Question

Vega, a star is located in the constellation Lyra, has a H alpha emission line measured...

Vega, a star is located in the constellation Lyra, has a H alpha emission line measured at wavelength observed os 656.240nm. Given that H alpha emission has a resting measurement of wavelength 656.280nm, What is Vega's radial velocity, Vradical, to three significant figures in unites of m/s? is it moving toward us or away from us? C=300,000km/s

v=c wavelength observed over= C is 300,000km/s
wavelength resting point

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

The answer for above problem is explained below.

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
A spaceship is moving toward Alpha Centauri, the closest star system located 4.2 light-years away, at...
A spaceship is moving toward Alpha Centauri, the closest star system located 4.2 light-years away, at a speed of 0.98c. a) How much time does the trip last as measured from an astronaut onboard? b) How much time does the trip last as measured from an observer on earth. Assume the distance between the earth and Alpha Centauri remain the same. c) What is the distance between the earth and Alpha Centauri as seen from an astronaut onboard the spaceship?
: A spaceship is moving toward Alpha Centauri, the closest star system located 4.2 light-years away,...
: A spaceship is moving toward Alpha Centauri, the closest star system located 4.2 light-years away, at a speed of 0.98c. a) How much time does the trip last as measured from an astronaut onboard? (4 points) b) How much time does the trip last as measured from an observer on earth. Assume the distance between the earth and Alpha Centauri remain the same. (3 points) c) What is the distance between the earth and Alpha Centauri as seen from...
The H-alpha emission line from gas within a elliptical galaxy has a half-width of 6.5 Angstroms,...
The H-alpha emission line from gas within a elliptical galaxy has a half-width of 6.5 Angstroms, representing a spread in velocity from opposite sides of the galaxy due to rotation. If the gas is effectively at a radius of 10 kpc from the center of the galaxy, what is the mass of the galaxy? Also, what is the expected mass of the supermassive black hole at the center of this galaxy?
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...
Stars and galaxies in the distance universe are receding from us with a speed proportional to...
Stars and galaxies in the distance universe are receding from us with a speed proportional to their distance away, v = Hr, where H ≈ 73 m/s/Mpc is the Hubble constant. (a) What is the value of H in SI units? SR units? (Mpc = Mega parsec.) (b) Because they are receding from us, light received from distant stars will be red-shifted. It is common to define the dimensionless red-shift parameter z as λ/λ0 ≡ 1 + z. There is...
3/ which of the following stellar properties is the most fundamental to a star’s main-sequence and...
3/ which of the following stellar properties is the most fundamental to a star’s main-sequence and post-main sequence life? A/ temperature B/ mass C/ luminosity D/ radius 4/ Stars Moppit and Boppit orbit each other as members of a binary star system. Their period of rotation about their combined centre of mass is 10 years. The semi-major axis of Boppit’s orbit around the centre of mass is 15.25 AU. What is the combined mass of Moppit and Boppit? A/ Mmoppit...
do all five questions Question 1 20 pts Ignoring the effects of air resistance, if a...
do all five questions Question 1 20 pts Ignoring the effects of air resistance, if a ball falls freely toward the ground, its total mechanical energy Group of answer choices increases remains the same not enough information decreases Flag this Question Question 2 20 pts A child jumps off a wall from an initial height of 16.4 m and lands on a trampoline. Before the child springs back up into the air the trampoline compresses 1.8 meters. The spring constant...
What tools could AA leaders have used to increase their awareness of internal and external issues?...
What tools could AA leaders have used to increase their awareness of internal and external issues? ???ALASKA AIRLINES: NAVIGATING CHANGE In the autumn of 2007, Alaska Airlines executives adjourned at the end of a long and stressful day in the midst of a multi-day strategic planning session. Most headed outside to relax, unwind and enjoy a bonfire on the shore of Semiahmoo Spit, outside the meeting venue in Blaine, a seaport town in northwest Washington state. Meanwhile, several members of...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT