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What is the difference between a twelfth magnitude and fifteenth magnitude star?
The main difference is brightness: a twelfth magnitude star is brighter than a fifteenth magnitude star. Magnitude is a logarithmic scale, so each step in magnitude represents a difference in brightness of about 2.5 times. This means a twelfth magnitude star is approximately 12.5 times brighter than a fifteenth magnitude star.
How do you find the brightness ratio of stars?
The brightness ratio of stars is typically expressed using a magnitude scale. The magnitude scale is a logarithmic scale that measures the brightness of celestial objects, including stars. The lower the magnitude value, the brighter the object. Conversely, higher magnitude values indicate fainter objects. The magnitude scale is defined such that a difference of 5 magnitudes corresponds to a brightness ratio of exactly 100. In other words, a star that is 5 magnitudes brighter than another star is 100 times brighter. Similarly, a star that is 10 magnitudes brighter is 100 x 100 = 10,000 times brighter, and so on. To find the brightness ratio (R) between two stars with different magnitude values (m1 and m2), you can use the following formula: R = 100^( (m2 - m1) / 5 ) Where: R = Brightness ratio between the two stars. m1 = Magnitude of the first star. m2 = Magnitude of the second star. For example, if Star A has a magnitude of 2 and Star B has a magnitude of 6, you can calculate the brightness ratio as follows: R = 100^( (6 - 2) / 5 ) R = 100^(4/5) R ≈ 2.511 So, Star B is approximately 2.511 times dimmer than Star A. It's important to note that the magnitude scale is relative, and negative magnitudes indicate exceptionally bright objects (e.g., the Sun, which has an apparent magnitude of approximately -26.74), while positive magnitudes represent progressively fainter objects. Additionally, the magnitude of a star can be influenced by various factors, such as distance, intrinsic brightness, and interstellar dust extinction.
How do scientists find absolute dates of fossils?
by using a X-ray
What is absolute mass of electron?
The absolute mass of an electron is approximately 9.109 x 10^-31 kilograms.
How much brighter does a first magnitude star appear than a 6 magnitude star?
Each difference of 1m corresponds to a factor of about 2.512 (to be precise, 100.4, or the fifth root of 100 - the scale is chosen in such a way that a difference of 5m corresponds to a factor of 100). Therefore, since in this example there is a difference of 3m, you calculate 2.512 to the power 3.
How do you calculate the absolute magnitude of a star from its brightness ratio?
Use the equation Absolute magnitude=Apparent Magnitude+5 -(5x Log x Distance)
What is the difference between a twelfth magnitude and fifteenth magnitude star?
The main difference is brightness: a twelfth magnitude star is brighter than a fifteenth magnitude star. Magnitude is a logarithmic scale, so each step in magnitude represents a difference in brightness of about 2.5 times. This means a twelfth magnitude star is approximately 12.5 times brighter than a fifteenth magnitude star.
Star A is 7 mangnitudes brighter than star B how does the apparent brightness of star A compare with that of star B?
magntiude1 - magnitude2 = -2.5 log(brightness1/brightness2) so -7 = -2.5 log(b1/b2) 2.8 = log(b1/b2) if "p = log x" then "x = 10^p" (b1/b2) = 10^2.8 = 631 tell your teacher i said hi
What two caracteristics of a star are plotted on the Hertzsprung-Russell diagram?
The two characteristics of a star plotted on the Hertzsprung-Russell diagram are luminosity (brightness) on the y-axis and temperature or spectral type on the x-axis. This diagram helps astronomers classify stars according to their different stages of evolution.
What is the absolute value of x minus the absolute value of x?
zero. The absolute value of a number is just the positive version of that number, so the absolute value of x is x, and x minus x is zero.
What is the absolute value of -19?
The absolute value of 19 is 19. If x is positive , absolute x equals x.
What is The absolute value of three x minus one equals the absolute value of x plus five?
First, simplify the equation: absolute (3x-1) = absolute (x+5) absolute (2x) = absolute (6) absolute (x) = absolute (3) which really means plus or minus 3, or, (+/-3) Now you have x = +/- 3, so test out x = 3 and x = -3. Test out x = 3: absolute (3*3-1) = absolute (3+5) absolute (9-1) = absolute (8) ---> absolute 8 = absolute 8 --> 8=8 which is correct! Now test x = -3 absolute (3*(-3)-1) = absolute (-3+5) ---> absolute (-9-1) = absolute (2) absolute (-10) = absolute 2 ---> 10 = 2 Since 10 does not equal 2, this is not a correct answer. Therefore x = 3.
What is the absolute value of x?
Abs(x) = x when x >= 0Abs(x) = -x when x < 0.In short, abs(x) is the distance from the origin to x, irrespective of whether it is to the left or right.
How do the slopes of the two parts of an absolute value function compare?
the graph of y = |x| (absolute value of x) looks like a V with the point of the V at the origin. When x is negative (left half of graph), the line y = -x coincides with |x| so this half has a slope of -1. When x is positive (right half of graph), the line y = x coincides with |x| so this half has a slope of +1.
How do you find the absolute value of something?
If a number is not less than zero then that is its absolute value. If a number is less than zero, its negative is its absolute value. So, if |x| denotes the absolute value of x, then |x| = -x for x<0 [since if x<0 then -x>0] and |x| = x for x>= 0
What is the absolute value of a negative integers?
The absolute value of a number is how many spaces the number is away from 0. So if the number was 32, the absolute value would be 32. And if the number was -54, then the absolute value would be 54. ========== The definition of "absolute value" for a number x (written as |x| ) is: |x| = x for x >0 |x| = 0 for x=0 |x| = -x for x<0
What are the two axes of a Hertzsprung-Russell diagram labeled?
The two axes of a Hertzsprung-Russell diagram are typically labeled with luminosity (or absolute brightness) on the y-axis and temperature (or spectral type) on the x-axis. This allows for the classification and categorization of stars based on their brightness and temperature.
