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21 lines
997 B
Markdown
//[astronomy](../../index.md)/[io.github.cosinekitty.astronomy](index.md)/[constellation](constellation.md)
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# constellation
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fun [constellation](constellation.md)(ra: [Double](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-double/index.html), dec: [Double](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-double/index.html)): [ConstellationInfo](-constellation-info/index.md)
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Determines the constellation that contains the given point in the sky.
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Given J2000 equatorial (EQJ) coordinates of a point in the sky, determines the constellation that contains that point.
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#### Return
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A structure that contains the 3-letter abbreviation and full name of the constellation that contains the given (ra,dec), along with the converted B1875 (ra,dec) for that point.
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## Parameters
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| ra | The right ascension (RA) of a point in the sky, using the J2000 equatorial system (EQJ). |
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| dec | The declination (DEC) of a point in the sky, using the J2000 equatorial system (EQJ). |
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