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However, it does not give a measure of the intrinsic brightness of the object.

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In the field of Geology, dating is an important term as it is a technique through which evaluation regarding the age and period about the fossil, remains, the archaeologists do valuables and artifacts.

At first, there were not many methods of dating were available, but now with advancement in the technology, we mainly have two types of techniques to ascertain ages of ancient belongings.

He classified stars based on how bright they appear in the sky.

Modern astronomers use a more mathematical approach to this, but the concept has not changed over the time of two millennia. Apparent magnitude is defined as the brightness of a celestial object as measured by an observer on earth, in the absence of the atmosphere.

One such tool is the concept of the magnitude, which Greek astronomer Hipparchus used about 200 years ago.

It consists of an apparent magnitude scale based on pure observation.

• Apparent magnitude is the brightness of an astronomical body as seen from earth, while absolute magnitude is the apparent magnitude of a body as seen from 10 parsecs or 32.6 light years from the earth.

• The absolute magnitude is an intrinsic measurement, but apparent magnitude is not.

Comparing the magnitude of the astronomical bodies at a fixed distance allows the astronomers to rule out the astronomical extinction and the varying distance to the bodies, and consider only the amount of light coming from the body.

What is the difference between Absolute and Apparent Magnitude?

As the word relative tells that defining the object with respect to the other object, it will be pertinent to mention here that actual numerical dates of the rocks or sites are not known in this type of dating.

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