.. _book_fig_chapter1_fig_sdss_S82standards:


SDSS Stripe 82 Standard Stars
-----------------------------
Figure 1.6.

The g-r vs. r-i color-color diagram for the first 10,000 entries in the
Stripe 82 Standard Star Catalog. The region with the highest point density
is dominated by main sequence stars. The thin extension toward the lower-left
corner is dominated by the so-called blue horizontal branch stars and white
dwarf stars.



.. image:: ../images/chapter1/fig_sdss_S82standards_1.png
    :scale: 100
    :align: center


.. raw:: html
    
    <div class="toggle_trigger"><a href="#">

**Code output:**

.. raw:: html

    </a></div>
    <div class="toggle_container">

.. literalinclude:: fig_sdss_S82standards.txt

.. raw:: html

    </div>
    <div class="toggle_trigger" id="start_open"><a href="#">

**Python source code:**

.. raw:: html

    </a></div>
    <div class="toggle_container">

.. literalinclude:: fig_sdss_S82standards.py
    :lines: 12-

.. raw:: html

    </div>
    <div align="right">

:download:`[download source: fig_sdss_S82standards.py] <fig_sdss_S82standards.py>`

.. raw:: html
    
    </div>