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kiloparsec

kiloparsec

1 9.9
A way to measure very large distances in space equal to about 3,260 light years
  • noun
  • /ˌkɪloʊˈpɑrˌsɛk/
  • Specialized
: kiloparsec
  • The Andromeda Galaxy is approximately 780 kiloparsecs away from Earth.

Examples

  • Previous radio studies determined that 30 Doradus sits at one end of a long (three kiloparsec) dense interstellar cloud.

    Academic text (1992)
  • A kiloparsec corresponds to 31 trillion (19 million miles). -- Ed.

    Academic text (1992)
  • Astronomers often measure distances to galaxies in kiloparsecs rather than light-years.

  • A star located two kiloparsecs from us is in a distant part of our galaxy.

Synonyms

kpc
vskiloparsec
  • Specialized
1 9.9

A unit used in astronomy to measure large distances in space equal to one thousand parsecs

is the basic definition without the extra note about common usage

How Far

megaparsec
  • Specialized
1 9.9
kiloparsec
  • Specialized
1 9.9
parsec
  • Specialized
8 9.9
light-year
  • Specialized
62 4.9

Surface Forms

kiloparsec singular
kiloparsecs plural

Morphology

kiloparsec = parsec (transparent) = kilo + parsec + kilo

Formed with the productive SI prefix 'kilo-' meaning 'one thousand' plus 'parsec', so the meaning 'one thousand parsecs' is directly derivable.

Etymology

Kiloparsec breaks into kilo- meaning 'thousand' (as in kilometer) and parsec, an astronomy unit that comes from the idea of 'parallax', the 'tiny shift' of a star when Earth moves. So a kiloparsec is simply a thousand of those parsecs and is used to measure the very large distances between stars and galaxies.