ssapy_toolkit.Coordinates.local_and_equitorial
Functions
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Convert equatorial coordinates (right ascension, declination) to horizontal coordinates (azimuth, altitude). |
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Convert horizontal coordinates (azimuth, altitude) to equatorial coordinates (hour angle, declination). |
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Convert right ascension and local time to hour angle. |
- ssapy_toolkit.Coordinates.local_and_equitorial.equatorial_to_horizontal(observer_latitude, declination, right_ascension=None, hour_angle=None, local_time=None, hms=False)[source]
Convert equatorial coordinates (right ascension, declination) to horizontal coordinates (azimuth, altitude).
Parameters: - observer_latitude (float): Latitude of the observer in degrees. - declination (float): Declination of the object in degrees. - right_ascension (str or float, optional): Right ascension in HH:MM:SS format or decimal degrees. - hour_angle (str or float, optional): Hour angle in HH:MM:SS format or decimal degrees. - local_time (str or float, optional): Local time in HH:MM:SS format or decimal hours. - hms (bool): If True, interpret inputs as HH:MM:SS strings.
Returns: - (float, float): Azimuth and altitude in degrees.
Author: Travis Yeager (yeager7@llnl.gov)
- ssapy_toolkit.Coordinates.local_and_equitorial.horizontal_to_equatorial(observer_latitude, azimuth, altitude)[source]
Convert horizontal coordinates (azimuth, altitude) to equatorial coordinates (hour angle, declination).
Parameters: - observer_latitude (float): Latitude of the observer in degrees. - azimuth (float): Azimuth in degrees. - altitude (float): Altitude in degrees.
Returns: - (float, float): Hour angle and declination in degrees.
Author: Travis Yeager (yeager7@llnl.gov)
- ssapy_toolkit.Coordinates.local_and_equitorial.rightasension2hourangle(right_ascension, local_time)[source]
Convert right ascension and local time to hour angle.
Parameters: - right_ascension (str or float): The right ascension of the object in HH:MM:SS format or decimal degrees. - local_time (str or float): The local time in HH:MM:SS format or decimal hours.
Returns: - str: The corresponding hour angle in HH:MM:SS format.
Author: Travis Yeager (yeager7@llnl.gov)