circle of equal altitude

[′sər·kəl əv ′ē·kwəl ′al·tə‚tüd] (geodesy) A circle on the surface of the earth, on every point of which the altitude of a given celestial body is the same at a given instant; the pole of this circle is the geographical position of the body, and the great-circle distance from this pole to the circle is the zenith distance of the body.

circle of equal altitude

A circle on the surface of the earth, having as its center the substellar points of a given celestial body, from any point on or above the circumference of which the angular altitude of the body is the same. Also called a circle of position.

单词	circle of equal altitude
释义	circle of equal altitude circle of equal altitude [′sər·kəl əv ′ē·kwəl ′al·tə‚tüd] (geodesy) A circle on the surface of the earth, on every point of which the altitude of a given celestial body is the same at a given instant; the pole of this circle is the geographical position of the body, and the great-circle distance from this pole to the circle is the zenith distance of the body. circle of equal altitude A circle on the surface of the earth, having as its center the substellar points of a given celestial body, from any point on or above the circumference of which the angular altitude of the body is the same. Also called a circle of position.
随便看	genus ibis genus ichthyosaurus genus ichthyostega genus ictalurus genus icteria genus icterus genus ictiobus genus ictonyx genus idesia genus iguana genus iguanodon genus ilex genus iliamna genus illecebrum genus illicium genus impatiens genus inachis genus indigofera genus indri genus inga genus inula genus ipomoea genus irena genus iresine genus iridoprocne