Orders of magnitude (area)
      
This page is a progressive and labelled list of the SI area orders of magnitude, with certain examples appended to some list objects.
10−70 to 10−9 square metres
List of orders of magnitude for area
| Factor (m2) | 
Multiple | 
Value | 
Item | 
| 10−70 | 
  | 
2.6×10−70 m2 | 
Planck area,  [1] | 
| 10−52 | 
  | 
10−52 m2 | 
1 shed[2] | 
| 10−48 | 
1 square yoctometre (ym2) | 
 1 ym2 | 
  | 
| 10−43 | 
  | 
100,000 ym2 | 
1 femtobarn[3] | 
| 10−42 | 
1 square zeptometre (zm2) | 
 1 zm2 | 
  | 
| 10−36 | 
1 square attometre (am2) | 
 1 am2 | 
  | 
| 10−30 | 
1 square femtometre (fm2) | 
 1 fm2 | 
  | 
| 10−29 | 
  | 
66.52 fm2 | 
 Thomson cross-section of the electron[4] | 
| 10−28 | 
  | 
100 fm2 | 
1 barn, roughly the cross-sectional area of an uranium nucleus[5] | 
| 10−24 | 
1 square picometre (pm2) | 
 1 pm2 | 
  | 
| 10−20 | 
1 square angstrom (Å2) | 
 10,000 pm2 | 
  | 
| 10−19 | 
 | 
100,000 pm2 | 
Area of a lipid bilayer, per molecule[6] | 
 | 
75-260,000 pm2 | 
Surface area of the 20 standard amino acids[7] | 
| 10−18 | 
1 square nanometre (nm2) | 
 1 nm2 | 
  | 
| 10−16 | 
 | 
100 nm2 | 
Globular proteins:  solvent-accessible surface area of a typical globular protein, having a typical molecular mass of ~35000 u (quite variable)[8] | 
| 10−14 | 
 | 
17,000 nm2 | 
Cross-sectional area of a nuclear pore complex in vertebrates[9] | 
| 10−12 | 
1 square micrometre (μm2) | 
6 μm2 | 
Surface area of an E. coli bacterium[10] | 
| 10−10 | 
  | 
100 μm2 | 
Surface area of a red blood cell[11] | 
| 10−9 | 
  | 
6,000 μm2 - 110,000 μm2 | 
Range of common LCD screen pixel sizes[12] | 
|   | 
7,000 μm2 | 
Area of a dot printed using 300 dots per inch resolution[13] | 
|   | 
8,000 μm2 | 
Cross-sectional area of a straight human hair that is 100 μm[14] in diameter[15] | 
10−8 to 10−1 square metres
List of orders of magnitude for areas 10−8 to 10−1 square metres
| Factor (m2) | 
Multiple | 
Value | 
Item | 
| 10−8 | 
  | 
55,000 μm2 | 
Size of a pixel on a typical modern computer display | 
| 10−7 | 
  | 
2-400,000 μm2 | 
Cross-sectional area of a mechanical pencil lead (0.5-0.7 mm in diameter)[16] | 
| 10−6 | 
1 square millimetre (mm2) | 
1–2 mm2 | 
Area of a human fovea[17] | 
| 2 mm2 | 
Area of the head of a pin | 
| 10−5 | 
  | 
30–50 mm2 | 
Area of a 6–8 mm hole punched in a piece of paper by a hole punch[18] | 
| 10−4 | 
1 square centimetre (cm2) | 
290 mm2 | 
Area of one side of a U.S. penny[19][20] | 
| 500 mm2 | 
Area of a typical postage stamp | 
| 10−3 | 
   | 
1,100 mm2 | 
Area of a human retina[21] | 
| 4,600 mm2 | 
Area of the face of a credit card[22] | 
| 4,800 mm2 | 
Largest side of a cigarette box | 
| 10−2 | 
 1 square decimetre (dm2) | 
10,000 mm2  |  Index card (3 × 5 inches)[23] | 
| 60,000 mm2  |  American letter paper (11 × 8.5 inches, "A" size) | 
| 62,370 mm2  |  International A4 paper (210 × 297 mm) | 
| 93,000 mm2  |  1 square foot[24] | 
| 10−1 | 
   | 
 125,000 mm2  |  International A3 paper (297 × 420 mm) | 
|  180,000 mm2  |  Surface area of a basketball (diameter 24 cm)[25][26] | 
| 250,000 mm2  |  International A2 paper (420 × 594 mm) | 
| 500,000 mm2  |  International A1 paper (594 × 841 mm) | 
100 to 107 square metres
List of orders of magnitude for areas 100 to 107 square metres.
