The Solar System Flashcards

1
Q

What is the earths tilt value?

A

23.5

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2
Q

What is Keplers First Law?

A

The sun is the focus of the earths ellipse.

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3
Q

What is Keplers second law?

A

A lone joining a planet to the sun sweeps out equal areas during equal time periods.

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4
Q

Whats it called when the earth is closest to the sun?

A

Perihelion.

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5
Q

Whats it called when the earth is furthest away from the sun?

A

Aphelion.

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6
Q

When is the earth moving its fastest?

A

Perihelion.

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7
Q

In the Northern hemisphere 21st of June summer, what latitude will be in continuous daylight?

A

N64.5

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8
Q

On the 21st of December, at midday, where will the sun be directly overhead?

A

S23.5

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9
Q

When is the winter solstice?

A

21st/22nd of December.

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10
Q

Where is the sun in the equinox?

A

Directly overhead the equator.

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11
Q

When is the declination of the sun zero?

A

The equinoxes.

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12
Q

What date is the perihelion?

A

3rd of January

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13
Q

What date is the aphelion?

A

3rd of July.

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14
Q

The rate of change of the declination of daylight is greatest during the time of EQUINOX/SOLSTICE because the rate of change of the declination of daylight is DIRECTLY/INDIRECTLY proportional to the declination of the Sun.

A

Equinox # directly

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