specutils

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library 2.3.0 ·python
verified May 1, 2026

A Python package for spectroscopic astronomical data analysis, part of the Astropy ecosystem. Version 2.3.0 supports Python >=3.11. It provides classes for representing spectra (Spectrum1D, SpectrumList), spectral regions, and operations like resampling, fitting, and combining spectra. Release cadence is irregular with major version bumps about every 2 years.

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