| Factor (m2) | 
Multiple | 
Value | 
Item | 
| 100 | 
 1 square metre | 
1 m2  |  International A0 paper (841 × 1189 mm) | 
| 1.73 m2  |  A number commonly used as the average body surface area of a human[27] | 
| 2–4 m2  |  Area of the top of an office desk | 
| 101 | 
  | 
10–20 m2 | 
A parking space | 
| 70 m2 | 
Approximate surface area of a human lung[28] | 
| 102 | 
1 square decametre (dam2) | 
100 m2 | 
One are (a) | 
| 162 m2 | 
Size of a volleyball court (18 × 9 metres)[29] | 
| 202 m2 | 
Floor area of a median suburban three-bedroom house in the US in 2010:  2,169 sq ft (201.5 m2)[30] | 
| 261 m2 | 
Size of a tennis court[31] | 
|  103 | 
   | 
1,000 m2  |  Surface area of a Greek Stremma | 
| 1,250 m2  |  Surface area of the water in an Olympic-size swimming pool[32] | 
| 4,047 m2  |  1 acre[33] | 
| 5,400 m2  |  Size of an American football field[34][35] | 
| 7,140 m2  |  Size of a typical football (soccer) field[36][37] | 
| 104 | 
 1 square hectometre (hm2) | 
10,000 m2  |  1 hectare (ha)[38] | 
| 17,000 m2  |  Approximate area of a cricket field (theoretical limits: 6,402 m2 to 21,273 m2)[39] | 
| 22,074 m2  |  Area of a Manhattan city block | 
| 53,000 m2  |  Base of the Great Pyramid of Giza[40][41] | 
| 105 | 
   | 
190,000 m2  |  Irish National Botanic Gardens | 
| 440,000 m2  |  Vatican City[42] | 
| 600,000 m2  |  Total floor area of the Pentagon[43] | 
| 106 | 
 1 square kilometre (km2) | 
2 km2  |  Monaco (country ranked 192nd by area)[44] | 
| 2.59 km2  |  1 square mile[45] | 
| 2.9 km2  |  City of London (not all of modern London)[46] | 
| 107 | 
   | 
59.5 km2  |  Manhattan Island (land area)[47] | 
| 61 km2  |  San Marino[48] | 
108 to 1014 square metres
| Factor (m2) | 
Multiple | 
Value | 
Item | 
| 108 | 
   | 
105 km2  |  Paris (inner city only)[49] | 
| 110 km2  |  Walt Disney World[50] | 
| 272 km2  |  Taipei City[51] | 
| 630 km2  |  Toronto[52] | 
| 109 | 
   | 
1100 km2  |  Hong Kong[53] | 
| 1290 km2  |  Los Angeles, California, United States (city)[54] | 
| 1962 km2  |  Jacksonville, Florida; largest city in the Continental US[55] | 
| 2188 km2  |  Tokyo[56] | 
| 5780 km2  |  Administrative area of Bali[57] | 
| 8030 km2  |  Community of Madrid, Spain | 
| 1010 | 
   | 
11,000 km2  |  Jamaica[58] | 
| 68,870 km2  |  Lake Victoria[59] | 
| 84,000 km2  |  Austria[60] | 
| 1011 | 
   | 
100,000 km2  |  South Korea[61] | 
| 167,996 km2  |  Jiuquan in China | 
| 300,000 km2  |  Philippines[62] | 
| 357,000 km2  |  Germany[63] | 
| 377,900 km2  |  Japan[64] | 
| 510,000 km2  |  Spain[65] | 
| 780,000 km2  |  Turkey[66] | 
| 1012 | 
 1 square megametre (Mm2) | 
1.0 Mm2  |  Egypt (country ranked 29th by area)[67] | 
| 1.7 Mm2 | 
The state of Alaska, the largest state in the United States | 
| 3.10 Mm2  |  Sakha (Yakutia) Republic in Russia (largest subnational governing body)[68] | 
| 5 Mm2  |  Largest extent of the Roman Empire[69][70] | 
| 7.74 Mm2  |  Australia (country ranked 6th by area)[71] | 
| 8.5 Mm2  |  Brazil | 
| 9.5 Mm2 | 
China/ United States of America | 
| 1013 | 
   | 
10 Mm2  |  Canada (including water)[72] | 
| 14 Mm2  |  Antarctica[73] | 
| 14 Mm2  |  Arable land worldwide[74] | 
| 16.6 Mm2  |  Surface area of Pluto[75] | 
| 17 Mm2  |  Russia (country ranked 1st by area)[76] | 
| 30 Mm2  |  Africa[77] | 
| 35.5 Mm2  |  Largest extent of the British Empire[78] | 
| 38 Mm2  |  Surface area of the Moon[79] | 
| 77 Mm2  |  Atlantic Ocean[80] | 
| 1014 | 
   | 
144 Mm2  |  Surface area of Mars[81] | 
| 150 Mm2  |  Land area of Earth[82] | 
| 156 Mm2  |  Pacific Ocean[83] | 
| 360 Mm2  |  Water area of Earth[82] | 
| 510 Mm2  |  Total surface area of Earth[82] | 
1015 to 1026 square metres
List of orders of magnitude for areas 1015 to 1026 square metres.
