It used to make a huge difference. When telescopes were poor and space flight was unheard of. Nowadays the telescopes such as Hubble and Spitzer Infrared mean the we can see exactly how big, bright, and colourful a star is. So to answer the question: To the naked eye, yes. But with a descent telescope, absolutely not.
No, it refers to its brightness. A larger number means a less bright star.
No, it refers to its brightness. A larger number means a less bright star.
No, it refers to its brightness. A larger number means a less bright star.
No, it refers to its brightness. A larger number means a less bright star.
No. Absolute magnitude is a measure of how bright a star really is, not considering the distance away from the star we are.
The measure of a star's brightness AS SEEN FROM EARTH is called "relative magnitude" or apparent magnitude.
Yes and No.
The magnitude of a star is based on how bright it is (luminosity) and how far away it is.
So a small star close to us would be very bright compared to a massive star millions of light years away. But if they were at the same distance, then the more massive star would be brighter.
No, that's the Apparent magnitude you are thinking of. Stars that are closer to Earth appear to be brighter.
The Absolute magnitude of a star is the brightness as it would be measured from a fixed distance of 10 parsecs away from it. Since we can't travel there to measure that, we have to calculate that from its estimated distance and its apparent brightness.
Absolute magnitude is a measure of a celestrial object brightness at a set distance. For a star, it would be the brightness at a set distance of 10 parsecs or around 32 lightyears. For a solar system object it would be the brightness from 1 AU. It takes the objects distance out of the equation so that star brightnesses can be directly compared.
The apparent magnitude would increase because it would be getting closer. but the absolute magnitude would stay the same.
No, it refers to its brightness. A larger number means a less bright star.
Not at all.
Yes
A star's brightness is known as its magnitude. Stars with lower magnitude numbers are brighter than stars with a higher magnitude number.
Apparent magnitude and absolute magnitude.
leo doesn't have a magnitude.Only the stars inside have magnitude.
a stars brightness as seen from Earth
Astronomers use a special term to talk about the brightness of stars. The term is "magnitude". The magnitude scale was invented by the ancient Greeksaround 150 B.C. The Greeks put the stars they could see into six groups. They put the brightest stars into group 1, and called them magnitude 1 stars. Stars that they could barely see were put into group 6. So, in the magnitude scale, bright stars have lower numbers.
The absolute magnitude is a measure of the star's luminosity hence the smaller the size the less the absolute magnitude.
The brightness of a star depends on its temperature, size and distance from the earth. The measure of a star's brightness is called its magnitude. Bright stars are first magnitude stars. Second magnitude stars are dimmer. The larger the magnitude number, the dimmer is the star.The magnitude of stars may be apparent or absolute.
yes yes it does
The stars visible from earth (except the sun) represent stars from the size of our sun to supergiants. How "big" they look to us is as much or more a function of their distance from us as it is their size. With good vision, on a clear night, the faintest stars we can see are about fifth magnitude. With a 70 mm telescope, that jumps to about 9th magnitude.
A star's brightness is known as its magnitude. Stars with lower magnitude numbers are brighter than stars with a higher magnitude number.
In the context of stars, a magnitude is not a measure of size but of brightness or apparent brightness. The apparent magnitude of the sun is -27 while Sirius, the brightest star has a magnitude of only -1.4: negative magnitudes are more bright, and stars with magnitudes greater than 6.5 are not visible to the naked eye. However, the sun is a star of modest modest size compared with some of the giants and supergiants.
No. Size does not necessarily affect the magnitude of an earthquake. In fact, a deep earthquake will have less of an effect on the surface than a shallow earthquake of the same magnitude.
The question is: Why is the apparent magnitude of some stars less than their absolute magnitude. Or: Why do some stars not look as bright as they really are ? The answer is: Because they're so far away from us.
There are two main meanings of magnitude. One is the absolute value. In this context, the magnitude of the number is its size, irrespective of the sign. So, the magnitude of -4 is the same as the magnitude of 4. The other is in the sense of the order of magnitude. This is usually used when the measurement scale is logarithmic. The apparent brightness of stars, for example is expressed in magnitude. Brightest stars = magnitude 1. Stars half as bright = mag 2, quarter as bright = mag 3 etc. Or [deci]bel for the loudness of sound. Incidentally, the Richter scale, for measuring the strength of earthquakes is not a systematic measure in this sense. The measure is largely based on the effects of the quake at the surface.
Magnitude. First magnitude descibes many bright stars, and a span of five magnitudes represents a difference of a hundred times in the star's brightness. The dimmest stars seen by a perfect human eye in perfect conditions is 6th magnitude.
how bright they are.
Magnitude.