0
What else can I help you with?
What is the difference between first magnitude and 29th magnitude?
Brightness. A 1st magnitude star is one of the brightest stars in the sky. Things at 7th magnitude are just barely visible to the naked eye, and objects at 29th magnitude are barely detectable even with the largest telescopes. Mathematically, as you move up a magnitude the next star is about 2.512 times brighter. So you need to keep multiplying until you've gone from magnitude 29 right up to 1st magnitude. In fact an increase in brightness of five magnitudes is an increase of exactly 100 times. So, in this case the answer is : 100 x 100 x 100 x 100 x 100 x about 15.85 That's about: 158,500,000,000 times brighter.
After the sun which is the brightest star you see?
The brightest star that is not the sun is Sirus. Sirus is a 1st magnitude star. Sirus is 8.7 light years away from Earth, which is not to far away(for a star at least). Sirus is obviously not too big but is very bright and close to Earth! Sirus is in the constellation Canis Major, which in English means "Big Dog". Well there you have it the brightest star! If you need any more help with stars or constellations just leave a message on my message board and I will try my best to give an understandable explanation. Well Ta Ta for now (ttfn) P.S. my user name is bingo22. -De De
Is a third magnitude star 10 times brighter then a 4th magnitude star?
Absolutely. When speaking of the brightness you see from earth, you are speaking of apparent magnitude. When considering the type of star, it's composition, stage, age, size, distance, etc., a star is also assigned an absolute magnitude, so the ranking of the star if seen from similar distances reveals the truth about a star. 3.26 light years away is the assumed distance in ranking stars. A star many times farther away than a second star may appear much brighter than the second star which is much closer, based partially on the various factors mentioned above. The lower the value for a magnitude, the brighter, or more correctly, the more luminous, a star. Thus, a 3.4 is brighter than a 5.1, for example. Long ago the scale was originally an arbitrary ranking based on certain stars that were considered to be the brightest. Since then, stars even brighter have been identified, thus the need to use values even less than zero. Only a handful of stars fall below zero in apparent magnitude. So then it is not significant where in the sky (in what constellation) a star lies, the magnitude value determines the brightness.
If star A is third magnitude and star B is fifth magnitude which is brighter and by what factor?
A 3rd magnitude star is brighter than a 5th magnitude star by a factor of 6.25.Each integer difference of magnitude represents a change in apparent brightness of 2.5 times. Hence, a 3rd magnitude star is 2.5 x 2.5 = 6.25 times brighter than a 5th magnitude star.(check related links)
Who classified stars according to their brightness?
The Greeks had a system of classifying stars according tot heir brightness. The main Greek astronomer to use magnitudes was Ptolemy. But the modern system of magnitudes was devised by Norman Pogson. A 1st magnitude star is defined as being 100 times brighter than a 6th magnitude star. A difference of one magnitude is equivalent to 2.512 times brighter or fainter.
Which is known as bright wandering star?
The brightest star that is not the sun is Sirus. Sirus is a 1st magnitude star. Sirus is 8.7 light years away from Earth, which is not to far away(for a star at least). Sirus is obviously not too big but is very bright and close to Earth! Sirus is in the constellation Canis Major, which in English means "Big Dog".
What is the difference between first magnitude and 29th magnitude?
Brightness. A 1st magnitude star is one of the brightest stars in the sky. Things at 7th magnitude are just barely visible to the naked eye, and objects at 29th magnitude are barely detectable even with the largest telescopes. Mathematically, as you move up a magnitude the next star is about 2.512 times brighter. So you need to keep multiplying until you've gone from magnitude 29 right up to 1st magnitude. In fact an increase in brightness of five magnitudes is an increase of exactly 100 times. So, in this case the answer is : 100 x 100 x 100 x 100 x 100 x about 15.85 That's about: 158,500,000,000 times brighter.
What is a first magnitude star called?
The term magnitude is used to define the apparent brightness of an object from Earth. The scale has its origins in the Hellenistic practice of dividing stars, visible to the naked eye into six magnitudes.The brightest stars were said to be of first magnitudewhile the faintest were of sixth magnitude by visual perception.Each magnitude was considered to be twice the brightness of the following grade (a logarithmic scale).Nowadays there are more than six magnitudes and the use of negative values were introduced. So our Sun have an apparent magnitude of -26.73 whilst Uranus is 5.5See related for for information
After the sun which is the brightest star you see?
The brightest star that is not the sun is Sirus. Sirus is a 1st magnitude star. Sirus is 8.7 light years away from Earth, which is not to far away(for a star at least). Sirus is obviously not too big but is very bright and close to Earth! Sirus is in the constellation Canis Major, which in English means "Big Dog". Well there you have it the brightest star! If you need any more help with stars or constellations just leave a message on my message board and I will try my best to give an understandable explanation. Well Ta Ta for now (ttfn) P.S. my user name is bingo22. -De De
How bright is a star if its absolute magnitude is -1.4?
For historical reasons, the ratio of brightness that represents a change of 1 visual magnitude is defined as the 5th root of 100. So the ratio of brightness between two stars whose apparent visual magnitudes differ by 1 is 2.512 (rounded). The brighter star is 2.512 times as bright as the 'dimmer' one . A difference of 5 magnitudes is a difference of 100 times in brightness, which the difference between a 1st magnitude star and a 6th magnitude one.
