Sentences with phrase «orbital periods of»

Among them, large climate oscillations with peak - to - trough amplitude of about 0.1 and 0.251 C, and periods of about 20 and 60 years, respectively, are synchronized to the orbital periods of Jupiter and Saturn.

If, instead, you would look at barycentric Keplerian elements, you would see them change hundreds of times faster, but most of that would be oscillations at the orbital periods of the outer planets like Jupiter and Saturn.

Roughly 3.7 billion years ago, Jupiter and Saturn began a gravitational dance in which the orbital periods of the titans lined up, and for every orbit around the Sun Jupiter made, Saturn made two.

In simple terms — meaning those that this author can understand — the law states that there's a progressive ratio between the orbital periods of planets in a given solar system.

Between 5 and 10 percent of stars surveyed have planets at least 100 times as massive as Earth with orbital periods of a few Earth years or less.

More than 20 percent of stars have somewhat smaller nearby planets, with sizes of several to a few tens of Earth masses and with orbital periods of less than three months.

Almost 1 percent of stars have such giant planets in very close orbits, with orbital periods of less than one week.

Long Period Comets (Non-periodic comets) are comets that do not have confirmed observations at more than one perihelion passage and generally have orbital periods of 200 years or more.

The findings help explain why astronomers have detected few circumbinary exoplanets despite observing thousands of short - term binary stars, or ones with orbital periods of 10 days or less.

We re-evaluate all previously published KOIs with orbital periods of > 50 days to provide a consistently vetted sample that can be used to improve planet occurrence rate calculations.

A notable exception is that most systems have inner planets at orbital periods of ~ 10 days.

The planets have orbital periods of approximately 3.5, 7.6 and 14.9 days.

The more common exoplanet search technique, measuring stellar gravitational wobbles, would require one to two decades and longer to identify the orbital periods of planets at the distances of Jupiter and Saturn.

Therefore, the radial velocity surveys only pick the lowest hanging fruit: Jupiters that have migrated close in to their star, and have orbital periods of literally only a few days.

These newfound worlds all orbit their stars with orbital periods of less than 12 hours.

The short orbital periods of the newfound planets enabled their detection from the small data set — each planet passed its star several times in the 43 - day observation window, dimming the starlight by a small fraction with each orbit.

These semi-major axes in turn correspond to orbital periods of approximately 38.2 + / - 0.8 and 25.5 + / - 0.5 days, respectively.

«Until now with Kepler, we never talked about orbital periods of 4, 5, 6 hours,» says Sanchis - Ojeda.

More importantly, the two planets have orbital periods of 30 days and 61 days, so that the inner planet orbits the star twice for every one orbit of the outer one.

Eventually, this causes celestial bodies to lose orbital energy, and they will have shorter orbital periods of only a few days.»

Their search was sensitive up to distances corresponding to about twice the orbital periods of these so - called hot Jupiters, or about one - tenth of the distance between Mercury and the sun.

«The Bee - Zed asteroid orbits in the opposite direction to planets: The asteroid makes a complete circuit around the Sun every 12 years, corresponding with the orbital period of Jupiter, which shares its orbit but travels in the opposite direction.»

55 Cancri's outer planet, for example, has an orbital period of 14 years, and was therefore only discovered in 2004.

The moon was 10 to 20 times closer to Earth than it is now, and the researchers found that it quickly assumed a tidally locked position with the rotation time of the moon equal to the orbital period of the moon around Earth.

We show that this pulsar is in a binary system with an orbital period of 2.2 hours.

Mars's orbital period of 1.88 years means that if it is on the same side of the sun as one Jupiter - Saturn meeting, it will be nearly on the opposite side the next time around.

Unpoetically named 5737.01, this candidate has an orbital period of 331 days and is 30 % larger than Earth, Mullally says.

Assuming this is the orbital period of hot gas revolving near the black hole, the astronomers deduce that the monster weighs 450,000 to 5 million times more than the sun, agreeing with previous estimates and making the black hole comparable to the 4 - million - solar - mass one at the Milky Way's center — but located in a galaxy 3.9 billion light - years away.