| Factor (m2) | 
Multiple | 
Value | 
Item | 
| 1015 | 
  | 
1,000 Mm2  |  Surface area of the white dwarf, Van Maanen's star | 
| 7,600 Mm2  |  Neptune[84] | 
| 1016 | 
   | 
43,000 Mm2  |  Saturn[85] | 
| 61 000 Mm2  |  Jupiter,[86] the "surface" area of the spheroid (calculated from the mean radius as reported by NASA). The cross-sectional area of Jupiter, which is the same as the "circle" of Jupiter seen by an approaching spacecraft, is almost exactly one quarter the surface-area of the overall sphere, which in the case of Jupiter is approximately 1.535e+16 square meters. | 
| 1017 | 
   | 
2-600 000 Mm2  |  Surface area of the brown dwarf CT Chamaeleontis B. | 
| 460,000 Mm2  |  Area swept by the Moon's orbit of Earth | 
| 1018 | 
1 square gigametre (Gm2) | 
6.1 Gm2  |  Surface area of the Sun[87] | 
| 1019 | 
  | 
30 Gm2  |  Surface area of the star Vega | 
| 1020 | 
  | 
 100 Gm2 | 
  | 
| 1021 | 
 | 
1 000 Gm2 | 
 | 
| 1022 | 
   | 
11 000 Gm2  |  Area swept by Mercury's orbit around the Sun | 
| 37 000 Gm2  |  Area swept by Venus' orbit around the Sun | 
| 71 000 Gm2  |  Area swept by Earth's orbit around the Sun | 
| 1023 | 
   | 
160 000 Gm2  |  Area swept by Mars' orbit around the Sun | 
| 281 000 Gm2  |  Surface area of a Dyson sphere with a radius of 1 AU | 
| 1024 | 
 1 square terametre (Tm2) | 
1.9 Tm2  |  Area swept by Jupiter's orbit around the Sun | 
| 6.4 Tm2  |  Area swept by Saturn's orbit around the Sun | 
| 8.5 Tm2  |  Surface area of the red supergiant star Betelgeuse | 
| 1025 | 
   | 
24 Tm2  |  Surface area of the hypergiant star VY Canis Majoris | 
| 26 Tm2  |  Area swept by Uranus' orbit around the Sun | 
| 64 Tm2  |  Area swept by Neptune's orbit around the Sun | 
| 1026 | 
  | 
110 Tm2  |  Area swept by Pluto's orbit around the Sun | 
1027 square metres and larger
List of orders of magnitude for areas 1027 square metres and larger.
| Factor (m2) | 
Multiple | 
Value | 
Item | 
| 1030 | 
1 square petametre (Pm2) | 
 | 
 | 
| 1031 | 
 | 
10 Pm2 | 
 | 
| 1032 | 
 | 
200 Pm2 | 
Roughly the surface area of an Oort Cloud | 
 | 
300 Pm2 | 
Roughly the surface area of a Bok globule | 
| 1033 | 
 | 
1 000 Pm2 | 
 | 
| 1034 | 
 | 
30 000 Pm2 | 
Roughly the surface area of The Bubble | 
| 1035 | 
 | 
100 000 Pm2 | 
 | 
| 1036 | 
1 square exametre (Em2) | 
 | 
 | 
| ... | 
| 1041 | 
 | 
700 000 Em2 | 
Roughly the area of Milky Way's galactic disk | 
| 1042 | 
1 square zettametre (Zm2) | 
 | 
 | 
| ... | 
| 1048 | 
1 square yottametre (Ym2) | 
 | 
 | 
| 1054 | 
 | 
2400 Ym2 | 
Surface area of the observable universe[88] | 
References
- ↑  Calculated:  square of the Planck length = (1.62e-35 m)^2 = 2.6e-70 m^2
 - ↑  Russ Rowlett (September 1, 2004). "Units: S". How Many? A Dictionary of Units of Measurement. University of North Carolina at Chapel Hill. Retrieved 2011-10-25. 
