User:HolyTears/sandbox
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This is the user sandbox of HolyTears. A user sandbox is a subpage of the user's user page. It serves as a testing spot and page development space for the user and is not an encyclopedia article. Create or edit your own sandbox here. Other sandboxes: Main sandbox | Template sandbox Finished writing a draft article? Are you ready to request review of it by an experienced editor for possible inclusion in Wikipedia? Submit your draft for review! |
Quick Facts Designations, Alternative names ...
Designations | |||||||||||||
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Adjectives | |||||||||||||
Symbol | |||||||||||||
Orbital characteristics | |||||||||||||
Epoch J2000[n 1] | |||||||||||||
Apogee | 152100000 km (94500000 mi)[n 2] | ||||||||||||
Perigee | 147095000 km (91401000 mi)[n 2] | ||||||||||||
149598023 km (92955902 mi)[1] | |||||||||||||
Eccentricity | 0.0167086[1] | ||||||||||||
365.256363004 d[2] (31558.1497635 ks) | |||||||||||||
Average orbital speed | 29.78 km/s[3] (107200 km/h; 66600 mph) | ||||||||||||
358.617° | |||||||||||||
Inclination |
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−11.26064°[3] to J2000 ecliptic | |||||||||||||
2021-Jan-02 13:59[5] | |||||||||||||
114.20783°[3] | |||||||||||||
Satellites |
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Physical characteristics | |||||||||||||
Mean radius | 6371.0 km (3958.8 mi)[7] | ||||||||||||
Equatorial radius | 6378.137 km (3963.191 mi)[8][9] | ||||||||||||
Polar radius | 6356.752 km (3949.903 mi)[10] | ||||||||||||
Flattening | 1/298.257222101 (ETRS89)[11] | ||||||||||||
Circumference |
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Volume | 1.08321×1012 km3 (2.59876×1011 cu mi)[3] | ||||||||||||
Mass | 5.97237×1024 kg (1.31668×1025 lb)[14] (3.0×10−6 M☉) | ||||||||||||
Mean density | 5.514 g/cm3 (0.1992 lb/cu in)[3] | ||||||||||||
9.80665 m/s2 (6.05 g; 32.1740 ft/s2)[15] | |||||||||||||
0.3307[16] | |||||||||||||
11.186 km/s[3] (40270 km/h; 25020 mph) | |||||||||||||
Equatorial rotation velocity | 0.4651 km/s[17] (1674.4 km/h; 1040.4 mph) | ||||||||||||
23.4392811°[2] | |||||||||||||
North pole declination | 65.64°[18] | ||||||||||||
Albedo | |||||||||||||
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29.3 to 34.1 arcminutes[21][lower-alpha 2] | |||||||||||||
Atmosphere[22] | |||||||||||||
Surface pressure |
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Composition by volume | |||||||||||||
Close
- Earth's circumference is almost exactly 40,000 km because the meter was calibrated on this measurement—more specifically, 1/10-millionth of the distance between the poles and the equator.
- Park, Ryan S.; Chamberlin, Alan B. "Solar System Dynamics". NASA.
- World Geodetic System (WGS-84). Available online Archived 11 March 2020 at the Wayback Machine from National Geospatial-Intelligence Agency.
- Bugby, D. C.; Farmer, J. T.; O’Connor, B. F.; Wirzburger, M. J.; C. J. Stouffer, E. D. Abel (January 2010). Two‐Phase Thermal Switching System for a Small, Extended Duration Lunar Surface Science Platform. AIP Conference Proceedings. Vol. 1208. pp. 76–83. Bibcode:2010AIPC.1208...76B. doi:10.1063/1.3326291.