No. A light-year is a measurement. A light year is a distance measurement based on how far light travels in a year.
It is approx 0.000015 light years.
Lightyears
Sorry, but this doesn't make sense! For a start, 'nebulae' is plural. And Cygnus isn't in a nebula. Cygnus (like all the constellations) is just a name given to a region of sky that appears to resemble some object or other from the arrangement of its stars. None of the stars in a given constellation usually have any connection with the others. They just lie in the same general direction. Deneb, the brightest star in Cygnus, is over 1000 lightyears away, but close to it (in the sky!) we have 61 Cygni, which is one of the closest stars to us, at about 11 lightyears. A constellation is a purely human construct, like (say) a country with its borders.
The stars in any constellation all tend to be different distances from us. They just appear as a pattern as we look at them. Of the stars in Gemini, the nearest is 33.7 lightyears away. That is about 318,826,616,925,973 kilometres or 198,109,675,076,288 miles away.
Here's the example that illustrate what you just asked. I will be using this example from astronomy. When you look up the sky to the stars, you are literally seeing into the past. The distance from you to the star you are looking at is x lightyears away. Lightyear is distance light travles in 1 year. So if a star is, say 100 lightyears away from you, then you are seeing the state of the star that much time ago.
The closest (DX Cnc) is 11.8 lightyears away. The farthest is nearly 4000 lightyears away.
Milky Way.
spica is the brightess star in virgo. it is blue. 200 lightyears away. it is 2400k
The stars at the two ends, Alnitak and Mintaka are at a distance of 387 and 380 parces (1262 and 1239 lightyears) respectively. Due to the relatively small angular separation, the distance between the stars is approx 7 parsecs = 23 lightyears.
No. None of the stars you see at night are in the solar system. They are lightyears beyond it.
A star emits light, this light travels through empty space to Earth. Note that stars are extremely bright; stars are similar to our Sun.
it is 0.0000000406 lightyears away, it is pretty close.
Ten Thousand Lightyears was created in 1982.
The Sun: yes, a vast majority of the solar system's mass is there. Other stars: no, the sun is the only star in our system. The closest other is over 4 lightyears away.
Astronomical measurement uses stars as a point of reference. By measuring the position of stars relative to each other or to points on the celestial sphere, astronomers can determine distances, locations, and other important parameters in the universe.
No. Definitely not. Stars are lightyears away (1 lightyear=6 trillion miles). The normal cruising altitude of aircraft are about 5 miles high (25,000-30,000 feet). Even the space shuttle does not come anywhere close to the stars.
space means a outside cold world lightyears and lightyears away in the deep space