Finish up docs and declare version 1.25
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Changelog
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=========
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1.25 — 2020 July ?
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------------------
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1.25 — 2020 July 24
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-------------------
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* Added a routine to load Stellarium constellation lines,
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which is featured in a new example script in :doc:`example-plots`
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that produces a finder chart for comet C/2020 F3 NEOWISE.
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* Added :func:`~skyfield.data.stellarium.parse_constellations()`
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and :func:`~skyfield.data.stellarium.parse_star_names()`
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to load Stellarium star names and constellation lines.
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Constellation lines are featured in a new example script
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:ref:`neowise-chart` that produces a finder chart
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for comet C/2020 F3 NEOWISE.
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* The Hipparcos star catalog should now load faster, having switched
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behind the scenes to a higher performance Pandas import routine.
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* Fixed the ability of :meth:`~skyfield.timelib.Timescale.utc()` to
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accept a Python ``datetime.date`` object as its argument.
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`#409 <https://github.com/skyfielders/python-skyfield/issues/409>`_
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* Slightly lowered the precision of two tests when they detect that
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Python is compiled for a 32-bit processor, so the test suite can
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succeed when contributors package Skyfield for 32-bit Linux.
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`#411 <https://github.com/skyfielders/python-skyfield/issues/411>`_
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1.24 — 2020 July 20
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-------------------
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@ -5,5 +5,5 @@ functions and classes there. See the ``documentation`` directory inside
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the source code, as well as the http://rhodesmill.org/skyfield/ site!
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"""
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VERSION = (1, 24)
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VERSION = (1, 25)
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__version__ = '.'.join(map(str, VERSION))
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@ -29,11 +29,11 @@ from .functions import load_bundled_npy
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from .timelib import Time, julian_date_of_besselian_epoch
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def load_constellation_map():
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"""Load Skyfield's constellation map and return a lookup function
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"""Load Skyfield's constellation boundaries and return a lookup function.
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Skyfield carries an internal constellation map that is optimized for
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quick position lookup. Call this function to load the map and
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return a function mapping position to constellation name.
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Skyfield carries an internal map of constellation boundaries that is
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optimized for quick position lookup. Call this function to load the
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map and return a function mapping position to constellation name.
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>>> from skyfield.api import position_of_radec, load_constellation_map
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>>> constellation_at = load_constellation_map()
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@ -17,7 +17,9 @@ def parse_constellations(lines):
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]
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Each name is a 3-letter constellation abbreviation; each star is an
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integer Hipparcos catalog number.
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integer Hipparcos catalog number. See :ref:`neowise-chart` for an
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example of how to combine this data with the Hipparcos star catalog
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to draw constellation lines on a chart.
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"""
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constellations = []
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@ -310,6 +310,8 @@ Constellations
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==============
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.. autofunction:: skyfield.api.load_constellation_map
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.. autofunction:: skyfield.data.stellarium.parse_constellations
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.. autofunction:: skyfield.data.stellarium.parse_star_names
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Searching
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=========
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@ -19,8 +19,10 @@ these are only intended to be a starting point
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for building your own scripts,
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either with matplotlib or whatever other plotting library you prefer.
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Finder chart for comet NEOWISE
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==============================
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.. _neowise-chart:
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Drawing a finder chart for comet NEOWISE
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========================================
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Here is a stand-alone script
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that brings together four different data sources —
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@ -61,8 +63,8 @@ But the basic data loading and filtering will be the same,
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so hopefully the script will still help get you started
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in targeting a more modern plotting library.
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Satellite altitude during re-entry
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==================================
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Plotting satellite altitude during re-entry
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===========================================
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Here is the decreasing altitude of a satellite as its orbit decayed
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and it re-entered the atmosphere above the Pacific Ocean:
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