Home (Orbital period)
Home  
 
 
Home » Astronomy » Orbital period


 

Orbital period

Astronomy Orbital elementsOrbital velocity

Definition: orbital period: The time required for an object to make a complete revolution along its orbit.
Space Tragedies9 Planets in Nine DaysAstronomy 101
Related Articles ...

 


What is the orbital period of the Moon?
Answer:
There are two periods involved with the orbit of the Moon around the Earth. This often leads to some confusion, but can be easily understood. Let's investigate! ...

Orbital Period
The time required for an object to make a complete revolution along its orbit. For example, the orbital period for a typical main-belt asteroid is about 4 years.

orbital periods (in asteroid (astronomy): Hungarias and outer-belt asteroids) ...

orbital period
the length of time it takes one body to orbit another
outgassing ...

Orbital Period
the amount of time it takes a spacecraft or other object to travel once around it's orbit.
P
Paleozoic
a geological term denoting the time in Earth history between 570 and 245 million years ago.

Orbital period -- The length of time required for a body to complete one full (closed) orbit.

[edit] Orbital period
Main article: Orbital period
The orbital period is simply how long an orbiting body takes to complete one orbit.

Orbital period
1.00 y (365.25 days)
Period of rotation (w/ respect to the Sun) ...

Orbital Period
Using data from an observation of and one of , determine their oribtal periods.
Stellar Rotation Period ...

Orbital period: 550.48 days (retrograde orbit)
Radius: 110 km
Mass: 4 x 10 18kg ...

Orbital period (days)27.32166
Average length of lunar day (days)29.53059
Mean orbital velocity (km/sec)1.03 ...

Orbital period
The orbital Periodicity is the time taken for a given object to make one complete orbit about another object.

The orbital periods and distances of binaries vary enormously. Some systems are so close that the surfaces of the stars are practically touching each other and can exchange material.

The orbital period of a planet or star can be computed by knowing the masses and separation of two objects.
Study Astronomy Online at Swinburne University
All material is © Swinburne University of Technology except where indicated.

The orbital period of Phobos around Mars is 7 hours and 39 minutes. This short period means that it travels around Mars twice in a sol. An observer at a suitable point on the planet would see Phobos rise and set twice in a sol.

The orbital period of the two stars about their common center of mass is 17.4 days. The apparent magnitude of the two stars dims by about 0.1 magnitude when the smaller star passes in front of the larger one.

The orbital period is of interest to operations, although it is not one of the six Keplerian elements needed to define the orbit.

has an orbital period of 557 years, and currently lies at almost its maximum possible distance from the Sun (aphelion).

Pluto's orbital period is apparently exactly 1.5 times that of Neptune"the two planets are locked into a 3:2 resonance (two orbits of Pluto for every three of Neptune) as they orbit the Sun.

With an orbital period (sidereal period) of 164.88 Julian years, Neptune will soon return (for the first time since its discovery) to the same position in the sky where it was discovered in 1846.

Deimos' orbital period around Mars is longer than Phobos' as it is further out. It takes Deimos 30 hours and 18 minutes to orbit the planet once.

The Moon's orbital period is 27.322 days. Because of this motion, the Moon appears to move about 13° against the stars each day, or about half of a degree per hour.

The Moon's orbital period is exactly equal to its rotational period. That means the Moon turns to face the Earth as it revolves around us so we see only one side of the Moon from Earth. Again, this behaviour is similar to that found in dancing.

What is the orbital period of Saturn?
At what distance does Titan orbit Saturn?
What is the diameter of Titan?
What are other names for Titan?
What is the largest of Saturn's moons?
Wmat makes up the atmosphere on Mars?
Who was Cleomedes?

The reducing orbital period represents a loss of energy, which can only be accounted for by gravitational radiation.

Sometimes the orbital period P is measured instead of the orbital velocity. The orbital period is the time it takes the object to travel the circumference of its orbit (for a circle, the circumference = 2pr, where p is approximately 3.1416).

With a one-year orbital period around the Sun, the object was initially thought to be a manmade rocket stage - and there is still some speculation that it might be the spent rocket booster from ESA's Venus Express mission - but NASA's Near Earth ...

1.88 = t = Mars orbital period in Earth years
With about 365.25 days making up Earth's orbital period, we figure the number of Earth days in a martian year:
1.88 x 365.25 days = t ...

A comet having an orbital period greater than 200 years and usually moving in a highly elliptical, eccentric orbit. Comets have orbits that take them great distances from the Sun. Most long-period comets pass through the inner solar system only once.

Jupiter's 12-year orbital period corresponds to the dozen constellations in the zodiac. As a result, each time Jupiter reaches opposition it has advanced eastward by about the width of a zodiac constellation.

