0
It traces to the Greek astronomer Hipparchus (or the Alexandrian astronomer Ptolemy-references vary). He classed stellar objects on how bright they appeared - the brightest were "magnitude 1", the next brightest were "magnitude 2", on down to "magnitude 6", the faintest he could see. Thus the scale is roughly 2000 years old.
What else can I help you with?
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.
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 a second magnitude star?
A second magnitude star is a star that is relatively bright in the night sky, typically with an apparent visual magnitude between 1.5 and 2.5. These stars are easily visible to the naked eye and are brighter than third magnitude stars but dimmer than first magnitude stars.
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.
What is a regulus mark?
a first-magnitude star in the constellation Leo
What part of a star is called magnitude?
Magnitude refers to the brightness of a star. There are two main types: apparent magnitude, which is how bright a star appears from Earth, and absolute magnitude, which measures a star's intrinsic brightness.
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.
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 property classifies the star based on its temperature?
The temperature.
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.
