HD 131496
HD 131496 is an evolved subgiant star in the constellation Boötes. With an apparent visual magnitude of 7.9 it is too faint to be visible to the naked eye. Stars like HD 131496 are sometimes referred to as "retired A-stars", since they would have been A-type stars while on the main sequence. This name is most commonly used in connection with the search for extrasolar planets, where they are useful because these evolved stars are cooler and have more spectral lines than their main sequence counterparts, making planet detection easier.
Q6472
evolved
Concept
Q6227
subgiant star
Concept
Q8667
Boötes
CEL
Q25377588
A-type stars
Concept
Q3450
main sequence
Concept
Q44559
extrasolar planets
Concept
Q212111
spectral lines
Concept
Q4039845
HD 131496
CEL
Q4039845
HD 131496
CEL
+7.9^^http://www.w3.org/2001/XMLSchema#decimal
7.9
NUMBER
constellation
instance of