ok #asknostr - how long does it take for the moon to be fully above the horizon? moonrise is when it first appears on the horizon, as I understand it, but I want to know how long after moonrise the entire moon (whatever portion of it may be visible or not) is above the horizon. #grownostr
Discussion
The moon takes up about 0.5 degrees in the sky. If from horizon to horizon is 180 degrees, and the moon takes about 12 hours to traverse the sky, then it moves 1 degree every 4 minutes (720 minutes/180 degrees). Therefore it takes 2 minutes to clear the horizon.
Thanks for this. I was missing the part about it taking up 0.5 degrees. I had already estimated 15 degrees per hour.
Not sure I ever realized how fast it moves. Moving its complete area every 2 minutes? That is pretty close to observable motion, definitely faster than grass growing or paint drying!