FullMoon
FullMoon[]
gives the date of the next full moon.
FullMoon[date]
gives the date of the first full moon after the given date.
Details and Options
- The instant of full moon is defined by the opposition of the Moon and the Sun in ecliptic longitude.
- In FullMoon[date], date can be any DateObject expression.
- Options of FullMoon include:
-
CalendarType Automatic calendar used to return dates DateFormat Automatic format used to display output dates DateGranularity Automatic calendar granularity of output dates TimeDirection 1 whether to return the next or last full moon TimeSystem Automatic time system of output dates TimeZone $TimeZone time zone of output dates
Examples
open allclose allBasic Examples (2)
Scope (3)
Options (6)
CalendarType (1)
FullMoon returns dates in the Gregorian calendar by default:
DateFormat (1)
FullMoon returns dates in a long format by default:
DateGranularity (1)
FullMoon returns dates with granularity "Instant" by default:
TimeDirection (1)
FullMoon finds the next full moon by default:
TimeSystem (1)
FullMoon returns dates in universal time by default:
TimeZone (1)
FullMoon returns dates in your local time zone by default:
Properties & Relations (6)
At the instant of full moon, the Moon and the Sun have opposite ecliptic longitudes:
The distance between full moons varies between 29.26 and 29.80 days:
The average synodic month is about 29.53 days:
FullMoon returns the date of the next full moon:
Use NewMoon to find the date of the next new moon, which may be before or after that full moon:
Use MoonPhaseDate to find the date of any phase of the Moon:
MoonPhase computes the phase fraction of illumination, which is close to 1 for a full moon:
Full moons correspond to semi-integer lunation numbers:
Therefore, an alternative way of finding full moons is calling FromLunationNumber with semi-integers:
Every lunar eclipse happens within a few minutes of a full moon:
Only some of the 12 or 13 full moons in a year are close to lunar eclipses:
Text
Wolfram Research (2023), FullMoon, Wolfram Language function, https://reference.wolfram.com/language/ref/FullMoon.html.
CMS
Wolfram Language. 2023. "FullMoon." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/FullMoon.html.
APA
Wolfram Language. (2023). FullMoon. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/FullMoon.html