Sunday, February 3, 2013

5 Most Bright Galaxies Viewed from Earth

5 Most Bright Galaxies Viewed from Earth | Apparent magnitude (apparent magnitude) of a star, planet, galaxy or other celestial bodies is the measurement of the brightness or brightness that appears, ie the amount of light received from the object. Terms of magnitude as the scale of brightness appeared over 2000 years ago.

Due to the amount of light received depends on the thickness of the atmosphere in the line of observation to the object, then the visible magnitude is normalized to a value that is the value that will be held outside the atmosphere. Increasingly dim an object, the higher the magnitude seems. Keep in mind that the look is not the same brightness with the brightness of the fact - an extremely bright object may appear quite dim if the object is far enough.

The following are 5 brightest galaxies visible from Earth:

5. Galaxies Centaurus A
Centaurus A (also known as NGC 5128 or Caldwell 77) is |
prominent galaxy in the constellation Centaurus.Jarak this galaxy about 10-16 million years cahaya.Magnitudo this galaxy looked around 7.84.
4. Triangulum galaxy
Triangulum Galaxy (also known as M33 and the Pinwheel Galaxy) is a galaxy located in the constellation Triangulum small Triangulum.Galaksi has a diameter of about 50,000 light-years and a distance of about 3 million light years from this Bumi.Galaksi Apparent magnitude around 6:27.
3. Andromeda galaxy

Andromeda Galaxy (also known as M31 or NGC 224 is one of the galaxies outside the Milky Way that can be seen without the use of tools, as long as seen on a clear night, with no moon and no light pollution. Structure is similar to the Milky Way is a spiral-shaped . distance is about 2.5 million light years. located in the sky is in the northern hemisphere sky, about 41 degrees north of the celestial equator, both observed around September, October, November and are in the Andromeda constellation.

Without tools, this galaxy looks like a little haze in the northern sky, but when observed with binoculars can reveal dim star at the edge of the Andromeda galaxy, Andromeda turns out size can be more than 7 times the diameter of the corner of months. This galaxy contains about one trillion stars, and moving toward the Milky Way at a speed of about 300 km / detik.Magnitudo this galaxy looks around 4:36


2. Small Magellanic Cloud (Small Magellanic Cloud)

Small Magellanic Cloud (SMC) is a kerdil.Memiliki galaxy about 7,000 light-years in diameter and contains several hundred million stars and a total mass of about 7 billion times the mass of a Matahari.SMC kita.Galaksi satellite galaxies of the Milky Way has a distance of about 200,000 light-years from Apparent magnitude earth and has approximately 2.70
1. Large Magellanic Cloud (Large Magellanic Cloud)
Large Magellanic Cloud (LMC) is an irregular galaxy that is close to our galaxy and call scientists Sakti.Berada Way satellite galaxy at a distance of 50 kiloparsecs (160,000 light years), the LMC is the third closest galaxy of the Milky Way after the Sagittarius dwarf spheroidal (~ 16 kiloparsecs) and Canis major Dwarf Galaxy (~ 12.9 kiloparsecs). LMC has a mass equivalent to about 10 billion times the mass of the Sun (1010 solar masses), so that approximately 1/100 as large as the Milky Way, and a diameter of about 14,000 light years (~ 4.3 kpc). LMC has Apparent magnitude around 0.91
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