টেমপ্লেট:গ্রহ‌-পৃথিবী

উইকিপিডিয়া, মুক্ত বিশ্বকোষ থেকে
পরিভ্রমণে ঝাঁপ দিন অনুসন্ধানে ঝাঁপ দিন
পৃথিবী  Astronomical symbol of Earth

A color image of Earth as seen from Apollo 17.

The Blue Marble, taken from Apollo 17
Orbital characteristics (Epoch J2000)
অপসুর 152,097,701 কিমি
(1.016 710 333 5 [[ এইউ(AU))
অনুসুর 147,098,074 km
(0.983 289 891 2 AU)
Semi-major axis 149,597,887.5 km
(1.000 000 112 4 AU)
Semi-minor axis 149,576,999.826 km
(0.999 860 486 9 AU)
Orbital circumference 924,375,700 km
(6.179 069 900 7 AU)
Orbital eccentricity 0.016 710 219
Sidereal orbit period 365.256 366 d
(1.000 017 5 a)
Synodic period n/a
Max. orbital speed 30.287 km/s
(109,033 km/h)
Average orbital speed 29.783 km/s
(107,218 km/h)
Min. orbital speed 29.291 km/s
(105,448 km/h)
Orbital inclination to ecliptic 0
(7.25° to Sun's equator)
Longitude of the ascending node 348.739 36°
Argument of the perihelion 114.207 83°
Satellites 1 (the Moon)
(see also 3753 Cruithne)
 
Physical characteristics
Aspect Ratio 0.996 647 1
Ellipticity 0.003 352 9
 
Radius:
Equatorial 6,378.137 km
Polar 6,356.752 km
Mean 6,372.797 km
 
Diameter:
Equatorial 12,756.274 km
Polar 12,713.504 km
Mean 12,745.594 km
 
পরিধি:
বিষুবীয় 40,075.02 km
Meridional 40,007.86 km
গড় 40,041.47 km
   
Surface Area 510,065,600 km²
 Land 148,939,100 km² (29.2 %)
 Water 361,126,400 km² (70.8 %)
 
Volume 1.083 207 3×১০12 km³
ভর 5.9742×১০24 kg
ঘনত্ব 5,515.3 kg/m³
Equatorial surface gravity 9.7801 m/s²
(0.997 32 g)
Escape velocity 11.186 km/s
Sidereal rotation period 0.997 258 d (23.934 h)
Rotational velocity
(at the equator)
465.11 m/s
Axial tilt 23.439 281°
Right ascension
of North pole
0° (0 h 0 min 0 s)
Declination 90°
Albedo 0.367
Surface temperature
- min
- mean
- max

185 K (-88 °C)
287 K (14 °C)
331 K (58 °C)
Surface pressure 100 kPa
Adjective Earthling, Terrestrial, Terran
 
Atmospheric constituents
nitrogen 77 %
oxygen 21 %
argon 1 %
carbon dioxide 0.038%
water vapor trace (varies with climate)
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