Occultation event

Pluto

1930 BMTNO> PlutinoAtmosphere

event on 2013-05-04

1189

Radius (km)

0.57

Geometric albedo

Positive chords

Argentina, Brazil, Chile

Observed from

Size — to scalevs Charon

PLUTO · R 1189 KMCHARON · R 606 KM

Pluto — this objectCharon — comparison

Physical properties

Radius eq. (km)1189 ± 1.6

Equivalent radius (km)1189.1 ± 2.3

Oblateness0.004 ± <

Axis ratios (b/a · c/a)—

Density (g/cm³)1.854 ± 0.011

ShapeSpherical

Albedo (V)0.57 ± 0.09

Orbit — top viewheliocentric

39.846

a (AU)

0.2537

17.103

i (deg)

Occultation record

Event date2013-05-04

Observed fromArgentina, Brazil, Chile

Positive chords8

KindMain

Delta (au)31.68

Star G mag.14.5

Object G mag.—

Astrometryfeeds NIMA ephemeris

Position Date (JD)2456416.848611110

RA position18 47 52.53305

Error RA·cos(δ) (mas)0.1

DEC position-19 41 24.4265

Error DEC (mas)0.1

Atmosphere

Pressure (nbar)12000

Atm. gasN2

Reference & provenance

Lucky Star projectYes

ReferenceDias-Oliveira, ApJ, 2015

DOI10.1088/0004-637X/811/1/53

Linkhttps://doi.org/10.1088/0004-637X/811/1/53

CommentSee also Olkin et al., Icar, 2015 (https://doi.org/10.1016/j.icarus.2014.03.026) and Meza et al. & Desmars et al., A&A, 2019