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 👓👀

On Wednesday and Thursday mornings, you’ll see the moon in the planets’ midst. Read more https://t.co/eCzxI4n0hu

This week … Moon to sweep near 3 morning planets 🌘🌌

Before daybreak this week, watch for the moon to sweep near Mars, Saturn and Jupiter. Read more: https://t.co/eCzxI4n0hu 👓

Image via EarthSky.

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.

Astronomers report on the very distant galaxy XMM-2599. It existed when the universe was very young, yet contains some 300 billion stars. It must have formed stars at a very rapid rate and then stopped. Why? Read more to find out https://t.co/gCmC1VJQnI

See all 5 bright planets in February 🌌

To see the remaining 3 planets, you'll have to get up early. Look east! A string of planets – Mars, Jupiter and Saturn – beautifies the February morning sky. Jupiter is brighter than Mars or Saturn. Read more: https://t.co/F9JGQckVkw 👓

Tonight, let the constellation Orion the Hunter show you the approximate possible position of the hypothetical Planet 9 in the starry sky. As of now, nobody has yet seen this solar system planet, sometimes called Planet X. Read more https://t.co/oTzpi5Duw0

Which spiral arm of the Milky Way contains our sun? 🌌

Our Milky Way galaxy is the island of stars we call home. Our sun is about a third of the way from the center to the visible edge. Read more: https://t.co/ulQpxIiwBj 👓

Image via NASA/ JPL-Caltech/ R. Hurt.

Check out gigantic spiral galaxy UGC 2885. It's 232 million light-years away - 2.5 times wider than our Milky Way - with 10 times as many stars.

This image was created in part as a tribute to astronomer Vera Rubin, a dark matter pioneer.

Read more: https://t.co/HHL18pMzgV 👀