What if our sun was a red dwarf?
The goldilocks zone around a red dwarf is much closer and here on Earth we would likely freeze. Trying to live around this new red dwarf star would also mean that we had more intense magnetic fields and violent solar flares to deal with. Red dwarfs stars are smaller and cooler than our relatively average star, the Sun.
What are the main types of stars?
The 7 Main Spectral Types of Stars:
- O (Blue) (10 Lacerta)
- B (Blue) (Rigel)
- A (Blue) (Sirius)
- F (Blue/White) (Procyon)
- G (White/Yellow) (Sun)
- K (Orange/Red) (Arcturus)
- M (Red) (Betelgeuse)
What is the most important characteristic of a star?
Of these characteristics, stellar mass is the most important characteristic. The mass of a star determines things, such as how quickly a star will consume its stellar fuel through the fusion process to the star’s final ending when it has used all of its fuel.
What is the main component of a star?
Basically, stars are big exploding balls of gas, mostly hydrogen and helium. Our nearest star, the Sun, is so hot that the huge amount of hydrogen is undergoing a constant star-wide nuclear reaction, like in a hydrogen bomb.
Do all stars make the same elements?
No, not all elements are found in every star. In our Sun, 67 chemical elements have been detected from solar spectra and there may be more in small enough quantities to prevent detection. Most stars, like our Sun, are about 70% hydrogen and 28% helium by mass.
What does the Colour of a star indicate?
The color of a star indicates its temperature. Blue-white stars are much hotter than the Sun, whereas red stars are cooler.
Are all stars like the sun?
Most stars are very similar to our sun. In fact the sun is a pretty normal kind of star. It’s much brighter than the other stars because it is close by. Even the closest star (other than the sun) is very far away.
What color is the sun NASA?
But, as can be seen in the image above, it emits most of its energy around 500 nm, which is close to blue-green light. So one might say that the sun is blue-green! This maximum radiation frequency is governed by the sun’s surface temperature, around 5,800K.