- Coordinates, Dates and Ephemeris
- Julien Milli and Callum Bellhouse
Python provides powerful tools to work with astronomical coordinates, we will
show examples of how to retrieve coordinates, how to convert it to a different
reference frame, and how to display it in different units. Python also provides
tools to manipulate dates and times, in different format (julian date, sideral time, UTC..)
which can be thereafter associated to the coordinates.
Pyephem is a useful package for calculating observation parameters from earth-based positions.
Expanding on this session on coordinates and dates, we will show examples of how Pyephem can
calculate sky positions from specific lat/lon/alt positions on Earth at specified times, compute
angular distances, give rise/set times and produce pretty pythonised finding charts for observing
proposals (or your own enjoyment).
- Example codes.