	Mercure
	Vénus
	Terre
	Mars
	Ceres *
	Jupiter
	Saturne
	Uranus
	Neptune
	Pluto *
	Haumea *
	Makemake *
	Eris *
	Sedna *
	* = Planète naine

Mars

Caractéristiques orbitales

Périhélie: 206,669,000 km, 1.381497 AE
Aphélie: 249,209,300 km, 1.665861 AE
Demi-grand axe: 227,939,100 km, 1.523679 AE
Excentricité: 0.093315
Période de révolution: 686.971 jours, 1.8808 jours, 668.5991 sols
Période synodique: 779.96 jours, 2.135 années
Vitesse orbitale moyenne: 24.077 km/s
Anomalie moyenne:
Inclinaison: 1.850°
Longitude du nœud ascendant: 49.562°
Argument du périhélie: 286.537°

Satellites/Lunes: 2 (Phobos, Deimos)

Caractéristiques physiques

Rayon équatorial: 3,396.2 ± 0.1 km km (0.533 x Terre)
Aplatissement: 0.00589 ± 0.00015
Superficie: 144,798,500 km² (0.284 x Terre)
Volume: 1.6318×10¹¹ km³ (0.151 x Terre)
Masse: 6.4185×10²³ kg (0.107 x Terre)
Masse volumique moyenne: 3.934 g/cm³
Gravité à la surface: 3.69 m/s²
Vitesse de libération: 5.027 km/s
Sidereal rotation period: 1.025957 day Earth days, 24.62296 h Earth hours
Inclinaison de l’axe: 25.19°
Albédo moyen: 0.15
Température de surface: 186/268 K, -87/-5 °C, -125/23 °F
Magnitude apparente: +1.8 to -2.91
Diamètre angulaire: 3.5—25.1"

Atmosphère

Composition:

95.72% Carbon Dioxide (CO₂)

2.7% Nitrogen (N₂)

1.6% Argon

0.2% Oxygen (O₂)

0.07% Carbon Monoxide (CO)

0.03% Water vapor (H₂O)

0.01% Nitrogen Oxide (NO)

2.5 ppm Neon

300 ppb Krypton

130 ppb Formaldehyde (H₂CO)

80 ppb Xenon

30 ppb Ozone (O₃)

10 ppb Methane (CH₄)

Mars images:

www.flickr.com

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