The major career paths in astronomy are professional research and teaching at a college or university (generally requiring a Master’s degree or PhD), scientific/technical support positions at observatories or planetariums and private industry jobs.
There are no undergraduate astronomy degrees at local universities in eastern Washington. Students would need to transfer to the University of Washington to pursue a BS in Astronomy. Astronomy admissions are typically highly competitive and students with strong backgrounds in physics and math have better chance of admission. If possible, seek out undergraduate research opportunities and summer internships to bolster your options.