Eclipses Cornell Notes Page 65
Solar Eclipse Sun is blocked by moon when moon passes between Earth and the sun moon’s shadow is cast on earth. Can only occur at New Moon
Total Solar Eclipse moon completely covers the sun Only outermost layer of sun is visible (Corona) Only visible in small bands
Solar Eclipse
sun’s apparent size is bigger than the moon’s, forms a ring. Annular Solar Eclipse sun’s apparent size is bigger than the moon’s, forms a ring.
Partial Solar Eclipse Moon only partially blocks the sun. Visible over much broader path than total eclipse
Paths of Solar Eclipse
Will you see a partial or total eclipse? Depends on the shadows. Penumbra - Faint outer shadow; partial eclipses are seen in these shadows. Umbra- Dark inner shadow; total eclipses are seen from within the umbra.
UMBRA penumbra
Penumbra and umbra
Lunar Eclipse Earth’s shadow falls on the moon Occurs at full moon when Earth is directly between the moon and the sun. Earth’s shadow falls on the moon
Lunar Eclipse Earth’s shadow falls on the moon Occurs at full moon when Earth is directly between the moon and the sun. Earth’s shadow falls on the moon
Lunar Eclipse Effects are quite subtle unless there is a total lunar eclipse.
Why don’t we see solar and lunar eclipses every month?