delta_obs_ra_to_cirs_ra

Astronomy.delta_obs_ra_to_cirs_ra(mjd, longitude, latitude)

difference between radio astronomers observed coords and CIRS coords

Parameters

  • mjd ((float) modified Julian date) –

  • longitude ((float) in degrees or as astropy Angle) –

  • latitude ((float) in degrees or as astropy Angle) –

Returns

Return type

hour angle as astropy.coordinates.Angle