Editing 1878: Earth Orbital Diagram
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;Astral plane | ;Astral plane | ||
− | *The {{w|Astral plane}} is a plane of existence in various esoteric theories. It features prominently in | + | *The {{w|Astral plane}} is a plane of existence in various esoteric theories. It features prominently in Dungeons and Dragons cosmology, connecting the various other planes of existence. |
*The picture shows the {{w|Orbit_of_the_Moon|lunar orbital plane}}, the plane in which the Moon orbits the Earth, tilted about 5.1 degrees from the ecliptic. | *The picture shows the {{w|Orbit_of_the_Moon|lunar orbital plane}}, the plane in which the Moon orbits the Earth, tilted about 5.1 degrees from the ecliptic. | ||
;Declension | ;Declension | ||
− | *{{w|Declension}} is the inflection of nouns in a language | + | *{{w|Declension}} is the inflection of nouns in a language. In this comic, it might be a portmanteau of declination and (right) ascension. |
*In astronomy, the {{w|Declination|declination}} is one of the two angles that locate a point on the celestial sphere in the equatorial coordinate system. It is measured north or south of the celestial equator, like the geographical latitude on Earth. But in the picture the label is at the angle for the axial tilt of the Earth. | *In astronomy, the {{w|Declination|declination}} is one of the two angles that locate a point on the celestial sphere in the equatorial coordinate system. It is measured north or south of the celestial equator, like the geographical latitude on Earth. But in the picture the label is at the angle for the axial tilt of the Earth. | ||
*And the {{w|Right_ascension|right ascension}} is the angular distance measured eastward along the celestial equator from the vernal equinox to the hour circle of the point in question. | *And the {{w|Right_ascension|right ascension}} is the angular distance measured eastward along the celestial equator from the vernal equinox to the hour circle of the point in question. |