Arrokoth

2014 MU69TNO> Cold C.Binary

event on 2018-08-04

9.5

Radius (km)

—

Geometric albedo

Positive chords

Sweden

Observed from

Size — to scalevs Pluto

ARROKOTH · R 9.5 KMPLUTO · R 1188 KM

Arrokoth — this objectPluto — comparison

Physical properties

Radius eq. (km)9.5

Equivalent radius (km)—

Oblateness0

Axis ratios (b/a · c/a)—

Density (g/cm³)—

ShapeBinary

Albedo (V)—

Orbit — top viewheliocentric

44.624

a (AU)

0.044

2.45

i (deg)

Occultation record

Event date2018-08-04

Observed fromSweden

Positive chords2

KindDouble

Delta (au)42.34

Star G mag.13.38

Object G mag.27.525

Astrometryfeeds NIMA ephemeris

Position Date (JD)2458334.55659720

RA position19 04 22.80

Error RA·cos(δ) (mas)—

DEC position−20 35 33.9

Error DEC (mas)—

Atmosphere

Pressure (nbar)—

Atm. gas—

Reference & provenance

Lucky Star projectNo

Referenceprelim.

DOI—

Linkhttp://pluto.jhuapl.edu/News-Center/News-Article.php?page=20190222

Comment—