The heavens, pt. 2: various forms of nebulae
Posts tagged space.
Rosette, NGC2244 with NB filters 11h20 exposure (by Trois_Merlettes)
It’s time to make history, and there will be history made tonight. Every time you’ve opened your mouth, took a step or any other thing we take for granted (or not), you’ve made history.
As you’ve probably guessed, this is a picture of Mercury.
We’ve never gotten really close up to Mercury,…
One of the best amateur Astronomy pictures announced.
Description: “Goblin Grin”.
Looking like a ghoulish Halloween mask in this winning photo, the so-called N44 superbubble shines in vibrant color thanks to Manuel Mejas from Argentina, who processed raw data from the Very Large Telescope to create the scene.
Two of its apparent planets share the same orbit around their star. If the discovery is confirmed, it would bolster a theory that Earth once shared its orbit with a Mars-sized body that later crashed into it, resulting in the moon’s formation.
The two planets are part of a four-planet system dubbed KOI-730. They circle their sun-like parent star every 9.8 days at exactly the same orbital distance, one permanently about 60 degrees ahead of the other. In the night sky of one planet, the other world must appear as a constant, blazing light, never fading or brightening.
Jupiter’s moon Io floats above the cloudtops of Jupiter. This image is deceiving: there are 350,000 kilometers - roughly 2.5 Jupiters - between Io and Jupiter’s clouds. Io is about the size of our own moon.
You can watch the planets, moons and asteroids of our solar system move in proportional time with this awesome visualiser. Set the date and speed, as well as the model (Copernican or the pre-Renaissance Tychonian/geocentric model) and watch the physics happen. Unfortunately, it doesn’t depict the degradation of orbits over time, nor does the sun explode when set a few billion years in the future. Still cool, though!