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Encyclopedia > Orders of magnitude (mass)
Orders of magnitude
area
angular velocity
currency
data
density
energy
frequency
length
mass
numbers
power
pressure
specific heat capacity
speed
temperature
time
torque
volume
Conversion of units
physical unit
SI
SI base unit
SI derived unit
SI prefix
Planck units

To help compare different orders of magnitude, the following list describes various mass levels between 10−36 kg and 1053 kg. An order of magnitude is the class of scale or magnitude of any amount, where each class contains values of a fixed ratio to the class preceding it. ... Categories: Orders of magnitude (area) ... To help compare different orders of magnitude, the following list describes various angular velocity levels between 1×10−7 rad·s−1 and 1×107 rad·s−1. ... This is a list of orders of magnitude for data (or information), measured in bits. ... Conversion Calculator for Units of Density Category: ... To help compare different orders of magnitude, the following list describes various frequencies. ... Categories: | ... This list compares various sizes of positive numbers, including counts of things, dimensionless numbers and probabilities. ... This page lists examples of the power in watts produced by various different sources of energy. ... 1 At earth mean sea level. ... This is a table of specific heat capacities by magnitude. ... To help compare different orders of magnitude, the following list describes various speed levels between 1. ... Circumstances where water naturally occurs in liquid form are shown in light grey. ... The pages linked in the right-hand column contain lists of times that are of the same order of magnitude (power of ten). ... The pages linked in the right-hand column contain lists of volumes that are of the same order of magnitude (power of ten). ... Conversion of units refers to conversion factors between different units of measurement for the same quantity. ... The definition, agreement and practical use of units of measurement have played a crucial role in human endeavour from early ages up to this day. ... Look up si, Si, SI in Wiktionary, the free dictionary. ... The SI system of units defines seven SI base units: physical units defined by an operational definition. ... SI derived units are part of the SI system of measurement units and are derived from the seven SI base units. ... An SI prefix (also known as a metric prefix) is a name or associated symbol that precedes a unit of measure (or its symbol) to form a decimal multiple or submultiple. ... In physics, Planck units are physical units of measurement defined exclusively in terms of the five universal physical constants shown in the table below in such a manner that all of these physical constants take on the numerical value of one when expressed in terms of these units. ... An order of magnitude is the class of scale or magnitude of any amount, where each class contains values of a fixed ratio to the class preceding it. ... This article or section is in need of attention from an expert on the subject. ... The kilogram or kilogramme (symbol: kg) is the SI base unit of mass. ...

Factor (kg) Value Item
10−36 1.783×10−36 kg One eV/c², the mass equivalent of one electronvolt of energy.
3.6×10−36 kg Electron neutrino, upper limit on mass (2 eV/c²)
10−35    
10−34    
10−33    
10−32    
10−31 9.1×10−31 kg Electron (511 keV/c²), the lightest elementary particle with a measured nonzero rest mass.
10−30    
10−29    
10−28 1.9×10−28 kg Muon (106 MeV/c²)
10−27
yoctogram (yg)		 1.661×10−27 kg Atomic mass unit (u) or dalton (Da)
1.673×10−27 kg Proton (938.3 MeV/c²)
1.674×10−27 kg Hydrogen atom, the lightest atom
1.675×10−27 kg Neutron (939.6 MeV/c²)
10−26 1.15×10−26 kg Lithium atom (6.941 u)
2.99×10−26 kg Water molecule (18.015 u)
7.95×10−26 kg Titanium atom (47.867 u)
10−25 1.79×10−25 kg Silver atom (107.8682 u)
1.6×10−25 kg Z boson (91.2 GeV/c²)
3.1×10−25 kg Top quark (173 GeV/c²), the heaviest known elementary particle
