n. (Astronomy) any of a class of stars, such as Capella and Arcturus, that have swelled and brightened considerably as they approach the end of their life, their energy supply having changed. Sometimes shortened to: giant Compare supergiant.
What is a white giant?
A very large, very bright star having high mass and low density. The American Heritage® Student Science Dictionary, Second Edition.
What is a yellow giant?
Giant stars with intermediate temperatures (spectral class G, F, and at least some A) are called yellow giants. They are far less numerous than red giants, partly because they only form from stars with somewhat higher masses, and partly because they spend less time in that phase of their lives.
What is a blue giant?
In astronomy, a blue giant is a hot star with a luminosity class of III (giant) or II (bright giant). In the standard Hertzsprung–Russell diagram, these stars lie above and to the right of the main sequence.
Which is hotter giant or white dwarf?
1 Answer. Phillip E. A white dwarf has a higher surface temperature than a red giant star.
Is the Sun a yellow giant?
The sun is classified as a G-type main-sequence star, or G dwarf star, or more imprecisely, a yellow dwarf. Actually, the sun — like other G-type stars — is white, but appears yellow through Earth's atmosphere.
What is supernova blast?
A supernova is the biggest explosion that humans have ever seen. Each blast is the extremely bright, super-powerful explosion of a star. A supernova is the biggest explosion that humans have ever seen. Each blast is the extremely bright, super-powerful explosion of a star.
What does the term red giant mean?
A red giant is a star in its death stages. It has slowly swollen up to many times its original size. Once at the red giant stage, a star might stay that way for up to a billion years.
How hot is a white star?
Color and Temperature
| Table 1. Example Star Colors and Corresponding Approximate Temperatures | ||
|---|---|---|
| Star Color | Approximate Temperature | Example |
| Blue | 25,000 K | Spica |
| White | 10,000 K | Vega |
| Yellow | 6000 K | Sun |
How hot is a red star?
3,500 K Red stars are cooler than the sun, with surface temperatures of 3,500 K for a bright red star and 2,500 K for a dark red star. The hottest stars are blue, with their surface temperatures falling anywhere between 10,000 K and 50,000 K.