Dunia

Earth
	The Blue Marble,Apollo 17,December 1972
Designations
Alternative names	The world, theglobe,Sol III,; Terra, Tellus,Gaia,Mother Earth
Adjectives	Earthly, terrestrial, terran, tellurian
Symbol	🜨 and ♁
Orbital characteristics
	EpochJ2000
Aphelion	152097597km
Perihelion	147098450km
Semi-major axis	149598023km
Eccentricity	0.0167086
Orbital period (sidereal)	365.256363004d [1.00001742096a]j)
Averageorbital speed	29.7827 km/s
Mean anomaly	358.617°
Inclination	Template:Ublist
Longitude of ascending node	−11.26064°– J2000 ecliptic
Time of perihelion	2023-Jan-04
Argument of perihelion	114.20783°
Satellites	1, theMoon
Physical characteristics
Mean radius	6371.0 km
Equatorialradius	6378.137 km
Polarradius	6356.752 km
Flattening	1/298.257222101(ETRS89)
Circumference	40075.017 kmequatorial; 40007.86 km;
Surface area	510072000km2; Land:148940000km2; Water:361132000km2;
Volume	1.08321×1012km3
Mass	5.972168×1024kg
Meandensity	5.513 g/cm3
Surface gravity	9.80665m/s2
Moment of inertia factor	0.3307
Escape velocity	11.186 km/s
Synodic rotation period	1.0 d; (24h 00 m 00s)
Sidereal rotation period	0.99726968d(23h 56 m 4.100s)
Equatorial rotation velocity	Template:Cvt
Axial tilt	23.4392811°
Albedo	Template:Ublist
Temperature	Template:Cvt; (blackbody temperature)
Surfaceequivalent doserate	0.274 μSv/h
Absolute magnitude(H)	−3.99
Atmosphere
Surfacepressure	101.325kPa(at sea level)
Composition by volume	78.08%nitrogen(dry air); 20.95%oxygen(dry air); ≤1%water vapor(variable); 0.9340%argon; 0.0415%carbon dioxide; 0.00182%neon; 0.00052%helium; 0.00017%methane; 0.00011%krypton; 0.00006%hydrogen;

Dunia(pratiik:)Surajse duur tiisraplanethae. IiSaur mandal(Solar System) ke chaarterrestrial planetme se ek hae. Iske matlab ii hae ki iskemass solidhae. Aur tiin terrestrial planet haeMercury,VenusaurMars.

Dunia me dher rakam keperraurjanwarhae,^[6]jismeadmiibhi hae. Duniauniverseke ekke jagha hae jahan pe ii jaana jaawe hae ki jew hae.^[7]Sciencese ii pataa lage hae ki dunia 4.5 billion saal pahile banaa rahaa.^[8]^[9]Dunia me rahe waala chij dunia ke hawaa ke badal diin hae.^[10]

Dunia ke 71% of surfacekhaara paaniwaalaoceanse covered hae.^[11]Baaki 29% me patthar waala jamiincontinentaurislandke ruup me hae. DuniaSolar Systemke aur planet se interact kare hae,particularlyjaada kar keSurajaaurChandarmase. Dunia, Suraj ke around orbit kare hae har 365.25 din me. Ek nachaai ke ekdinbola jaawe hae aur ek orbit ke eksaalbolaa jaawe hae. Dunia ke lage khaali ek chandarma hae.

