Brightness and magnitude of stars

If you look up to the sky you see stars with different brightness. Some stars are very bright, while others are just faint. This is partially because some stars are more luminous than others, but also because some stars are much further away than others. For an example have a look at the two pointers of the Southern Cross for instance. Alpha Centauri (the one the furthest from the Cross) seems brighter than Beta Centauri, also called Hadar (the one closest to the Cross). The reason for this is its proximity; it is in fact our closest stellar neighbour. The double stars in Beta Centauri are much more luminous than the triple stars in Alpha Centauri, but they are about 120 times further away. This causes the star to look less bright because the light is spread out over a much larger area as it travels away from the star.

Absolute Magnitude
To compare how stars would look if they were all at the same

Saturn, Lord of the rings

The planet Saturn can be seen beautifully now in the night sky. Saturn is one of the most fascinating planets because of its rings. Through our 10 inch telescope you can clearly see the rings sticking out on both sides of the planet. Some of the larger moons can be seen as well. Saturn is one of the gas planets and the second largest planet in our solar system, after Jupiter. The planet is about Milky Way. You can see Scorpio beautifully and Sagittarius is rising. The Southern Cross is getting lower now and Arcturus in the constellation Bootes is one of the brightest stars in the sky. It is a great time of year if you love astronomy like us.