equatorial plane


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equatorial plane

See equator.

equatorial plane

[‚e·kwə′tȯr·ē·əl ′plān]
(astronomy)
The plane passing through the equator of the earth, or of another celestial body, perpendicular to its axis of rotation and equidistant from its poles.
(cell and molecular biology)
The plane in a cell undergoing mitosis that is midway between the centrosomes and perpendicular to the spindle fibers.
(mechanics)
A plane perpendicular to the axis of rotation of a rotating body and equidistant from the intersections of this axis with the body's surface, provided that the body is symmetric about the axis of rotation and is symmetric under reflection through this plane.
(optics)
References in periodicals archive ?
Lying on a plane perpendicular to the equatorial plane, the analyzer can be considered (from a geometrical point of view) as a mirror for the x-rays, thus actual calculations of the reflection follow easily from Eq.
Note that the X, Y, Z (capitals) are symmetry-axes of the Earth, where the Y-axis coincides with the polar axis and X, Z are (random) axes in the equatorial plane.
The (hk0) rings orient preferentially in the equatorial plane (the vertical direction in the photographs) and are partially obscured on the top side by the beam stop.
Previously, Cassini was orbiting in the equatorial plane of the planet, and the imaging team's images of the polar vortex between late March and mid-May were taken from a location over Titan's equator.
Substituting the explicit expressions for the components of the metric tensor in the equatorial plane of the spherical body yields
Adrastea and Metis orbit Jupiter almost exactly in the equatorial plane.
They discovered that if Uranus had been hit when still surrounded by a protoplanetary disk-the material from which the moons would form-then the disk would have reformed into a fat doughnut shape around the new, highly-tilted equatorial plane.
The first and second plies are made up of substantially parallel metallic reinforcing cords embedded in a rubber composition that are inclined with respect to the equatorial plane of the tire, and the cords of the first ply are inclined with respect to the cords of the second ply.
For orbits confined to the equatorial plane of a homogenous oblate spheroidal mass [1, 8]; [eta] [equivalent to] 0 (or d[eta] [equivalent to] 0) and substituting the explicit expressions for the components of metric tensor in the equatorial plane yields (3.
GOES satellites orbit the equatorial plane of the Earth at a speed matching the Earth's rotation.
A year ago, from its unique vantage point high above the south pole, Ulysses scanned the sun's equatorial plane as far as Earth's orbit and recorded at radio wavelengths the pinwheel structure predicted by theory.