Template:Planet Infobox/Mercury
വിക്കിപീഡിയ, ഒരു സ്വതന്ത്ര വിജ്ഞാനകോശം.
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Orbital characteristics (Epoch J2000) | |||||||
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Avg. distance from Sun | 57,909,176 km 0.387 098 93 AU |
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Orbital circumference | 360,000,000 km (2.406 AU) |
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Eccentricity | 0.205 630 69 | ||||||
Perihelion | 46,001,272 km 0.307 499 51 AU |
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Aphelion | 69,817,079 km 0.466 698 35 AU |
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Orbital period | 87.969 34 d (0.240 846 9 a) |
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Synodic period | 115.8776 d | ||||||
Avg. Orbital Speed | 47.36 km/s | ||||||
Max. Orbital Speed | 58.98 km/s | ||||||
Min. Orbital Speed | 38.86 km/s | ||||||
Inclination | 7.004 87° (3.38° to Sun's equator) |
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Longitude of the ascending node |
48.331 67° | ||||||
Argument of the perihelion |
29.124 78° | ||||||
Number of satellites | 0 | ||||||
Physical characteristics | |||||||
Equatorial diameter | 4879.4 km (0.383 Earths) |
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Surface area | 7.5Template:E km² (0.147 Earths) |
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Volume | 6.083Template:E km³ (0.056 Earths) |
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ഭാരം | 3.302Template:E kg (0.055 Earths) |
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Mean സാന്ദ്രത | 5.427 g/cm³ | ||||||
Equatorial ഗുരുത്വം | 3.701 m/s² (0.377 gee) |
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വിടുതല് പ്രവേഗം | 4.435 km/s | ||||||
Rotation period | 58.6462 d (58 d 15.5088 h) | ||||||
Rotation velocity | 10.892 km/h (at the equator) | ||||||
Axial tilt | ~0.01° | ||||||
Right ascension of North pole |
281.01° (18 h 44 min 2 s) 1 | ||||||
Declination | 61.45° | ||||||
Albedo | 0.10-0.12 | ||||||
Surface temp. |
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Avg. Surface temp.: Day | 623 K | ||||||
Avg. Surface temp.: Night | 103 K | ||||||
Adjective | Mercurian | ||||||
Atmospheric characteristics | |||||||
Atmospheric pressure | trace | ||||||
Potassium | 31.7% | ||||||
Sodium | 24.9% | ||||||
Atomic Oxygen | 9.5% | ||||||
Argon | 7.0% | ||||||
Helium | 5.9% | ||||||
Molecular Oxygen | 5.6% | ||||||
Nitrogen | 5.2% | ||||||
Carbon dioxide | 3.6% | ||||||
Water | 3.4% | ||||||
Hydrogen | 3.2% |