test_core.py 文件源码

def test_rho_as_angle():
    # arctan(100 km, 1 au) * 206264.806 = 0.13787950659645942
    rho = rho_as_angle(100 * u.km, {'delta': 1 * u.au})
    assert np.isclose(rho.to(u.arcsec).value, 0.13787950659645942)