finding low temp stars

Read in detail an article at SciTechDaily. It's entitled Nearly 100 Cool New Worlds Found in Our Cosmic Backyard With Key Help From Citizen Scientists.

It describes how Backyard Worlds volunteers, using survey and archival data, discovered roughly 100 low-temperature brown dwarfs near the Sun, with one as close as 23 light-years. 

You too can contribute, to this project, or others at Zooniverse.