What is the color of the dimmest star?

Answer 1

The scale below is given as an instructive tool, to give a general idea of how the magnitude scale works. The scale below is intended to be roughly visual; the human eye's (dark-adapted) detection efficiency peaks around 495 nanometers, while the formal photoelectric V peak (a filtered band intended to be close to visual) is around 550 nm; CCDs tend to peak around 700 nm. The examples are given for integer values are not "exact", in that celestial objects are often measured to a precision or 0.1 or 0.01 magnitude; for example, Sirius shines at V = -1.47 (Yale Bright Star Catalogue), and the planet Venus varies in brightness generally from magnitude -4.5 to -3.7. Note that a comet of magnitude 5 will not be as easy to see as a star of magnitude 5, because that same amount of brightness that is concentrated in a point for the star is spread out over a region of the sky for a diffuse comet with a relatively-large coma. For more information go to http://www.cfa.harvard.edu/icq/MagScale.html

Answer 2

Sirius is the brightest star in the night sky with a visual apparent magnitude of −1.46, almost twice as bright as Canopus -0.7, the next brightest star.

The Sun has an apparent magnitude of -26.73 while the full moon is -12.6.

(Yes these figures are negative)

The North Star? I'm not really sure though...

Answer 3

The brightest stars are those whose magnitudes are the lowest numbers.

The magnitude of the sun is -26.8 .

The magnitude of the full moon is about -12 .

Venus at its brightest . . . -4.7 .

Sirius, the brightest star except for the sun . . . -1.5 .

Dimmest stars visible with good eyes and no telescope . . . about 6 .

Dimmest stars visible with largest telescope . . . about 24 .

Answer 4

Kind of. A dim star maybe of magnitude 5, while brighter stars will have lower numbers. 3 will be brighter, 2 brighter still. You can go past zero though for very bright stars and into negative numbers. Sirius is the brightest star (except for the sun) with a magnitude of -1.46.

Answer 5

the magnitude of a star is it's brightness. but, it is not its true luminosity, because stars that are closer to us appear brighter. The lower the number, the brighter it is. The suns magnitude is -27. the moon is -12 (other objects have magnitude as well). venus is -4, polaris (the north star) is 2.

Answer 6

It depends whether you mean "apparent magnitude" or "absolute magnitude".

I will assume you mean apparent magnitude because that's easier to answer.

Apparent magnitude is a measure of how bright a star seems to us on Earth.

The star that seems brightest in our sky is Sirius.

Technical point: Star magnitude is an unusual scale because the smaller

numbers actually represent the brightest stars. If the question literally means highest magnitude, that means the dimmest star. I assume you meant the brightest star.

Answer 7

This looks like a multiple choice question that you neglected to include the choices to. The answer is whichever of them is the lowest.

Answer 8

john kenneth lagrada VI-3

Mrs.. jocelyn uaje

Science and health

Answer 9

The dimmest star has not been discovered. With larger telescopes more dimmer stars can be seen, and no limit has been reached.

Answer 10

red