Which of these stars has the greatest surface temperature? A 30 Msun main sequence star has the greatest surface temperature.
Which of these stars has the greatest surface temperature?
Spectral types are a measure of the surface temperatures of stars and are letter designations: O, B, A, F, G, K, and M. Type O stars have the highest surface temperatures and can be as hot as 30,000 Kelvins.
Which star has the highest surface temperature quizlet?
Which star has the highest surface temperature? Spica, with a spectral type of B1 (the closest to O in OBAFGKM), has the highest surface temperature.
Which are the hottest stars quizlet?
Blue or white are the hottest and red is the coolest. Our own star, the Sun, is nearly in the middle of both the temperature and luminosity scales relative to other stars.
Which type of star has the greatest luminosity?
These are the supergiants, the largest of stars with extremely high luminosities. A red supergiant such as Betelgeuse would extend beyond the orbit of Jupiter if it replaced the Sun in our solar system.
Which star is least hottest?
Spectral types are named with a letter. The seven main types are M, K, G, F, A, B and O. M stars are the coldest stars and O stars are the hottest.
Which star has the greatest size?
The largest known star in the universe is UY Scuti, a hypergiant with a radius around 1,700 times larger than the sun. And it’s not alone in dwarfing Earth’s dominant star.
Which color stars have the highest surface temperature group of answer choices?
The hottest stars are the blue stars. A star appears blue once its surface temperature gets above 10,000 Kelvin, or so, a star will appear blue to our eyes.
What star has a temperature of 6000K?
The hottest stars emit much of their energy in the ultraviolet and appear to be electric blue, like an arc-welder’s torch. The star Sirius is a good example of a blue star.
…
Colors and Temperatures.
| Surface Temperature | Star | Color |
|---|---|---|
| 6000K | Sun | Yellow-white |
| 4000K | Arcturus | Peach |
| 3000K | Betelgeuse | Red |
Which color stars have the coolest surface temperature quizlet?
Consider the four stars shown following. Rank the stars based on their surface temperature from highest to lowest. (Notice that temperature is related to color, and follows the order of the colors in the rainbow: Blue (or violet) stars are the hottest, while red stars are the coolest.)
What is the general relationship between temperature and star brightness quizlet?
What is the relationship between luminosity and temperature for stars on the Main Sequence? The brighter it is, the hotter it becomes.
What star color is the coldest?
Stars have different colors, which are indicators of temperature. The hottest stars tend to appear blue or blue-white, whereas the coolest stars are red.
What is the general relationship between temperature and star color?
The other major factor effecting a star’s color is its temperature. As stars increase in heat, the overall radiated energy increases, and the peak of the curve moves to shorter wavelengths. In other words, as a star becomes hotter, the light it emits is pushed further and further towards the blue end of the spectrum.
What color is the hottest star?
White stars are hotter than red and yellow. Blue stars are the hottest stars of all. Stars are not really star-shaped.
Which star is most like the sun?
At a distance of twelve light years from Earth and visible to the naked eye in the evening sky, Tau Ceti is the closest single star that has the same spectral classification as our Sun.
What is the brightest star ever?
Sirius, also known as the Dog Star or Sirius A, is the brightest star in Earth’s night sky. The name means “glowing” in Greek — a fitting description, as only a few planets, the full moon and the International Space Station outshine this star.