A unit of electromagnetic flux density used in radio astronomy, equal to 10−26 watts per square metre per hertz. Symbol Jy (see J, n. initialisms).
| 单词 | θ1347 |
| 释义 | the world > the universe > cosmology > astronomy > [noun] > radio astronomy > unit used in (2) jansky1966 A unit of electromagnetic flux density used in radio astronomy, equal to 10−26 watts per square metre per hertz. Symbol Jy (see J, n. initialisms). Jy1974 jansky. |
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