Aperture

class sbpy.activity.Aperture(dim)[source]

Bases: ABC

Abstract base class for photometric apertures.

Notes

The shape of the aperture must be passed as the first argument of __init__, or else as_length and as_angle must be overridden.

Methods Summary

as_angle(eph)

This aperture in units of angle.

as_length(eph)

This aperture in units of length.

coma_equivalent_radius()

Circular aperture radius that yields same flux for a 1/ρ coma.

Methods Documentation

as_angle(eph)[source]

This aperture in units of angle.

Parameters:
ephdictionary-like, Ephem, or Quantity

The observer-target distance (delta).

Returns:
aper
as_length(eph)[source]

This aperture in units of length.

Parameters:
ephdictionary-like, Ephem, or Quantity

The observer-target distance (delta).

Returns:
aper
abstract coma_equivalent_radius()[source]

Circular aperture radius that yields same flux for a 1/ρ coma.

Returns:
rapQuantity