Suppose a star has a luminosity of 9.0×1029 watts and an apparent brightness of 9.0×10−15 watt/m2 . How far away is it? Give your answer in both kilometers and light-years.
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Suppose a star has a luminosity of 9.0×1029 watts and an apparent brightness of 9.0×10−15 watt/m2...
Suppose a star has a luminosity of 6.0×1026 watts and an apparent brightness of 4.5×10−12 watt/m2 . How far away is it? Give your answer in both kilometers and light-years.
ReviewI ConstantsI Periodic Table Use the inverse square law for light to answer each of the following questions Part C Suppose a star has a luminosity of 6.0x1028 watts and an apparent brightness of 2.0x10-12 watt/m2. How far away is i? Give your answer in both kilometers and light-years Express your answer using two significant figures km Submit Part D Express your answer using two significant figures d- light - years Submit Request Answer
The apparent brightness of a star is 1.0 × 10-12 W/m2 and the peak wavelength is 600 nm. Estimate its distance from us. 0.090 pc 0.90 pc 900 pc 9.0 pc 90 pc I do not understand how 179.24 pc relate to the answer choices I am given.
. [5 marks] The average apparent brightness of a particular Type I Cepheid variable in a distant galaxy is found to be 4.30 x10-17 W/m2 ; the period of the Cepheid is 30 days. What is the distance to the galaxy? Give your answer in parsecs and in light years. [Make use of Figure 19-20 on page 553 of our textbook to read off what the luminosity of this Cepheid would be in units of L; use the vertical scale...
The light at the Earth from a certain star has an intensity of about 80.5×10-8W/m2. If the star emits radiation with the same power as our Sun, how far away is it from Earth? NOTE: Use 1000 W/m^2 as the intensity of the Sun at the Earth!
The light at the Earth from a certain star has an intensity of about 83×10-8W/m2. If the star emits radiation with the same power as our Sun, how far away is it from Earth? NOTE: Use 1000 W/m^2 as the intensity of the Sun at the Earth!
A star has apparent magnitude 10.0 and absolute magnitude 4.5. How far away is it? Express your answer using two significant figures.
Suppose your planet at 1 meter from the ball represents a distance of 4 x 10^7 km from the star. The next closest star to the Sun is 4 x 10^13 km away. How far away from the model star would you have to be for the distances in the system to be to scale? Express your answer in meters and kilometers. From the correctly scaled distance, could we actually see the planet as it moves in front of the...
9) How distant is a star whose modulus is -7.5? 10) If its apparent magnitude (m) = +13.5 and absolute magnitude (M) = +10, what is the distance to a star? PROBLEMS TO COMPLETE FOR PARALLAX 11) A star has a parallax of .025 seconds of arc—what is its distance in parsecs? The nearest star has a parallax of 76 arc seconds—what is its distance in light years? 12) If star were 2.40 pc from Earth, what would its distance...
2] How far away is a RR Lyrae variable star if it has a period of 0.5 days and a brightness of 2.3 x 10^-11 W/m^2? Answer: 8.14 x 10^18 m, 860 ly