Sirius is actually a binary star system.
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The Andromeda galaxy (or M31) has an estimated luminosity of 26 billion times the luminosity of the Sun.. or in other words, about 25% brighter than the Milky Way; however, some intergalactic dust tends to obfuscate our view and some estimates are higher.
Orion is a constellation, not a single star. The constellation contains a very large number of stars and other cosmic objects which have no astrophysical relationship with one another. It is simply that they are located in such direction, and are so far away, that they appear to move together. The brightest is RIgel, with an apparent magnitude of 0,18, the seventh brightest star. Others cannot even be seen from earth based telescopes.
Polaris has a luminosity of 2,200 solar luminosities.
Cepheids have a certain relationship between their period, and their absolute luminosity. Thus, their absolute luminosity can be determined. Comparing this with their apparent luminosity allows us to calculate their distance.Cepheids have a certain relationship between their period, and their absolute luminosity. Thus, their absolute luminosity can be determined. Comparing this with their apparent luminosity allows us to calculate their distance.Cepheids have a certain relationship between their period, and their absolute luminosity. Thus, their absolute luminosity can be determined. Comparing this with their apparent luminosity allows us to calculate their distance.Cepheids have a certain relationship between their period, and their absolute luminosity. Thus, their absolute luminosity can be determined. Comparing this with their apparent luminosity allows us to calculate their distance.
A solar luminosity is equal to the current luminosity of the Sun, which is 3.839 × 1026 W, or 3.839 × 1033 erg/s.So dividing one solar luminosity with the Suns luminosity gives 1.Also it is a lot easier talking about a luminosity of 1 rather than 3.838 x 1026 W, the same way astronomers use 1 AU to mean 150,000,000km.
Both the absorption and the luminosity of a blackbody in equilibrium increase in magnitude with increasing temperature, and the spectral distribution of the luminosity increases in frequency (decreases in wavelength).
The star that is hotter will have a higher luminosity.
He applied the period-luminosity relation to Cepheid variables.
I was enthralled by the luminosity of the deep water jellyfish.
Andromeda means "ruler of men".
A star's luminosity is measured according to the relevance to the sun. Basically for example, if a star is 8,300 degrees Celsius and has a luminosity of 0.001; the luminosity is compared to the sun.
Michael Emerson is in the Luminosity commercial.
Rigel has a luminosity of 117,490 solar luminosities.
Polaris has a luminosity of 2,200 solar luminosities.
Because it is located in the Andromeda Constellation.
The absolute luminosity is about 3.839×1026 W, or 3.839×1033 erg/second. The comparative luminosity of an astronomical object is based on the Sun, so it has a relative luminosity of 1.
The stars in the night sky shine with a remarkable luminosity.
To determine a star's luminosity is from size and temperature.
The term Andromeda can mean several different things. In mythology, Andromeda is the daughter of Cassiopeia and Cepheus. Andromeda also can refer to the Andromeda Galaxy, which is 2.5 million light years away from us. Andromeda is also a television series and there's a game called Andromeda. Andromeda can refer to any of these things.