By tracking the frequency at which certain starspots reappeared, Sanchis - Ojeda determined that the star completes a full rotation every 12.5 days — considerably longer than the planet's orbital period of 8.5 hours.

A substellar companion at that distance would imply an orbital period of around a year, or it could be in a highly eccentric orbit with a much greater average distance from Proxima.

Based on photographs taken between 1937 and 1970, Sarah Lee Lippincott reported in 1971 that star A and B are separated by an «average» distance of 147 times the Earth - Sun distance (AU)(of a semi-major axis) in a circular orbit (e = 0.00) of about 2,600 years, in contrast to Josef Hopmann's (1890 - 1975) earlier report in 1958 of an elliptical orbit (e = 0.25) with an orbital period of 3,000 years and an «average» distance of 157 AU (of a semi-major axis) that varies between 118 and 196 AU.

At that distance from the star, such a planet would have an orbital period of about 124 days, or around a third of an Earth year.

Combining optical data taken during the outburst decay, we obtain an orbital period of 2.414 ± 0.005 h, in perfect agreement with the value previously measured from X-ray dips.

Such a planet would have an orbital period of less than five days and would be tidally locked with respect to Star B.

By studying the frequency of dips in the star's light and measuring by how much the light dimmed, the team was able to determine the size and orbital period of the planet.

At that distance from the star, such a planet would have an orbital period of around 4.7 Earth years.

Alternatively, the habitable zone orbits have also be calculated to lie between 1.80 to 3.5 AUs (Jones and Sleep, 2003)-- between the orbital distances of Mars and the Main Asteroid Belt in the Solar System — with an orbital period of two to several Earth years.

The parent comet (Tempel - Tuttle) has an orbital period of a bit more than 33 years, and so we see storms when the Earth happens to pass close behind the comet, such storms lasting only a few hours.

In July 2008, astronomers (Michael Endl and Martin Kürster) analyzed used seven years of differential radial velocity measurements for Proxima Centauri to submit a paper indicating that large planets are unlikely to be orbiting Sol's closest stellar neighbor within its habitable zone — around 0.022 to 0.054 AU with a corresponding orbital period of 3.6 to 13.8 days.

Such a planet would have an orbital period of around 1.6 years.

The orbit of an Earth - like planet (with liquid water) around close - orbiting Stars A and B may be centered as close as 1.06 AU — between the orbital distances of Earth and Mars in the Solar System — with an orbital period of over 384 days (1.05 years).

The orbit of an Earth - like planet (with liquid water) around Star C would be centered around 0.11 AU — well inside the orbit of Mercury in the Solar System — with an orbital period of 24.4 days.

At that distance from the star, such a planet would have an orbital period of about 202 days — less than two thirds of an Earth year.

Such a planet would have an orbital period of around 1.3 Earth years.

The second planet, called Kapteyn c, was found to have a mass at least seven times that of Earth and an orbital period of 121.5 days, which puts it well outside of the star's habitable zone.

The orbit of an Earth - like planet (with liquid water) around this star would be centered around 0.05 AU with an orbital period of about eight Earth days, caused it to be tidally locked with Star C.

On the other hand, stars Aa and Ab have are separated by only 3.76 solar radii, which is about 14.9 times the radius of CM Draconis Aa (Claud H. Lacy, 1977), and have a mutual orbital period of just under 1.27 days (Deeg et al, 1998; Metcalfe et al, 1996; and Claud H. Lacy, 1977).

Abstract: We report the discovery of KELT - 20b, a hot Jupiter transiting a V ~ 7.6 early A star with an orbital period of P ~ 3.47 days.

Here we report observations of the bright star HD 195689 (also known as KELT - 9), which reveal a close - in (orbital period of about 1.48 days) transiting giant planet, KELT - 9b.

Calculations by to Weigert and Holman (1997) indicated that the distance from the star where an Earth - type planet would be «comfortable» with liquid water is centered around 1.25 AUs (1.2 to 1.3 AUs)-- about midway between the orbits of the Earth and Mars in the Solar System — with an orbital period of 1.34 years using calculations based on Hart (1979).