit

Kind—

Delta (au)4.044

Star G mag.15.232

Object G mag.16.289

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 projectNo

ReferencePreliminary

DOI—

Comment—