(astronomy) the magnitude that a star would have if it were viewed from a distance of 10 parsecs (32.62 light years) from the earth
Used in the same subject area: Physics, Astrophysics.
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Brightness level
the quality of being luminous; emitting or reflecting light; "its luminosity is measured relative to that of our sun"
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(astronomy) the point in an orbit farthest from the body being orbited
Used in the same subject area: Physics, Astrophysics.(astronomy) the equinoctial point that lies in the constellation of Virgo
Used in the same subject area: Physics, Astrophysics.(astronomy) the common center of mass around which two or more bodies revolve
Used in the same subject area: Physics, Astrophysics.(astronomy) the angular distance of a celestial body north or to the south of the celestial equator; expressed in degrees; used with r…
Used in the same subject area: Physics, Astrophysics.(astronomy) the equatorial coordinate specifying the angle, measured eastward along the celestial equator, from the vernal equinox to…
Used in the same subject area: Physics, Astrophysics.(astronomy) Copernicus' astronomical model in which the Earth rotates around the sun
Used in the same subject area: Physics, Astrophysics.(astronomy) an arbitrarily fixed date that is the point in time relative to which information (as coordinates of a celestial body) is…
Used in the same subject area: Physics, Astrophysics.(astronomy) the angular distance of a celestial body north or to the south of the celestial equator; expressed in degrees; used with r…
Used in the same subject area: Physics, Astrophysics.(astronomy) a measure of time defined by Earth's orbital motion; terrestrial time is mean solar time corrected for the irregularities…
Used in the same subject area: Physics, Astrophysics.(astronomy) either of the two celestial points at which the celestial equator intersects the ecliptic
Used in the same subject area: Physics, Astrophysics.(astronomy) a collection of star systems; any of the billions of systems each having many stars and nebulae and dust; "‘extragalactic…
Used in the same subject area: Physics, Astrophysics.(astronomy) the angular distance of a celestial point measured westward along the celestial equator from the zenith crossing; the righ…
Used in the same subject area: Physics, Astrophysics.(astronomy) the generalization that the speed of recession of distant galaxies (the red shift) is proportional to their distance from…
Used in the same subject area: Physics, Astrophysics.(astronomy) the generalization that the speed of recession of distant galaxies (the red shift) is proportional to their distance from…
Used in the same subject area: Physics, Astrophysics.(astronomy) the angle between the plane of the orbit and the plane of the ecliptic stated in degrees
Used in the same subject area: Physics, Astrophysics.(astronomy) the angle between the plane of the orbit and the plane of the ecliptic stated in degrees
Used in the same subject area: Physics, Astrophysics.(astronomy) the alignment of the Earth and a planet on the same side of the sun
Used in the same subject area: Physics, Astrophysics.
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Words connected by meaning
Their definitions overlap or refer to similar ideas. Use these to widen your search, then compare the exact meanings.
The elevation of a point, or star, or other celestial object, above the horizon, measured by the arc of a vertical circle intercepted…
Its definition shares important concepts with this word: luminous, emitting, reflecting, light, luminosity.Destitute of light, or incapable of reflecting it; of the color of soot or coal; of the darkest or a very dark color, the opposite of…
Its definition shares important concepts with this word: luminous, emitting, reflecting, light, luminosity.Radiating or reflecting light; shedding or having much light; shining; luminous; not dark.
Its definition shares important concepts with this word: luminous, emitting, reflecting, light, luminosity.the quality of being luminous; emitting or reflecting light; "its luminosity is measured relative to that of our sun"
Its definition shares important concepts with this word: luminous, emitting, reflecting, light, luminosity.Relative position or aspect of the planets; the face of the horoscope, according to the relative positions of the planets at any time.
Its definition shares important concepts with this word: luminous, emitting, reflecting, light, luminosity.The nominal of the second tone in the model major scale (that in C), or of the fourth tone in the relative minor scale of C (that in A…
Its definition shares important concepts with this word: luminous, emitting, reflecting, light, luminosity.Destitute, or partially destitute, of light; not receiving, reflecting, or radiating light; wholly or partially black, or of some deep…
Its definition shares important concepts with this word: luminous, emitting, reflecting, light, luminosity.Extending far below the surface; of great perpendicular dimension (measured from the surface downward, and distinguished from high, wh…
Its definition shares important concepts with this word: luminous, emitting, reflecting, light, luminosity.Relative space, between troops in ranks, measured from front to rear; -- contrasted with interval, which is measured from right to lef…
Its definition shares important concepts with this word: luminous, emitting, reflecting, light, luminosity.An interception or obscuration of the light of the sun, moon, or other luminous body, by the intervention of some other body, either b…
Its definition shares important concepts with this word: luminous, emitting, reflecting, light, luminosity.Any luminous winged insect, esp. luminous beetles of the family Lampyridae.
Its definition shares important concepts with this word: luminous, emitting, reflecting, light, luminosity.An instrument devised originally for measuring the diameter of the sun; now employed for delicate measurements of the distance and rel…
Its definition shares important concepts with this word: luminous, emitting, reflecting, light, luminosity.
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