I received a phone call around 6:38 in the evening on december 12, 2019. my friend billyjoe welling called me and told me to look west over the white tank mountains at a very bright light in the sky. when i open my front door i immediately noticed the light. it sat there for quite some time roughly 15 minutes and slowly descended from a 45â° angle to roughly a 33â° angle. i noticed it was stationary because civilian aircraft were flying above it and i could see their anti-collision lights flashing. i know being an air force fighter aircraft mechanic it was not one of our planes out at luke air force base. i have seen previous settings but they were all to the south, this one was unique in the fact that it was coming from the west this time.