Cepheids can be used to calculate distance by:
adding absolute and apparent magnitude
...
Social Studies, 29.08.2019 14:10 mervindavisk
Cepheids can be used to calculate distance by:
adding absolute and apparent magnitude
finding the difference between absolute and apparent magnitude
measuring parallax angles
dividing radial velocity by distance
cepheids:
brighten and dim periodically
can be used to measure stellar distance
have been discovered in galaxies other than our own
all of the above
absolute magnitude
is how bright a star appears from earth
depends on luminosity and distance
is a measure of a star's actual brightness
is usually the same as apparent magnitude
!
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