astropy-fundamentals

You handle FITS I/O by reading the file header to extract WCS information, then map between pixel and world coordinates. This allows precise sky coordinate transformations across different frames for multi-wavelength data analysis workflows.

The best way to attach physical units is using Astropy's units and quantities modules. You can attach physical units to values, convert between different unit systems, and utilize spectral equivalencies for high-precision astronomical calculations.

You perform source measurements and spectral analysis by integrating Astropy with photutils and specutils. This combination provides basic workflows for photometry and spectroscopy, enabling accurate source extraction and spectral data evaluation.

Yes, you can build and query astronomical catalogs with robust coordinate matching. Astropy's coordinate transformation capabilities allow precise cross-matching of sky coordinates across different catalogs and multi-wavelength datasets.

You work with multiple time scales using Astropy's time handling modules. These modules support various time scales and formats, enabling accurate management of high-precision astronomy timelines and temporal data conversions.