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Solar System models, especially mechanical models are called orreries.

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What is The apparent change in position of an object with respect with respect to a distant background is called?

Parallax id the apparent shift in position of an object with respect to the background due to a shift in view point.


What is the apparent movement of and object across a background when observed from two different places?

Parallax is the apparent shift in position of an object when viewed from two different locations. It is used to measure distances to nearby stars and celestial objects by observing their change in position against more distant stars.


What is the relationship between the apparent magnitude and the brightness of a celestial object?

The apparent magnitude of a celestial object is a measure of its brightness as seen from Earth. The lower the apparent magnitude, the brighter the object appears in the sky. This means that a celestial object with a lower apparent magnitude is brighter than one with a higher apparent magnitude.


What is the sun's apparent path through the background of stars called?

The sun's apparent path through the background of stars is called the ecliptic. It is the apparent annual path that the sun follows as seen from Earth.


Why does the sun have the greatest apparent magnitude of any celestial object of the sky?

The sun has the greatest apparent magnitude in the sky because it is the closest star to Earth, making it appear very bright. Its proximity combined with its luminosity contribute to its high apparent magnitude compared to other celestial objects.


What is an apparent magnitude?

Apparent magnitude is a measure of how bright a celestial object appears from Earth. It is a logarithmic scale where lower numbers indicate brighter objects. Apparent magnitude takes into account the intrinsic brightness of the object as well as its distance from Earth.


What is the apparent movement of an object across a background when observed from two different places?

Parallax is the apparent movement of an object across a background when observed from two different places.


What is the line that the sun traces across the celestial sphere?

The "ecliptic". In truth, the Sun doesn't move; the apparent motion of the Sun across the sky is caused by the Earth spinning, and the apparent motion of the Sun across the "celestial sphere" is caused by the Earth orbiting the Sun. But the plane of the Earth's orbit around the Sun is what causes the apparent motion of the Sun across the celestial sphere, so the "ecliptic" is actually the plane of the Earth's orbit.


How solstices and equinoxes different?

Equinoxes are the two points among the stars where the sun's apparent annual path crosses the celestial equator. Solstices are the two points among the stars where the sun's apparent annual path reaches its extremes, north and south of the celestial equator.


The apparent movement of an object across a background when observed from two different places is called an?

The apparent movement of an object across a background when observed from two different places is called parallax.


What are the two day of the year on which the sun reaches its greatest distance north or south of the equator?

June 21:Sun at solstice, farthest apparent distance north of terrestrial and celestial equators.December 21:Sun at solstice, farthest apparent distance south of terrestrial and celestial equators.


What is the apparent movement of am object across a background when observed from two different places?

Parallax is the apparent movement of an object across a background when observed from two different places. This phenomenon is due to the shift in the object's position relative to the background as the observer's perspective changes.