Please use Starwalk app to check out September 20, 2017.   It is a much better fit for Rev 12, as it includes:
- giving birth to Jesus (Jupiter the king planet)
- crown of twelve stars (9 fixed stars of Leo + 3 wandering stars (planets))
- falls on Rosh Hashanna

I hope that this is a mid-trib sign, and backing up 1260 days from this date, puts us right around the time of Passover 2014.