Mars
Mars ita ce duniya ta hudu daga Rana kuma ta biyu mafi k[1]arami a cikin tsarin hasken rana, wanda ya fi Mercury girma. A cikin harshen Ingilishi, ana kiran Mars don allah yaƙi na Romawa.[2] Mars duniya ce ta duniya mai sirin yanayi (kasa da 1% na duniya), kuma tana da ɓawon burodi da farko da ta ƙunshi abubuwa kama da ɓawon ƙasa, da kuma ɓangarorin ƙarfe da nickel. Mars yana da fasali na sama kamar tasirin tasiri, kwaruruka, dunes da iyakoki na kankara. Yana da ƙananan wata guda biyu da siffa ba bisa ƙa'ida ba, Phobos da Deimos.
Mars .svg){kind=small} | |
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Observation (en)  | |
| Distance from Earth (en) | 54,600,000 km da 401,000,000 km |
| Apparent magnitude (en) | −2.94 da 1.86 |
| Parent astronomical body (en) | rana |
| Suna saboda |
Mars (en) da Ares (en) |
| Orbit (en) | |
| Apoapsis (en) | 249,232,432 km |
| Periapsis (en) | 206,655,215 km |
| Semi-major axis of an orbit (en) |
227,936,637 km 1.523679 AU |
| Orbital eccentricity (en) | 0.0933941 |
| Orbital period (en) | 686.98 Rana |
| Synodic period (en) | 779.94 Rana |
| Orbital speed (en) | 24.077 km/h |
| Mean anomaly (en) | 19.3564 ° |
| Orbital inclination (en) |
1.84969142 ° 5.65 ° 1.67 ° |
| Longitude of the ascending node (en) | 49.55953892 ° |
| Argument of periapsis (en) | 336.05637041 ° |
| Physics (en) | |
| Radius (en) | 3,389.5 km |
| Diameter (en) | 6,791.432 km |
| Flatness (en) | 0.00589 |
| Yawan fili | 144,798,500 km² |
| Volume (en) | 163,180,000,000 km³ |
| Nauyi | 641.71 Yg |
| Mass density (en) | 3,933 g/cm³ |
| Effective temperature (en) |
−63 °C −143 °C 35 °C |
| Albedo (en) |
0.17 0.25 |
| Farawa | 4,540 million years BCE |
Wasu daga cikin abubuwan da aka fi sani da su a duniyar Mars sun hada da Olympus Mons, mafi girman dutsen mai aman wuta da dutsen da aka fi sani da shi a cikin Solar System da Valles Marineris, daya daga cikin manyan canyons a cikin Solar System. Basin Borealis a Arewacin Hemisphere ya ƙunshi kusan kashi 40% na duniya kuma yana iya zama babban fasalin tasiri. Kwanaki da yanayi a duniyar Mars sun yi kama da na duniya, saboda taurari suna da irin wannan lokacin juyi da karkatar da axis na jujjuyawa dangane da jirgin saman husufi. Ruwa a saman duniyar Mars ba zai iya wanzuwa ba saboda ƙarancin yanayin, wanda bai kai kashi ɗaya cikin ɗari na matsi na yanayi a duniya ba. Dukansu biyun ƙanƙaramar ƙanƙara ta duniyar Mars da alama an yi su ne da ruwa. A baya mai nisa, mai yiwuwa Mars ta kasance da ruwa, don haka mai yiwuwa ya fi dacewa da rayuwa. Ba a san ko rayuwa ta taba wanzuwa a duniyar Mars.