Light Year: the distance light travels in one year; at the speed of 186,282 miles/second, this amounts to a distance of 5.88 trillion miles. Notice that a light year is a unit of distance, not of time. The nearest star is 4.
We can then speak of "light-seconds," "light-minutes," "light-hours," and "light years" as the distance light travels in each of those time intervals.
We live 15,000 light years from the centre of the galaxy (one light year is 60,000,000,000,000 miles). Even though this sounds like a ridiculously long distance, it is significant only within the context of our own galaxy.
- Diameter: 100,000 light years
- Diameter of the central bulge: 25,000 light years
- Distance of our sun from the GC: 27,000 light years
- Orbital velocity of our Sun around the GC: 135 miles per second ...
Arcturus is the 6th brightest star in the sky and is 35 light years from Earth. Its diameter is 35 times that of the sun and an intrinsic luminosity 80 times that of the sun, Visual Magnitude 0.2, Spectral type K, distance in light years 35-36.
The next nearest star is over 4 light years away.
Distance from Earth (average)
93 million miles (150 Million KM) ...
Located in this region is one of the most intense discrete radio sources, Cygnus A, a "radio galaxy" considered to be some six hundred million light years distant from our sun. In the words of the radio astronomy pioneer John D.
today pluto was demoted and soon i will be the one to release the scorpio; thank you for trusting that my designs are intelligent; i didn't travel many light years here for nothing; welcome to the age of aquarius, everything i do is all fixed ya know; ...
These 27 constellations are known as the 27 Nakshatras, which are 300 to 400 light years away from earth.
Actual Intra-solar system distances are expressed in astronomical Units (q. v.): Ultra-solar system distances in Light Years (q. v.).
Diurnal.
like all nebulous clusters, is associated with weakness and a potential for blindness.[7] Vertex is actually a galaxy, called 'the Andromeda Galaxy' by astronomers. It is the only separate galaxy visible to the naked eye; over 2 million light years ...
 See also: Astrology, Sun, Planet, Virgo, Venus
|
