# Homework Help: At what time will a star be seen from a place ?

1. Jun 1, 2017

### Vibhor

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

Honestly speaking I have absolutely no idea about this problem . This is the first time I have seen a problem of this nature .I am not even sure which chapter of Intro Physics text does this problem belong to .

I would really appreciate if someone could help me with the problem .

Many thanks .

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2. Jun 1, 2017

### Matilda Salazar

I don't know but upon reading, this might give you a hint. "The North Star is visible every night in about the same place."

3. Jun 1, 2017

### Vibhor

Sorry I didn't get your hint . Could you elaborate your response .

4. Jun 2, 2017

### ehild

The Earth rotates... When does the green man see the star rising, later or sooner than the blue man does?

5. Jun 2, 2017

### Vibhor

OK .

20° longitude difference = 80 minutes

Option d)

Right ?

6. Jun 2, 2017

### ehild

I hope so. Supposing there are no big building or hills hiding the raising sun :)

7. Jun 2, 2017

### Vibhor

Thank you so much .