- A-type star (Wikipedia)
A-type stars are among the more common naked eye stars, and are white or bluish-white. They have strong hydrogen lines, at a maximum by A0, and also lines of ionized metals (Fe II, Mg II, Si II) at a maximum at A5. The presence of Ca II lines is notably strengthening by this point. About 1 in 160 (0.625%) of the main-sequence stars in the solar neighborhood are A-type stars, which includes 9 stars within 15 parsecs.
- Afton, Minnesota (Wikipedia)
Afton is a city in Washington County, Minnesota, United States. The population was 2,886 at the 2010 United States Census. It lies on a small bay where Valley Creek empties into the St. Croix River, several miles north of its confluence with the Mississippi River.