Notes

References

↑Park, Ryan (9 May 2022)."Horizons Batch Call for 2023 Perihelion".NASA/JPL.Archivedfrom the original on 3 July 2022.Retrieved3 July2022.
↑World Geodetic System(WGS-84).Available online Archived11 Maach 2020 at theWayback MachinefromNational Geospatial-Intelligence Agency.
↑meridionalEarth'scircumferenceis 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.
↑"Atmospheres and Planetary Temperatures".American Chemical Society.18 July 2013. Archived fromthe originalon 27 January 2023.Retrieved3 January2023.
↑United Nations Scientific Committee on the Effects of Atomic Radiation (2008).Sources and effects of ionizing radiation.New York: United Nations (published 2010). Table 1.ISBN 978-92-1-142274-0.http://www.unscear.org/unscear/en/publications/2008_1.html.Retrieved 9 November 2012.
↑How Many Species are There on Earth.Harvard University. Retrieved on28 Julai 2009.
↑"BBC: The Earth".BBC.Archivedfrom the original on 2001-08-16.Retrieved2009-07-28.
↑The age of the Earth in the twentieth century- a problem (mostly) solved.Geological Society, London, Special Publications. Retrieved on28 Julai 2009.
↑History of earth.Microsoft.Retrieved on28 Julai 2009.
↑Origins of life on Earth.Space.com. Archived fromthe originalon11 Juun 2001.Retrieved on28 Julai 2009.
↑Rover reveals Mars was once wet enough for life.Microsoft.Retrieved on28 Julai 2009.

Duusra websites

"Solar Views".Calvin J. Hamilton.Retrieved 06-08-2009.Check date values in:|accessdate=(help)
"NASA – Earth".Nasa. Archived fromthe originalon 2005-03-10.Retrieved 06-08-2009.Check date values in:|accessdate=(help)

[1] Park, Ryan (9 May 2022)."Horizons Batch Call for 2023 Perihelion".NASA/JPL.Archivedfrom the original on 3 July 2022.Retrieved3 July2022.

[2] World Geodetic System(WGS-84).Available online Archived11 Maach 2020 at theWayback MachinefromNational Geospatial-Intelligence Agency.

[3] ridionalEarth'scircumferenceis 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.

[4] "Atmospheres and Planetary Temperatures".American Chemical Society.18 July 2013. Archived fromthe originalon 27 January 2023.Retrieved3 January2023.

[5] United Nations Scientific Committee on the Effects of Atomic Radiation (2008).Sources and effects of ionizing radiation.New York: United Nations (published 2010). Table 1.ISBN 978-92-1-142274-0.http://www.unscear.org/unscear/en/publications/2008_1.html.Retrieved 9 November 2012.

[6] How Many Species are There on Earth.Harvard University. Retrieved on28 Julai 2009.

[7] "BBC: The Earth".BBC.Archivedfrom the original on 2001-08-16.Retrieved2009-07-28.

[age_earth-8] The age of the Earth in the twentieth century- a problem (mostly) solved.Geological Society, London, Special Publications. Retrieved on28 Julai 2009.

[9] History of earth.Microsoft.Retrieved on28 Julai 2009.

[10] Origins of life on Earth.Space.com. Archived fromthe originalon11 Juun 2001.Retrieved on28 Julai 2009.

[11] Rover reveals Mars was once wet enough for life.Microsoft.Retrieved on28 Julai 2009.

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v•d•e Saur mandal (Solar System)

Suraj • Heliosphere	Grah (Planets) ☾=Chaand∅=rings		Budhgrah (Mercury)	Sukhgrah (Venus)	Dunia (Earth)☾	Mangalgrah (Mars)☾

			Brahaspati (Jupiter)☾∅	Sanigrah (Saturn)☾∅	Arungrah (Uranus)☾∅	Varungrah (Neptune)☾∅

	Bauna grah (Dwarf planet)		Ceres	Pluto☾	Haumea☾	Makemake

			Eris☾

	Small Solar System bodies	Chhota tara (Asteroid) (minor planets)	Groups and families:Vulcanoids·Near-Earth asteroids·Asteroid belt Jupiter Trojans·Centaurs·Neptune Trojans·Asteroid moons·Meteoroids·Pallas·Juno·Vesta·Hygiea·
		Chhota tara (Asteroid) (minor planets)	See also thelist of asteroids.

		Trans- Neptunians	Kuiper belt–Plutinos:Orcus·Ixion–Cubewanos:Varuna· Quaoar·Huya
		Trans- Neptunians	Scattered disc:Sedna

		Jhaarru	Lists ofperiodicandnon-periodiccomets Damocloids·Hills cloud·Oort cloud
See also thelist of solar system objects