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A star with a magnitude of +8 is "very dim", and not visible in urban or suburban areas. Only in the darkest rural areas, and only for people with EXCELLENT eyes, would a +8 magnitude star be visible.
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What is the magnitude of the star alioth?
what is the magnitude of the star Alioth in the constellation Ursa Major
Is a high magnitude star more dense than a low magnitude star?
Magnitude is a measure of brightness, there is no relationship with density.
What is difference in a star's apparent magnitude and absolute magnitude caused by?
How far away the star is.
Is it true or false a third-magnitude star is ten times as bright as a fourth -magnitude star?
True.
What is the magnitude of Perseus' brightest star?
Alpha Persei (Mirfak or Algenib) is the brightest star in the constellation of Perseus.It has an apparent magnitude of 1.79 and an absolute magnitude of -4.50
What is the name of the brightest star in Sagittarius with a magnitude of plus?
Epsilon Sagittarii (Kaus Australis) is the brightest star in the constellation Sagittarius with an apparent visual magnitude of +1.8.
How would you calculate how much brighter a magnitude plus 4 star is than a magnitude plus 7 star?
The model for measuring the apparent magnitude (brightness from earth) of a star says that a magnitude 1 star will be 100 times brighter than a magnitude 6 star (just visible with the naked eye). This means that a magnitude 1 star is 2.512 times brighter than a magnitude 2 star, which is 2.512 times brighter than a magnitude 3 star. To jump two places up the scale, use 2.512 x 2.512 as a multiplier, i.e. mag 1 is 6.31 times brighter than magnitude 3 star. To jump three places use 2.512 x 2.512 x 2.512 (or 2.512 cubed) = 15.851. So a magnitude 4 star will be 15.85 times brighter than a magnitude 7 star. Working the other way, a magnitude 7 star will appear 6.3% as bright as a magnitude 4 star (1/15.85 and x 100 to get percentage).
What is a star brightness called?
the brightness of a star is called it's magnitude
What is star's magnitude?
The magnitude is the brightness of the star.
Star A is a first magnitude star. Star B is a sixth magnitude star. Which star is brighter and by how much?
A magnitude 1 star is 100 times brighter than a magnitude 6 star.A magnitude 1 star is 100 times brighter than a magnitude 6 star.A magnitude 1 star is 100 times brighter than a magnitude 6 star.A magnitude 1 star is 100 times brighter than a magnitude 6 star.
What is the magnitude of the complex number 8 plus 2i?
8.2462 (rounded)
What star is called its magnitude?
The magnitude of a star means how bright it is.
What is the magnitude of a star as it appears in the sky called?
The Polar star is the star that is magnitude. This is a Luminosity star.
A first magnitude star is times brighter than a 5th magnitude star?
For apparent magnitudes, a magnitude of zero has the same magnitude as Vega. A first magnitude star is 40 percent as bright and a fifth magnitude star is one percent. So, a first magnitude star is 40 times as bright as a fifth.
What is the distance between an eighth magnitude star and a 9th magnitude star?
The 8th magnitude star is about 2.5 times brighter.
What is a second magnitude star?
A star with a magnitude of 2.0 is a star that is exactly 2.1544 times as bright as a star whose magnitude is 3.0, and (1/2.1544) times as bright as one with a magnitude of 1.0
Is a third-magnitude star ten times as bright as a fourth-magnitude star?
No. The difference in 1 magnitude is the 5th root of 100 which is about 2.512. So a 3rd magnitude star is 2.512 times as bright as a 4th magnitude star.
