![]() ![]() Brighter in albedo but rugged in topography, let's explore these areas which are often overlooked compared to the more well-known maria. ![]() Lunar highlandsīut there is more to the Moon than just the dark areas the lighter sections not only harbor many of the older craters on the surface, but these are also the higher elevation areas. These two larger mare split off the medium sized Mare Crisium (Sea of Crisis) that hugs the northeastern limb, and Mare Nectaris (Sea of Nectar) rounds out the tour below some highlands near the southern edge of the two larger, eastern maria. ![]() ![]() One may split the interceding mountains and highlands to get to the east side of the Moon via the also small Mare Vaporum (Sea of Vapors), which will lead the observer into the much larger Mare Serenitatis (Sea of Serenity).Ĭontinuing the eastward journey will place the viewer at Mare Tranquillitatis (Sea of Tranquility), terminating near the Moon's limb at Mare Fecunditatis (Sea of Fertility). On the other side of the brightly rayed crater Copernicus on the northern edge of Mare Nubium is Mare Imbrium (Sea of Showers/Rain), which is partially encircled with the few mountain ranges on the side of the Moon facing Earth. On the west side of the Moon is Oceanus Procellarum (Ocean of Storms), the largest "dark" feature on it's surface, reaching approximately 2,500 km (1,600 mi) from north to south, and covering 4,000,000 km 2 (1,500,000 sq mi)!īeyond the southern edge of it and to the south of Mare Nubium (Sea of Clouds) is the comparatively small Mare Humorum (Sea of Moisture - is there any other kind?). Mare Frigoris (Sea of Cold) extends across the northern section of the Moon it is sort of a long and thing mare that caps off the northern tier. Using binoculars, each of these is clearly visible. There are other "water" features on the Moon, but it helps to get acquainted with the most prominent features first. On the map shown at right, the maria are listed in blue, indicating the major areas of interest. They are darker due to an iron-rich content, and have lower albedo - or proportion of reflected light. Though they did not contain water, they are lower areas on the Moon caused by large impacts which later filled with lava, long since cooled. The word comes from the Latin word for "seas," as ancient astronomers viewed these areas as basins perhaps containing water. Pronounced "MAR-ee-uh" (or "MAR-ay" for the singular mare) these are the darker sections visible on the Moons surface. Not so with our natural satellite! First, let's take a look at the major features of the Moon - the maria, highlands, and phases. The planets Mars and Mercury, for example, are not much larger than our Moon's 2160 miles (3500 km) average diameter, but orbit the Sun much further from us so studying them with a telescope is more difficult. The Moon is one of the easiest objects in the night sky to observe, because of both its distance and size. Set printer to "Highest Quality" in order to retain the maximum visibility of features.īONUS! Ever seen the Lunar X or Y features? About the Moon Or download the free 50 FEATURES color coded guide to the Full Moon here. Go directly to the complete Full Moon guide page. A beginners guide to visible lunar features on the Moon. ![]()
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