#mare fecunditatis

[quiltofstars]

The Moon with featured craters (right to left) Petavius, Balmer, Langrenus, Apollonius, and Firmicus and seas Mare Fecunditatis (”Sea of Fertility”) and Mare Crisium (”Sea of Crises”) // Georges

Petavius crater is named after the French Jesuit Denis Pétau (1583-1652) known for his works on chronology.

Balmer crater is named after the Swiss mathematician Johann Balmer (1825-1898) who studied the hydrogen atom, discovering its series of optical emission lines.

Langrenus crater is named after the Dutch astronomer Michael van Langren (1598-1675) who used observations of the Moon to help determine longitude on Earth.

Apollonius crater is named after Apollonius of Perga (c. 240 BC - 190 BC), an ancient Greek astronomer who defined the terms ellipse, parabola, and hyperbola, and introduced eccentric orbits for the planets.

Firmicus crater is named after Julius Firmicus Maternus (c. 300s AD), a Roman astrologer.

[jmonterol]

MARE FECUNDITATIS

Mare Fecunditatis, debajo del Mare Crisium, mide unos 600 x 500 km. Este mar, de forma irregular, alberga una serie de grietas, Rimae Goclenius, en su borde oeste, y sobre todo los llamativos cráteres gemelos Messier y Messier A, cráteres recientes que presentan unas prominentes casi lineales marcas radiales que se extienden hacia el oeste, como podéis comprobar sobre todo en la imagen inferior.

Maksutov Cassegrain 127. Cámara QHY 5II M.

[quiltofstars]

Mare Crisium (The Sea of Crises, right), Mare Tranquillitatis (The Sea of Tranquility, center), Mare Serenitatis (The Sea of Serenity, top), and Mare Fecunditatis (The Sea of Fertility, bottom) // Antonin Lerch

[nedoliveira1]

China planeja construir base na Lua dentro de caverna

NOTÍCIA: As cavernas lunares podem ser o lar dos futuros exploradores do espaço. Elas são tubos de lava que oferecem proteção contra a radiação, os meteoritos e as temperaturas extremas. Você moraria em uma caverna na Lua?

As cavernas foram um refúgio para os humanos nos tempos pré-históricos. Elas nos protegiam dos elementos, dos predadores e dos rivais, quando nossas únicas tecnologias eram paus, pedras, peles e fogo. Agora, à medida que avançamos para a exploração do espaço, as cavernas podem desempenhar um papel semelhante novamente, mas desta vez na Lua. A Lua é um mundo hostil, cheio de perigos que ameaçam a…

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[cosmicvastness]

NASA Astronomy Picture of the Day 2015 May 30

Messier Craters in Stereo 

Many bright nebulae and star clusters in planet Earth's sky are associated with the name of astronomer Charles Messier, from his famous 18th century catalog. His name is also given to these two large and remarkable craters on the Moon. Standouts in the dark, smooth lunar Sea of Fertility or Mare Fecunditatis, Messier (left) and Messier A have dimensions of 15 by 8 and 16 by 11 kilometers respectively. Their elongated shapes are explained by an extremely shallow-angle trajectory followed by the impactor, moving left to right, that gouged out the craters. The shallow impact also resulted in two bright rays of material extending along the surface to the right, beyond the picture. Intended to be viewed with red/blue glasses (red for the left eye), this striking stereo picture of the crater pair was recently created from high resolution scans of two images (AS11-42-6304, AS11-42-6305) taken during the Apollo 11 mission to the moon.