3.2×10−25 kg Caffeine molecule (194 u)
3.45×10−25 kg Lead-208 atom, the heaviest stable isotope known
10−24
zeptogram (zg)		    
10−23    
10−22 1.1×10−22 kg Haemoglobin A molecule in blood
10−21
attogram (ag)		    
10−20 10−20 kg A small virus
10−19    
10−18
femtogram (fg)		    
10−17 1.1×10−17 kg Mass equivalent of one joule
4.6×10−17 kg Mass equivalent of a calorie
10−16 7×10−16 kg Escherichia coli (E. coli) bacterium
10−15
picogram (pg)		    
10−14    
10−13    
10−12
nanogram (ng)		 10−12 kg Average human cell (1 nanogram)
10−11    
10−10 3.5×10−10 kg Small grain of sand (0.063 mm diameter, 350 nanograms)
10−9
microgram (µg)		 2×10−9 kg Uncertainty in the mass of the prototype kilogram (2 micrograms)
10−8 2.2×10−8 kg Planck mass
10−7    
10−6
milligram (mg)		 1–2×10−6 kg Typical mass of a mosquito (1–2 milligrams)
10−5
centigram (cg)		 1.1×10−5 kg Large grain of sand (2 mm diameter, 11 milligrams)
10−4
decigram (dg)		 1.5×10−4 kg Typical amount of caffeine in one cup of coffee (150 milligrams)
2×10−4 kg Metric carat (200 milligrams)
10−3
gram (g)		 10−3 kg One cubic centimeter of water (1 gram)
8×10−3 kg Typical coins: euro (7.5 grams) and U.S. dollar (8.1 grams)
10−2
decagram (dag)		 1.2–4×10−2 kg Adult mouse (Mus musculus, 12–40 grams)
2.4×10−2 kg Amount of ethanol in one drink (24 grams)
2.8×10−2 kg Ounce (avoirdupois) (28.35 grams)
10−1
hectogram   (hg)		 0.15 kg Human kidney (150 grams)
0.454 kg Pound (avoirdupois) (454 grams)
Factor (kg) Value Item
1 kg
kilogram (kg)		 1 kg One litre of water, approx.
3 kg Newborn human baby
4.0 kg Women's shotput
5–7 kg Housecat
7.26 kg Men's shotput
101 10–30 kg A CRT computer monitor or television set
15–20 kg Medium-sized dog
70 kg Adult human; large dog
102 180–250 kg Mature lion, female (180 kg) and male (250 kg)
700 kg Dairy cow
907.18474 kg 1 short ton (2000 pounds - U.S.)
103
megagram (Mg)		 1000 kg Metric ton/tonne; one cubic metre of water
1016.0469088 kg Ton (British) / 1 long ton (2240 pounds - U.S.)
800–1600 kg Typical passenger automobiles
3000–7000 kg Adult elephant
104 1.1×104 kg Hubble Space Telescope (11 tonnes)
1.2×104 kg Largest elephant on record (12 tonnes)
1.4×104 kg Big Ben (Bell) (14 tonnes)
6.0×104 kg Largest Meteorite, Hoba West Meteorite (60 tonnes)
8–10×104 kg Largest known dinosaur, the Argentinosaurus (80–100 tonnes)
105 1.8x105 kg Largest animal, the blue whale (180 tonnes)
1.87×105 kg International Space Station (187 tonnes)
6×105 kg Antonov An-225 (the world's heaviest aircraft) maximum take-off mass (600 tonnes); payload: 250 tonnes
106
gigagram (Gg)		 1.25×106 kg Trunk of the Giant Sequoia tree named General Sherman (1250 tonnes)
1.5×106 kg Individual gate of the Thames Barrier
2.041×106 kg Launch mass of the Space Shuttle (2041 tonnes)
6×106 kg Largest clonal colony, the quaking aspen named Pando (6000 tonnes)
107 1.1×107 kg Annual production of Darjeeling tea (11,000 tonnes)
2.6×107 kg RMS Titanic (26,000 tonnes)
9.97×107 kg Heaviest train ever (99,700 tonnes): Australia's BHP Iron Ore, 2001 record
108 6.5×108 kg Largest ship, Knock Nevis, when fully loaded (650,000 tonnes)
109
teragram (Tg)		 4.3×109 kg Amount of matter converted into energy by the Sun each second
6×109 kg Great Pyramid of Giza
1010
 6×1010 kg Amount of concrete in the Three Gorges Dam, the world's largest concrete structure
1011 2×1011 kg Amount of water stored in London storage reservoirs (0.2 km³)
3×1011 kg Total mass of the human world population
1–8×1011 kg Total biomass of Antarctic krill, Euphausia superba, thought to be the most plentiful creature on the planet
1012
petagram (Pg)		 3.91×1012 kg World oil production in 2001
1013    
1014 2–3×1014 kg Amount of rock that exploded in the Mount Tambora volcanic eruption in 1815
1015
exagram (Eg)		 1×1015 kg Estimated total world coal reserves economically accessible using current mining technology
1016 1×1016 kg 951 Gaspra, the first asteroid ever to be closely approached by a spacecraft
1017 1.6×1017 kg Prometheus (moon), a shepherd satellite for the inner edge of Saturn's F Ring.