Is a third magnitude star 10 times brighter then a 4th magnitude star?
Absolutely. When speaking of the brightness you see from earth, you are speaking of apparent magnitude. When considering the type of star, it's composition, stage, age, size, distance, etc., a star is also assigned an absolute magnitude, so the ranking of the star if seen from similar distances reveals the truth about a star. 3.26 light years away is the assumed distance in ranking stars. A star many times farther away than a second star may appear much brighter than the second star which is much closer, based partially on the various factors mentioned above. The lower the value for a magnitude, the brighter, or more correctly, the more luminous, a star. Thus, a 3.4 is brighter than a 5.1, for example. Long ago the scale was originally an arbitrary ranking based on certain stars that were considered to be the brightest. Since then, stars even brighter have been identified, thus the need to use values even less than zero. Only a handful of stars fall below zero in apparent magnitude. So then it is not significant where in the sky (in what constellation) a star lies, the magnitude value determines the brightness.
If star A is third magnitude and star B is fifth magnitude which is brighter and by what factor?
A 3rd magnitude star is brighter than a 5th magnitude star by a factor of 6.25.Each integer difference of magnitude represents a change in apparent brightness of 2.5 times. Hence, a 3rd magnitude star is 2.5 x 2.5 = 6.25 times brighter than a 5th magnitude star.(check related links)
How do they name stars?
There are many systems. Bayer Designation One system is by naming them by the constellation they are in and their brightness.Alpha(α) was generally for the brightest, Beta(β) for the next brightest, then Gamma (γ) and so on with all the letters of the Greek alphabet. The brightest star in the Big dipper constellation (Ursa Major) would be called α UMa and the next brightest.For the constellation of Sagittarius, the stars are α Sgr and β Sgr.DrawbacksWhen Bayer prepared his catalogue, there was no way to measure stellar brightness precisely. Traditionally, the stars were assigned to one of six magnitude classes, and Bayer's catalog lists all the first-magnitude stars, followed by all the second-magnitude stars, and so on.However within each magnitude class, there was no attempt to arrange stars by relative brightness.For example, in the Orion constellation, Bayer first designated the two 1st-magnitude stars, Betelgeuse and Rigel, as Alpha and Beta, with Betelgeuse (the shoulder)as Alpha and Rigel (the foot) as Beta, even though the latter is the brighter. Flamsteed designation Flamsteed designation for stars are similar to Bayer designations, except that they use numbers instead of Greek letters. Each star is assigned a number and the Latin genitive of the constellation it lies in. The numbers were originally assigned in order of increasing right ascension within each constellation. Other Various catalogs of stars exist, where the stars are numbered according to some system (generally by area; for example, they might start with stars within fifteen degrees of the north celestial pole and go from east to west, then take the next fifteen degree band south and do the same thing, etc.) The exact system used depends on the catalog. It's also possible that a star will get a name or nickname based on whatever property makes it worth talking about (the star illuminating the Pistol Nebula is called the Pistol Star; a particular red dwarf is called Barnard's (Runaway) Star because Barnard was the person who discovered that it had a high proper motion).
Who classified stars according to their brightness?
The Greeks had a system of classifying stars according tot heir brightness. The main Greek astronomer to use magnitudes was Ptolemy. But the modern system of magnitudes was devised by Norman Pogson. A 1st magnitude star is defined as being 100 times brighter than a 6th magnitude star. A difference of one magnitude is equivalent to 2.512 times brighter or fainter.
What star sign for June 1st?
The star sign for 1st June is......... Gemini
What are the race driver grid online rankings?
The ranks for Grid online are as follows,,, Jr. Rookie Jr. Rookie 1st star Jr. Rookie 2nd star Jr. Rookie 3rd star Rookie Rookie 1st star Rookie 2nd star Rookie 3rd star Adv. Rookie Adv. Rookie 1st star Adv Rookie 2nd star Adv. Rookie 3rd star Jr. Pro Jr. Pro 1st star Jr. Pro 2nd star Jr. Pro 3rd star Pro Pro 1st star Pro 2nd star Pro 3rd star Sr. Pro Sr. Pro 1st star Sr. Pro 2nd star Sr. Pro 3rd star Champion Champion 1st star Champion 2nd star Champion 3rd star Superstar Superstar 1st star Superstar 2nd star Superstar 3rd star Elite Elite 1st star Elite 2nd star Elite 3rd star Legend .
Why does Rigel have the designation beta Ori when it is a brighter star than Betelgeuse?
Answer When Bayer prepared his catalogue, there was no way to measure stellar brightness precisely. Traditionally, the stars were assigned to one of six magnitude classes, and Bayer's catalog lists all the first-magnitude stars, followed by all the second-magnitude stars, and so on. However within each magnitude class, there was no attempt to arrange stars by relative brightness. For example, in the Orion constellation, Bayer first designated the two 1st-magnitude stars, Betelgeuse and Rigel, as Alpha and Beta, with Betelgeuse (the shoulder) coming ahead of Rigel (the foot), even though the latter is the brighter.Also worth mentioningis that Betelgeuse is a semiregular variable star, and sometimes IS brighter than Rigel.So, it is possible that Betelgeuse was mistakenly classified as the brightest because it could have been experiencing an increase in brightness at that time.
