Requirements for seeing a Total Solar Eclipse?

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Homework Help Overview

The discussion revolves around the conditions necessary for observing a total solar eclipse, specifically focusing on the alignment of the Moon's orbit with the Earth's orbit and the implications for both total and partial solar eclipses.

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants explore the alignment of the Moon's orbit with the Earth's orbit and question the necessity of this alignment for different types of solar eclipses. There is also a focus on the definitions of umbra and penumbra in relation to eclipse visibility.

Discussion Status

The discussion is active, with participants clarifying their understanding of the conditions for a total solar eclipse and questioning the need for orbital alignment. Some guidance has been offered regarding the relationship between the Moon's position and the Earth-Sun line during the new moon phase.

Contextual Notes

Participants are examining the implications of orbital alignment and the definitions of umbra and penumbra, indicating a need for clarity on these concepts in the context of solar eclipses.

Sarah0001
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Homework Statement
Does the orbit of the moon, at the time of the new moon have to lie in the same plane as the Earth's Orbit around the Sun for the Moon's shadow to fall onto the Earth ( in order to have a solar eclipse, whether it be partial, total, or annular)?
Relevant Equations
Solar Eclipse
From my understanding, for an observer to see a total solar eclipse, 1) the Moon's orbit has to be near aligned with the Earth's Orbit, 2)such that the New moon's Umbra falls on Earth, and 3) the observer must be within this cast umbra. But for a partial solar eclipse, since the Penumbra of the new moon has a wider casting, does the Moon's orbit still have to be nearly aligned with Earth's?
 
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Sarah0001 said:
for an observer to see a total solar eclipse, 1) the Moon's orbit has to be near aligned with the Earth's Orbit,
Umm... why?
 
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haruspex said:
Umm... why?
I meant the Moon has to be in line with the Earth and Sun
 
Sarah0001 said:
I meant the Moon has to be in line with the Earth and Sun
That is correct, but it does not require the two orbits to be near aligned. It could still happen even with the orbits orthogonal.
 
haruspex said:
That is correct, but it does not require the two orbits to be near aligned. It could still happen even with the orbits orthogonal.
Thank you, so the moon just has to cross the straight line path between the Earth and Sun during the new moon phase
 
Sarah0001 said:
Thank you, so the moon just has to cross the straight line path between the Earth and Sun during the new moon phase
Right.
 

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