'S e planaid a tha anns an Talamh, a' Chruinne no an t-Saoghal, air a bheil sinn a' fuireach. Tha aon ghealach aige agus 's e treas ball de rian na grèine.

An Talamh

Dealbh-camara "Marbhal gorm" dhen Talamh, mar a chaidh a thogail rè misean Apollo 17 ann an 1972
Feartan na cuairte (Ceann-aimsir J2000)
Aphelion 152,100,000 km (94,500,000 mi)
(1.01673 AU)
Perihelion 147,095,000 km (91,401,000 mi)
(0.9832687 AU)
Aiseal dàrnach 149,598,023 km (92,955,902 mi)
(1.000001018 AU)[1]
Neo-mheadhanachd 0.0167 086[1]
Ùine na cuairte 365.256363004 là [2]
(1.00001742096 bliadhna Iulianach)
Luaths cuibheasach na reul-cuairte 29.78 km/s (18.50 mi/s)[3]
(107,200 km/h (66,600 mph))
Neo-choitcheannachd meadhain 358.617°
Claonadh 0.00005° an coimeas na h-èicliptich
7.155° an coimeas crios-meadhain na Grèine
1.57869°[4] an coimeas plèana neo-chaochlaideach
Domhan-fhad an nòd-dìridh −11.260 64° an coimeas na h-èicliptich[3]
Argamaid a' perihelion 114.20783°[3]
Saidealan air a bheil sinn eòlach Aon fhear nàdarra
Corr is 1381 feadhainn fhuadain[5]
Feartan fiosaigeach
Rèideas meadhain 6,371.0 km (3,958.8 mi)[6]
Rèideas meadhan-chriosach 6,378.1 km (3,963.2 mi)[7][8]
Rèideas pòlarach 6,356.8 km (3,949.9 mi)[9]
Leathnachadh 0.003 3528
1/298.257222101 (ETRS89)[10]
Cearcall-thomhas 40,075.017 km (24,901.461 mi) (meadhan-chriosach)[8]
40,007.86 km (24,859.73 mi) (meadhan-loidhneach)[11]
Farsaingeachd an uachdair 510,072,000 km2 (196,940,000 mi2)[12][13]
  • Tìr: 148,940,000 km2 (57,510,000 mi2) (29.2%)
  • Cuan: 361,132,000 km2 (139,434,000 mi2) (70.8%)
Tomhas lìonaidh 1.083 21×1012 km3 (2.59876×1011 mi3)[3]
Tomad 5.97237×1024 kg (1.31668×1025 lb)[14]
(3.0×10−6 M)
Dùmhlachd meadhain 5.514 g/cm3 (0.1992 lb/in3)[3]
Iom-tharraing air an uachdair 9.807 m/s2 (32.18 ft/s2)[15]
(1 g)
Factar na mòmaid tàmhachd 0.3307[16]
Luaths teichidh 11.186 km/s (6.951 mi/s)[3]
Ùine a' chuir reultaich 0.997 269 68 là[17]
(23h 56m 4.100s)
Luaths cuir an reul-chriosa 1,674.4 km/h (1,040.4 mph)[18]
Claonadh an aiseil 23.4392811°[2]
Albedo 0.306 (Bond)[3]
0.367 (geomatrach)[3]
Teothachd Kelvin
  • As ìsle: 184 K[19]
  • Meadhain: 288 K[20]
  • As àirde: 330 K[21]

Celsius

  • As ìsle: −89.2 °C
  • Meadhain: 15 °C
  • As àirde: 56.7 °C

Fahrenheit

  • As ìsle: −128.5 °F
  • Meadhain: 59 °F
  • As àirde: 134 °F
Àile
Brùthadh-àile air an uachdar 101.325 kPa (air uachdar meadhain a' chuain)
Stuthan Gasan:

Tha na cuain (sa bheil sàl) a' cuibhrigeadh mu deidhinn 70% de barr na talmhainn. 'S e tìr (talamh tioram) a tha anns an 30% eile. Tha aille a' cuairteachadh na talmhainn. Canar an adhar ris an àile seo.

Tha an talamh a' cuairteachadh na grèine aig astar 93,000,000 mìltean (1.6 km = 1 mìle). Canaidh sinn bliadhna ris an ùine a tha i a' gearradh gach cuairt.

