2. Magnitudes Flashcards
1
Q
Photometric systems
A
Defined by the sets of filters which are used to isolate individual wavelength ranges in order to measure a monochromatic flux
2
Q
Colour indices
A
Provide crude information about the spectra of astronomical sources and can be used to estimate the temperatures of stars
3
Q
Absolute magnitudes
A
The magnitude an object would have if it were 10 parsecs away
