| 释义 |
astronomy unit
Thesaurus| Noun | 1. | astronomy unit - a linear unit used for astronomical distanceslinear measure, linear unit - a unit of measurement of lengthlight year, light-year - the distance that light travels in a vacuum in 1 year; 5.88 trillion miles or 9.46 trillion kilometerslight hour - the distance light travels in a vacuum in one hour; approximately one billion kilometerslight minute - the distance light travels in a vacuum in one minute; approximately 18 million kilometerslight second - the distance light travels in a vacuum in one second; approximately 300,000 kilometersAstronomical Unit, AU - a unit of length used for distances within the solar system; equal to the mean distance between the Earth and the Sun (approximately 93 million miles or 150 million kilometers)parsec, secpar - a unit of astronomical length based on the distance from Earth at which stellar parallax is 1 second of arc; equivalent to 3.262 light years |
astronomy unit
Words related to astronomy unitnoun a linear unit used for astronomical distancesRelated Words- linear measure
- linear unit
- light year
- light-year
- light hour
- light minute
- light second
- Astronomical Unit
- AU
- parsec
- secpar
|