Nebula are often found in the space between stars, known as the interstellar medium. On average, this region contains only around one atom per cubic centimetre. However, in certain places the density can be significantly higher than this — high enough to become visible through a telescope....
In the case of a planetary nebula, the formation of this deep sky object occurs when a white dwarf star explodes during asupernova. The explosion sends interstellar materials into space that can eventually form into a nebula. Stellar objects that can be called Nebula come in four major classes...
Nebulae can vary hugely depending on how they were created, but many of the clouds are strongly related to the lifecycles of stars. Some are created when a star dies; others allow them to be born. One nebula, of a type known as a planetary nebula, is called the Boomerang Nebula and is...
If you want to look directly at a solar eclipse, you're going to need some protective eyewear. You can view a total solar eclipse with your bare eyes, but only when the moon completely covers the face of the sun. And if you're really gung ho about looking up at the sun without spe...
The color of a planetary nebula is determined by the type of star that it is formed from. The most common type of star is a red giant, which will...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your ...
What is a star whose brightness changes called? What color is Pollux? What can a red giant star become? What color are the rings of Uranus? What color is Charon? What is a dark star? What is the brightest planet? What is the brightest star in Ursa Major?
The sun's outer layers will continue to cool and spread away from the star as a planetary nebula as what was once its core also reduces in temperature. The core will become a smoldering white dwarf, the final stage of the sun's existence, with amass around half that of the sun todayan...
Illustrated guide: What can you expect to see with different sized telescopes at different conditions: Stars, Planets, Moon, nebuale and other astronomical objects
A WHITE DWARF is a small, dense, dying star that releases an expanding gas shell called a PLANETARY NEBULA. Stars the size of the Sun will eventually become white dwarfs. Scientists think that white dwarfs become BLACK DWARFS. A black dwarf star emits no light. (There are no known black ...
a location that's too difficult for cars to reach, good luck waiting for a speedy rescue — the profoundly hot air is so thin that it prevents rescue helicopters from flying. As such, heatstroke deaths can and do happen fairly regularly in the area, especially since the condition can be ...