Air barrachd an sin bithidh an talamh còmhnaidh na tionndadh mu deidhinn "aiseal" a ruitheas tro meadhan a tomaid. Is e an tionndadh seo, a bhitheas a' toirt 24 uairean a dh'adhbharaicheas latha agus oidhche

Aistean eile

deasaich

Iomraidhean

deasaich
  1. 1.0 1.1 Simon, J.L., Bretagnon, P.; Chapront, J.; Chapront-Touzé, M.; Francou, G.; Laskar, J. (An Gearran 1994): “Numerical expressions for precession formulae and mean elements for the Moon and planets,” ann an: Astronomy and Astrophysics, leabhar 282, àir. 2, td. 663–683. Bibcode: 1994A&A...282..663S.
  2. 2.0 2.1 Staff (7 An Lùnastal 2007). "Useful Constants". International Earth Rotation and Reference Systems Service. Retrieved 23 dhen t-Sultain 2008. {{cite web}}: Check date values in: |date= (help)
  3. 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 Williams, David R. (1 An t-Sultain 2004). "Earth Fact Sheet". NASA. Retrieved 9 dhen Lùnastal 2010. {{cite web}}: Check date values in: |date= (help)
  4. Allen, Clabon Walter, Cox, Arthur N. (2000): Allen's Astrophysical Quantities. Springer, td. 294. ISBN 0-387-98746-0. Air a thogail 13 dhen Mhàrt 2011. 
  5. "UCS Satellite Database". Nuclear Weapons & Global Security. Union of Concerned Scientists. 1 dhen t–Sultain 2015. Retrieved 4 dhen Ghiblean 2016.{{cite web}}: CS1 maint: date format (link)
  6. Various (2000): ann an: David R. Lide: Handbook of Chemistry and Physics, 81st deas., CRC. ISBN 0-8493-0481-4. 
  7. "Selected Astronomical Constants, 2011". The Astronomical Almanac. Archived from the original on 26 dhen Lùnastal 2013. Retrieved 25 dhen Ghearran 2011.
  8. 8.0 8.1 World Geodetic System (WGS-84). Ri fhaighinn air loidhne o National Geospatial-Intelligence Agency.
  9. Cazenave, Anny (1995): “Geoid, Topography and Distribution of Landforms”, ann an: Ahrens, Thomas J: Global Earth Physics: A Handbook of Physical Constants. Washington, DC: American Geophysical Union. ISBN 0-87590-851-9. Air a thasglannadh [o ] 16 dhen Dàmhair 2006. 
  10. International Earth Rotation and Reference Systems Service (IERS) Working Group (2004): “General Definitions and Numerical Standards”, IERS Conventions (2003), Frankfurt am Main: Verlag des Bundesamts für Kartographie und Geodäsie, td. 12. ISBN 3-89888-884-3. Air a thogail 29mh dhen Ghiblean 2016 (PDF). 
  11. Humerfelt, Sigurd (26 dhen Dàmhair 2010). "How WGS 84 defines Earth". Retrieved 29 dhen Ghiblean 2011.
  12. Pidwirny, Michael (2 dhen Ghearran 2006). "Surface area of our planet covered by oceans and continents.(Table 8o-1)". University of British Columbia, Okanagan. Retrieved 26 dhen t–Samhain 2007.{{cite web}}: CS1 maint: date format (link)
  13. Staff (24 dhen Iuchar 2008). "World". The World Factbook. Central Intelligence Agency. Retrieved 5 dhen Lùnastal 2008.
  14. Luzum, Brian, Capitaine, Nicole; Fienga, Agnès; Folkner, William; Fukushima, Toshio; Hilton, James; Hohenkerk, Catherine; Krasinsky, George; Petit, Gérard; Pitjeva, Elena; Soffel, Michael; Wallace, Patrick (An Lùnastal 2011): “The IAU 2009 system of astronomical constants: The report of the IAU working group on numerical standards for Fundamental Astronomy,” ann an: Celestial Mechanics and Dynamical Astronomy, leabhar 110, àir. 4, td. 293–304. Bibcode: 2011CeMDA.110..293L. doi:10.1007/s10569-011-9352-4.
  15. (): The international system of units (SI), 2008 deas., United States Department of Commerce, NIST Special Publication 330, td. 52. 
  16. Williams, James G. (1994): “Contributions to the Earth's obliquity rate, precession, and nutation,” ann an: The Astronomical Journal, leabhar 108, td. 711. ISSN 0004-6256. Bibcode: 1994AJ....108..711W. doi:10.1086/117108.
  17. Allen, Clabon Walter, Cox, Arthur N. (2000): Allen's Astrophysical Quantities. Springer, td. 296. ISBN 0-387-98746-0. Air a thogail 17 dhen Lùnastal 2010. 
  18. (2000): ann an: Arthur N. Cox: Allen's Astrophysical Quantities, 4th deas., New York: AIP Press, td. 244. ISBN 0-387-98746-0. Air a thogail 17 dhen Lùnastal 2010. 
  19. "World: Lowest Temperature". WMO Weather and Climate Extremes Archive. Arizona State University. Retrieved 7 dhen Lùnastal 2010.
  20. Kinver, Mark (10 dhen Dùbhlachd 2009). "Global average temperature may hit record level in 2010". BBC Online. Retrieved 22 dhen Ghiblean 2010.
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  22. National Oceanic and Atmospheric Administration (5 dhen Dùbhlachd 2014). "Trends in Atmospheric Carbon Dioxide". Earth System Research Laboratory.