An average dwarf galaxy is small in diameter.
The dwarf galaxy is about 8,000 miles in diameter.
600,000 trillion.
some 100,000-120,000 light-years in diameter, which contains 100-400 billion stars
Its mean diameter in miles is around 525 miles (844km). Astronomers are unsure of its shape as it is so small and far away, so it remains a dwarf planet candidate. If it turns out that it is approximately spherical in shape, then it is likely to be classified as an official dwarf planet.
Ceres (designated as 1 Ceres) has an average diameter of about 950 km (590 miles). It is by far the largest object in the asteroid belt. It is, however, the smallest dwarf planet. By comparison, Pluto has a diameter of about 2300 km (1430 miles).
A black dwarf is not a planet; it is the remnant of a long dead star that has cooled. A black dwarf would range from about 7,000 to 17,000 miles in diameter.
Ceres (designated as 1 Ceres) has an average diameter of about 950 km (590 miles). It is by far the largest object in the asteroid belt. It is, however, the smallest dwarf planet. By comparison, Pluto has a diameter of about 2300 km (1430 miles).The asteroid is slightly oblate, but apparently not because of rotation. Its polar diameter is only about 909 km (565 mi) while its equatorial diameter is about 975 km (606 mi). NASA lists the "average" diameter as 930 km (580 mi).
Here are the planets diameter in kilometers. Mecury:4,880 Venus:12,104 Earth:12,756 Mars:6,794 Jupiter:142,984 Saturn:120,536 Uranus:51,118 Neptune:49,532 Pluto:2,274 Hope this helps!
Mars is 6,792 km or 4,220 miles at its equator.
Ceres, a dwarf planet located in the asteroid belt between Mars and Jupiter.
The diameter of Mars is 6785 kilometers.
Roughly 1,000 miles in diameter