File: C:/Users/fred/anaconda3/Lib/site-packages/astropy/constants/astropyconst20.py
# Licensed under a 3-clause BSD style license - see LICENSE.rst
"""
Astronomical and physics constants for Astropy v2.0.
See :mod:`astropy.constants` for a complete listing of constants defined
in Astropy.
"""
import warnings
from astropy.utils import find_current_module
from . import codata2014, iau2015
from . import utils as _utils
codata = codata2014
iaudata = iau2015
_utils._set_c(codata, iaudata, find_current_module())
# Overwrite the following for consistency.
# https://github.com/astropy/astropy/issues/8920
with warnings.catch_warnings():
warnings.filterwarnings("ignore", "Constant .*already has a definition")
# Solar mass (derived from mass parameter and gravitational constant)
M_sun = iau2015.IAU2015(
"M_sun",
"Solar mass",
iau2015.GM_sun.value / codata2014.G.value,
"kg",
(
(codata2014.G.uncertainty / codata2014.G.value)
* (iau2015.GM_sun.value / codata2014.G.value)
),
f"IAU 2015 Resolution B 3 + {codata2014.G.reference}",
system="si",
)
# Jupiter mass (derived from mass parameter and gravitational constant)
M_jup = iau2015.IAU2015(
"M_jup",
"Jupiter mass",
iau2015.GM_jup.value / codata2014.G.value,
"kg",
(
(codata2014.G.uncertainty / codata2014.G.value)
* (iau2015.GM_jup.value / codata2014.G.value)
),
f"IAU 2015 Resolution B 3 + {codata2014.G.reference}",
system="si",
)
# Earth mass (derived from mass parameter and gravitational constant)
M_earth = iau2015.IAU2015(
"M_earth",
"Earth mass",
iau2015.GM_earth.value / codata2014.G.value,
"kg",
(
(codata2014.G.uncertainty / codata2014.G.value)
* (iau2015.GM_earth.value / codata2014.G.value)
),
f"IAU 2015 Resolution B 3 + {codata2014.G.reference}",
system="si",
)
# Clean up namespace
del warnings
del find_current_module
del _utils