To determine which positions of the moon are in a crescent phase, we first need to understand how the positions correspond to the visibility of the moon.
In a crescent phase, the moon is either waxing (growing from new to full) or waning (shrinking from full to new), which means that we can see a thin sliver of the illuminated portion.
Positions typically considered as crescent phases include:
- Waxing Crescent: When the moon is positioned between the Earth and the sun, but just starting to go out of the new moon phase.
- Waning Crescent: After the last quarter, when the moon is moving back towards the new moon phase.
Without seeing the actual diagram, we can make educated guesses based on typical lunar phases:
- If positions 2 and 8 show the moon in a thin sliver of light (either slightly illuminated from the right or slightly from the left), they would be considered crescent.
- If positions 4 and 6 show more than a crescent (like first quarter or gibbous), they would not qualify.
From your answer choices:
- 2 and 4 likely present more than a crescent view.
- 2 and 8 suggest one crescent phase.
- 4 and 6 would indicate more than crescent phases.
- 6 and 8 again would not likely both be in crescent phases.
Given these considerations, the best guess for the positions in crescent phase is 2 and 8, assuming they depict the moon as a thin crescent from Earth’s viewpoint.