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Does it mean that the star is a main sequesnce star? ( . Y . ) The above isn't true. A star can be a blue supergiant and be on the main sequence but still not be even visible to us, therefore the apparent and absolute magnitude wouldn't be the same. But to answer your question, I don't think it has a name, it just means that you are seeing the star's absolute and apparent magnitude at the same time, so if you placed the star at 32.6 light years away(the absolute magnitude scale)then the star would not appear to change in brightness
Wiki User
∙ 14y ago
Wiki User
∙ 14y ago- Cygnus OB2-12 with an absolute magnitude of -12.2
- Eta Carinae with an absolute magnitude of -12
- LBV 1806-20 with an absolute magnitude of -12
- The Sun for comparison has an absolute magnitude of +4.75
Wiki User
∙ 11y agoA star's 'apparent' magnitude is a measure of how bright it appears to us in our sky.
A star's 'absolute' magnitude is a measure of how bright it would appear in our sky
if it were located 32 light years distant from us (10 parsecs).
The absolute magnitude allows us to directly compare the brightness of one star to
the brightness of others, because it removes the effects of their different distances
from us.
Wiki User
∙ 13y agoAbsolute magnitude is the brightness from a set distance, while apparent magnitude is how bright the star appears from earth. A much more luminous star can appear just as bright (have the same apparent magnitue) as a dimmer star, if the dimmer star is much closer and the brighter is much further away.
Wiki User
∙ 13y ago1). Every star can have a different absolute magnitude. If two stars
have the same absolute magnitude, it's a coincidence.
2). The sun IS a star. Its absolute bolometric magnitude is 4.75 .
Wiki User
∙ 12y agoThe question is a bit confusing. All stars have absolute magnitudes; it's simply a measure of how bright they are intrinsically. (More specifically, the absolute magnitude of a star is a measure of how bright it would be if it were located 10 parsecs away.)
Wiki User
∙ 13y agoYes. Lower magnitude-numbers mean brighter objects. Negative magnitudes
are brighter than magnitude zero. The dimmest objects that can be seen in the
sky with bare eyes are around magnitude 6 .
Wiki User
∙ 14y agoAbsolute magnitude is a measure of brightness, and your question says nothing about that, it only describes relative distance. Let's try a different question. Two stars appear to have the same brightness, but one is twice as far away as the other; which has the greater absolute magnitude? The answer then is, the more distant one has the greater absolute magnitude.
Wiki User
∙ 13y agoDepends how you define low as an absolute magnitude (negative or positive) and what you classify medium temperature as.
- A negative absolute with a temperature of ~5,500K would be hypergiants, supergiants
- A positive absolute with a temperature of ~5,500K would be white dwarfs.
Wiki User
∙ 11y agoThe Wikipedia article "List of most luminous stars" has a list of very bright stars. Please be sure to also read the "disclaimer" at the top, listing some of the practical problems involved in compiling such a list.
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Why does a star such as betelgeuse which is located far from earth have a much greater absolute magnitude than apparent magnitude?
well my reason is that the betelgeuse must be very large , because they said that the betelgeuse is located far from earth .
Why does a star such as Betelgeuse which is located far from earth have much greater absolute magnitude than apparent magnitude?
well my reason is that the betelgeuse must be very large , because they said that the betelgeuse is located far from earth .
What is the absolute magnitude of Canopus?
The visual apparent magnitude of Arcturus is -0.05.The visual apparent magnitude of Arcturus is -0.05.The visual apparent magnitude of Arcturus is -0.05.The visual apparent magnitude of Arcturus is -0.05.
What is a large star of high luminosity?
A good example of a medium size star is the Sun, which is very average. Luminosity is measured by the star's absolute magnitude, which is the magnitude seen from a standard distance of ten parsecs (32.6 light-years), and the Sun's absolute magnitude is +4.7. A factor of 100 increase in luminosity corresponds to 5 magnitudes less (larger magnitudes mean dimmer stars). The brightest stars have absolute magnitudes around -7.
