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Subsolar point

Astronomy SubraSuhail

subsolar point: The point on a planet that is directly below the sun.

 


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405. Subsolar Point
The point on a planet which is directly below the sun.
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406. Summer Solstice
The point on the ecliptic where the Sun reaches it most northern track.

subsolar point The geographical position of the sun; that point on the earth at which the sun is in the zenith at a specified time.

The asterisk on each map shows the location of the subsolar point, where the Sun is directly overhead. This point moves across the surface as Phoebe rotates.

has a local atmosphere of which is present only over the subsolar point and volcanos. Each frost patch determines its own radiative equilibrium. , , and undergo exchange between the atmosphere and surface. This exchange determines the composition.

One result of this is a temperature variation of about 30 C at the subsolar point between aphelion and perihelion. This has a major influence on Mars' climate.

The Caloris Basin is near Mercury's subsolar point, the point on Mercury that is closest to the Sun when Mercury is at (the point in its orbit when it is nearest to the ), so the Caloris Basin gets extremely hot; this is why it is called Caloris, ...

1% as strong as that of the Earth. Surface temperatures on Mercury range from about 90 to 700 K (âˆ'180 to 430 °C), with the subsolar point being the hottest and the bottoms of craters near the poles being the coldest.

It is an exceptionally dense planet due to the large relative size of its core. Surface temperatures range from about 90 to 700 K (-183°C to 427°C), with the subsolar point being the hottest and the bottoms of craters near the poles being the ...

Subsolar point temperature (from infrared observations) 408 ± 8 K; from Mariner 10, 700 K. Optical spectrum is similar to lunar maria and uplands.

The geographical position of the sun is also called the subsolar point, of the moon the sublunar point, and of a star the substellar or subastral point.
2.

See also: Solar, Light, Planet, Orbit, Solar System

Astronomy SubraSuhail

 
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