1018
zettagram (Zg)		 5×1018 kg Earth's atmosphere
5.7×1018 kg Hyperion, a moon of Saturn
1019 3×1019 kg 3 Juno, the fifth largest asteroid in the main Asteroid Belt
1020 8.7×1020 kg Ceres, the largest asteroid in the main Asteroid Belt (now officially a dwarf planet)
1021
yottagram (Yg)		 1.35×1021 kg Earth's oceans
1.6×1021 kg Charon, the moon of Pluto
2.3×1021 kg Total mass of the Asteroid Belt
1022 1.3×1022 kg Pluto
1.5×1022 kg Triton, largest moon of Neptune
7.35×1022 kg Earth's Moon
1023 1.3×1023 kg Titan, largest moon of Saturn
1.5×1023 kg Ganymede, largest moon of Jupiter
3.2×1023 kg Mercury
6.4×1023 kg Mars
1024 4.9×1024 kg Venus
6.0×1024 kg The Earth
1025 3.0×1025 kg Lowest estimate of the mass of the Oort cloud
8.7×1025 kg Uranus
1026 1.0×1026 kg Neptune
5.7×1026 kg Saturn
6.0×1026 kg Highest estimate of the mass of the Oort cloud
1027 1.9×1027 kg Jupiter
1028 1–17×1028 kg Brown dwarf stars
1029 3.4×1029 kg Barnard's Star, a near red dwarf star
1030 2×1030 kg Sun; one solar mass
2.9×1030 kg Chandrasekhar limit (1.44 solar masses)
1031 4×1031 kg Betelgeuse, a red supergiant star
1032    
1033    
1034    
1035    
1036 7.4×1036 kg The supermassive black hole at the center of our Galaxy, associated with the radio source Sagittarius A*
1037    
1038   Typical mass of a globular cluster
1039    
1040    
1041 3.6×1041 kg Visible mass of the Milky Way galaxy
1042 2×1042 kg Total mass of the Milky Way galaxy
1043    
1044    
1045    
1046 2×1046 kg Virgo Supercluster
1047    
1048    
1049    
1050    
1051    
1052 3×1052 kg Mass of the observable universe

The kilogram or kilogramme (symbol: kg) is the SI base unit of mass. ... The electronvolt (symbol eV) is a unit of energy. ... The neutrino is an elementary particle. ... e- redirects here. ... The muon (from the letter mu (μ)--used to represent it) is an elementary particle with negative electric charge and a spin of 1/2. ... The prefix yocto- is used to multiply the coefficient 10^-24 to the value of a physical quantity, so 1 yoctogram equals 1 * 10^-24 grams. ... The unified atomic mass unit (u), or Dalton (Da), is a small unit of mass used to express atomic and molecular masses. ... In physics, the proton (Greek proton = first) is a subatomic particle with an electric charge of one positive fundamental unit (1. ... General Name, Symbol, Number hydrogen, H, 1 Chemical series nonmetals Group, Period, Block 1, 1, s Appearance colorless Atomic mass 1. ... This article or section does not adequately cite its references or sources. ... General Name, Symbol, Number lithium, Li, 3 Chemical series alkali metals Group, Period, Block 1, 2, s Appearance silvery white/grey Standard atomic weight 6. ... Impact from a water drop causes an upward rebound jet surrounded by circular capillary waves. ... 3D (left and center) and 2D (right) representations of the terpenoid molecule atisane. ... General Name, symbol, number titanium, Ti, 22 Chemical series transition metals Group, period, block 4, 4, d Appearance silvery metallic Standard atomic weight 47. ... General Name, Symbol, Number silver, Ag, 47 Chemical series transition metals Group, Period, Block 11, 5, d Appearance lustrous white metal Standard atomic weight 107. ... In physics, the W and Z bosons are the elementary particles that mediate the weak nuclear force. ... The top quark is the third-generation up-type quark with a charge of +(2/3)e. ... In particle physics, an elementary particle or fundamental particle is a particle not known to have substructure; that is, it is not made up of smaller particles. ... Caffeine is a xanthine alkaloid compound that acts as a stimulant in humans. ... For Pb as an abbreviation, see PB. General Name, Symbol, Number lead, Pb, 82 Chemical series Post-transition metals or poor metals Group, Period, Block 14, 6, p Appearance bluish gray Standard atomic weight 207. ... A zeptogram (symbol: Zg) is an SI unit of mass. ... Structure of hemoglobin. ... An attogram is a SI unit of mass. ... A common alternate meaning of virus is computer virus. ... The femtogram is an SI unit of mass (symbol fg) defined as: 1 fg = 1 × 10-18 kilogram ( = 1 × 10-15 gram) A femtogram is one quadrillionth (1/1000000000000000) of a gram. ... For a