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An Analemma of the Sun
This week the equinox found the Sun near the middle.
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Equinox: The Sun from Solstice to Solstice
Today is an equinox, a date when day and night are equal.
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A Harvest Moon
Famed in festival, story, and song the best known full moon is the Harvest Moon.
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Sunset Analemma
The Sun reaches the northernmost declination in its yearly journey through planet Earth's sky.
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Milky Way over Pyramid of the Feathered Serpent
To see the feathered serpent descend the Mayan pyramid requires exquisite timing
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Astronomy Picture of the Day: Equinox: Analemma over the Callanish Stones
Does the Sun return to the same spot on the sky every day at the same time? No.
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Astronomy Picture of the Day: Star Trails and the Bracewell Radio Sundial
Sundials use the location of a shadow to measure the Earth's rotation and indicate the time of day.
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Astronomy Picture of the Day: Chicagohenge: Equinox in an Aligned City
Sometimes, in a way, Chicago is like a modern Stonehenge
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