#calippus

[quiltofstars]

Some lunar features between Mare Imbrium ("Sea of Showers") and Mare Serenitatis ("Sea of Serenity") // ortzemuga

Click below to read more about some of the features in this image as well as a labeled image!

Mare Serenitatis (right) is Latin for the "Sea of Serenity." It is about 419 miles across. Both the Soviet mission Luna 21 and the American mission Apollo 17 landed in this sea in 1973 and 1972, respectively.

Mare Imbrium (left) is Latin for the "Sea of Showers." It is about 712 miles across. The Soviet mission Luna 17 landed here in 1970 and deployed the first robotic rover. The American mission Apollo 15 landed here in 1971, letting Americans spend 3 days on the Moon. More recently, the Chinese mission Chang'e 3 landed here in 2013.

These lunar seas are split by the Montes Caucasus mountain range named after the Caucasus Mountains on Earth.

Within this mountain range are two craters. Calippus crater is named after the Greek astronomer and mathematician Callippus (c. 370 - 300 BC). He made careful measurements of the lengths of the seasons. Nearby is Alexander crater, named after none other than Alexander the Great (356 - 323 BC).

Nearby in Mare Imbrium, Cassini crater is named after the Italian astronomers Giovanni Cassini (1625-1712) and his son Jacques Cassini (1677-1756). They both made strides in astronomy, observing Saturn, Mars, and Jupiter.

Theaetetus crater is named after the ancient Greek mathematician Theaetetus of Athens (c. 417 - 369 BC). He contributed to the study of irrational numbers.

Aristillus crater is named after the ancient Greek astronomer Aristyllus (c. 261 BC). He might have compiled one of the first catalogs of the fixed stars.

[charcharpinks]

lmao I just saw you comment on the Goofmas Christmas Special. Merry Goofmas, Papa Bless!

haahha that is so random!!

here’s the video for everyone who has not seen it.

Papa bless. 

[ewaneneollav]

Didn't your name used to be aaaaa2 not aaaaa42, or does it represent your follower level?

ok

[ewaneneollav]

Omegas, autocorrect wins this round

OWned

[ewaneneollav]

Are you still on omegas tag Reddit??

yeah

[dragontameroutoftime]

Whenever I see you I'm always like 'oh yeah that's hiccup, why an I following hiccup'

((well, why are you???????))

[ewaneneollav]

You ever played Hearthstone?

nope

[castironnbitch]

(✿◠‿◠) Your theme is amazing!!

oh my gosh thank you!!

url: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10

icon: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10

overall: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10

compliment: youre adorable. yes i looked in your selfie tag :)

please blacklist "alyssa blogrates" if you dont wanna see this

want one?