cherryblossom
VIP Member
I'm fascinated by the vastness and complexities of the universe and the cosmos, our galaxy and the solar system. Although I'm still struggling to understand even the basics (physics was never my best subject:rolleyes:), I can't help but be amazed by our night sky.
Tonight (Saturday) is a full moon. But not only is it a full moon, it will also be the biggest and brightest moon for nearly 20 years when it rises into the night sky from the east at sunset today. Scientists are calling it a super perigee moon.
Because the moon orbits the earth in an oval shape, the distance between the moon and the earth changes. The occurrence of a full moon when it's closest to Earth only happens once every 18 years or so. Perigee is the point where the moon makes its closest pass to Earth during its oval-shaped orbit. When it happens during a full moon, the moon seems up to 14 percent bigger and 30 percent brighter than normal, according to a NASA release.
When the moon is closest to the Earth (tonight) it will be still be 221,000 miles away (according to NASA), but that is 31,000 miles closer than when the moon is its farthest point from the Earth.
Just to try to put that into some sort of perspective, the circumference of the earth is almost 25,000 miles, and the distance between London and Sydney is about 10,500 miles.
I will be looking out for a very large bright moon tonight, just after sunset (and hopefully before it clouds over!) - it should be a bright night!!
(Source)
Tonight (Saturday) is a full moon. But not only is it a full moon, it will also be the biggest and brightest moon for nearly 20 years when it rises into the night sky from the east at sunset today. Scientists are calling it a super perigee moon.
Because the moon orbits the earth in an oval shape, the distance between the moon and the earth changes. The occurrence of a full moon when it's closest to Earth only happens once every 18 years or so. Perigee is the point where the moon makes its closest pass to Earth during its oval-shaped orbit. When it happens during a full moon, the moon seems up to 14 percent bigger and 30 percent brighter than normal, according to a NASA release.
When the moon is closest to the Earth (tonight) it will be still be 221,000 miles away (according to NASA), but that is 31,000 miles closer than when the moon is its farthest point from the Earth.
Just to try to put that into some sort of perspective, the circumference of the earth is almost 25,000 miles, and the distance between London and Sydney is about 10,500 miles.
I will be looking out for a very large bright moon tonight, just after sunset (and hopefully before it clouds over!) - it should be a bright night!!
(Source)