Question 1 of 2921866636ee928f7522a1c5191cc

The autumnal equinox is the point where the Sun is at __________.

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Question 1 of 29218
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The autumnal equinox is the point where the Sun is at __________.

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🔍 Key Concepts

• Declination of the Sun and how it changes through the year • The meaning of equinox compared with solstice • Direction the Sun’s declination is moving just after the September (autumnal) equinox in the Northern Hemisphere

💭 Think About

• First, picture what the Sun’s declination is at any equinox: is it north, south, or zero? • At the March (vernal) equinox, in which direction is the Sun’s declination changing right after that date—toward the north or toward the south? Then compare what happens six months later. • Which choices describe solstice conditions (maximum north or south), and which describe equinox conditions (crossing the celestial equator)?

✅ Before You Answer

• Verify what equinox literally means (hint: equal day and night, Sun on the celestial equator). • Identify that at an equinox the Sun’s declination is 0°, then decide whether after the autumnal equinox it is moving toward positive (north) or negative (south) declinations. • Eliminate answers that describe maximum declination (that’s solstice, not equinox).