Sentences with phrase «hypothetical planet»

The problem of evolutionary determinism is often brought up in relation to the hypothetical extraterrestrial life on hypothetical planets in other solar systems.
Scientists say the possibility a giant hypothetical planet was commandeered by the sun is «almost zero.»
The crucial consideration is that if the hypothetical planets actually exist, none of them can be at any single moment identical in the states of every component with the earth as it was at any point of its history.
According to the researchers» calculations, such a hypothetical planet would complete one orbit around the Sun roughly every 17,000 years and, at its farthest point from our central star, it would swing out more than 660 astronomical units, with one AU being the average distance between Earth and the Sun.
Finally, the hypothetical planet might experience about the same amount of thermal escape, also called Jeans escape.
The brightness of a red dwarf at extreme ultraviolet (UV) wavelengths combined with the close orbit would mean that the hypothetical planet would get hit with about 5 to 10 times more UV radiation than the real Mars does.
Another paper published earlier this year presented the results of numerical simulations providing a range of possibilities for the mass and orbit for such a hypothetical planet, that could account for the observed clustering of eKBO orbits.
That seemed logical, so Le Verrier called the hypothetical planet Vulcan.
They then measured the likelihood of each one producing its current orbit in the event that its host planet was responsible for ejecting the hypothetical planet, an incident which would have caused significant disturbance to each moon's original orbit.
LONELY OUTPOST: The isolated galaxy MCG +01 -02-015 resides in a void so desolate that inhabitants of a hypothetical planet here could not see other galaxies without advanced telescopes.
But on a hypothetical planet orbiting the companion star to Sirius, gravitational lensing would be easy to notice whenever Sirius was eclipsed by its companion, Russell pointed out.
The astronomers are working to establish what the flare did to the known giant planet and any hypothetical planets further out.
Despite an intensive search for a hypothetical Planet X, pursued with fanaticism by wealthy eccentric Percival Lowell, it took another 84 years after Neptune's discovery before Clyde Tombaugh discovered Pluto.
This artist's illustration depicts a view of the night sky from a hypothetical planet within the youthful Milky Way galaxy 10 billion years ago.
On a hypothetical planet, billions of light - years from Earth, a light started flashing toward Earth every second.
The hypothetical planet's darkside ice cap is backlit from a nearby white dwarf in the distance.
Artist's conception of the view of a hypothetical planet around a distant red giant star.
The success of the search for Neptune based on its perturbations of Uranus» orbit led astronomers to place great faith in this explanation, and the hypothetical planet was even named Vulcan.
An observer on a hypothetical planet orbiting around either Alpha Centauri A or Alpha Centauri B would see the other star of the binary system as an intensely bright object in the night sky, showing a small but discernible disk while near periapse: A up to 210 arc seconds, B up to 155 arc seconds.
Assuming this hypothetical planet had a low orbital inclination with respect to the mutual orbit of Alpha Centauri A and B, then the secondary star would start beside the primary at «stellar» conjunction.
Also, if another similar planet orbited at 0.71 AU from Alpha Centauri B (so that in turn Alpha Centauri B appeared as bright as the Sun seen from the Earth), this hypothetical planet would receive slightly more light from the more luminous Alpha Centauri A, which would shine 4.7 to 7.3 magnitudes dimmer than Alpha Centauri B (or the Sun seen from the Earth), ranging in apparent magnitude between − 19.4 (dimmest) and − 22.1 (brightest).
[106] Theoretical studies on the detectability via radial velocity analysis have shown that a dedicated campaign of high - cadence observations with a 1 - meter class telescope can reliably detect a hypothetical planet of 1.8 M ⊕ in the habitable zone of B within three years.
An observer on the hypothetical planet would notice a change in orientation to very - long - baseline interferometry reference points commensurate with the binary orbit periodicity plus or minus any local effects such as precession or nutation.
Of course, it all depends on the numbers, but if there were an exo - earth with a strong enough magnetosphere to maintain its oceans and atmosphere, and it were subject to periodic flares that irradiated the surface, then I would not rule out a biosphere on that hypothetical planet.
-- to model atmospheric spectral signatures (the light fingerprint of a planet or moon), including biosignatures of known and hypothetical planets to explore whether or not they could be habitable.
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