Earth: Difference between revisions
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| caption = A photograph taken by the crew of Ursa 3 in 2027. <!-- image caption --> | | caption = A photograph taken by the crew of Ursa 3 in 2027. <!-- image caption --> | ||
| background = <!-- #FFFFC0 --> | | background = <!-- #FFFFC0 --> | ||
| discovery_ref = | | discovery_ref = | ||
| discoverer = <!-- person(s), survey --> | | discoverer = <!-- person(s), survey --> | ||
| discovery_site = | | discovery_site = | ||
| Line 19: | Line 19: | ||
| designations = <!-- Defunct. Do not use it. Remove it from existing templates. --> | | designations = <!-- Defunct. Do not use it. Remove it from existing templates. --> | ||
| mpc_name = | | mpc_name = | ||
| pronounced = | | pronounced = <!-- IPA string --> | ||
| named_after = | | named_after = | ||
| alt_names = {{wp|Gaia}}, [[wiktionary:Terra|Terra]], {{wp|Terra (mythology)|Tellus}}, the {{wp|world|world}}, the {{wp|globe|globe}} | | alt_names = {{wp|Gaia}}, [[wiktionary:Terra|Terra]], {{wp|Terra (mythology)|Tellus}}, the {{wp|world|world}}, the {{wp|globe|globe}} | ||
| mp_category = | | mp_category = | ||
| adjectives = Earthly, terrestrial, terran, tellurian | | adjectives = Earthly, terrestrial, terran, tellurian | ||
| orbit_ref = | | orbit_ref = | ||
| orbit_diagram = <!-- [[File:...|260px]]--> | | orbit_diagram = <!-- [[File:...|260px]]--> | ||
| epoch = {{wp|J2000.0|J2000}} | | epoch = {{wp|J2000.0|J2000}} | ||
| Line 40: | Line 40: | ||
| mean_orbit_radius = | | mean_orbit_radius = | ||
| eccentricity = {{val|0.0167086}} | | eccentricity = {{val|0.0167086}} | ||
| period = {{convert|365.256363004|d|yr|comma=gaps|abbr=on|lk=out|disp=x|<br /><small>(| | | period = {{convert|365.256363004|d|yr|comma=gaps|abbr=on|lk=out|disp=x|<br /><small>(|{{wp|Julian year (astronomy)|<sub>j</sub>}})</small>}} | ||
| synodic_period = | | synodic_period = | ||
| avg_speed = {{convert|29.78|km/s|km/h mph|comma=gaps|abbr=on|disp=x|<br /><small>(|)</small>}}<!--(Average orbital speed)--> | | avg_speed = {{convert|29.78|km/s|km/h mph|comma=gaps|abbr=on|disp=x|<br /><small>(|)</small>}}<!--(Average orbital speed)--> | ||
| mean_anomaly = {{val|358.617|u=°}} | | mean_anomaly = {{val|358.617|u=°}} | ||
| mean_motion = <!--(Instantaneous orbital mean motion)--> | | mean_motion = <!--(Instantaneous orbital mean motion)--> | ||
| inclination = {{ublist|class=nowrap |{{val|7.155|u=°}} to the | | inclination = {{ublist|class=nowrap |{{val|7.155|u=°}} to the {{wp|Sun|Sun}}'s equator; |{{val|1.57869|u=°}} to {{wp|invariable plane|invariable plane}}; |{{val|0.00005|u=°}} to J2000 {{wp|ecliptic|ecliptic}}}} | ||
| angular_dist = <!--(Angular distance)--> | | angular_dist = <!--(Angular distance)--> | ||
| asc_node = {{val|-11.26064|u=°}} to J2000 ecliptic<!--(Longitude of ascending node)--> | | asc_node = {{val|-11.26064|u=°}} to J2000 ecliptic<!--(Longitude of ascending node)--> | ||
| Line 54: | Line 54: | ||
| satellite_of = | | satellite_of = | ||
| satellites = {{unbulleted list | | satellites = {{unbulleted list | ||
| 1 natural satellite: the | | 1 natural satellite: the {{wp|Moon|Moon}} | ||
| 5 | | 5 {{wp|quasi-satellite|quasi-satellite}}s | ||
| >4 500 operational | | >4 500 operational {{wp|artificial satellite|artificial satellite}}s | ||
| >18 000 tracked | | >18 000 tracked {{wp|space debris|space debris}} | ||
}} | }} | ||
| star = | | star = | ||
| Line 69: | Line 69: | ||
