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| Symbol: |
pc |
| Category: |
Length |
| SI Equivalent: |
3.08568×1016 m |
| Dimension: |
L |
| Notes |
Large length unit used in astronomy to describe distances to stars and galaxies. It is the distance from the sun to a remote star when the largest possible angle formed by the sun, the star, and the earth, in that order, is 1 second of angle.
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520.0 pc =
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| Length |
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Symbol |
Unit Name |
| 3.03216×1029 |
a.u., a0, b |
a.u. of length |
| 1.60455×1029 |
Å |
angstrom |
| 5.51604×1022 |
arcmin |
arcmin |
| 1.07258×108 |
AU, UA |
astronomical unit |
| 1.60455×1037 |
am |
attometer |
| 1.89514×1021 |
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barleycorn (UK) |
| 3.03216×1029 |
a0, b |
bohr (first Bohr radius) |
| 4.3869×1017 |
|
bolt (US cloth) |
| 7.58056×1021 |
line (UK) |
button (UK) |
| 2.52685×1022 |
line (US) |
button (US) |
| 8.66389×1016 |
|
cable length (int.) |
| 8.65835×1016 |
|
cable length (UK) |
| 7.3115×1016 |
|
cable length (US) |
| 6.31714×1022 |
caliber, cin |
caliber (centiinch) |
| 1.60455×1021 |
cm |
centimeter |
| 5.26428×1017 |
ch |
chain (engineer's) |
| 7.97618×1017 |
ch |
chain (Gunter's) |
| 5.26428×1017 |
ch |
chain (Ramsden's) |
| 7.97618×1017 |
ch |
chain (surveyor's) |
| 3.50952×1019 |
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cubit (UK) |
| 1.60455×1018 |
dam |
decameter |
| 1.60455×1020 |
dm |
decimeter |
| 5.69406×1033 |
re |
electron classical radius |
| 1.40381×1019 |
|
ell |
| 3.80451×1021 |
|
ems (pica) |
| 16.0455 |
Em |
exameter |
| 8.7738×1018 |
fath |
fathom |
| 1.60455×1034 |
fm |
femtometer |
| 1.60455×1034 |
F, f |
fermi |
| 3.03216×1029 |
a0, b, a.u. |
first Bohr radius |
| 5.26428×1019 |
ft |
foot |
| 4.81366×1022 |
fr |
French |
| 7.97618×1016 |
fur |
furlong (UK) |
| 7.97618×1016 |
fur |
furlong (US) |
| 1.60455×1010 |
Gm |
gigameter |
| 1.57928×1020 |
hd |
hand (UK) |
| 1.60455×1017 |
hm |
hectometer |
| 1.69605×10-6 |
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hubble |
| 6.31714×1020 |
in |
inch |
| 1.60455×1016 |
km |
kilometer |
| 0.52 |
kpc |
kiloparsec |
| 3.32412×1015 |
|
league (Canadian) |
| 2.88796×1015 |
leag. (int. naut.) |
league (int. naut.) |
| 3.32341×1015 |
leag. (stat.) |
league (statute, land) |
| 2.88612×1015 |
leag. (UK, naut.) |
league (UK, naut.) |
| 2.88612×1015 |
leag. (US, naut.) |
league (US, naut.) |
| 6.19469×105 |
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light-day |
| 1.48673×107 |
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light-hour |
| 8.92035×108 |
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light-minute |
| 5.35221×1010 |
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light-second |
| 1696.05 |
ly |
light-year |
| 7.58056×1021 |
line (UK) |
line (UK) |
| 2.52685×1022 |
line (US) |
line (US) |
| 5.26428×1019 |
|
link (engineer's) |
| 7.97618×1019 |
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link (Gunter's) |
| 5.26428×1019 |
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link (Ramsden's) |
| 7.97618×1019 |
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link (surveyor's) |
| 1.60455×1013 |
Mm |
megameter |
| 1.60455×1019 |
m |
meter |
| 6.31714×1026 |
µin |
microinch |
| 1.60455×1025 |
µm |
micron |
| 6.31714×1023 |
mil, thou |
mil (thou) |
| 2.16201×1015 |
mile (geogr.) |
mile (geographical) |
| 9.97021×1015 |
mi (int.) |
mile (international) |
| 8.66389×1015 |
mi (naut., int.) |
mile (nautical, international) |
| 8.6484×1015 |
mi (naut., teleg.) |
mile (nautical, telegraph) |
| 8.65835×1015 |
mi (naut., UK, US) |
mile (nautical, UK, US) |
| 9.97023×1015 |
mi (stat.) |
mile (statute, land) |
| 9.97021×1015 |
mi (survey, US) |
mile (survey, US) |
| 1.60455×1022 |
mm |
millimeter |
| 1.60455×1028 |
mµ, nm |
millimicron |
| 7.01904×1019 |
|
nail (UK) |
| 1.60455×1028 |
nm |
nanometer |
| 8.66389×1015 |
mi (int. naut.) |
nautical mile (international) |
| 8.65835×1015 |
mi (UK, US, naut.) |
nautical mile (UK, US) |
| 2.10571×1019 |
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pace (UK) |
| 2.10571×1020 |
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palm (UK) |
| 3.19047×1018 |
rd |
perch (rod, pole) |
| 1.60455×104 |
Pm |
petameter |
| 3.80449×1021 |
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pica |
| 1.60455×1031 |
pm |
picometer |
| 4.56539×1022 |
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point (US printer's) |
| 3.19047×1018 |
rd |
pole (rod, perch) |
| 1.60455×1012 |
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quadrant |
| 3.19047×1018 |
rd |
rod (perch, pole) |
| 2.63214×1018 |
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rope (UK) |
| 7.01904×1019 |
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span |
| 1.60455×107 |
Tm |
terameter |
| 6.31714×1023 |
thou, mil |
thou (mil) |
| 1.60422×1032 |
UX, X |
X-unit |
| 1.75476×1019 |
yd |
yard |
| 1.60455×1043 |
ym |
yoctometer |
| 1.60455×10-5 |
Ym |
yottameter |
| 1.60455×1040 |
zm |
zeptometer |
| 1.60455×10-2 |
Zm |
zettameter |
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