Many parameters are used to describ

Many parameters are used to describe a star. One of them is its temperature, which can be determined by
simple observation; the color of a star and its temperature are related. Once the color of a star is identified,
its temperature can be calculated through the use of scientific principles such as Wien‟s Law.
There are different types of stars in the universe. For our purposes, we can classify them into two categories:
variable and binary. Variable stars are those which show some degree of variability in their luminosity and
magnitude. Luminosity refers to the amount of energy radiated by a star, while magnitude refers to its
brightness. At time the degree of variability may be high, requiring a telescope with an equally high light-
gathering power. This can be achieved by using a lens of large diameter, such as that of a reflecting
telescope.
Binary stars are those found in pairs that revolve around a common center. The closest star to the sun,
Proxima Centauri, is a binary star. To observe a binary star, the resolving power of a telescope – its ability to
distinguish between two close objects having a small angular separation – must be very high.
Stellar astronomy is possible for a everyone, well beyond mere looking at the sky with the naked eye in
order to identify constellations. With two basic of telescopes and rudimentary knowledge, much exploration
can be achieved.

Kết quả (Anh) 2:

Many parameters are used to describe a star. One of Them is nó temperature, mà can be quyết by
simple observation; the color of a star và temperature are related. Once the color of a star is Identified,
temperature can be calculated through nó dùng scientific Principles như Wien 's Law.
There are different types of stars in the universe. For our Purposes, WE CAN classify added Into two categories:
variable and binary. Variable stars are những show some degree of variability đó trong luminosity and
magnitude. Refers to the amount of Luminosity energy radiated by a star, while magnitude Refers To nó
brightness. At the degree of variability sewing time be high, requiring a telescope with an Equally high light-
gathering power. This can be Achieved by using a lens of large diameter, như mà of a reflecting
telescope.
Binary stars are found in pairs những Revolve around a common center có. The closest star to the sun,
Proxima Centauri, is a binary star. To observe a binary star, the resolving power of a telescope - nó ability to
Distinguish the between two close objects having a small angular separation - Phải very high.
Stellar astronomy is im possible for a everyone, well beyond mere looking at the sky with the naked eye in
order to Identify constellations. With two basic and rudimentary knowledge of telescopes, much exploration
can be Achieved.