There's a bright "star" shining in the east after dark. It's Jupiter, which is now approaching it's biggest, brightest and ...

The Mercury challenge: With the ecliptic—the centerline of the zodiac and plane of Earth’s orbit—making a shallow angle with ...

(The Moon's orbital plane is flattened back toward the ecliptic, at just a 5.1° inclination.) This means the Moon drifts north and south over the course of a lunar month, above and below its own ...

whose plane makes a large angle to that of the ecliptic, the resisting medium at that distance apparently having had little effect on its motion. The solar system, in the opinion of Prof.

The invisible points in the sky where the moon’s path crosses the ecliptic plane are called either the north node (in the northern hemisphere) or the south node (in the southern hemisphere).

correctly as being “surrounded by a thin flat ring, nowhere in contact with it, and inclined to the ecliptic ... inclination of its equator to the plane of its orbit, 27 degrees, is such ...