There is one that I can think of, which is Sigma Draconis. According to Wikipedia, its spectra is K0V, and it is indeed a solitary main sequence star. It's 18 lightyears away and has an apparent magnitude of over +4.5, which is significantly dimmer than the Andromeda galaxy - so it isn't the brightest but it's pretty high for a star of its class. But to put it in perspective, our Sun has well over double its intrinsic luminosity.

There is one that I can think of, which is Sigma Draconis, but it is far beyond +3 magnitude. According to Wikipedia, its spectra is K0V, and it is indeed a solitary main sequence star. It's 18 lightyears away and has an apparent magnitude of over +4.5, which is significantly dimmer than the Andromeda galaxy - so it isn't the brightest but it's pretty high for a star of its class. But to put it in perspective, our Sun has well over double its intrinsic luminosity.

There is one that I can think of, which is Sigma Draconis. According to Wikipedia, its spectra is K0V, and it is indeed a solitary main sequence star. It's 18 lightyears away and has an apparent magnitude of over +4, so it isn't the brightest but it's pretty high for a star of its class. But to put it in perspective, our sun has well over double its luminosity.

There is one that I can think of, which is Sigma Draconis. According to Wikipedia, its spectra is K0V, and it is indeed a solitary main sequence star. It's 18 lightyears away and has an apparent magnitude of over +4.5, which is significantly dimmer than the Andromeda galaxy - so it isn't the brightest but it's pretty high for a star of its class. But to put it in perspective, our Sun has well over double its intrinsic luminosity.