... count them at http://www2.potsdam.edu/islamma/Phys335constellations.htm
or
http://www.absoluteastronomy.com/topics/List_of_stars_by_constellation
How bright? Andromeda is made up of 100 stars!
Light from the Pleiades star cluster, also known as M45, takes approximately 440 years to reach Earth. This means that when we observe the cluster, we are seeing it as it was 440 years ago. The Pleiades is a prominent feature in the night sky and is located about 444 light-years away from our planet.
Abell 2029 is just over a billion light years from us.
Any unit of length can be used; for example the official unit of length, which is the meter. However, to avoid having to write large numbers, the following three units are often used in astronomy: (1) The astronomical unit, the average distance between Earth and the Sun. Used mostly for measurements within the Solar System. (2) The light-year; the distance light travels in a year. Approximately 9.5 x 1015 meters. (3) The parsec. A star at this distance would appear to have a parallax of one arc-second. Equal to approximately 3.26 light-years.
The star Mintaka is approximately 916 light years away from Earth.
Arcturus is approximately 37 light years away from Earth.
hercules is 27.4 light years away from Earth
hercules is 27.4 light years away from Earth
The M13 star cluster, also known as the Great Globular Cluster in Hercules, is located approximately 25,100 light-years away from Earth. It is composed of hundreds of thousands of stars densely packed together in a spherical shape.
The Pleadies star cluster is about 400 light years from Earth.
The star cluster, M 35 is about 2800 light years from Earth.
Matariki is 450 light years and 135parsecs away from the earth
The article on the Pleiades in Wikipedia states that the star cluster is approximately 135 parsecs or 440 light-years.
Hercules and all the other constellations are made up of dozens of stars, all of which are different distances from Earth. They only appear in the same plane from our "galactic neighborhood".
440 light-years. I would say this is the current estimate. There is always some error in those distance measurements.440 light-years. I would say this is the current estimate. There is always some error in those distance measurements.440 light-years. I would say this is the current estimate. There is always some error in those distance measurements.440 light-years. I would say this is the current estimate. There is always some error in those distance measurements.
M13 is a dense cluster of stars located in the constellation Hercules, about 25,000 light-years away from Earth. It contains hundreds of thousands of stars and is one of the brightest globular clusters in the night sky. It is estimated to be around 11.65 billion years old.
Matariki is a star cluster located around 440 light-years away from Earth.
1.65 x 1021 miles. It's mean distance is actually 321 million light years which would give an answer of 1.89 x 10 21 miles.