| neptune_moid = | | neptune_moid = | ||
| tisserand = <!--(Jupiter Tisserand parameter)--> | | tisserand = <!--(Jupiter Tisserand parameter)--> | ||
| p_orbit_ref = | | p_orbit_ref = | ||
| p_semimajor = | | p_semimajor = | ||
| p_eccentricity = | | p_eccentricity = | ||
| Line 76: | Line 76: | ||
| perihelion_rate = <!--(Proper perihelic precession rate)--> | | perihelion_rate = <!--(Proper perihelic precession rate)--> | ||
| node_rate = <!--(Proper nodal precession rate)--> | | node_rate = <!--(Proper nodal precession rate)--> | ||
| physical_ref = | | physical_ref = | ||
| dimensions = <!--(Uni/bi/tri-axial dimensions)--> | | dimensions = <!--(Uni/bi/tri-axial dimensions)--> | ||
| mean_diameter = <!--(For large, spheroidal minor planets)--> | | mean_diameter = <!--(For large, spheroidal minor planets)--> | ||
| Line 82: | Line 82: | ||
| equatorial_radius = {{convert|6378.137|km|mi|comma=gaps|abbr=on|disp=x| <small>(|)</small>}} | | equatorial_radius = {{convert|6378.137|km|mi|comma=gaps|abbr=on|disp=x| <small>(|)</small>}} | ||
| polar_radius = {{convert|6356.752|km|mi|comma=gaps|abbr=on|disp=x| <small>(|)</small>}} | | polar_radius = {{convert|6356.752|km|mi|comma=gaps|abbr=on|disp=x| <small>(|)</small>}} | ||
| flattening = 1/{{val|298.257222101}} | | flattening = 1/{{val|298.257222101}} | ||
| circumference = | | circumference = | ||
{{unbulleted list |class=nowrap | {{unbulleted list |class=nowrap | ||
| {{convert|40075.017|km|mi|comma=gaps|abbr=on|disp=x| <small> | | {{convert|40075.017|km|mi|comma=gaps|abbr=on|disp=x| <small>{{wp|equator|equator}}ial (|)</small>}} | ||
| {{convert|40007.86|km|mi|comma=gaps|abbr=on|disp=x| <small> | | {{convert|40007.86|km|mi|comma=gaps|abbr=on|disp=x| <small>{{wp|Meridian (geography)|meridional}} (|)</small>}} | ||
}} | }} | ||
| surface_area = | | surface_area = | ||
| Line 97: | Line 97: | ||
| mass = {{val|5.97237|e=24|u=kg}} <small>({{val|1.31668|e=25|u=lb}})</small> <small>({{val|3.0|e=-6|ul=solar mass}})</small> | | mass = {{val|5.97237|e=24|u=kg}} <small>({{val|1.31668|e=25|u=lb}})</small> <small>({{val|3.0|e=-6|ul=solar mass}})</small> | ||
| density = {{convert|5.514|g/cm3|lb/cuin|comma=gaps|abbr=on|disp=x| <small>(|)</small>}} | | density = {{convert|5.514|g/cm3|lb/cuin|comma=gaps|abbr=on|disp=x| <small>(|)</small>}} | ||
| surface_grav = {{convert|9.80665|m/s2|ft/s2|comma=gaps|abbr=on|disp=x| <small>( | | surface_grav = {{convert|9.80665|m/s2|ft/s2|comma=gaps|abbr=on|disp=x| <small>({{wp|Gravity of Earth|{{val|1|u=''g''}}}}; |)</small>}}<!--(Equatorial surface gravity)--> | ||
| moment_of_inertia_factor = 0.3307<!--(Moment of inertia factor)--> | | moment_of_inertia_factor = 0.3307<!--(Moment of inertia factor)--> | ||
| escape_velocity = {{convert|11.186|km/s|km/h mph|comma=gaps|abbr=on|disp=x| <small>(|)</small>}} | | escape_velocity = {{convert|11.186|km/s|km/h mph|comma=gaps|abbr=on|disp=x| <small>(|)</small>}} | ||
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| pole_ecliptic_lat = <!--(Pole ecliptic latitude)--> | | pole_ecliptic_lat = <!--(Pole ecliptic latitude)--> | ||
| pole_ecliptic_lon = <!--(Pole ecliptic longitude)--> | | pole_ecliptic_lon = <!--(Pole ecliptic longitude)--> | ||
| albedo = {{ublist|class=nowrap |0.367 | | albedo = {{ublist|class=nowrap |0.367 {{wp|Geometric albedo|geometric}} |0.306 {{wp|Bond albedo|Bond}}}} | ||
| single_temperature = | | single_temperature = | ||
| temp_name1 = Celsius | | temp_name1 = Celsius | ||
