#!/usr/bin/env python
# coding: utf-8

# ## Using WorldWide Telescope inside the Jupyter notebook

# This notebook shows how to start up the WorldWide Telescope Jupyter widget, and how to subsequently modify its properties. You can find out more about using pywwt in the [documentation](http://pywwt.readthedocs.io).
# 
# We start off by importing the ``WWTJupyterWidget`` class:

# In[ ]:


from pywwt.jupyter import WWTJupyterWidget


# We then use this class to create the widget (note that the second ``wwt`` is needed to actually show the contents of the widget):

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wwt = WWTJupyterWidget()
wwt


# Once the widget appears, you can then use the ``wwt`` object to change the visual settings, interact with WorldWide Telescope, and create annotations:

# In[ ]:


from astropy import units as u
from astropy.coordinates import SkyCoord
M31 = SkyCoord('00h42m44.330s +41d16m07.50s')
wwt.center_on_coordinates(M31, fov=10 * u.deg)
wwt.add_circle(M31, radius=1 * u.deg)
wwt.constellation_figures = True


# You can find out more about interacting with the ``wwt`` object in [Basic controls](http://pywwt.readthedocs.io/en/latest/settings.html) and [Showing annotations](http://pywwt.readthedocs.io/en/latest/annotations.html).