Question: Assume that the nearest stars to us have an absolute luminosity about the same as the Suns. Their apparent brightness, however, is about 1011 times

Assume that the nearest stars to us have an absolute luminosity about the same as the Sun’s. Their apparent brightness, however, is about 1011 times fainter than the Sun. Form this, estimate the distance to the nearest stars. (Newton did this calculation, although he made a numerical error of a factor of 100).

Step by Step Solution

★★★★★

3.48 Rating (168 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

The apparent luminosity is given by Eq 331 Use that rela... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

P-A-A-C (54).docx

120 KBs Word File

Students Have Also Explored These Related Astrophysics Questions!

The nearest stars to the Sun are in the Alpha Centauri multiple-star system, about 4.0 x 1013 km away. If the Sun, with a diameter of 1.4 x 109 m, and Alpha Centauri a are both represented by cherry...

The distance from the Sun to the nearest star is about 4 x 1016 m. The Milky Way galaxy is roughly a disk of diameter ~1021 m and thickness ~1019. Find the order of magnitude of the number of stars...

A variable star is one whose brightness alternately increases and decreases. For the most visible variable star, Delta Cepheid, the time between periods of maximum brightness is 5.4 days, the average...

PHY5100 - Astronomy Mame: Lab 11 - Hubble's Law Finding the Age of the Universe Introduction An object's spectrum can be used to determine the temperature and chemical composition of that object. A...

The ESA/ESO Astronomy Exercise Series 2 The Distance to M100 as Determined by Cepheid Variable Stars Astronomy is an accessible and visual science, making it ideal for educational purposes. Over the...

Part 1 : HR Diagram In this exercise we will explore the HR diagram. We will look at M15 and be able to calculate certain values such as the age of the cluster and the distance away. We will also...

LUCRETIUS_ ON THE NATURE OF THINGS TRANSLATED BY CYRIL BAILEY FaLLOW 0' BALLIOL COLUGI OXFORD AT THE CLARENDON PRESS P4 G1-J7S E5 /33 ('.1 Oxford University Press, Amtn House, London E.C.4 G1.A5GOW...

Managing Scope Changes Case Study Scope changes on a project can occur regardless of how well the project is planned or executed. Scope changes can be the result of something that was omitted during...

watch the three short clips below then answer the questions Copy and paste the three links below 1) Projectile Motion https://www.nsf.govews/mmg/mmg_disp.jsp?med_id=72205&from= 2) Newton's Second Law...

A 35.2-mL, 1.66 M KMnO4 solution is mixed with 16.7mL of 0.892 M KMnO4 solution. Calculate the concentration of the final solution.

The following information provided below relates to the business of Commercial Telephones, owned and managed by Peter Lucas 2017 2018 Sales Revenue Total expenses Profit before income tax Income tax...

In what two primary areas do formal institutions affect alliances?

Siver Company makes a product with peak sales in May of each year lis sales budget for the second quarter is given below. \ table [ [ , Aorit,Bey,Johe,Total ] , [ Butpeted sales ( all on account ) ,...

Explain how each of the following changes will affect a company?s range of earnings chart such as that shown in Figure 6.2. How would each of the changes affect the attractiveness of increased debt...

Before HTML5, how were sound clips played while a browser displayed a Web document?

The North Valley Real Estate data reports information on homes on the market. a. Let selling price be the dependent variable and size of the home the independent variable. Determine the regression...

Use the data in ECONMATH to answer this question. (i) Logically, what are the smallest and largest values that can be taken on by the variable score? What are the smallest and largest values in the...

If Aaron tunes into his favorite radio station at a randomly selected time, there is a 0.20 probability that a commercial will be playing. a. Interpret this probability as a long-run relative...

4. How will you solve a transportation model when the total demand does not match the total supply?

Please answer the following question! No need to compare with the previous question. Thank you! 4. (UR Model; 30 pts, 10 pts each) Assume the following unit root model without a drift Y; = Yg_1 + 5;,...

1. A company purchases a coal mine for $1,000,000. It estimates that the mine contains $5,000,000 tons of coal and has a five-year life with no salvage value. If the company extracts and sells...

How many different codewords are in a [ 6 3 , 5 7 ] Hamming code? the answer is 2 ^ 3 2