Question

Star A: Distance: 30 light years Luminosity: 0.798 LS Color: 515.5 nm Star D: Distance: 748...

Star A:

Distance: 30 light years

Luminosity: 0.798 LS

Color: 515.5 nm

Star D:

Distance: 748 light years

Luminosity: 0.466 LS

Color: 555.6 nm

Star C:

Distance: 406 light years

Luminosity: 0.371 LS

Color: 573.5 nm

Star R:

Parallax: 0.0441"

Flux: 5.18E-11 W/m2

Color: 512.4 nm

Calculate these properties of Star R:

Distance in light years:

Luminosity in Ls:

Temperature in Kelvin:

Which of these stars is the coldest?

Which star is the hottest?

Science   Advanced-Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Star D's Parallax is 0.0351" and its Flux is 7.1E-8 W/m2 Given this information Calculate the...
Star D's Parallax is 0.0351" and its Flux is 7.1E-8 W/m2 Given this information Calculate the distance and luminosity of star D in the following units: Distance in light years: Distance in meters: Luminosity in watts: Luminosity in Ls: Star A's Parallax: 0.0045" Flux: 2.6E-9 W/m2 Given this information calculate the Luminosity of Star A in Ls. Star C's Parallax: 0.0615" Flux: 9.0E-10 W/m2 Given the information Calculate the Luminosity of star C in Ls:
A particular star is d = 40.1 light-years (ly) away, with a power output of P...
A particular star is d = 40.1 light-years (ly) away, with a power output of P = 4.50 ✕ 1026 W. Note that one light-year is the distance traveled by the light through a vacuum in one year. (a) Calculate the intensity of the emitted light at distance d (in nW/m2). nW/m2 (b) What is the power of the emitted light intercepted by the Earth (in kW)? (The radius of Earth is 6.37 ✕ 106 m.) kW What If? Of...
1/ Alpha Centauri A is a star that is remarkably like our Sun...indeed, we can think...
1/ Alpha Centauri A is a star that is remarkably like our Sun...indeed, we can think of it as the Sun’s stellar twin. Alpha Centauri A lies at a distence of 4.4 light-years from Earth, and it has a luminosity of 5.88 x 10^26 W. Calculate the apparent brightness of Alpha Centauri A Suppose you have a light bulb that emits 100 W of visible light. How far away from you would you need to put that light bulb in...
1. The visible region of the sun is known as a. corona b. photosphere c. radiation...
1. The visible region of the sun is known as a. corona b. photosphere c. radiation zone d. chromosphere 2. The average temperature of that part of the sun, which we see, is (a) 6000 k (b) 60,000 k (c) 600 k (d) 15 million k 3. Granulation of the sun is caused by a. sunspots b. prominences c. convection d. radiation 4. Convection zone is located a. next to the core b. between radiation zone and photosphere c. between...
Alpha Centauri A lies at a distance of 4.4 light-years and has an apparent brightness in...
Alpha Centauri A lies at a distance of 4.4 light-years and has an apparent brightness in our night sky of 2.7×10−8 2.7 × 10 − 8 watt/m2 w a t t / m 2 . Recall that 1light−year=9.5×1012km=9.5×1015m 1 l i g h t − y e a r = 9.5 × 10 12 k m = 9.5 × 10 15 m. Suppose you have a light bulb that emits 200 watts w a t t s of visible light....
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT