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Which magnitude is brighter a negative number or a positive number?
Wiki User
∙ 13y ago
Negative magnitude is always brighter than a positive value.
Wiki User
∙ 13y ago
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How far is Draco?
The constellation Draco has several bright stars. The brightest is Gamma Draconis, or Eltanin with a magnitude of +2.24. The next brightest star is Eta Draconis at a magnitude of +2.7 with Beta Draconis, or Rastaban at +2.78. (Note that in the magnitude scale the larger the positive number is the dimmer the star, conversely, the more negative the number the brighter the star.)
What is a stars brightness known as?
A star's brightness is known as its magnitude. Stars with lower magnitude numbers are brighter than stars with a higher magnitude number.
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.
Which star is brighter -2 or -3?
The way stellar magnitude works, a smaller number is associated with increased brightness. Since -3 < -2, a magnitude -3 star would be brighter than a magnitude -2 star. Each decrease in magnitude by 1 means in increase in brightness by a factor of about 2.5119. Equivalently, each decrease in magnitude by 5 means an increase in brightness by a factor of 100. Incidentally, the brightest star in the sky (Sirius) has an apparent magnitude of only about -1.5.
What factor affects the luminosity of stars?
Energy output, as absolute brightness (magnitude) is taken at a standard distance of 10 parsecs.
Why is the sum of a positive integer and a negative integer is always negative?
It isn't always negative. ... for example: -5 + 12 = 7 (a positive number) -5 + 2 = -3 (a negative number) -5 + 5 = 0 (neither negative nor positive) If the negative number has greater magnitude than the positive number, the sum will be negative If the positive number has greater magnitude than the negative number, the sum will be positive If the negative and positive numbers have the same magnitude, the sum will be zero.
Can be magnitude of a vector have negative value?
Vectors have magnitude and direction. The magnitude is always a positive number.
Bright is a positive or negative?
If you are talking about stars then the lower the number the brighter it is.If you are talking about the luminosity then it is a positive number.
What is a positive add a negative?
The sum will have the same sign as the number with the largest magnitude. If the numbers have the same magnitude, then the answer is zero, which is positive.
Is a negative number minus a negative number a positive or negative answer?
It can have any sign. For example, -3 - (-1) = -3 + 1 = -2 the answer is negative. -3 - (-3) = -3 + 3 = 0 the answer is zero. -3 - (-5) = -3 + 5 = 2 the answer is positive. If the magnitude of the second negative [1] is smaller than the magnitude of the first [3], the answer is negative. If the magnitudes are equal, the answer is zero If the magnitude of the second number [5] is bigger than the magnitude of the first [3], the answer is positive.
When is the sum of a positive integer and a negative integer negative?
When the absolute value of the negative number is higher than the positive number.
Which number is a magnitude number 33 or negative 52?
The magnitude of a number is always positive - it's the same as the absolute value.-52 can't be a magnitude, 33 can.
How can atoms be neutral if they have charged particles?
because in their neutral state the number of positive particles is equal to the number of negative particles and the magnitude of a single positive charge is the same as the magnitude of a single negative charge in short the positive and negative charges cancel each other out
What is negative plus positive?
It depends on the magnitude of the negative and positive values. Equal magnitudes equal zero. -2 + 2 = 0 Larger negative number than positive number equals a negative number. -3 + 2 = -1 Smaller negative number than positive number equals a positive number. -2 + 3 = 1
What if you multiply a positive number with negative number?
The magnitude of the answer is the same whatever the signs of the two numbers. If the two numbers have different signs, then the answer is negative. If they have the same sign, the answer is positive.
What are the rules for adding postive and negative integers?
Not sure if you want just a positive and a negative integer, added or more info.2 positive integers a & b (easiest)a + b the result is positive.2 negative integers a & bAdd the magnitude of a and magnitude of b, the result is negative.Example -2 + -5 = -(2+5) = -(7) = -7a is positive, b is negative, take the difference of the magnitudes, thenif |a| (magnitude of a) greater than |b| (magnitude of b), the result is positive.if |a| (magnitude of a) less than |b| (magnitude of b), the result is negative.Example: 2 + -5 (the difference of magnitudes is 5-2 = 3The negative number has a bigger magnitude, so the answer is negative: -3-2 + 5The difference is still 3, but the positive number has bigger magnitude,so the result is positive: +3
What is the absolute value of -7.61?
Absolute value of any number is just the magnitude without any sign attached to it. For positive numbers the magnitude is the value of the number. For negative numbers just remove the negative sign and you will have the magnitude. In this case the magnitude is 7.61
