What might a low or medium star become when it dies?
THE DEATH OF A LOW OR MEDIUM MASS STAR After a low or medium mass or star has become a red giant the outer parts grow bigger and drift into space, forming a cloud of gas called a planetary nebula. Neutron stars are the remains of high-mass stars. The most massive stars become black holes when they die.
What type of star has a high temperature and a low luminosity?
White Dwarf
What temperature 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 |
Why are red stars the coolest?
Answer 5: Red stars are cooler. They are red because they emit red light, which is lower in energy than blue light. Energy in turn, is proportional to temperature, which means that higher energy corresponds to higher temperatures.
Why do stars twinkle red?
The atmosphere splits or “refracts” the star’s light, just as a prism splits sunlight. So that’s where Capella’s red and green flashes are coming from … not from the star itself … but from the refraction of its light by our atmosphere. The reason is simply that it’s a bright star.
Why do stars appear red?
As the light from the stars comes through the earth’s atmosphere, they appear to be twinkling. This makes the cooler stars appear red and the stars with the higher temperatures appear blue or white. From cool to hot, the colors can appear red, orange, yellow, green and blue.
What star looks red?
Antares
Do stars twinkle?
As light from a star races through our atmosphere, it bounces and bumps through the different layers, bending the light before you see it. Since the hot and cold layers of air keep moving, the bending of the light changes too, which causes the star’s appearance to wobble or twinkle.
Do satellites shine like stars?
Yes, we can see satellites in particular orbits as they pass overhead at night. Viewing is best away from city lights and in cloud-free skies. The satellite will look like a star steadily moving across the sky for a few minutes. Satellites do not have their own lights that make them visible.