црвенe звездe

црвенe звездe

Stars with low temperatures.

Hydrogen-burning red stars are small and use their available fuel slowly. These low-mass stars last for tens to hundreds of billions of years — much longer than hotter-burning stars. Some red stars are very bright, which means they are also very large. These giants, or supergiants, are stars nearing the ends of their lives. Betelgeuse (beta Orionis) is an example of a red supergiant star.

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Valdkond/domeen: Physics
Category: Astronomy
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Млечни Пут

Physics; Astronomy

The specific galaxy to which the Sun belongs, so named because many of its stars appear as a milky band of light extending across the sky overhead, on a clear, dark night. The ...

спирална галаксија

Physics; Astronomy

A galaxy made up of a disk, spiral arms, and a bulge at its center. The size of the disk and the bulge vary. The galaxy is composed of a mixture of old and young stars, as well as ...

жута звезда

Physics; Astronomy

Stars that live for a medium length of time (about 10 billion years) and are neither extremely cool nor hot. Earth’s Sun is an example of a yellow star.

Венов дијаграм

Physics; Astronomy

A diagram consisting of two or more overlapping circles. It is often used in mathematics to show relationships between sets. In other applications, Venn diagrams are useful for ...