moonset

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moonset

[′mün‚set]
(astronomy)
The crossing of the visible horizon by the upper limb of the descending moon.
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References in periodicals archive ?
When the arc of light has a full 48 hours to grow (assuming only the first two post-conjunction moonsets are relevant), what prevents seeing crescents down to nearly zero lag?
The moonset lag is the difference between time of sunset and time of moonset.
Columns 14-15 give the UT moonset (or moonrise) moment in hours and minutes.
Columns 16-19 are the astrometric geocentric (equator J2000) right ascension and declination of the sun, in hours, minutes, degrees, and arc minutes, at the mid-lag moment between sunset and moonset.