Q-1) what are constellations?
Q-2) How constellations are formed?
Q-3) what is a nebula?
Q-4) why the universe is dark?
No spam
No irrelevant answers
Answers
A-1) A constellation is a group of stars that appears to form a pattern or picture like Orion the Great Hunter, Leo the Lion, or Taurus the Bull. Constellations are easily recognizable patterns that help people orient themselves using the night sky. There are 88 “official” constellations.
A-2) Constellations are formed of bright stars which appear close to each other on the sky, but are really far apart in space. ... Because of the rotation of the Earth and its orbit around the Sun, we divide the constellations into two groups. Some constellations never rise nor set, and they are called circumpolar.
A-3) A nebula is a distinct body of interstellar clouds. Originally, the term was used to describe any diffused astronomical object, including galaxies beyond the Milky Way.
A-4) still scientists have not found the answer
Explanation:
1. A constellation is a name given to a group of stars in the sky that make up a certain pattern. Sometimes this pattern is imaginary. When the sky is clear these stars can be seen from Earth without the use of a telescope. ... Constellation is a Latin word meaning “set with stars”
2. Constellations are formed of bright stars which appear close to each other on the sky, but are really far apart in space. ... Because of the rotation of the Earth and its orbit around the Sun, we divide the constellations into two groups. Some constellations never rise nor set, and they are called circumpolar.
3.A nebula is a formation in space which is constituted mostly of helium, dust, and other gases in various concentrations.
4. As such, stars haven't existed long enough to fill the Universe with their light, which is also stretched and weakened by the cosmic expansion. The result is a Universe as black as pitch.