# C89

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**C89** may refer to:

## Science and technology

- [C89 (C version)](/source/C89_(C_version)) or ANSI C, a C programming-language revision
- [NGC 6087](/source/NGC_6087) (Caldwell catalogue: C89), an open cluster in the constellation Norma

## Other uses

- [Ruy Lopez](/source/Ruy_Lopez) (ECO code: C60–C99), a chess opening
- [Night Work (Women) Convention (Revised), 1948](/source/Night_Work_(Women)_Convention_(Revised),_1948), an ILO convention
- [Sylvania Airport](/source/Sylvania_Airport) (FAA LID), Wisconsin, US

## See also

- [HMNZS *Royalist* (C89)](/source/HMNZS_Royalist_(C89)), a 1942 New Zealand Royal navy cruiser
- [KNHC](/source/KNHC), a radio station in Seattle, Washington known as C89.5

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Adapted from the Wikipedia article [C89](https://en.wikipedia.org/wiki/C89) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/C89?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.