Skip to content
notes.secretsauce.net·

✨Moon's Paradox: Why It Points Up After Sunset

Why does the moon point up after sunset?

TL;DR

The lunar terminator paradox makes the moon appear to point up after sunset, despite the sun being below the horizon. This optical illusion is most noticeable with a full moon. The moon's illuminated side remains constant as it rises.

The lunar terminator paradox is an optical illusion where the moon appears to point up after sunset, despite the sun being below the horizon. This happens because the same part of the moon is illuminated regardless of its position in the sky. As the moon rises from the horizon to the zenith, more of its bottom and dark areas become visible, making it seem like it's pointing up. This illusion is most noticeable with a full moon, where the moon appears half-lit when the sun is at an azimuth of 90 degrees. The paradox is less noticeable with a half-moon. This phenomenon challenges our understanding of celestial mechanics and highlights the limitations of current AI tools in comprehending complex optical illusions.

Key Points

1

The lunar terminator paradox is an optical illusion where the moon appears to point up after sunset, despite the sun being below the horizon.

2

The moon is fully illuminated when it is on the horizon and full, and the same part of the moon is lit up when it is higher in the sky and full.

3

The moon appears bright at the top and has a dark slice missing at the bottom when it is not at the horizon, making it seem like it's pointing up.

4

Some AI tools are unable to comprehend the paradox and may make infinite circular arguments, highlighting the limitations of current AI in understanding complex optical illusions.

5

The moon's illuminated side remains constant as it rises, making it seem like it's pointing up after sunset, despite the sun being below the horizon.

Why It Matters

The lunar terminator paradox challenges our understanding of celestial mechanics and highlights the limitations of current AI tools in comprehending complex optical illusions. This phenomenon is most noticeable with a full moon, where the moon appears half-lit when the sun is at an azimuth of 90 degrees. The paradox is less noticeable with a half-moon, making it a fascinating topic for astronomy enthusiasts and developers working on AI and machine learning projects.

moonoptical-illusionlunar-terminatorcelestial-mechanicsai-limitations

Comments

Subscribe to join the conversation...

Be the first to comment

Enjoyed this article?

Get it daily. 7am. Free. Reads in 5 minutes.

Join 3,567 builders reading daily.

Also get