An optically thin blob centered on the origin of the coordinate system, in flat space-time. Computation uses the spherical coordinates.

0.
4e6

         8
         30e3
         150
        In UTF-8 locales, "microas" may be written "µas".
         90
        In UTF-8 locales, "degree" may be written "°".
         0
         0
         32

gyoto_sample_standard
FixedStar

Standard objects define a potential of some sort through method __call__, below CriticalValue is inside the object, above is outside. SafetyValue must be slighlty above CriticalValue, a minimum of __call__ is searched when the potential is below SafetyValue to check whether the object has been crossed.

In this Python implementation of the FixedStar (like in the eponymous C++ implementation), CriticalValue and SafetyValue are both set when setting the convenience, ad-hoc property Radius defined in Python. The other Python-defined properties are the 3 space coordinates of the center of the FixedStar, a spectrum and an opacity. 0. 0. 0. 12. 0 `0.001` 0 `0.01`

Gyoto::Astrobj::Python::Standard also support the rest of the Gyoto::Astrobj::Standard Properties: 20.
1e0
0.
Intensity
One can also specify a unit (if Gyoto was compiled with --with-udunits): Intensity[mJy/pix²] Intensity[mJy/µas²] Intensity[J.m-2.s-1.sr-1.Hz-1] Intensity[erg.cm-2.s-1.sr-1.Hz-1] Intensity[mJy.sr-1] Intensity[Jy.sr-1]

0.01