Search results
Results From The WOW.Com Content Network
The Milky Way is approximately 890 billion to 1.54 trillion times the mass of the Sun in total (8.9 × 10 11 to 1.54 × 10 12 solar masses), [ 7][ 8][ 9] although stars and planets make up only a small part of this. Estimates of the mass of the Milky Way vary, depending upon the method and data used.
List of nearest galaxies. This is a list of known galaxies within 3.8 megaparsecs (12.4 million light-years) of the Solar System, in ascending order of heliocentric distance, or the distance to the Sun. This encompasses about 50 major Local Group galaxies, and some that are members of neighboring galaxy groups, the M81 Group and the Centaurus A ...
The Sun is part of one of the Milky Way's outer spiral arms, known as the Orion–Cygnus Arm or Local Spur. [269] [270] It is a member of the thin disk population of stars orbiting close to the galactic plane. [271] Its speed around the center of the Milky Way is about 220 km/s, so that it completes one revolution every 240 million years. [268]
Size (left) and distance (right) of a few well-known galaxies put to scale. The following is a list of notable galaxies.. There are about 51 galaxies in the Local Group (see list of nearest galaxies for a complete list), on the order of 100,000 in the Local Supercluster, and an estimated 100 billion in all of the observable universe.
Mars rises around 4 a.m. early on but by 3 a.m. late. Jupiter rises around 5 a.m. in early July but rises around 3 a.m. later in the month. Watch the Moon pass a couple of bright stars and planets ...
Distance: 4.2465 ± 0.0003 ly ... through the Milky Way at a distance from the Galactic ... American Observatory appear to rule out a Jupiter-sized planet with an ...
This planet is located 64 light-years from Earth, considered in our neighborhood within the Milky Way galaxy, in the constellation Vulpecula. A light-year is the distance light travels in a year ...
The asteroid belt is the smallest and innermost known circumstellar disc in the Solar System. Classes of small Solar System bodies in other regions are the near-Earth objects, the centaurs, the Kuiper belt objects, the scattered disc objects, the sednoids, and the Oort cloud objects. About 60% of the main belt mass is contained in the four ...