less technical and generally accessible introduction to the topic, see Introduction to special relativity. ... The joule (IPA pronunciation: or ) (symbol: J) is the SI unit of energy. ... A calorie is a unit of measurement for energy. ... E. coli redirects here. ... The picogram is an SI unit of mass (symbol pg) defined as: 1 pg = 1 × 10-15 kilogram (1 × 10-12 gram) A picogram is one trillionth (1/1000000000000) of a gram. ... The nanogram is an SI unit of mass (symbol ng) defined as: 1 ng = 1 × 10-12 kilogram (1 × 10-9 gram) A nanogram is one billionth (1/1,000,000,000) of a gram. ... Drawing of the structure of cork as it appeared under the microscope to Robert Hooke from Micrographia which is the origin of the word cell being used to describe the smallest unit of a living organism Cells in culture, stained for keratin (red) and DNA (green) The cell is the... Patterns in the sand Sand is a granular material made up of fine rock particles. ... The microgram (symbol µg, sometimes mcg) is an SI unit of mass. ... “Kg” redirects here. ... The Planck mass is the natural unit of mass, denoted by mP. It is the mass for which the Schwarzschild radius is equal to the Compton length divided by Ï€. ≈ 1. ... The milligram (symbol mg) is an SI unit of mass. ... Diversity 41 genera Genera See text. ... The centigram (symbol cg) is an SI unit of mass. ... Patterns in the sand Sand is a granular material made up of fine rock particles. ... The U.S. National Prototype Kilogram, which currently serves as the primary standard for measuring mass in the U.S. It was assigned to the United States in 1889 and is periodically recertified and traceable to the primary international standard, The Kilogram, held at the Bureau International des Poids et... Caffeine is a xanthine alkaloid compound that acts as a stimulant in humans. ... A cup of coffee. ... The carat is a unit of mass used for gems, and equals 200 milligrams or 3. ... BIC pen cap, about 1 gram. ... The millilitre is the equivalent of a cubic centimetre. ... Impact from a water drop causes an upward rebound jet surrounded by circular capillary waves. ... The euro (EUR or €) is the currency of 13 European Union (EU) member states (Austria, Belgium, Finland, France, Germany, Greece, Ireland, Italy, Luxembourg, Netherlands, Portugal, Slovenia, and Spain), three European microstates which have currency agreements with the EU (Monaco, San Marino and the Vatican City State), Andorra, Montenegro and the... ISO 4217 Code USD User(s) the United States, the British Indian Ocean Territory,[1] the British Virgin Islands, East Timor, Ecuador, El Salvador, the Marshall Islands, Micronesia, Palau, Panama, Caicos Islands, and the insular areas of the United States Inflation 2. ... The decagram (symbol dag, sometimes dcg) is an SI unit of mass. ... Binomial name Mus musculus Linnaeus, 1758 Mus musculus is the common house mouse. ... Ethanol, also known as ethyl alcohol, drinking alcohol or grain alcohol, is a flammable, colorless, slightly toxic chemical compound, and is best known as the alcohol found in alcoholic beverages. ... The ounce (abbreviation: oz) is the name of a unit of mass in a number of different systems, including various systems of mass that form part of English units, Imperial units, and United States customary units. ... The avoirdupois (IPA: ; French:) system is a system of weights (or, properly, mass) based on a pound of sixteen ounces. ... A Hectogram (symbol Hg) is a derived unit of measurement of mass in the SI. {Système International dUnités} Definition 1 Hectogram is equal to 100 grams: {1Hg = 100g} A Hectogram is the tenth (1/10) of a kilogram: {1Hg = 0. ... The kidneys are organs that filter wastes (such as urea) from the blood and excrete them, along with water, as urine. ... The pound (abbreviations: lb or, sometimes in the United States, #) is a unit of mass (called weight in everyday parlance) in a number of different systems, including English units, Imperial units, and United States customary units. ... The avoirdupois (IPA: ; French:) system is a system of weights (or, properly, mass) based on a pound of sixteen ounces. ... The kilogram or kilogramme (symbol: kg) is the SI base unit of mass. ... The