Tonight’s full Harvest Moon to be supermoon rising ahead of SpaceX launch
The first of the year’s only three supermoons will rise tonight with the full moon coming just before midnight and just minutes before a planned launch of a SpaceX rocket.
The near side of the moon will have 100% illumination at 11:47 p.m. when it’s about 224,000 miles from Earth, according to timeanddate.com. The combination of full moon and its proximity to the moon’s closest approach to the planet, or perigee, can make it a supermoon.
The moon’s perigee technically will be 223,580 miles away, but not until 8:37 a.m. Wednesday, according to data maintained on a site run by Fourmilab Switzerland. The moon can range in distance to Earth from about 221,000 miles to as far as about 255,000 miles.
But the moon is still close enough for the near full moon rise Monday at 6:32 p.m. and continuing on through Tuesday night’s waning gibbous phase moonrise to make it seem as much as 30% brighter and 14% larger.
The moonrise itself will enhance the effect of a visually larger moon because of a lensing effect of the Earth’s atmosphere.