Absolute magnitude of stars from apparent magnitude and distance
================================================================

Absolute magnitude can be calculated using apparent magnitude and distance to the object.

**Links:**

#. `Wikipedia, second formula <https://en.wikipedia.org/wiki/Absolute_magnitude#Apparent_magnitude>`__.

.. py:currentmodule:: symplyphysics.laws.astronomy.absolute_magnitude_from_apparent_magnitude_and_distance

.. py:data:: absolute_magnitude

    :attr:`~symplyphysics.symbols.astronomy.absolute_magnitude` of the object.

Symbol:
    :code:`M`

Latex:
    :math:`M`

Dimension:
    :code:`dimensionless`


.. py:data:: apparent_magnitude

    :attr:`~symplyphysics.symbols.astronomy.apparent_magnitude` of the object.

Symbol:
    :code:`m`

Latex:
    :math:`m`

Dimension:
    :code:`dimensionless`


.. py:data:: distance

    :attr:`~symplyphysics.symbols.classical_mechanics.euclidean_distance` to the object.

Symbol:
    :code:`d`

Latex:
    :math:`d`

Dimension:
    :code:`length`


.. py:data:: distance_constant

    Constant equal to :math:`2.063 \cdot 10^6` astronomical units.

Symbol:
    :code:`d_0`

Latex:
    :math:`d_0`

Dimension:
    :code:`length`


.. py:data:: law

    :code:`M = m - 5 * log(d / d_0, 10)`


    Latex:
        .. math::
            M = m - 5 \log_{10} \left( \frac{d}{d_0} \right)