= orbital period. 3. Specifically, the interval between passages at a fixed point of a given phase of a simple harmonic wave; the reciprocal of frequency. 4.

The two stars have a orbital period of 300 years. The brightness of the two stars differ from each other about 5 mag.
Viewed with binoculars the 4th mag orange giant omicron 1 Cyg forms a nice wide double with 30 Cyg.

Xi Bootis B goes around Xi Boo A (the brighter and more massive of the two, placed at the cross) in the clockwise direction with an orbital period of 151.6 years at an average separation of 33.5 Astronomical Units.

Long-period Comets (comets with an orbital period over 200 years and up to 30 million years): The Oort Cloud is a cloud of rocks and dust that may surround our solar system. This cloud may be where long-period comets originate.

03 million km, diameter 700 km, orbital period 119 days, synodic period 177 days.

Comets are sometimes classified according to the length of their orbital periods.

The most convincing concerns radio-timing observations of a pulsar located in a binary star system with an orbital period of 7.75 hours.

The prototype, which lies in the constellation Hercules and has an orbital period of 3.

COMET P/HALLEY - Comet with 76-year orbital period. Images returned by the Giotto Mission revealed its nucleus was a dark (albedo 0.04-0.05), peanut-shaped body, ~15 km long and 7-10 km wide; ...

The general relationship that the orbital period squared is proportional to the orbital radius cubed is originally due to Kepler and is known as Kepler's Third law.

This is called a sidereal month, and reflects the corresponding orbital period of 27.3 days The moon takes 29.

Orbital period 88 days; Vorb 47.9 km s-1. Rotation period 58.646 days, exactly 2/3 of its orbital period. Oblateness < 0.001. Synodic period 116 days. Albedo 0.06. Maximum elongation 28°.

There may have been an unconfirmed detection of a substellar companion around Ross 248 with an orbital period of eight years.

Also known as Saturn IV (or S4), Dione is 695 mi (1,120 km) in diameter, orbits Saturn at a mean distance of 234,500 mi (377,400 km), and has an orbital period of 2.

Orbital period 11.86 years, mean orbital velocity 13.06 km s-1. Synodic period 398.9 days. Albedo 0.51. Surface temperature about 120 K.

Prior to 1965, astronomers believed that Mercury's sidereal rotation matched its orbital period of 88 days (synchronous rotation). This belief was reinforced by the chance coincidence of six 58.

' The orbital period of the planet is simply the time between successive transits. We use Johannes Kepler’s 3rd Law of Planetary Motion to calculate the average distance of the planet from its star from the orbital period.

The orbital period is 24 hours (equal to the earth's rotational period). A geostationary orbit is geosynchronous, circular and has zero inclination.

(To determine the position at a particular time we would also need the orbital period P and some sort of initial point, say the time T when the star was at "perihelion".) From the apparent orbit we can determine 5 parameters: the eccentricity and ...

Orbital periods are more than 100 million years. These motions are studied by measuring the positions of lines in the galaxy spectra.

Its almost circular orbital period is 224.7 Earth days. A 0.76 albedo makes Venus the brightest planet, earning it the nickname 'the Morning Star'.

Two days later, a 6 second rocket burn changed the orbital period to just under 12 hours with a periapsis of 1387 km.

Geosynchronous Orbit The orbit of a satellite in which the orbital period of the satellite is equal to Earth's period of rotation.

5 Venus radii, the distance from Venus is about the same as our Moon's distance from the Earth. This does not fit with the orbital period of 11 days, which is about one-third of the orbital period of our Moon.

Kepler's third law: The square of any planet's orbital period is proportional to the cube of its mean distance from the Sun.
Light Curve
A plot showing how the light output of a star (or other variable astronomical object) changes with time.

A situation in which the rotational and orbital periods of an orbiting body are equal, so that the same side is always facing the companion object.
synergistic effect - (n.)
An effect much greater than the sum of the expected effects.

Trojans:
Small bodies having, on average, the same orbital period of a planet. They are located around the so-called L4 and L5 Lagrange equilibrium points. The latter form, with the Sun and the planet, two equilateral triangles. ...

Resonance - The repetitive gravitational tug of one body on another when the orbital period of one is a multiple of the orbital period of the other
Retrograde Motion - The westward revolution of a solar system body around the Sun ...

Sun's speed ~220 km/s
Sun's orbital period ~200 million yrs
about 50 rotations since birth of galaxy
Kepler's law ---
M ~ 10 11Msun inside of Sun's orbit ...

See also: Period, Orbit, Earth, Solar, Distance