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What has absolute magnitudes of one or less?
Objects with absolute magnitudes of one or less are extremely bright, and typically include objects like the Sun, the Moon, and certain major planets like Venus and Jupiter when viewed from Earth. These objects appear very bright in our sky because they reflect or emit a lot of light towards us.
Spica and Rigel have similar surface temperatures but their absolute magnitudes are different why is this?
Spica has a surface temperature of 22,400K and an absolute magnitude of -3.55Rigel has a surface temperature of 11,000K and an absolute magnitude of -6.7So the question is incorrect.
What type of star has high absolute magnitudes and high temperatures?
supergiant
How much brighter are supergiants than giants?
According to Wikipedia giants have absolute magnitudes around 0 to -1 while supergiants have absolute magnitudes around -5 so they are 50-100 times brighter (5 magnitudes difference equals 100 times brighter).
When ones whose numerator is less than its denominator?
It is a rational number which is less than 1. If the absolute value of the numerator is less than the absolute value of the denominator then the fraction is a proper fraction.
The radius of Betelgeuse varies by about 60 percent within a period of 3 years If the stars surface temperature remains the same what is the ratio of the two absolute magnitudes?
If the radius of Betelgeuse varies by 60% within three years, its luminosity will also change proportionally. Since absolute magnitude is related to luminosity, the ratio of the two absolute magnitudes will be the square root of the ratio of the luminosities. So, the ratio of the two absolute magnitudes will be approximately 1.22.
How 2 stars could have the same apparent magnitude but different absolute magnitudes?
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Does a red giant or a white dwarf star have greater absolute?
Red giants have typical absolute magnitudes which are 10-15 magnitudes below white dwarfs, which means that the red giants are 10,000-1,000,000 times brighter, after due allowance for distance.
Is it possible for two regular stars to have the same absolute magnitude but different apparent magnitudes?
Yes, if the matter surrounding one star is more dense than that surrounding the other it would appear to be less bright.
What is the absolute magnitude of cassiopeia?
Cassiopeia is a constellation, not a single star, so it does not have a specific absolute magnitude. The stars within the constellation Cassiopeia have a range of absolute magnitudes depending on their distance and luminosity.
What is the absolute and apparent magnitude of a giant star?
Magnitudes require distance and luminosity. Therefore a specific star is required.
How can 2 stars of the same apparent magnitude could have different absolute magnitudes?
The less luminous one is closer to the observer, just as a candle in the same room can seem as bright as a sodium vapor lamp down the street.