 - ↑  "Femtobarn". CERN writing guidelines. CERN. Retrieved 2015-10-22. 
 - ↑  Eric W. Weisstein. "Thomson Cross Section". Eric Weisstein's World of Science. Wolfram Research. Retrieved 2015-10-22. 
 - ↑  "Other non-SI units". SI brochure. BIPM. Archived from the original on 2008-08-21. Retrieved 2011-10-25. 
 - ↑  ""Rule of thumb" for the area per molecule in lipid bilayer". BioNumbers. Retrieved 2011-10-09. 
 - ↑  "Individual Properties of the 20 Standard Amino Acids:  Properties and Images". The Amino Acid Repository. Jena Library of Biological Macromolecules. Retrieved 2011-10-10. 
 - ↑  Janin, J. E. L. (1979). "Surface and inside volumes in globular proteins". Nature. 277 (5696): 491–492. doi:10.1038/277491a0. PMID 763335. 
 - ↑  "The Nuclear Pore Complex". UIUC Theoretical and Computational Biophysics Group. Retrieved 2011-10-14. 
 - ↑  "E. coli Statistics". The CyberCell Database. Retrieved 2011-09-11. 
 - ↑  Marcelli, Gianluca; Parker, Kim H.; Winlove, C. Peter (2005). "Thermal Fluctuations of Red Blood Cell Membrane via a Constant-Area Particle-Dynamics Model". Biophysical Journal. 89 (4): 2473–2480. Bibcode:2005BpJ....89.2473M. doi:10.1529/biophysj.104.056168. Retrieved 2011-09-27. 
 - ↑  Calculated:  Smallest and largest common pitches were 77 micrometers and 337 micrometers.  (77e-6 m)^2 ~= 6e-9 m^2.  (337e-6 m)^2 ~= 114e-9 m^2 ~= 110e-9 m^2
 - ↑  Calculated:  (300 dots per inch / 2.54e-2 m/inch)^(-2) = 7.2e-9 m^2
 - ↑  "Hair Fiber Composition". Retrieved 2011-09-30. 
 - ↑  Calculated:  100 μm in diameter => pi * ((1e-4 m)/2)**2 = 7.9e-9 m^2
 - ↑  Calculated:  pi * (0.5mm/2)^2 = 2.0e-7 m^2  and pi * (0.7mm/2)^2 = 3.8e-7 m^2)
 - ↑  "Part XIII: Facts and Figures concerning the human retina". Webvision. University of Utah. Retrieved 2011-09-28. 
 - ↑  Calculated:  ((6e-3 m)/2)**2 * pi = 2.8e-5 m^2  and  ((8e-3 m)/2)**2 * pi = 5.0e-5 m^2
 - ↑  "Coin specifications". United States Mint. Retrieved 2011-12-28. 
 - ↑  Calculated:  area = pi * diameter^2 / 4 = 3.14 * (19.05e-3 m)^2 = 2.850e-4 m^2
 - ↑  Taylor, Enid; Jennings, Alan (1971). "Calculation of total retinal area". Brit. J. Ophthal. 55 (4): 262–5. PMC 1208280
. PMID 5572268.  - ↑  "Credit Card Dimensions". Retrieved 2011-09-30. 
 - ↑  Calculated:  3 inches * 5 inches * (2.54e-2 m/inch)^2 = 9.7e-3 m^2 ~= 0.01 m^2
 - ↑  Calculated:  1 foot * 1 foot * (0.3048 meters / foot)^2 = 0.093 m^2
 - ↑  "Rules of the Game". USA Basketball. Archived from the original on 2011-10-27. Retrieved 2011-10-28. 