kilogram or kilogramme (symbol: kg) is the SI base unit of mass. ... The litre or liter (see spelling differences) is a unit of volume. ... Impact from a water drop causes an upward rebound jet surrounded by circular capillary waves. ... The term baby can refer to: an infant a very early computer—the Small-Scale Experimental Machine, nicknamed Baby a musician – Brian Williams – who performs under the name Baby. ... Shot put The shot put is an athletics (track and field) event involving putting (throwing in a pushing motion) a heavy metal ball, also called the shot, as far as possible. ... Binomial name Felis catus Linnaeus, 1758 Synonyms Felis lybica invalid junior synonym The cat (or domestic cat, house cat) is a small carnivorous mammal. ... Shot put The shot put is an athletics (track and field) event involving putting (throwing in a pushing motion) a heavy metal ball, also called the shot, as far as possible. ... Cathode ray tube employing electromagnetic focus and deflection Cutaway rendering of a color CRT: 1. ... A computer display monitor, usually called simply a monitor, is a piece of electrical equipment which displays viewable images generated by a computer without producing a permanent record. ... Trinomial name Canis lupus familiaris The dog (Canis lupus familiaris) is a domestic subspecies of the wolf, a mammal of the Canidae family of the order Carnivora. ... For the adult insect stage, see Imago. ... This article is about modern humans. ... For other uses, see Lion (disambiguation). ... COW is an acronym for a number of things: Can of worms The COW programming language, an esoteric programming language. ... The short ton is a unit of mass equal to 907. ... A tonne (also called metric ton) is a non-SI unit of mass, accepted for use with SI, defined as: 1 tonne = 103 kg (= 106 g). ... A tonne or metric ton (symbol t), sometimes referred to as a metric tonne, is a measurement of mass equal to 1,000 kilograms. ... The cubic meter (symbol m³) is the SI derived unit of volume. ... Look up ton in Wiktionary, the free dictionary. ... A long ton is the name used in the US for the unit called the ton in the avoirdupois or Imperial system of measurements, as used (alongside the metric system) in the United Kingdom and to some extent in other Commonwealth countries. ... “Car” and “Cars” redirect here. ... Genera and Species Loxodonta Loxodonta cyclotis Loxodonta africana Elephas Elephas maximus Elephas antiquus † Elephas beyeri † Elephas celebensis † Elephas cypriotes † Elephas ekorensis † Elephas falconeri † Elephas iolensis † Elephas planifrons † Elephas platycephalus † Elephas recki † Stegodon † Mammuthus † Elephantidae (the elephants) is a family of pachyderm, and the only remaining family in the order Proboscidea... The Hubble Space Telescope (HST) is a telescope in orbit around the Earth, named after astronomer Edwin Hubble. ... Genera and Species Loxodonta Loxodonta cyclotis Loxodonta africana Elephas Elephas maximus Elephas antiquus † Elephas beyeri † Elephas celebensis † Elephas cypriotes † Elephas ekorensis † Elephas falconeri † Elephas iolensis † Elephas planifrons † Elephas platycephalus † Elephas recki † Stegodon † Mammuthus † Elephantidae (the elephants) is a family of pachyderm, and the only remaining family in the order Proboscidea... The Clock Tower, often mistakenly known as Big Ben (the nickname of the Great Bell housed within the Clock Tower) The Clock Tower is the worlds largest four-faced, chiming turret clock. ... Willamette Meteorite A meteorite is a natural object originating in outer space that survives an impact with the Earths surface without being destroyed. ... The Hoba meteorite. ... Binomial name Bonaparte & Coria, 1993 Argentinosaurus (meaning Argentina lizard) was a herbivorous sauropod dinosaur that was quite possibly the largest, heaviest land animal that ever lived. ... Binomial name (Linnaeus, 1758) Blue Whale range Subspecies B. m. ... “ISS” redirects here. ... The An-225 Mriya (Ukrainian: , NATO reporting name: Cossack) is a strategic airlift transport aircraft which was built by Antonov, and is the worlds largest flying airplane ever built by the most commonly accepted measure [1], maximum gross takeoff weight. ... The