Visible Stars

How many stars can you see? There are about 6000 stars which are visible with the unaided human eye, so at any given time you can see a maximum of about 3000 stars. The apparent luminosity necessary for unaided viewing is about magnitude +6.

Index

Star concepts

Reference
Kaufmann
Ch. 2
 
HyperPhysics***** Astrophysics R Nave
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