Look out, hopefully the weater will be kind this evening!!!
check out this screen shot. Astro calc is more accurate than Starry Night for me with GRS.
From memory March should be great for a few doubles etc the 23rd at 3am is another and a double shadow on the 30th march at 5am
StarryNight is probably off with GRS because they don't update the Longitude. Jupiter 2 is also great, and you can modify GRS longitude as needed from season to season.
