There is an “amazing” or “wondrous” star in the sky. What is this star?

In principle, any star in the sky can be considered amazing – the world of stars is so diverse. However, “Amazing” or “Wonderful” (Latin for “Mira”) is called the Kit, which changes its brilliance in a very large range (2, m0 – 10, m1). It belongs to the class of long-period variable stars – red giants with very low surface temperatures (about 2000 ° C).