Jupiter
Table:
Jupiter

Near-true colour view in 2019[a]

Designations
Pronunciation	/ˈdʒuːpɪtər/ ⓘ[1]
Adjectives	Jovian
Symbol
Orbital characteristics[2]
Epoch J2000
Aphelion	816.62 million km (5.4588 AU)
Perihelion	740.52 million km (4.9501 AU)

Semi-major axis

778.57 million km (5.2044 AU)
Eccentricity	0.0489

Orbital period (sidereal)

11.862 yr

4,332.59 d

10,475.8 Jovian solar days[3]

Orbital period (synodic)

398.88 d

Average orbital speed

13.07 km/s (8.12 mi/s)

Mean anomaly

20.020°[4]
Inclination

1.303° to ecliptic[4]

6.09° to Sun's equator[4]

0.32° to invariable plane[5]

Longitude of ascending node

100.464°

Argument of perihelion

273.867°[4]
Known satellites	79 (as of 2018[update])[6]
Physical characteristics[2][7][8]

Mean radius

69,911 km (43,441 mi)[b]

Equatorial radius

71,492 km (44,423 mi)[b]

11.209 Earths

Polar radius

66,854 km (41,541 mi)[b]

10.517 Earths

Flattening	0.06487

Surface area

6.1419×1010 km2 (2.3714×1010 sq mi)[b][9]

121.9 Earths

Volume

1.4313×1015 km3 (3.434×1014 cu mi)[b]

1,321 Earths

Mass

1.8982×1027 kg (4.1848×1027 lb)

317.8 Earths

1/1047 Sun[10]

Mean density

1,326 kg/m3 (2,235 lb/cu yd)[c]

Surface gravity

24.79 m/s2 (81.3 ft/s2)[b]
2.528 g

Moment of inertia factor

0.2756±0.0006[11]

Escape velocity

59.5 km/s (37.0 mi/s)[b]

Sidereal rotation period

9.925 hours[12] (9 h 55 m 30 s)

Equatorial rotation velocity

12.6 km/s (7.8 mi/s; 45,000 km/h)

Axial tilt

3.13° (to orbit)

North pole right ascension

268.057°; 17h 52m 14s

North pole declination

64.495°
Albedo	0.503 (Bond)[13]
0.538 (geometric)[14]

Surface temp.
min
mean
max

1 bar level

165 K (−108 °C)

0.1 bar

112 K (−161 °C)

Apparent magnitude

−2.94[15] to −1.66[15]

Angular diameter

29.8″ to 50.1″
Atmosphere[2]

Surface pressure

20–200 kPa;[16] 70 kPa[17]

Scale height

27 km (17 mi)
Composition by volume	by volume:

89%±2.0%	hydrogen (H2)
10%±2.0%	helium (He)
0.3%±0.1%	methane (CH4)
0.026%±0.004%	ammonia (NH3)
0.0028%±0.001%	hydrogen deuteride (HD)
0.0006%±0.0002%	ethane (C2H6)
0.0004%±0.0004%	water (H2O)

Ices:

ammonia (NH3)

water (H2O)

ammonium hydrosulfide (NH4SH)

Based on the table, judge whether the statement is entailed, neutral, or refuted according to the table. Give your final answer in JSON format {"answer": "YOUR ANSWER"}.

Hypothesis: Jupiter has more than a dozen known satellites.

answer: entailed