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Charon (moon)

Charon (/ˈkɛərɒn, -ən/ KAIR-on, -⁠ən or /ˈʃærən/ SHARR-ən), formal designation (134340) Pluto I, is the largest of the five known natural satellites of the dwarf planet Pluto. It has a mean radius of 606 km (377 mi). Charon is a planetary-mass moon and the sixth-largest known trans-Neptunian object after Pluto, Eris, Haumea, Makemake, and Gonggong. It…

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Absolute magnitude (H)
1
Adjectives
Charonian[note 2] Charontian, -ean[note 3] Charonean[note 4]
Albedo
~0.38 (locally 0.20–0.73) 0.25 ± 0.03 Bond
Alternative names
S/1978 P 1
Angular diameter
55 milli-arcsec
Apoapsis
19 598.92 km

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Charon (moon)

Nodes98
Edges97
Triples31
Avg. degree1.98
Density0.020408
Components1

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Charon (moon)

Top relations

Absolute magnitude (H) · 1
Charon (moon) → 1
Adjectives · 1
Charon (moon) → Charonian[note 2] Charontian, -ean[note 3] Charonean[note 4]
Albedo · 1
Charon (moon) → ~0.38 (locally 0.20–0.73) 0.25 ± 0.03 Bond
Alternative names · 1
Charon (moon) → S/1978 P 1
Angular diameter · 1
Charon (moon) → 55 milli-arcsec
Apoapsis · 1
Charon (moon) → 19 598.92 km
Apparent magnitude · 1
Charon (moon) → 16.8
Average orbital speed · 1
Charon (moon) → 0.21 km/s[note 5]
Designation · 1
Charon (moon) → Pluto I
Discovered by · 1
Charon (moon) → James W. Christy

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Important terminology

charon pluto charon's moon system surface pluto's atmosphere new horizons two mass planet may mi km solar christy dwarf formation

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Charon (moon)Absolute magnitude (H)11.00infobox
Charon (moon)AdjectivesCharonian[note 2] Charontian, -ean[note 3] Charonean[note 4]1.00infobox
Charon (moon)Albedo~0.38 (locally 0.20–0.73) 0.25 ± 0.03 Bond1.00infobox
Charon (moon)Alternative namesS/1978 P 11.00infobox
Charon (moon)Angular diameter55 milli-arcsec1.00infobox
Charon (moon)Apoapsis19 598.92 km1.00infobox
Charon (moon)Apparent magnitude16.81.00infobox
Charon (moon)Average orbital speed0.21 km/s[note 5]1.00infobox
Charon (moon)DesignationPluto I1.00infobox
Charon (moon)Discovered byJames W. Christy1.00infobox
Charon (moon)Discovery dateJune 22, 19781.00infobox
Charon (moon)Eccentricity0.0001611.00infobox
Charon (moon)Escape velocity0.59 km/s 0.37 mi/s1.00infobox
Charon (moon)Flattening<0.5%1.00infobox
Charon (moon)Inclination0.080° (to Pluto's equator) 119.591°±0.014° (to Pluto's orbit) 112.783°±0.014° (to the ecliptic)1.00infobox
Charon (moon)Longitude of ascending node223.046°±0.014° (to vernal equinox)1.00infobox
Charon (moon)Mass(1.5897±0.0045)×1021 kg (2.66×10−4 Earths) (12.2% of Pluto)1.00infobox
Charon (moon)Mean density1.705±0.006 g/cm31.00infobox
Charon (moon)Mean radius606.0±0.5 km (0.095 Earths, 0.51 Plutos)1.00infobox
Charon (moon)Named afterDiscoverer's wife, Charlene, and Χάρων Kharōn1.00infobox
Charon (moon)Orbital period (sidereal)6.387221+0.000005 −0.000003 d (6 d, 9 h, 17 m, 35.89 ± 0.35 s)1.00infobox
Charon (moon)Periapsis19 592.61 km1.00infobox
Charon (moon)Pronunciation/ˈkɛərɒn, -ən/ KAIR-on, -⁠ən or /ˈʃærən/ SHARR-ən[note 1]1.00infobox
Charon (moon)Satellite ofPluto1.00infobox
Charon (moon)Semi-major axis19595.764+0.007 −0.008 km (planetocentric) 17181.0 km (barycentric)1.00infobox
Charon (moon)Surface area4.6×106 km2 (0.0090 Earths)1.00infobox
Charon (moon)Surface gravity0.288 m/s21.00infobox
Charon (moon)Synodic rotation periodsynchronous1.00infobox
Charon (moon)Temperature−220 °C (53 K)1.00infobox
Charon (moon)Volume(9.32±0.14)×108 km3 (0.00086 Earths)1.00infobox

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