What constellation is July 12?

Cancer was born in July of Gregorian calendar 12. People born between June 22nd and July 22nd are all cancer, and July 12 in the solar calendar is between June 22nd and July 22nd, so people born in July 12 in the solar calendar are all cancer. Cancer was born before Gemini, whose date range is May 2 1 to June 2 1.