What is the moon's apparent magnitude?
The apparent magnitude of Mercury varies because its brightness changes as it moves in its orbit about the sun. And the earth, from which we view Mercury and make a determination as regards it apparent magnitude, moves as well. It varies from -1.9 to 5.5 as we see it. (Some sources hold a -2.0 as a lower limit.) A link can be found below.
How does the brightness of a quasar compare with that of a large galaxy?
I assume when you mean brightness, you mean apparent magnitude as opposed to absolute magnitude. The quasar 3C 273 has an apparent magnitude of about 12.8 whereas the brightest galaxy - the Large Magellanic Cloud has an apparent magnitude of 0.9. However, in absolute magnitudes, 3C 273 has an absolute magnitude of about -26.7 very similar to our own Sun.
Why does Bellatrix has the brightest absolute magnitude?
The simple answer is that it does not. It is important to note that stars radiate across a whole range of electromagnetic frequencies, not just in the visible part of the spectrum. Astronomers use bolometric absolute magnitude to adjust for the fact that a star may be radiating much of their energy outside of the visible range. Using the bolometric absolute magnitude, the brightest star, with magnitude -12.5 is RMC136a1 in the Large Magellanic Cloud, at a distance of 163000 light years.Among stars visible to the naked eye, Bellatrix does not even make it to the top ten in terms of its bolometric absolute magnitude. That distinction goes to P Cygni with an absolute magnitude of -9.7. It is 5900 light years away. In comparison, Bellatrix has a magnitude of only -2.64
How can two supergiant stars have an absolute magnitude of -3 but one has a radius of 10 times the sun and the other 100 times the sun?
The absolute magnitude of a star depends on the size and temperature; a large cooler star can generate as much light as a small very hot star.
Why does a star such as Betelgeuse which is located far from earth have much greater absolute magnitude than apparent magnitude?
well my reason is that the betelgeuse must be very large , because they said that the betelgeuse is located far from earth .
Why does a star such as betelgeuse which is located far from earth have a much greater absolute magnitude than apparent magnitude?
well my reason is that the betelgeuse must be very large , because they said that the betelgeuse is located far from earth .
How do you measure absolute magnitude?
The absolute magnitude is the magnitude (brightness) an object would have at a standard distance - how bright would it look at a standard distance. For a star or galaxy, the standard distance of 10 parsecs is commonly used.
What is the used to measure earthquakes?
The absolute magnitude of a quake is conventionally reported by numbers on the Moment magnitude scale (formerly Richter scale, magnitude 7 causing serious damage over large areas), whereas the felt magnitude is reported using the modified Mercalli intensity scale (intensity II-XII).
What scale is used to measure earthquakes?
The absolute magnitude of a quake is conventionally reported by numbers on the Moment magnitude scale (formerly Richter scale, magnitude 7 causing serious damage over large areas), whereas the felt magnitude is reported using the modified Mercalli intensity scale (intensity II-XII).
What is the price of a larger cup of coffee at Tim Horton's?
The differences will not be as small as the person thinks them to be when they are checking at negative magnitude from one dollar and positive magnitude of one dollar
What is the scale used to measure earthquakes?
The absolute magnitude of a quake is conventionally reported by numbers on the Moment magnitude scale (formerly Richter scale, magnitude 7 causing serious damage over large areas), whereas the felt magnitude is reported using the modified Mercalli intensity scale (intensity II-XII).
When was The Absolute at Large created?
The Absolute at Large was created in 1922.
Which star has the largest absolute magnitude?
There is a star in the Large Magellanic Cloud called R136a1 which has an absolute magnitude of -12.5. Undoubtedly others will turn up as time goes by. M33-013406.63 in the Traingulm Galaxy has an absolute magnitude of -12.2 to -12.7 (not quite sure of the exact M)
