I'd do something like forcibly change the time of day to pre-dawn and at the same time change the sun to appear like the moon.
Sounds like it would work at any rate.
perhaps you could do a quick script on this so that when the flare passes the horizon, it changes the location of the flame to the opposite horizon behind you, then changes the flare to a moon. you could probably do this while keeping it dark like nighttime. you would have to do the same to remake the sun as well though.
overall, it is possible, and easy for anyone who actually knows how to script, and know the functions to change them at the same time. (which I don't.)