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| wiki:observational_astronomy:getmagnitudes [2023/11/05 15:26] – created - external edit 127.0.0.1 | wiki:observational_astronomy:getmagnitudes [2023/11/11 13:52] (current) – removed Roy Prouty | ||
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| - | Follow science image reduction [[observational_astronomy: | ||
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| - | Recall the definition of a source magnitude | ||
| - | $$m_1 - m_2 = -2.5\log{\frac{F_1}{F_2}}$$ | ||
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| - | Where $m_1$ and $m_2$ are source magnitudes and $F_1$ and $F_2$ are the fluxes associated with those sources. | ||
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| - | Absent a science frame that has already been calibrated to a flux standard, we can still extract source magnitudes from a science image. For this, we will first justify a proxy for the source flux. | ||
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| - | Recall that radiant, spectral flux is the amount of radiant energy per second per square meter per wavelength. | ||