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The magnitudes of very bright stars are represented using the apparent magnitude scale, which is a logarithmic scale. In this system, lower numerical values indicate brighter stars, with some of the brightest stars having negative magnitudes. For example, a star with a magnitude of -1 is brighter than one with a magnitude of +1. This scale allows astronomers to compare the brightness of celestial objects effectively.
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When was The Stars in the Bright Sky created?
The Stars in the Bright Sky was created in 2010.
What is A star's level of brightness as viewed by the unaided eye?
A star's brightness as viewed by the unaided eye is measured using its apparent magnitude, which quantifies how bright a star appears from Earth. The scale is logarithmic, meaning a difference of 5 magnitudes corresponds to a brightness factor of 100. Stars with an apparent magnitude of around 6 or lower can typically be seen without telescopes, while brighter stars have lower magnitude values. For example, the brightest stars in the night sky, like Sirius, have apparent magnitudes of around -1.46.
When viewed from earth a red star and a blue star appear to be equally bright what could you infer about these two stars?
If a red star and a blue star appear to be equally bright from Earth, it suggests that they have similar apparent magnitudes. However, since blue stars are typically hotter and more luminous than red stars, the red star may be much closer to Earth than the blue star, compensating for the difference in intrinsic brightness. This scenario indicates that the two stars have different temperatures, sizes, and possibly different stages in their stellar evolution.
What is the brightness of Earth?
Earth's albedo is .39 ------------------------------------- The albedo is a measure of how much light the Earth reflects The amount of light/energy falling on the Earth form the Sun is between 0.8 and 1.0 kW / m².
Who are the astronomer divided the stars into six magnitudes of brightness?
The astronomer who divided stars into six magnitudes of brightness was Hipparchus, a Greek astronomer active in the 2nd century BCE. He developed a system to categorize stars based on their apparent brightness, with the first magnitude representing the brightest stars and the sixth magnitude representing the faintest stars visible to the naked eye. This magnitude scale laid the groundwork for modern astronomical classification of stellar brightness.
What are the brightness of stars?
magnitude, dim stars have positive magnitudes and bright stars have negative magnitudes
What type of numbers are used to represent the magnitudes of dim stars?
Angstrom meters is the measurement for lightwho knows enymore
What do stars symbolise?
they represent bright shiny things in space! they represent bright shiny things in space!
What is the difference between the magnitudes of the bright stars Regulus and Procyon?
regulus is 1.36 and procyon is 0.36 so the differnece is 1
The brightest stars have apparent magnitudes that are?
The brightest stars have apparent magnitudes that are lower, indicating they appear brighter in the sky. The apparent magnitude scale is inverted, with lower values representing brighter objects and higher values representing dimmer objects. Bright stars typically have apparent magnitudes between -1 to 1.
What the magnitudeof the little dipper?
Asterisms don't have magnitudes. Stars have individual magnitudes.
What has the author A W J Cousins written?
A. W. J. Cousins has written: 'Fabry photometry of bright southern stars' -- subject(s): Astronomical photometry, Magnitudes, Southern sky (Astronomy), Stars
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.
Have absolute magnitudes of ones or less?
dwarf stars -Sydney-
Which one tells us how bright the stars would appear if all stars were at the same distance ferom the earth?
There are two terms used to describe a stars brightness, absolute magnitude and apparent magnitude. The one you want is absolute magnitude - this is where the stars distance from us is taken out of the equation, effectively comparing the stars brightness side by side from a set distance (10 parsecs or 32.6 light years). Apparent magnitude is the other measure, this is how bright a star apparently looks from Earth. The huge distances and range of distances involved means that you can have very bright stars (high absolute magnitude) that apparently look as bright as a much closer but dimmer (low absolute magnitude) star - their apparent magnitudes might be similar, but they may have vastly different absolute magnitudes.
Is light from stars and light from planets the same?
Planets don't produce their own light, it is only reflected light from the Sun. The light from the Sun is exactly the same type of light that comes from all other stars, it is stronger only because the Sun is closer to us. Brightness is measured in magnitudes, the bright stars are magnitudes 0 and 1 and there are even two stars with a negative magnitude. The dimmest stars visible in perfect conditions are 6th magnitude. The Sun's magnitude is -26.7. If the distance goes up 10 times, the brightness goes down 100 times, which is exactly 5 magnitudes.
What is the measure of the stars brightness from the earth?
That is called the apparent magnitude. Originally the brightest stars were called "magnitude 1", the weakest that could still be seen with the naked eye, "magnitude 6". The system has been formalized, now certain objects (several planets, the Moon, the Sun, some bright stars) actually have negative magnitudes; and of course, the range has been extended to weak objects that can only be seen with telescopes. In general, a larger magnitude numbers means an object is less bright.That is called the apparent magnitude. Originally the brightest stars were called "magnitude 1", the weakest that could still be seen with the naked eye, "magnitude 6". The system has been formalized, now certain objects (several planets, the Moon, the Sun, some bright stars) actually have negative magnitudes; and of course, the range has been extended to weak objects that can only be seen with telescopes. In general, a larger magnitude numbers means an object is less bright.That is called the apparent magnitude. Originally the brightest stars were called "magnitude 1", the weakest that could still be seen with the naked eye, "magnitude 6". The system has been formalized, now certain objects (several planets, the Moon, the Sun, some bright stars) actually have negative magnitudes; and of course, the range has been extended to weak objects that can only be seen with telescopes. In general, a larger magnitude numbers means an object is less bright.That is called the apparent magnitude. Originally the brightest stars were called "magnitude 1", the weakest that could still be seen with the naked eye, "magnitude 6". The system has been formalized, now certain objects (several planets, the Moon, the Sun, some bright stars) actually have negative magnitudes; and of course, the range has been extended to weak objects that can only be seen with telescopes. In general, a larger magnitude numbers means an object is less bright.
