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What is the magnitude of Altair star?

Apparent magnitude is 0.77 Absolute magnitude is 2.21Wikipedia lists its visual magnitude as 0.77.


What is the magnitude Betelgeuse?

Betelgeuse has an apparent magnitude of 0.58 and on absolute magnitude of -6.05.


What distance is the absolute magnitude and the apparent magnitude of a star would be equal if the star is seen at?

The standard distance is 10 parsecs. At this distance the star's apparent magnitude equals its absolute magnitude. A star 100 parsecs away has an absolute magnitude 5 magnitudes brighter than its apparent magnitude. 1 parsec is 3.26 light-years.


Are absolute magnitude and apprent magnitude the same thing?

No, absolute magnitude and apparent magnitude are not the same thing. Apparent magnitude is a measure of how bright an object appears from Earth, taking into account its distance and intrinsic brightness. Absolute magnitude, on the other hand, is a measure of how bright an object would appear if it were located at a standard distance of 10 parsecs (32.6 light-years) away from Earth.


Explain a stars apparent magnitude and absolute magnitude?

Apparent magnitude is the brightness of an object as seen from Earth without any atmosphere.Absolute magnitude is the brightness of an object as seen from a predetermined distance, depending on the object.For planets, the distance used is 1 AU (Astronomical Units). Stars and galaxies use 10 parsecs which is about 32.616 light years.The dimmer an object is the higher the positive value. The brighter an object is the higher the negative value.Examples:The Sun has an apparent magnitude of -26.74 but an absolute magnitude of 4.83Sirius has an apparent magnitude of -1.46 but an absolute magnitude of -1.42This means that from Earth, the Sun is a lot brighter, but if the Sun was replaced by Sirius, Sirius would be 25 times more luminous.See related links for more information

Related Questions

A star might be much brighter than it appears to be. This is called the star's absolute magnitude. The difference in apparent magnitude and absolute magnitude is due primarily to the star's -?

Distance


What is the Antares absolute magnitude and its apparent magnitude?

Antares Absolute and Apparent Magnitude Absolute Magnitude~ -5.2 Apparent Magnitude~ +0.60


What is difference in a star's apparent magnitude and absolute magnitude caused by?

How far away the star is.


What is the difference between apparent magnitude and surface magnitude?

The two types are apparent magnitude, the magnitude of a star as it appears to us, and absolute magnitude, which is what a star's apparent magnitude would be at a standard distance of ten parsecs.


How does the apparent-magnituede of a star differ from it absolute magnitude?

Absolute magnitude is how bright a star is. Apparent magnitude is how bright it looks to us (on Earth).


What is a synonym for absolute magnitude and apparent magnitude?

Apparent magnitude: How bright something looks to us. Absolute magnitude: How bright something really is - expressed as the apparent magnitude it would have at a standard distance.


What is the magnitude of Altair star?

Apparent magnitude is 0.77 Absolute magnitude is 2.21Wikipedia lists its visual magnitude as 0.77.


What is the absolute and apparent magnitude of Sirius B?

Sirius B is a faint white dwarf companion of Sirius A It has an apparent magnitude of +8.3 and an absolute magnitude of +11.18


Does a pulsating star change its apparent magnitude?

Yes, it may change its absolute, and therefore also its apparent, magnitude.Yes, it may change its absolute, and therefore also its apparent, magnitude.Yes, it may change its absolute, and therefore also its apparent, magnitude.Yes, it may change its absolute, and therefore also its apparent, magnitude.


What is the apparent brightness of star vega?

The apparent magnitude of Vega is 0.03. The absolute magnitude is 0.58.


What is the magnitude Betelgeuse?

Betelgeuse has an apparent magnitude of 0.58 and on absolute magnitude of -6.05.


What is the absolute magnitude of the Milky Way?

An estimation of the absolute magnitude is −20.9. See related question.