- #1

Kiwithepike

- 16

- 0

Suppose the Earth produced as much energy per kilogram each second as the sun does. what would be the total energy output of Earth be? how would the absolute magnitudes compare between the sun and earth

You are using an out of date browser. It may not display this or other websites correctly.

You should upgrade or use an alternative browser.

You should upgrade or use an alternative browser.

- Thread starter Kiwithepike
- Start date

- #1

Kiwithepike

- 16

- 0

Suppose the Earth produced as much energy per kilogram each second as the sun does. what would be the total energy output of Earth be? how would the absolute magnitudes compare between the sun and earth

- #2

tiny-tim

Science Advisor

Homework Helper

- 25,838

- 255

Hi Kiwithepike ! Welcome to PF!

Tell us what

How does absolute magnitude depend on total energy?

- #3

Kiwithepike

- 16

- 0

Its the measure of the absolute magnitude of luminosity at 10pc.

- #4

tiny-tim

Science Advisor

Homework Helper

- 25,838

- 255

eg, if you double the energy, what does that do to the absolute magnitude?

- #5

Kiwithepike

- 16

- 0

then, L(s)/(s)= x/m(e) yields

1.42E21 W?

- #6

Kiwithepike

- 16

- 0

it doubles as well

- #7

tiny-tim

Science Advisor

Homework Helper

- 25,838

- 255

it doubles as well

No, absolute magnitude is

Last edited by a moderator:

- #8

Kiwithepike

- 16

- 0

is this correct. M1-M2=2.5log(L1/L2) =>

4.8-M1=2.5log(3E-6) =>

4.8-M1=-13.8 =>

M1=18.6?

And thank you so much for the help and patience with me!

Share:

Chemistry
Bronsted-Lowery help needed

- Last Post

- Replies
- 2

- Views
- 2K

- Replies
- 1

- Views
- 541

- Last Post

- Replies
- 3

- Views
- 610

- Last Post

- Replies
- 2

- Views
- 1K

Chemistry
Help with Gas law problems

- Last Post

- Replies
- 1

- Views
- 908

- Replies
- 2

- Views
- 3K

- Last Post

- Replies
- 7

- Views
- 1K

- Last Post

- Replies
- 4

- Views
- 700

- Last Post

- Replies
- 2

- Views
- 974

- Last Post

- Replies
- 4

- Views
- 912