Sentences with phrase «stable system of planets»

Not exact matches

Julia Fang and Jean - Luc Margot at the University of California, Los Angeles, wanted to find out whether other planetary systems are full, or if they also have unoccupied but stable orbital slots in between their planets.

Fang and Margot discovered that about a third of the stable two - and three - planet systems they modelled would go haywire if they added a world, rising to nearly half for four - planet systems (The Astrophysical Journal, doi.org/k6s).

«What are the Earth - system processes that determine the ability of the [planet] to remain in a stable state?»

They eliminated those with orbital radii less than one tenth that of Earth's, because at that distance moon systems might not remain in stable orbits around their planets on billion - year timescales.

While the Solar System may be stable, the movements of the planets are not as predictable as you would think.

An Earth - type planet could have liquid water in a stable orbit centered around 0.036 AU from Star B — well within the orbital distance of Mercury in the Solar System.

If so, then conditions would be more favorable for the existence of stable orbit for an Earth - like planet (with liquid water) centered around 1.5 AU from around Iota Persei — around the orbital distance of Mars in the Solar System.

An Earth - type planet could have liquid water in a stable orbit centered around 1.18 AU from Star A — between the orbital distances of Earth and Mars in the Solar System.

A star with multiple planets around it is gravitationally stable, according to the theory, while a star that is part of a close - knit system of stars would have a more unstable system because of each star's massive gravity.

For an Earth - type planet around HD 189733 A to have liquid water at its surface, it would need a stable orbit centered around 0.5 AU — between the orbital distances of Mercury and Venus in the Solar System (with an orbital period around 150 days assuming a stellar mass around 82 percent of Sol's.

Titan is the second largest moon in the solar system, after Jupiter's moon Ganymede, and it's sometimes called a planet - like moon: It's the only other world in our neighborhood to feature stable bodies of liquid on its surface, and it has a thick atmosphere made mostly of nitrogen.

Test simulations of the orbits of the three planets around 61 Virginis suggest that the planetary system's orbital configuration is dynamically stable because of low orbital eccentricities for at least 365 million years.

If so, then conditions would be more favorable for the existence of stable orbit for an Earth - like planet (with liquid water) centered around 1.15 AU from around 15 Sge — between the orbital distances of Earth and Mars in the Solar System.

Assuming that the spectroscopic companion B does not preclude a stable inner planetary orbit, the distance from Star A where an Earth - type planet would be «comfortable» with liquid water is centered around only 0.457 AU — between the orbital distances of Mercury and Venus in the Solar System.

If so, then conditions would be more favorable for the existence of stable orbit for an Earth - like planet (with liquid water) centered around 1.12 AU from around 37 Gem — between the orbital distances of Earth and Mars in the Solar System.

An Earth - type planet could have liquid water in a stable orbit centered around 3.5 AU (within a predicted habitable zone ranging between 2.3 and 4.8 AUs) from Star A — between the orbital distances of the Main Asteroid Belt and Jupiter in the Solar System (NASA Stars and Exoplanet Database).

-- «Global Commons in the Anthropocene: World Development on a Stable and Resilient Planet» — lead authors Nebojsa Nakicenovic of the International Institute for Applied Systems Analysis and Johan Rockström of the Stockholm Resilience Center.

Virtually none of these people who speak of the «doom» of our earthly environment are scientists...» He insisted that our planet had «a remarkably stable life - support system» and that «the natural sources of contamination... still far outweigh all of man's contributions, taken on a global scale.»