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Occultation event

Eris

2003 UB313TNO> Scattered D.O.

event on 2010-11-06

1163

Radius (km)

0.96

Geometric albedo

2

Positive chords

Chile

Observed from

Size — to scalevs Pluto

ERIS · R 1163 KMPLUTO · R 1188 KM

Eris — this objectPluto — comparison

Physical properties

Radius eq. (km)1163 ± 6

Equivalent radius (km)1163 ± 6

Oblateness—

Axis ratios (b/a · c/a)—

Density (g/cm³)2.52 ± 0.05

ShapeSpherical

Albedo (V)0.96 ± 0.09/-0.04

Orbit — top viewheliocentric

67.867

a (AU)

0.436

e

44.04

i (deg)

Occultation record

Event date2010-11-06

Observed fromChile

Positive chords2

KindMain

Delta (au)95.74

Star G mag.—

Object G mag.—

Astrometryfeeds NIMA ephemeris

Position Date (JD)2455506.59722220

RA position01 39 09.92735

Error RA·cos(δ) (mas)1

DEC position-04 21 12.04118

Error DEC (mas)0.74

Atmosphere

Pressure (nbar)<1

Atm. gasN2, CH4, Ar

Reference & provenance

Lucky Star projectYes

ReferenceRommel et al, A&A, 644, A40, 2020

DOI10.1051/0004-6361/202039054

Linkhttps://www.nature.com/articles/nature10550

CommentMember of Haumea's family

Eris occultation — 2010-11-06 · SOSB / Lucky Star