gigagram is an SI unit of mass, with symbol Gg. ... Binomial name (Lindl. ... General Sherman tree from Sequoia National Park General Sherman is the name of a Giant Sequoia. ... The Thames Barrier is a flood control structure on the River Thames, constructed between 1974 and 1984 at Woolwich Reach, London. ... NASAs Space Shuttle, officially called Space Transportation System (STS), is the United States governments current manned launch vehicle. ... Binomial name Populus tremuloides Michx. ... Pando (or The Trembling Giant[1]) is a clonal colony of a single male Quaking Aspen (Populus tremuloides) tree located in the U.S. state of Utah, all determined to be part of a single living organism by identical genetic markers,[2] and one massive underground root system. ... Darjeeling (Nepali: , Bangla: দার্জিলিং) is a town in the Indian state of West Bengal. ... Tea leaves in a Chinese gaiwan. ... RMS Titanic was a British Olympic class passenger liner that became famous for her collision with an iceberg on 14 April 1912 and dramatic sinking on 15 April 1912. ... The Knock Nevis is a Norwegian owned supertanker, formerly known as Seawise Giant, Happy Giant, and Jahre Viking. ... A teragram (symbol: Tg) is an SI unit of mass. ... The Sun (Latin: ) is the star at the center of the Solar System. ... The Great Pyramid of Giza is the oldest and largest of the three pyramids in the Giza Necropolis bordering what is now Cairo, Egypt in Africa, and is the only remaining member of the Seven Wonders of the World. ... This article is about the construction material. ... Relative position of the Three Gorges Dam . ... This article is about the capital of England and the United Kingdom. ... Binomial name Euphausia superba Dana, 1850 The Antarctic krill (Euphausia superba ) is a species of krill found in the Antarctic waters of the Southern Ocean. ... A petagram (symbol: Pg) is an SI unit of mass. ... Pumpjack pumping an oil well near Lubbock, Texas Ignacy Łukasiewicz - inventor of the refining of kerosene from crude oil. ... Year 2001 (MMI) was a common year starting on Monday (link displays the 2001 Gregorian calendar). ... Mount Tambora (or Tomboro) is an active stratovolcano on Sumbawa island, Indonesia. ... Some people know what a volcano looks like,but I bet you have never seenone eurpt before like me. ... April 5-12: Mount Tambora explodes, changing climate. ... An exagram (symbol: Eg) is an SI unit of mass. ... Coal Coal (IPA: ) is a fossil fuel formed in swamp ecosystems where plant remains were saved by water and mud from oxidization and biodegradation. ... Chuquicamata, the second largest open pit copper mine in the world, Chile. ... 951 Gaspra is an S-type asteroid that orbits very close to the inner edge of the asteroid belt. ... Prometheus (proe-mee-thee-us, Greek Προμηθέας) is a moon of Saturn. ... A zettagram (symbol: Zg) is an SI unit of mass. ... Layers of Atmosphere—not to scale (NOAA) [1] Earths atmosphere is a layer of gases surrounding the planet Earth and retained by the Earths gravity. ... Hyperion (IPA: , Greek Ὑπερίων) is a moon of Saturn discovered by William Cranch Bond, George Phillips Bond and William Lassell in 1848. ... Juno (IPA: ), designated 3 Juno in the Minor Planet Center catalogue system, was the third asteroid to be discovered and is one of the largest main belt asteroids, being the second heaviest of the stony S-type. ... For details on the physical properties of bodies in the asteroid belt see Asteroid and Main-belt comet. ... 1 Ceres (IPA , Latin: ) is a dwarf planet in the asteroid belt. ... Artists impression of Pluto (background) and Charon (foreground). ... A yottagram (symbol: Yg) is an SI unit of mass. ... Animated map exhibiting the worlds oceanic waters. ... Charon (shair-É™n or kair-É™n (key), IPA , Greek Χάρων), discovered in 1978, is, depending on the definition employed, either the largest moon of Pluto or one member of a double dwarf planet with Pluto being the other member. ... For details on the physical properties of bodies in the asteroid belt see Asteroid and Main-belt comet. ... Atmospheric characteristics Atmospheric pressure 0. ... Triton (trye-tÉ™n, IPA: , Greek Τρίτων), or Neptune I, is the planet Neptunes