some 100,000-120,000 light-years in diameter, which contains 100-400 billion stars
An average dwarf galaxy is small in diameter.
600,000 trillion.
The dwarf galaxy is about 8,000 miles in diameter.
The Andromeda Galaxy is approximately 220,000 light-years in diameter, which is equivalent to about 1,294,833,160,000,000 miles.
The Tadpole Galaxy, also known as UGC 10214, has an estimated diameter of about 280,000 light-years. This translates to roughly 1.6 million trillion miles. The galaxy is notable for its long tidal tail, which is a result of gravitational interactions.
Yes, it's diameter is 30,685 miles, it is also a gas giant.
Mars has an average diameter of about 4,220 miles.
Mercury has a diameter of 4,878 km, which makes it the smallest planet in our Solar System. For a comparison, the diameter of the Moon is 3,473 km.
The Universe may hold over a trillion (1,000,000,000,000) galaxies. A galaxy might have several billion stars. The planetary portion of the Solar System is several billion miles in diameter; no star is that big, although some red giants would reach the Earth if they were centered on the Sun.
In Jan 1987, John Cormedy of Dominion Astrophysical Observatory in Canada discovers the balck hole in Galaxy Andromeda and estimated that the diameter of black hole in Andromeda Galaxy is 10 million times as massive as the Sun.
The diameter of Mars is approximately 6,779 km (4,212 miles), making it about 0.532 times the diameter of Earth.
Cordelia, one of the moons of Uranus, has an average diameter of about 40 kilometers (25 miles).