The received radiation is compared with the radiation from a hypothetical black body which subtends the same solid angle as the visible disk of the planet.

This hypothetical gas giant planet has been nicknamed Tyche.

Lowell's greatest contribution to planetary studies came during the last decade of his life, which he devoted to the search for Planet X, a hypothetical planet beyond Neptune.

Terraforming ( literally, " Earth-shaping ") of a planet, moon, or other body is the hypothetical process of deliberately modifying its atmosphere, temperature, surface topography or ecology to be similar to the biosphere of Earth, in order to make it habitable by humans.

* Tyche ( hypothetical planet )

From the perspective of an observer on a hypothetical planet around Vega, the Sun would appear as a faint 4. 3 magnitude star in the Columba constellation.

In December 1859, Le Verrier received a letter from a French physician and amateur astronomer called Edmond Modeste Lescarbault, who claimed to have seen a transit of the hypothetical planet earlier in the year.

Between 1866 and 1878 no reliable observations of the hypothetical planet were made.

Both described the colour of their hypothetical intra-mercurial planet as " red ".

simple: Vulcan ( hypothetical planet )

Its modern use in science fiction literature contrasts " Earth " ( the planet ) with outer space or hypothetical other planets with sapient life.

Artist's impression of the sight from a ( hypothetical ) moon of planet HD 188753 Ab ( upper left ), which orbits a triple star system.

* Phaeton ( hypothetical planet ), a hypothetical location between Mars and Jupiter, often cited in science fiction

Theia's mythological role as the mother of the Moon goddess Selene is alluded to in the application of the name to a hypothetical planet which, according to the giant impact hypothesis, collided with the Earth, resulting in the Moon's creation.

* Tyche ( hypothetical planet )

He believed this hypothetical planet of Nibiru to be in an elongated, elliptical orbit in the Earth's own Solar System, asserting that Sumerian mythology reflects this view.

The system includes two belts of rocky asteroids: one at about 3 AU and a second at about 20 AU, whose structure may be maintained by a hypothetical second planet, Epsilon Eridani c. Epsilon Eridani harbors an extensive outer debris disk of remnant planetesimals left over from the system's formation.

A doomsday device is a hypothetical construction — usually a weapon, or collection of weapons — which could destroy all life on a planet, particularly the Earth, or destroy the planet itself, bringing " doomsday ", a term used for the end of planet Earth.

) Therefore a hypothetical astronomer on an extrasolar planet would observe a small " wobble " in the Sun's motion.

The star is currently located 1. 2 light years distant from Procyon, and the latter would appear as a visual magnitude − 4. 5 star in the night sky of a hypothetical planet orbiting Luyten's Star.

In Richard A. Lupoff's short story " The Discovery of the Ghooric Zone — March 15, 2337 ", Yuggoth is hinted to be the hypothetical Planet X. Lupoff's Yuggoth is a colossal, crimson planet, twice as massive as Jupiter.

A hypothetical issue of this sort might deal with the establishment of a free public junior college in a community where there already was a good private college which served the middle-class youth adequately but was too expensive for working-class youth.

He fundamentally defined his arbitrary orientation for the cell as being that in which the internal current would run parallel to and in the same direction as a hypothetical magnetizing current loop around the local line of latitude which would induce a magnetic dipole field oriented like the Earth's.

The animation below shows two sunsets at a hypothetical site, one the day before the summer solstice and one at the summer solstice, which has a double sunset.

Burns coined the term Sasquatch, which is from the Halkomelem sásq ’ ets (), and used it in his articles to describe a hypothetical single type of creature reflected in these various stories.

Cosmologists therefore invoke a yet unexplored form of energy called dark energy ( dark energy is a hypothetical form of energy that permeates all of space and tends to accelerate the expansion of the universe ) which account for certain cosmological observations mostly related to " accelerating expansion of Universe ".

The curvature of the fretboard is measured by the fretboard radius, which is the radius of a hypothetical circle of which the fretboard's surface constitutes a segment.

In practice, it has been abolished by various Talmudic decisions, making the situations in which a death sentence could be passed effectively impossible and hypothetical.

He fundamentally defined his arbitrary orientation for the cell as being that in which the internal current would run parallel to and in the same direction as a hypothetical magnetizing current loop around the local line of latitude which would induce a magnetic dipole field oriented like the Earth's.

The scattering cross-section, σ < sub > scat </ sub >, is a hypothetical area which describes the likelihood of light ( or other radiation ) being scattered by a particle.

Provoked by predictions of a technological singularity ( the hypothetical moment at which artificial intelligence will surpass human intelligence ), Hofstadter has both organized and participated in several public discussions of the topic.

Again, this is a simplification, based on a hypothetical Earth which revolves at uniform speed around the Sun.

The curvature of the fretboard is measured by the fretboard radius, which is the radius of a hypothetical circle of which the fretboard's surface constitutes a segment.

Critical scholarship generally holds to the two-source hypothesis as most probable, which argues that the author used the Gospel of Mark and the hypothetical Q document in addition to unique material, as sources for the gospel.

The author drew on three primary sources, each representing a distinct community: a hypothetical collection, or several collections, of sayings ( called " Q ", and shared with Luke ); the Gospel of Mark ; and material unique to Matthew ( called " M ", some of which may have originated with Matthew himself ).

The hypothetical right-handed neutrinos are not contained in any of these representations, which can explain their relative heaviness ( see seesaw mechanism ).

This, along with the general public's increasing lack of familiarity of Greek mythology at the time led to the figure of Pan becoming generalised as a ' horned god ', and applying connotations to the character, such as benevolence that were not evident in the original Greek myths which in turn gave rise to the popular acceptance of Murray's hypothetical horned god of the witches.

The hypothetical boy, Émile, is to be raised in the countryside, which, Rousseau believes, is a more natural and healthy environment than the city, under the guardianship of a tutor who will guide him through various learning experiences arranged by the tutor.

Central to the Pure Theory of Law is the notion of a ' basic norm ( Grundnorm )'— a hypothetical norm, presupposed by the jurist, from which in a hierarchy all ' lower ' norms in a legal system, beginning with constitutional law, are understood to derive their authority or ' bindingness '.

He came up with a hypothetical new species of long-necked pinniped, to which he gave the scientific name of Megophias megophias.

For example, in a hypothetical stationary population in which half the population dies before the age of five, but everybody else dies at exactly 70 years old, the life expectancy at age zero will be about 37 years, while about 25 % of the population will be between the ages of 50 and 70.