Since, historically, Vega has been used as the reference zero-point (having an apparent magnitude around 0.03), I tried doing a simple calculation to find out the apparent magnitude of Fomalhaut using the values for luminosity and distance given in Wikipedia for both of them.

Alternatively worded, in the graph above, when the two stars are next to each other the magnitude will be at it's highest (the tops of the 'm'), but what will be the brighter star be in front or behind the dimer star in the center of the 'm', or at the ends on the 'm'?

Answer to 13.1 What is the apparent magnitude of the Sun as. Your solution’s ready to go! Enhanced with AI, our expert help has broken down your problem into an easy-to-learn solution you can count on.

Jun 19, 2017 · I know the apparent magnitude of the sun, but I'd like the units in lux. Please also direct me to a reliable source if possible.

Jul 25, 2017 · Consider a star with 11.4 visible magnitude, you can easily calculate the flux in W/m^2 because a star with zero visible magnitude has a flux of 3.64 * 10^(-23) W/m^2 . So the flux from the 11.4 mag star should be something like 10^(-27) W/m^2, while with mine and your formula we're off by a long shot. $\endgroup$

Oct 1, 2022 · The absolute and apparent magnitude are simply related by the distance to the source. If the distance is fixed and the apparent magnitude changes, then the absolute magnitude must have changed by the same amount. The absolute magnitude is not called that because it can never change - there are lots of examples of variable stars.

May 30, 2018 · Using this in your first equation, with a mean apparent magnitude of 3.80 gives me an absolute magnitude of $-3.37^{+0.11}_{-0.13}$. The difference from your own calculation is entirely explained by the very different distance I've used.

Question: 1)The star Proxima Centuri is of apparent magnitude 11.05 and Absolute Magnitude +15.4. Select the correct answer for the distance to the star in parsec (pc)? A) 1.3 B) 3.83

Question: Problem 11-3: What is the combined apparent magnitude of a binary system consisting of h stars of apparent magnitudes 3.0 and 4.0? First figure out the combined flux of the two stars compared to the brighter star. mi-m-2.5 logo . log.3.0-4.0 -0.4 f2.15 = 0.4 ? f 0.4f + 14 Now compare the combined magnitude to the magnitude of the 3.0 ...

1) What is the combined apparent magnitude of a binary star system consisting of two stars of apparent magnitudes 8.0 and 9.0? 2) A variable star increases in brightness by a factor of 3. What is the change in its magnitude? 3) What is the distance (in parsecs) to a star whose absolute magnitude is 4.0 and whose apparent magnitude is 19.0?