largest moon. ... This article is about Earths moon. ... Titan (, from Ancient Greek Τῑτάν) or Saturn VI is the largest moon of Saturn and the only moon known to have a dense atmosphere. ... This article or section does not adequately cite its references or sources. ... This article is about the planet. ... Mars is the fourth planet from the Sun in the solar system, named after the Roman god of war (the counterpart of the Greek Ares), on account of its blood red color as viewed in the night sky. ... (*min temperature refers to cloud tops only) Atmospheric characteristics Atmospheric pressure 9. ... This article is about Earth as a planet. ... This image is an artists rendering of the Oort cloud and the Kuiper Belt. ... Atmospheric characteristics Atmospheric pressure 120 kPa Hydrogen 83% Helium 15% Methane 1. ... Atmospheric characteristics Surface pressure ≫100 MPa Hydrogen - H2 80% ±3. ... Atmospheric characteristics Atmospheric pressure 140 kPa Hydrogen >93% Helium >5% Methane 0. ... This image is an artists rendering of the Oort cloud and the Kuiper Belt. ... Atmospheric characteristics Atmospheric pressure 70 kPa Hydrogen ~86% Helium ~14% Methane 0. ... This brown dwarf (smaller object) orbits the star Gliese 229, which is located in the constellation Lepus about 19 light years from Earth. ... Barnards Star is a very low-mass star in the constellation Ophiuchus which was discovered by the astronomer E. E. Barnard in 1916. ... Red Dwarf is a British science fiction comedy franchise, the primary form of which comprises eight series of a post-watershed television sitcom that ran on BBC2 between 1988 and 1999, and which has achieved a global cult following. ... The Sun (Latin: ) is the star at the center of the Solar System. ... In astronomy, the solar mass is a unit of mass used to express the mass of stars and larger objects such as galaxies. ... The Chandrasekhar limit, is the maximum mass possible for a white dwarf (one of the end stages of stars when they cool down) and is approximately 3 × 1030 kg, around 1. ... Betelgeuse (Alpha (α) Orionis) is a semiregular variable star located 427 light-years away [1]. It is the second brightest star in the constellation Orion, and the ninth brightest star in the night sky. ... Supergiants are the most massive stars. ... Top: artists conception of a supermassive black hole drawing material from a nearby star. ... NGC 4414, a typical spiral galaxy in the constellation Coma Berenices, is about 17,000 parsecs in diameter and approximately 20 million parsecs distant. ... Sagittarius A* (pronounced A-star) is a bright and very compact source of radio emission at the center of the Milky Way Galaxy, part of a larger astronomical feature at that location (Sagittarius A). ... The Globular Cluster M80 in the constellation Scorpius is located about 28,000 light years from the Sun and contains hundreds of thousands of stars. ... The Milky Way (a translation of the Latin Via Lactea, in turn derived from the Greek Galaxia Kuklos; or simply the Galaxy) is a barred spiral galaxy in the Local Group, and has special significance to humanity as the location of the solar system, which is located near the Orion... The Milky Way (a translation of the Latin Via Lactea, in turn derived from the Greek Galaxia Kuklos; or simply the Galaxy) is a barred spiral galaxy in the Local Group, and has special significance to humanity as the location of the solar system, which is located near the Orion... The Virgo Supercluster The Virgo Supercluster or Local Supercluster is the galactic supercluster that contains the Local Group, the latter which, in its turn, contains the Milky Way and Andromeda galaxies. ... The mass of the observable universe can be estimated using estimations for its density and size. ...

External links

  • Mass units conversion calculator

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Orders of magnitude (280 words)
An order of magnitude is a factor of ten.
Orders of magnitude are quite easily and commonly described through the use of scientific notation and powers of ten.
SI units are used together with SI prefixes: these were devised with orders of magnitude in mind.
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