acronychal


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acronychal

,

acronycal

,

acronical

or

acronic

adj
occurring at sunset: the star has an acronychal rising.
[C16: from Greek akronychos at sunset, from acro- + nykh-, nyx night]
aˈcronychally, aˈcronycally, aˈcronically adv
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References in periodicals archive ?
In addition to the determination of the times of prayer, the direction of Mecca, and the first sighting of the lunar crescent, topics discussed in such works include the lunar mansions and heliacal risings and acronychal settings of stars in relation to the seasons.
a sidereal cycle based on observations of the acronychal and heliacal rising of the star-cluster Pleiades (named Mataliki in Proto-Polynesian), which determined the transitions between seasons;
There are two astronomical phenomena which may have determined the orientation of the five temples in this cluster: the acronychal rising of the star-cluster Pleiades or Makali'i just after sunset, which determined the onset of the Makahiki season and the new year; and/or, the summer solstice.