Timeline for Why do astronomers use supernova to measure distance in space?
Current License: CC BY-SA 3.0
6 events
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| Mar 28, 2017 at 22:15 | comment | added | Ken G | Also be aware that there is a kind of misnomer in astronomy that a "standard candle" means a class of objects with the same luminosity. Actually, the way astronomers use the term is simply a class of objects whose luminosities can be figured out via some other observation, so you know the luminosity, even if it's not the same across the class. Cepheids are like that, and to some extent, so are type Ia supernovae. | |
| Mar 28, 2017 at 6:36 | history | edited | ProfRob | CC BY-SA 3.0 |
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| Mar 17, 2015 at 1:31 | vote | accept | user6760 | ||
| Mar 16, 2015 at 7:47 | comment | added | ProfRob | @user6760 Yes. The redshift measurement is usually far more precise than the distance measurement. | |
| Mar 16, 2015 at 0:49 | comment | added | user6760 | Hi your explanation is clear for me to understand, am I right to say that shifting of wavelength of light tells whether object is moving away to towards us and brightness tells distance between object and us and by comparing with supernova increases the accuracy in our measurement? | |
| Mar 15, 2015 at 18:08 | history | answered | ProfRob | CC BY-SA 3.0 |