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2.20 Distance table

 

Frank L. Preuss

 

This is a table which shows distances. The structure is logarithmic and is based on kilometres. The first three columns give information about units of length, as for example metres or kilometres or light-years. The second three columns give examples thereto.

The smallest distance is here the radius of an electron, 2,82 x 10-18 km; the biggest is the distance from the centre of the Earth to the edge of the visible Universe, 1,24 x 1023 km.

 

Distance table
Units of lengthExamples
km Light- years Examples km Light- years Examples
10-18A convenient unit of length for measuring nuclear sizes is the femtometre (fm), which equals 10-15 metre.
4 x 10-18 - 15 x 10-18The diameter of a nucleus of an atom depends on the number of particles it contains and ranges from about 4 fm for a light nucleus such as carbon to 15 fm for a heavy nucleus such as lead.
2.82 x 10-18electron radius (Phys.). The classical theoretical value is 2.82 x 10-15 m, but experimentally the effective value varies greatly with the interaction concerned.
10-18Electromagnetic radiation: Wave length λ, 10-15 m, High radiation, 1.24 GeV, 3 x 1023 Hz
10-17
10-17Electromagnetic radiation: Wave length λ, 10-14 m, High radiation, 124 MeV, 3 x 1022 Hz
10-16
10-16Electromagnetic radiation: Wave length λ, 10-13 m, Gamma radiation, 12.4 MeV, 3 x 1021 Hz, 3 Zetahertz
10-151 Picometer, pm, 10-12 m
10-15Electromagnetic radiation: Wave length λ, 10-12 m, Gamma radiation, 1.24 MeV, 3 x 1020 Hz
10-14
10-14Electromagnetic radiation: Wave length λ, 10-11 m, X-rays, hard, 124 keV, 3 x 1019 Hz
10-13A convenient unit of length for measuring atomic sizes is the angstrom (Å), defined as 10-10 metre. The radius of an atom measures 1-2 Å.
1-2 x 10-13The radius of an atom measures 1-2 Å.
10-13Electromagnetic radiation: Wave length λ, 10-10 m, X-rays, medium, 12.4 keV, 3 x 1018 Hz, 3 Exahertz
10-121 Nanometer, nm, 10-9 m
10-12Electromagnetic radiation: Wave length λ, 10-9 m, X-rays, soft, 1.24 keV, 3 x 1017 Hz
10-11
10-11Electromagnetic radiation: Wave length λ, 10-8 m, X-rays, Ultraviolet radiation, 124 eV, 3 x 1016 Hz
10-10
10-10Electromagnetic radiation: Wave length λ, 10-7 m, Ultraviolet radiation, UV-C/B/A, 12.4 eV, 3 x 1015 Hz, 3 Petahertz
10-91 Micrometre, µ, 10-6 m
10-9Electromagnetic radiation: Wave length λ, 10-6 m, That for man visible light spectrum (light), 1.24 eV, 3 x 1014 Hz
10-8
10-8Electromagnetic radiation: Wave length λ, 10-5 m, Infrared radiation, 124 meV, 3 x 1013 Hz
10-7
10-7Electromagnetic radiation: Wave length λ, 10-4 m, Terahertz radiation, 12.4 meV, 3 x 1012 Hz, 3 Terahertz
10-61 Millimetre, mm, 10-3 m
10-6Electromagnetic radiation: Wave length λ, 10-3 m, Microwave, Radar, 1.24 meV, 3 x 1011 Hz
10-51 Centimetre, cm, 10-2 m
10-5Electromagnetic radiation: Wave length λ, 10-2 m, Microwave, Microwave oven, 124 µeV, 3 x 1010 Hz
2,54 10-5Inch, 2.54 cm
30,48 10-5Foot, 30,48 cm
10-41 Decimetre, dm, 10-1 m
10-4Electromagnetic radiation: Wave length λ, 10-1 m, Microwaves, Microwave oven, 12.4 µeV, 3 x 109 Hz, 3 Gigahertz
10-31 Metre, m, 100 m
10-3Electromagnetic radiation: Wave length λ, 100 m, Radio, VHF/UHF, 1.24 µeV, 3 x 108 Hz
0,914 10-3Yard, 0,914 m
10-2
10-2Electromagnetic radiation: Wave length λ, 101 m, Radio, FM station, 124 neV, 3 x 107 Hz
10-1
10-1Electromagnetic radiation: Wave length λ, 102 m, Radio, Short wave, 12.4 neV, 3 x 106 Hz, 3 Megahertz
1001 Kilometre, km, 103 m
100Electromagnetic radiation: Wave length λ, 103 m, Radio, Medium wave, 1.24 neV, 3 x 105 Hz
1,609 x 100Mile, 1,609 km
101
101Electromagnetic radiation: Wave length λ, 104 m, Radio, Long wave, 124 peV, 3 x 104 Hz
102
102Electromagnetic radiation: Wave length λ, 105 m, Alternating currents, High frequency, 12.4 peV, 3 x 103 Hz, 3 Kilohertz
1031 Megametre, Mm
103Electromagnetic radiation: Wave length λ, 106 m, Alternating currents, medium frequency, brain waves, 1.24 peV, 3 x 102 Hz
6.380 x 103Radius of earth, 6 380 km
104
104Electromagnetic radiation: Wave length λ, 107 m, Alternating currents, Low frequency, brain waves, 124 feV, 3 x 101 Hz
105
105Electromagnetic radiation: Wave length λ, 108 m, brain waves, 12.4 feV, 3 x 100 Hz
3.840 x 105Distance from the centre of Earth to Moon, 384.000 km
106
106
107
4.2 x 107Distance from the centre of Earth to Venus, 42 million km
108
1.5 x 108Distance from the centre of Earth to Sun, 150 million km
109
1.2 x 109Distance from the centre of Earth to Saturn, 1.2 billion km
1010
1.0 x 1010Distance from the centre of earth to the Kuiper Belt, 10 billion km
1011
1011
1012
9.5 x 1012Distance from the centre of earth to the Oort Cloud, approx. 1 light-year, 9.5 trillion km
9.5 x 1012100The Oort Cloud: The Sun's gravity dominates a region of space with the radius of roughly one light-year, or 9.5 trillion km (5.9 trillion miles). At the outer edge of the Solar System lies a vast spherical halo of deep-frozen comets - the Oord Cloud.
9.46 x 1012100One light-year, or 9,460,000,000,000 km9.46 x 1012100
1013
4.35 x 100Distance from the centre of earth to the nearest star (Proxima Centauri)
1014
1014
1015
1015
1016
10161 x 103Distance from the centre of earth to the 1,000-light-year sphere. 90 per cent of naked-eye stars are within 1,000 light-years of earth
1017
28 x 103Distance from the centre of earth to the centre of the Milky Way
1018
1018
1019
2.4 x 10192.5 x 106Distance from the centre of earth to the Andromeda Galaxy
1020
60 x 106Distance from the centre of earth to the Virgo Cluster
1021
9.5 x 10211 x 109Distance from the centre of earth to the nearest quasar
1022
1022
1023
1.24 x 102313.8 x 109Distance from the centre of earth to the edge of the visible Universe
Units of lengthExamples
km Light- years Examples km Light- years Examples

 

This is the end of "2.20 Distance table"
To the German version of this chapter: 2.20 Distanz-Tafel

 

 

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