If there is a solar eclipse in your home town today

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If there is a solar eclipse in your home town today, there will be a lunar eclipse in your home town 18 years, 11 1/3 days from now.
Earth will have moved closer to the Sun, so that the Sun will look much larger in our sky.The Moon will have shrunk in size too much for it to fully block the Sun.The Sun will have died.The Moon will have moved too far from Earth for it to fully block the Sun.
10/28/2018Ch 02 HW20/31ANSWER:CorrectKey Concept: Conditions for EclipsesLaunch the videobelow and review the relevant sections of your textbook, then answer the questions that follow. You can watch the video again at any point.Part ASuppose that instead of being inclined to Earth's orbit around the Sun, the Moon’s orbit was in the same plane as Earth’s orbit around the Sun. In thishypothetical situation, approximately how many solar eclipses would occur each year?Hint 1.What phase of the moon is required for a solar eclipse?A solar eclipse can occur only when the phase of the moon is__________.ANSWER:ResetHelp1. A solar eclipse that occurs when the new moon is too far from Earth to completely cover the Sun canbe either a partial solar eclipse or a(n)annular eclipse.2. Anyone looking from the night side of Earth can, in principle, see a(n)total lunar eclipse.3. During some lunar eclipses, the Moon's appearance changes only slightly, because it passes onlythrough the part of Earth's shadow called thepenumbra.4. A(n)total solar eclipsecan occur only when the Moon is new and has an angular size larger thanthe Sun in the sky.5. A partial lunar eclipse begins when the Moon first touches Earth'sumbra.6. A point at which the Moon crosses Earth's orbital plane is called a(n)node.newfullfirst- or third-quarter
10/28/2018Ch 02 HW21/31Hint 2.How often does a new moon occur?About how often does a new moon occur?ANSWER:CorrectIf the Moon orbited Earth in the same plane that Earth orbits the Sun (the ecliptic plane), we would have a solar eclipse at every new moon.Because there are about twelve new moons in a year, we would have twelve solar eclipses. Of course, this isn’t what really happens. Continue toPart B to study the real situation.Part BIn reality, the Moon’s orbit about Earth is tilted (by about 5°) with respect to Earth’s orbit about the Sun. As a result, the actual number of solar eclipses thatoccur each year is approximately _____.ANSWER:CorrectThere are generally two periods of time each year when eclipses are possible — the “eclipse seasons” — and there is a solar eclipse of sometype (partial, total, or annular) during each of these eclipse seasons. (Because the time between eclipse seasons is less than six months, in someyears there is a third eclipse season and hence a third solar eclipse.)Part CWhat conditions must exist for asolareclipse to occur?

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Term
Summer
Professor
Angelichio

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