| Line 131: | Line 131: | ||
| abs_magnitude = <!--(Absolute magnitude)--> | | abs_magnitude = <!--(Absolute magnitude)--> | ||
| angular_size = | | angular_size = | ||
| atmosphere_ref = | | atmosphere_ref = | ||
| surface_pressure = {{val|101.325|ul=kPa}} (at | | surface_pressure = {{val|101.325|ul=kPa}} (at {{wp|Sea level|MSL}}) | ||
| scale_height = | | scale_height = | ||
| atmosphere_composition = | | atmosphere_composition = | ||
{{unbulleted list |class=nowrap | {{unbulleted list |class=nowrap | ||
| 78.08% | | 78.08% {{wp|nitrogen|nitrogen}} (N<sub>2</sub>; dry air) | ||
| 20.95% | | 20.95% {{wp|oxygen|oxygen}} (O<sub>2</sub>) | ||
| ~ 1% | | ~ 1% {{wp|watr vapor|water vapor}} <small>({{wp|climate|climate}} variable)</small> | ||
| 0.9340% | | 0.9340% {{wp|argon|argon}} | ||
| 0.0413% | | 0.0413% {{wp|carbon dioxide|carbon dioxide}} | ||
| 0.00182% | | 0.00182% {{wp|neon|neon}} | ||
| 0.00052% | | 0.00052% {{wp|helium|helium}} | ||
| 0.00019% | | 0.00019% {{wp|methane|methane}} | ||
| 0.00011% | | 0.00011% {{wp|krypton|krypton}} | ||
| 0.00006% | | 0.00006% {{wp|hydrogen|hydrogen}} | ||
}} | }} | ||
| note = | | note = | ||
Latest revision as of 10:10, 23 May 2022
 | This article is incomplete because it is pending further input from participants, or it is a work-in-progress by one author. Please comment on this article's talk page to share your input, comments and questions. Note: To contribute to this article, you may need to seek help from the author(s) of this page. |
.jpg) A photograph taken by the crew of Ursa 3 in 2027. | |||||||||||||
| Designations | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gaia, Terra, Tellus, the world, the globe | |||||||||||||
| Adjectives | Earthly, terrestrial, terran, tellurian | ||||||||||||
| Orbital characteristics | |||||||||||||
| Epoch J2000 | |||||||||||||
| Aphelion | 152100000 km (94500000 mi) | ||||||||||||
| Perihelion | 147095000 km (91401000 mi) | ||||||||||||
| Periastron | 2022-Jan-04 | ||||||||||||
| 149598023 km (92955902 mi)> | |||||||||||||
| Eccentricity | 0.0167086 | ||||||||||||
| 365.256363004 d (1.00001742096 aj) | |||||||||||||
Average orbital speed | 29.78 km/s (107200 km/h; 66600 mph) | ||||||||||||
| 358.617° | |||||||||||||
| Inclination |
| ||||||||||||
| −11.26064° to J2000 ecliptic | |||||||||||||
| 114.20783° | |||||||||||||
| Known satellites |
| ||||||||||||
| Physical characteristics | |||||||||||||
Mean radius | 6371.0 km (3958.8 mi) | ||||||||||||
Equatorial radius | 6378.137 km (3963.191 mi) | ||||||||||||
Polar radius | 6356.752 km (3949.903 mi) | ||||||||||||
| Flattening | 1/298.257222101 | ||||||||||||
| Circumference |
| ||||||||||||
| |||||||||||||
| Volume | 1.08321×1012 km3 (2.59876×1011 cu mi) | ||||||||||||
| Mass | 5.97237×1024 kg (1.31668×1025 lb) (3.0×10−6 M☉) | ||||||||||||
Mean density | 5.514 g/cm3 (0.1992 lb/cu in) | ||||||||||||
Equatorial surface gravity | 9.80665 m/s2 (1 g; 32.1740 ft/s2) | ||||||||||||
| 0.3307 | |||||||||||||
Equatorial escape velocity | 11.186 km/s (40270 km/h; 25020 mph) | ||||||||||||
1.0 d (24h 00m 00s) | |||||||||||||
Sidereal rotation period | 0.99726968 d (23h 56m 4.100s) | ||||||||||||
Equatorial rotation velocity | 0.4651 km/s (1674.4 km/h; 1040.4 mph) | ||||||||||||
| 23.4392811° | |||||||||||||
| |||||||||||||
| Atmosphere | |||||||||||||
Surface pressure | 101.325 kPa (at MSL) | ||||||||||||
| Composition by volume | |||||||||||||
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