Question

Given that the B-band apparent magnitude of a star is 10.0 What will be the B-band magnitude of a second star which is a million times fainter than the above star? What will be the apparent magnitude of the first star if its distance is increased 100-fold? If the intrinsic B-V colour of the first star is 2.0, and the V-band dust extinction along the line of sight is $A_V = 3.1$, what will be the apparent V-band magnitude of the star?

Name: Given that the B-band apparent magnitude of a star is 10.0 What will be the B-band magnitude of a second star which is a million times fainter than the above star? What will be the apparent magnitude of the first star if its distance is increased 100-fold? If the intrinsic B-V colour of the first star is 2.0, and the V-band dust extinction along the line of sight is AV = 3.1, what will be the apparent V-band magnitude of the star?
Uploaded: 2020-03-17T11:04:23-08:00
Duration: 4 min 31 s
Channel: Tony Ni

          Given that the B-band apparent magnitude of a star is 10.0 What will be the B-band magnitude of a second star which is a million times fainter than the above star? What will be the apparent magnitude of the first star if its distance is increased 100-fold? If the intrinsic B-V colour of the first star is 2.0, and the V-band dust extinction along the line of sight is $A_V = 3.1$, what will be the apparent V-band magnitude of the star?

Given that the B-band apparent magnitude of a star is 10.0 What will be the B-band magnitude of a second star which is a million times fainter than the above star? What will be the apparent magnitude of the first star if its distance is increased 100-fold? If the intrinsic B-V colour of the first star is 2.0, and the V-band dust extinction along the line of sight is AV = 3.1, what will be the apparent V-band magnitude of the star?

Added by Timothy J.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Tony Ni

03/17/2020

Step 1

5 log(f2/f1) Where m1 is the magnitude of the first star, m2 is the magnitude of the second star, and f1 and f2 are the fluxes of the first and second stars, respectively. Given that the second star is a million times fainter than the first star, we can Show more…

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Given that the B-band apparent magnitude of a star is 10.0 What wili be the B- band magnitude of a second star which is a million times fainter than the above star? What will be the apparent magnitude of the first star if its distance is increased 100-fold?If the intrinsic B-V colour of the first star is 2.0,and the V band dust extinction along the line of sight is Av=3.1,what will be the apparent V-band magnitude of the star?