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What is absolute bolometric magnitude?
Absolute magnitude is the brightness of an object (star, galaxy, etc.) from a standard distance."Bolometric" means that the entire energy output is calculated - not just visible light.
What type of star is hamal?
Hamal is an orange giant star belonging to the spectral classification K2III. It is located in the constellation Aries and is approximately 66 light-years away from Earth. It is one of the brightest stars in its constellation.
What is Draco star type?
Draco star type is negative
Which magnitude of star is brighter -5 or 2?
A magnitude of -5 is brighter than a magnitude of 2. The magnitude scale used in astronomy is inverted, meaning the lower the number, the brighter the object. So, a negative magnitude indicates a brighter star than a positive magnitude.
What is the luminosity of the star regulus?
Regulus is a multiple star system, consisting of four stars. The primary star, Regulus A, has a luminosity approximately 350 times that of the Sun. The combined luminosity of all four stars makes Regulus one of the brightest stars in the night sky.
I am given the bolometric BC equals -1.46 and the visual magnitude V equals 4.33 of a star. how do you calculate the angular diameter?
To calculate the angular diameter of the star, you would first need to determine its luminosity using the bolometric correction (-1.46). Next, using the visual magnitude (4.33), you can calculate the distance to the star. Finally, you can use the actual diameter of the star and the distance to calculate its angular diameter.
What is absolute bolometric magnitude?
Absolute magnitude is the brightness of an object (star, galaxy, etc.) from a standard distance."Bolometric" means that the entire energy output is calculated - not just visible light.
Which star is more powerful R136a1 or VY Canis Majoris?
R136a1 is more powerful than VY Canis Majoris. R136a1 is a massive and bright star in the R136 star cluster in the Tarantula Nebula, while VY Canis Majoris is a red hypergiant star in the constellation Canis Major. R136a1 is one of the most massive and luminous stars known, outshining VY Canis Majoris.
F star an o star?
No - an F star is an F star and an O star is well an O star The Harvard Spectral Classifications say that a Class 0 star have temperatures =>30,000 degrees Kelvin, they are blue in conventional and apparent colour, have a mass of =>16 Mo, have a solar radii =>6.6 Ro and have a luminosity (bolometric) of =>30,000 Lo. Class F star have temperatures 6,000 - 7,500 degrees Kelvin, they are yellowish-white in conventional colour and white in apparent colour, have a mass of 1.04 - 1.4 Mo, have a solar radii 1.15 - 1.4 Ro and have a luminosity (bolometric) of 1.5 - 5 Lo.
What body in space is the most luminous star?
The most luminous star in space is named R136a1 which is 160,000 light years away from space. It measures absolute bolometric magnitude of -12.6 , and an apparent visible magnitude of 12.84.
What type of star is hamal?
Hamal is an orange giant star belonging to the spectral classification K2III. It is located in the constellation Aries and is approximately 66 light-years away from Earth. It is one of the brightest stars in its constellation.
How do positive and negative numbers relate to a star's temperature?
the positive is the dimmest star. the negative is the brightest star.
What is the 2nd Star Trek series?
Star Trek: The Next Generation (1987-1994) Correction!: Star Trek: The Animated Series (1973-1975)
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)
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
Which magnitude gives the most information about the physical nature of a star?
The luminosity of a star gives the most information about its physical nature. Luminosity is a measure of how much energy a star emits per unit of time and is directly related to its size, temperature, and distance. By knowing a star's luminosity, scientists can determine its mass, age, and evolutionary stage.
What kind of star is neptune?
Negative neutron star
