FITS#

class astropy.units.format.FITS(*args, **kwargs)[source]#

Bases: Base, _GenericParserMixin

The FITS standard unit format.

This supports the format defined in the Units section of the FITS Standard.

Attributes Summary

name

Methods Summary

parse(s[, debug])

Convert a string to a unit object.

to_string(unit[, fraction])

Convert a unit to its string representation.

Attributes Documentation

name = 'fits'#

Methods Documentation

classmethod parse(s, debug=False)[source]#

Convert a string to a unit object.

classmethod to_string(unit, fraction=False)[source]#

Convert a unit to its string representation.

Implementation for to_string.

Parameters:
unit|Unit|

The unit to convert.

fraction{False|True|’inline’|’multiline’}, optional

Options are as follows:

  • False : display unit bases with negative powers as they are (e.g., km s-1);

  • ‘inline’ or True : use a single-line fraction (e.g., km / s);

  • ‘multiline’ : use a multiline fraction if possible (available for the latex, console and unicode formats; e.g., $\mathrm{\frac{km}{s}}$). If not possible, use ‘inline’.

Raises:
ValueError

If fraction is not recognized.