def positions(dtime=None):
"""Prints information for all supported planets for a
specified datetime.
"""
if dtime is None:
dtime = _get_current_utc_datetime()
print("Current planetary data:\n")
print("PLANET R.ASCENSION DECLINATION DIST (AU)* ZODIAC ZODIAC SIGN")
print("======= =========== ============= ========== ====== ===========")
for planet in [Sun, Mercury, Venus, Mars, Jupiter,
Saturn, Uranus, Neptune, Pluto, Moon]:
plnt = planet(dtime)
print("{0:8}: {1}, {2}, {3:10.7f} {4} {5}".format(
plnt.name().capitalize(),
plnt.right_ascension(formatted=True),
plnt.declination(formatted=True),
plnt.distance(),
plnt.right_ascension(zodiac=True),
plnt.zodiac_sign()
))
print("\n* Distance for the moon given in Earth radii.")
def __init__(self, dtime=None):
"""Initializer."""
# Get current datetime if one not provided
self._dtime = dtime
if self._dtime is None:
self._dtime = _get_current_utc_datetime()
# Initialize _rhc for moon calculations
self._rhc = 0
# Get and store Keplerian elements
self._oes = self._get_orbital_elements()
