direct motion

Direct and retrograde motion of superior planetclick for a larger image
Direct and retrograde motion of superior planet

direct motion

(prograde motion)
1. The apparent west to east motion of a planet or other object as seen from Earth against the background of stars. Retrograde motion is an apparent motion from east to west. When a superior planet near opposition is overtaken by the Earth, moving with higher relative velocity, its normal direct motion seems to become temporarily retrograde and it appears to undergo a loop or zigzag in the sky (see illustration); the turning points between these motions, when the planet appears motionless in the sky, are known as stationary points.
2. The anticlockwise orbital motion, as seen from the north pole of the ecliptic, of a planet or comet around the Sun or of a satellite around its primary. The body is then said to move in a direct orbit or prograde orbit. A clockwise orbital motion is retrograde. All the planets move in direct orbits.
3. The anticlockwise rotation of a planet, as seen from its north pole. Venus, Uranus, and Pluto have a clockwise retrograde rotation.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006

direct motion

[də¦rekt ′mō·shən]
(astronomy)
Eastward, or counterclockwise, motion of a planet or other object as seen from the North Pole (motion in the direction of increasing right ascension).
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
As Mercury in Sagittarius is about to turn to direct motion, you may have to change your plans, or you might be wanted elsewhere.
As Mercury in Sagittarius is about to turn to direct motion, you may have to change your plans again, or that you might be wanted elsewhere.
However, with Neptune in Pisces suddenly turning to direct motion this weekend things can only get better.
Indeed, with Neptune in Pisces turning to direct motion, this should be a fabulous time.
Venus turns to direct motion. While you don't normally attend every meeting, as the big decisions are made in advance, chances are there is a good reason to show your face today.
For one thing, Pluto turns to direct motion on Monday.
SCORPIO OCTOBER 24 - NOVEMBER 22 A long wait is about to conclude within the next 10 days or so, as first, co-ruler Mars, then security planet Saturn resume direct motion. Mid-April and late June could connect to what's been stuck.
The tiger-colored planet moves from southern Capricornus back into Sagittarius, but halts its retrograde motion on August 28th and then resumes direct motion (eastward against the background stars).
For weekly readings call 0903 658 2003 (75p/min + access charge) ARIES MARCH 21 - APRIL 20 Mercury in Aries turns to direct motion shortly, and it will allow you to sit and talk rationally with others.
DINGBATS(r), 2009: vector trace Scan from DINGBATS(r) 1987 game board For weekly readings call 0903 658 2003 (75p/min + access charge) For weekly readings call 0903 658 2009 (75p/min + access charge) R=255 G=0 B=0 R=185 G=0 B=0 ARIES MARCH 21 - APRIL 20 LIBRA SEPTEMBER 23 - OCTOBER 23 DINGBATS(r) Red DINGBATS(r), 2009: for normal use Mercury in Aries turns to direct motion shortly, and it will allow you to sit and talk rationally with others.
However, with Mercury in Sagittarius turning to direct motion, it's time to make your move.
With Mercury turning to direct motion, what happens towards the weekend should take a load of mind.

Full browser ?