(Describer) Title: Moon Phases 2025, Including Libration and Position Angle. Under the title is the logo for the L.R.O.: the Lunar Reconnaissance Orbiter. Against a black background, four animations depict the phases and position of the Moon hour-by-hour throughout 2025. The Moon viewed from one side takes up most of the screen in the center, with a shadow crossing the gray and white terrain from right to left as each month passes in 24 seconds. Dots and labels mark the locations of landings for Apollo missions 11 and 12 and 14 to 17. As the shadow recedes, many other locations appear in the light, including the plain Mare (mah-ray) Frigoris near the top, Mare Imbrium, Mare Serenitatis (seh-ren-ih-TAH-tis), Mare Tranquillatis (trank-will-ih-TAH-tis) and Mare Fecunditatis (feh-kund-ih-TAH-tis) from left to right across the upper-center; and Mare Australe on the bottom-right. The largest Mare, Oceanus Procellarum, is on the far left. As the shadow covers the Moon, it tilts to a point where Mare Frigoris is in the upper-*right* of the image. By the time light reveals it again, it is back to the upper-left. This illustrates the Moon’s libration. Names of dozens of other locations, such as craters, appear as the shadow’s edge crosses them.

(Describer) Behind the Moon, a thin bar shows the distance between the Earth at the left end and the Moon near the right end. Both Earth and Moon are to scale relative to each other and show phases as they rotate. The Moon moves back and forth on the bar each month, between 28 Earths or about 350-thousand kilometers, and almost 32 Earths or about 405-thousand kilometers.

(Describer) In the upper-left corner of the screen, an animation is titled “Ecliptic Plane”. In the center of a ring, the Earth spins counter-clockwise, viewed from above the North Pole. An arrow indicating the direction of the Sun points from the Earth outward. A title within the ring reads “Moon Orbit Plane”. The Moon orbits within the path marked by the ring itself. During the orbit, it also moves side-to-side, from the furthest point, the apogee, at one end of the ring to the nearest point, the perigee, near the opposite end. The bottom half of the ring is a darker color, with the “Descending Node” on the left and the “Ascending Node” on the right. The sun direction arrow slowly moves counter-clockwise over the course of the year, while the apogee, perigee and nodes shift slightly.

(Describer) In the lower-left corner, an animation depicts a smaller version of the moon with its phases. Thin light blue rings around the Moon represent the equator and the meridian. A short purple line at the top of the meridian represents the North Pole of the Moon. These added marks highlight the changes in the Moon’s tilt throughout the year. A blue dot in the center of the Moon represents the sub-Earth point, the location on the Moon where the Earth is directly overhead. A yellow cone moving on the equator ring represents the sub-solar point, where the Sun is directly overhead.

(Describer) A list in the lower-right corner keeps numerical track of various conditions. Time goes up in days, months and hours in Universal Time. The phase number goes up and down as a percentage of the Moon in light. Days, hours and seconds count up until the phase percentage reaches zero, when they count up from zero again. The diameter number in arcseconds goes up and down. The distance from the Earth to the Moon in kilometers and Earths also goes up and down. The J2000 position goes up and down over the course of 24 hours. The subsolar point goes up and down slightly in longitude and greatly in latitude. The sub-earth point in latitude and longitude remains relatively consistent. The pole position angle relative to Celestial North goes back and forth from over 21 degrees to zero to 338 degrees.

(Describer) The Moon goes from full to waning gibbous, then third quarter, then waning crescent, then new.

(Describer) It moves into waxing crescent, first quarter and waxing gibbous as the year comes to a close.