 - ↑  Calculated:  29.5-29.75 inch circumference * 2.54 cm / in = 23.85-24.05 cm diameter => radius = 0.119-0.120 m => Area = 4 * pi * (0.119 m)^2 = 0.18 m^2
 - ↑  Sacco, Joseph J.; Botten, Joanne; Macbeth, Fergus; Bagust, Adrian; Clark, Peter (2010). "The Average Body Surface Area of Adult Cancer Patients in the UK: A Multicentre Retrospective Study". PLoS ONE. 5 (1): e8933. Bibcode:2010PLoSO...5.8933S. doi:10.1371/journal.pone.0008933. PMC 2812484
. PMID 20126669. Retrieved 2011-09-27.  - ↑  Notter, Robert H. (2000). Lung surfactants: basic science and clinical applications. New York, N.Y: Marcel Dekker. p. 120. ISBN 0-8247-0401-0. Retrieved 2011-09-27. 
 - ↑  "Section 1.1". Official Volleyball Rules 2011-2012 (PDF). FIVB. 2010. Retrieved 2011-10-27. 
The playing court is a rectangle measuring 18 x 9 m, surrounded by a free zone which is a minimum of 3 m wide on all sides.
  - ↑  "Median and Average Square Feet of Floor Area in New Single-Family Houses Completed by Location" (PDF). US Census Bureau. Retrieved 2011-09-26. 
 - ↑  "Area of a Tennis Court". The Physics Factbook. Retrieved 2011-09-27. 
 - ↑  Calculated: 50 m * 25 m = 1250 m^2
 - ↑  "General Tables of Units of Measurement" (PDF). NIST. Archived from the original (PDF) on 2006-11-26. Retrieved 2011-10-28. 
4046.87
  - ↑  "What are the Dimensions of a Football Field". Dimensions Guide. Retrieved 2011-10-27. 
 - ↑  Calculated:  360 feet * 160 feet * (0.3048 m/ft)^2 = 5351 m^2 ~= 5400 m^2
 - ↑  "How Big Is An Olympic Soccer Field?". LIVESTRONG.COM. Retrieved 2012-01-04. 
For the Olympics, fields are supposed to measure exactly 105 meters long and 68 meters wide
  - ↑  Calculated:  105 m * 68 m = 7140 m^2
 - ↑  "General Tables of Units of Measurement" (PDF). NIST. Archived from the original (PDF) on 2006-11-26. Retrieved 2011-10-28. 
 - ↑  "AFL Ground Sizes | Passy's World of Mathematics". passyworldofmathematics.com. Retrieved 2016-11-12. 
 - ↑  Greenberg, Ralph. "THE  GREAT PYRAMID OF GIZA (Some Elegant Numerical Relationships)". Retrieved 2012-01-04. 
average length of the four sides is 230.364 meters
  - ↑  Calculated:  230.364 m^2 ~= 53068 m^2
 - ↑  "Holy See (Vatican City)". The World Factbook. Central Intelligence Agency. Retrieved 2011-10-28. 
 - ↑  "The Pentagon - George Bergstrom". Great Buildings Online. Retrieved 2011-10-28. 
Floor area of 6.5 million square feet, 34 acres, 13.8 hectares, of which 3.7 million square feet are used for offices.
  - ↑  "Monaco". The World Factbook. Central Intelligence Agency. Retrieved 2011-09-30. 
 - ↑  Calculated:  1 mile * 1 mile * (1.61 km / mile)^2 = 2.59 km^2
 - ↑  "Jurisdictions: London". The International Finance Centre Portal. Retrieved 2011-10-28. 
 - ↑  "New York -- Place and County Subdivision: Population, Housing Units, Area, and Density 2000". Census 2000 Summary File 1. US Census Bureau. Retrieved 2011-10-28. 
 - ↑  "San Marino". The World Factbook. Central Intelligence Agency. Retrieved 2011-09-30. 
 - ↑  "Paris" (PDF). INSEE. Retrieved 2011-10-28. 
 - ↑  "Walt Disney World Resort". Disney By The Numb3rs. Retrieved 2011-10-28. 
30,500 acres
  - ↑  "Appendix II Statistics". Taipei Yearbook 2010. Retrieved 2011-10-28. 
 - ↑  "Population and Dwelling Counts". 2001 Census. Statistics Canada. Retrieved 2011-10-28. 
 - ↑  "Hong Kong". The World Factbook. Central Intelligence Agency. Retrieved 2011-09-29. 
 - ↑  "California by Place:  Los Angeles city". US Census. Retrieved 2011-10-28. 
