EarthSkyさんのイラストまとめ

Sagittarius? Here’s your constellation 🌌

How to find Sagittarius on August evenings, plus the lore and science of this constellation. Find links to the rest of the zodiac constellations at the bottom of this post: https://t.co/HtGSW0HWBJ

Image via https://t.co/pwEZ3MTRrU.

The Hubble Space Telescope celebrated its 30th anniversary last week 🛰

Launched April 24, 1990, it's spent 3 decades acquiring magnificent images of distant space objects, providing a "time machine" for astronomers. Read more and watch a video.: https://t.co/PrVfjRkVGn 👓👀

Gemini? Here's your constellation 🌌

Most people see the constellation Gemini as just 2 bright stars - Castor and Pollux - sometimes called the Gemini twins. These two stars aren't twins, of course. Read more: https://t.co/hOFYlSA4xm 👓

Image via Wikipedia.

Full moon comes at 12:29 UTC today (8:29 a.m. Eastern). So the moon is officially full today. But - for much of the world, including Europe, Africa and the Americas - the moon you see rising tonight will already be waning. Read more https://t.co/VUtijdMW9W

Solstice is tomorrow https://t.co/h6WQMwfVCo
December solstice 2017 arrives on December 21 at 16:28 UTC; (translate UTC to your time zone.
https://t.co/T0lPhrFjUp)

Solstice coming up December 21 ... Details: https://t.co/Y2OYdC2I2t

It arrives December 21 at 16:28 UTC

Translate to your time zone: https://t.co/NHDAQTm4XD

Milky Way photo with 46 billion pixels ...
https://t.co/5k3VxSdkEt

It's the largest astronomy photo ever

New Horizons silent during today's flyby
http://t.co/SqtbJOFME2

Artist's concept of Charon-light cast on Pluto.

Wow! Stunning new Pillar of Creation!
http://t.co/5rQxg4eDeI