7 stunning images of animal-shaped nebulae captured by NASA
The Cat's Eye Nebula, also known as NGC 6543, is a visual "fossil record" of the dynamics and late evolution of a dying star. The Horsehead Nebula is a dark cloud of dust and gas in the constellation ...
BBC2 年
Quiz: How to find the constellations
What are constellations and asterisms? Quiz - Can you guess the constellation? Top tips for stargazing How to spot famous constellations and asterisms The Plough Ursa Major Ursa Minor Cygnus - a ...
来自MSN6 个月
Why aren't the constellations always drawn the same way?
No original copy of Almagest has survived, so we don't know how he connected the stars to form shapes. By the 16th century, European explorers were adding new constellations to fill in their charts.
Astronomy on MSN5 个月
Where did the constellation come from?
By the latter half of the 19th century, star charts and atlases featured loosely fabricated patchworks of constellations with ...