498.29 square miles
  - ↑  "Cities with 100,000 or More Population in 2000 ranked by Land Area (square miles) /1, 2000 in Rank Order". U.S. Census Bureau, Administrative and Customer Services Division, Statistical Compendia Branch. March 16, 2004. Retrieved 2010-10-26. 
 - ↑  "OVERVIEW OF TOKYO". Tokyo Metropolitan Government. Retrieved 2011-10-28. 
 - ↑  http://sp2010.bps.go.id/files/ebook/5105.pdf
 - ↑  "Jamaica". The World Factbook. Central Intelligence Agency. Retrieved 2011-09-29. 
 - ↑  "Lake Profile:  Victoria". World Lakes. LakeNet. Retrieved 2011-10-28. 
 - ↑  "Austria". The World Factbook. Central Intelligence Agency. Retrieved 2011-09-29. 
 - ↑  "South Korea". The World Factbook. Central Intelligence Agency. Retrieved 2011-09-29. 
 - ↑  "Italy". The World Factbook. Central Intelligence Agency. Retrieved 2011-09-29. 
 - ↑  "Germany". The World Factbook. Central Intelligence Agency. Retrieved 2011-09-29. 
 - ↑  "Japan". The World Factbook. Central Intelligence Agency. Retrieved 2011-09-29. 
 - ↑  "Spain". The World Factbook. Central Intelligence Agency. Retrieved 2011-09-29. 
 - ↑  "Turkey". The World Factbook. Central Intelligence Agency. Retrieved 2011-09-29. 
 - ↑  "Egypt". The World Factbook. Central Intelligence Agency. Retrieved 2011-09-29. 
 - ↑  Rosstat (Russian Statistical Service), 2010 (xls). Retrieved 2012-06-15.
 - ↑  Turchin, Peter; Adams, Jonathan M.; Hall, Thomas D (December 2006). "East-West Orientation of Historical Empires". Journal of world-systems research. 12 (2): 222. ISSN 1076-156X. Retrieved 2016-09-16. 
 - ↑  Taagepera, Rein (1979). "Size and Duration of Empires: Growth-Decline Curves, 600 B.C. to 600 A.D.". Social Science History. 3 (3/4): 125. doi:10.2307/1170959. JSTOR 1170959. 
 - ↑  "Australia". The World Factbook. Central Intelligence Agency. Retrieved 2011-10-28. 
 - ↑  "Canada". The World Factbook. Central Intelligence Agency. Retrieved 2011-09-29. 
 - ↑  "Antarctica". The World Factbook. Central Intelligence Agency. Retrieved 2011-10-28. 
 - ↑  "FAO Resources page". FAO.org. 2010. 
 - ↑  "Pluto: By the Numbers". Solar System Exploration. NASA. Retrieved 2015-12-11. 
 - ↑  "Russia". The World Factbook. Central Intelligence Agency. Retrieved 2011-09-29. 
 - ↑  "Map of Africa". Worldatlas.com. Retrieved 2012-01-04. 
30,065,000 sq km
  - ↑  Rein Taagepera (September 1997). "Expansion and Contraction Patterns of Large Polities: Context for Russia". International Studies Quarterly. 41 (3): 502. doi:10.1111/0020-8833.00053. JSTOR 2600793. 
 - ↑  "Earth's Moon: Facts & Figures". Solar System Exploration. NASA. Retrieved 2011-09-29. 
 - ↑  "The World Factbook:  Atlantic Ocean". Central Intelligence Agency. 2011-03-24. Retrieved 2011-09-30. 
 - ↑  "Mars: Facts & Figures". Solar System Exploration. NASA. Retrieved 2011-09-29. 
 - 1 2 3  "The World Factbook:  World". Central Intelligence Agency. 2011-08-31. Retrieved 2011-09-27. 
 - ↑  "The World Factbook:  Pacific Ocean". Central Intelligence Agency. 2011-11-17. Retrieved 2011-09-30. 
 - ↑  "Neptune: Facts & Figures". Solar System Exploration. NASA. Retrieved 2011-09-29. 
 - ↑  "Saturn: Facts & Figures". Solar System Exploration. NASA. Retrieved 2011-09-29. 
 - ↑  "Jupiter: Facts & Figures". Solar System Exploration. NASA. Retrieved 2011-09-29. 
 - ↑  "Sun: Facts & Figures". Solar System Exploration. NASA. Retrieved 2011-09-29. 
 - ↑  "Wolfram|Alpha: Computational Knowledge Engine". www.wolframalpha.com. Retrieved 2016-03-01. 
 
 
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