Lunar Calendar

Calendars and Timekeeping

A lunar calendar leap month is an extra, inserted month added to some lunar or lunisolar calendars to keep the calendar aligned with the seasons and astronomical cycles. Because...

Science & Nature

The 2019 full moon calendar presents a reliable reference for tracking each month’s full phase, including traditional names, astronomical timing, and cultural context. This gu...

lunar-astronomy

A full moon occurs when the Moon is opposite the Sun in ecliptic longitude, reaching its brightest phase for the month. In 2017, there were 12 full moons, each with a date, appr...

Science and Technology

Moon phases describe the shape of the sunlit portion of the Moon visible from Earth, changing in a predictable cycle driven by the Moon’s orbit and the relative positions of t...

time-and-calendar

A lunar calendar tracks months by cycles of the Moon, with a year of about 354 days and no direct tie to the solar year. 2018 illustrates how lunar dates shift annually across s...

science

The spring equinox moon is not a single, fixed astronomical event like a solar eclipse. Instead, it refers to the full moon (or sometimes a notable waxing moon) that occurs clos...

culture

The Chinese birth calendar is a lunisolar system that pairs a repeating 12-year zodiac cycle with lunar months and leap months to mark births and events. Unlike a purely solar c...

lunar-astronomy

The full moons of 2017 followed the usual astronomical patterns, each occurring roughly every 29.5 days as the Moon completed its orbit around Earth. Exact时刻 varied by time...

lunar-phases

A Moon calendar 2018 maps the Moon's phases, apogee and perigee, and other phenomena for an entire year. Each month shows new Moon, first quarter, full Moon, and last quarter da...

astronomy

Each full moon in 2019 offers a predictable celestial event that can be tracked for astronomy, photography, and cultural reference. This guide provides the exact dates and times...