What evolutionary phase follows the main sequence for a K-type star, although less destructively than for the Sun?
Answer
Subgiant phase, eventually becoming a red giant
When a K-star exhausts its core hydrogen, it will begin to expand into a subgiant phase, eventually becoming a red giant, though a much less luminous one than that of a G-star.

Related Questions
What is the typical main-sequence lifespan expected for K-type stars?What common moniker is given to K-type stars due to their extended, stable lifetime?What is the general mass range for K-type main-sequence stars in solar masses?How is the luminosity of a K-type star generally scaled compared to the Sun?Which spectral class is immediately hotter and brighter than K-type stars?Compared to M-dwarfs, what specific advantage do K-stars offer regarding their habitable zone?What is the approximate surface temperature range (in Kelvin) for K-type stars?What characteristic of K-stars reduces the intensity of destructive stellar events compared to M-dwarfs?What evolutionary phase follows the main sequence for a K-type star, although less destructively than for the Sun?In the standard stellar sequence from hottest to coolest, where are K-type stars positioned?