Pregunta | Respuesta |
Stars have many characteristics to differentiate them. |
-Colour
-Size
-Distance
-Temperature
-Brightness
Image:
R (1) (binary/octet-stream)
|
The lowest temperature of stars corresponds to a colour. |
The coldest star is red with temperature
<3500 K.
Image:
R (2) (binary/octet-stream)
|
Generally, stars have colours that correspond to its surface temperature. | The hottest star is blue with temperature >25000 K. |
The life cycle of a Neutron star | Nebula -> Large star -> Red giant -> Supergiant -> Supernova -> Neutron star |
The brightness of stars depends on certain characteristics of stars. | size, distance and surface temperature. |
The brightest stars in the sky. | Sirius and Rigel. |
Forming a Red giant star. | -In a star, a lot of heat is generated. -The heat goes to the outermost layer of the star, causing the hydrogen within to burn. - The star will start to expand and appear red in colour. |
The star formed from Super-large star. | A black hole is formed when the original star is a Super-large star. |
Stars have different sizes. | Sizes of stars in ascending order: Dwarf -> Giant -> Supergiant |
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