365 days
Which orbit would that be? The galactic orbit, the solar orbit, the local cluster orbit? From what viewpoint? Above or below the galactic plane, the planetary system plane, from the point of view of a different place in the local cluster than on earth itself?
Any object in a closed orbit moves slowest when it's at the point farthest away from the central body.If the central body happens to be the sun, then the point in the orbit that's farthest from the sun iscalled "aphelion". The earth passes aphelion on July 3 or 4.
Which orbit would that be? The galactic orbit, the solar orbit, the local cluster orbit? From what viewpoint? Above or below the galactic plane, the planetary system plane, from the point of view of a different place in the local cluster than on earth itself?
Perigee is the opposite of appogee. Perigee is the point in the orbit of the moon at which it is nearest to the earth. Apogee the point in the orbit of the moon at which it is furthest from the earth.
The point in the moon's orbit when it is furtherest from Earth is its apogee (app-oh-jee).
That's the point in Earth's orbit called "perihelion".The point in the orbit that's farthest from the sun is "aphelion".
There is one single point in the Earth's orbit where it is closest to the sun. That point is called the "perihelion".
It is the earth's perihelion or, less conventionally, the sun's perigee.
The point in the Moon's orbit where it is furthest from the Earth is called the apogee.
The earth's orbit around the sun is not a perfect circle, so there is a point at which we are nearest to the sun, and a point at which we are farthest from it. The point in the orbit at which we are nearest the sun is called "perihelion". The earth passes that point at some time during the first few days in January. In 2011, it happened on January 3. The point in the orbit at which we are farthest from the sun is called "aphelion". We pass it at some time during the first few days of July.
The point in the orbit of the moon or of an artificial satellite that is most distant from the center of the earth is called the 'apogee'.
Yes, there's a galactic alignment every year. As the earth goes around the sun, at one point the earth, sun, and the center of the galaxy line up.