软件包：python3-gavo-stc（2.7+dfsg-2）

IVOA Space-Time-Coordinate (STC) library

This library handles space-time information within the Virtual Observatory (VO) according to the IVOA (International Virtual Observatory Alliance) STC recommendation.

The VO knows two implementations for STC metadata, one in XML called STC-X and a linear string implementation called STC-S. This library provides support for the generating and parsing of STC-S expressions and STC-X documents. Moreover, it contains various helper functions for the transformation between Earth coordinate systems, for dealing with sky coordinates, for time parsing and time conversions, and for the definition and conversion of units in STC.

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