The Rhythm of the Spheres

Reading the Night Sky

Wandering in Astronomy

The night sky is the oldest pattern of man, and every culture reads it differently. The stars above keep silent time, moving to a rhythm we are just now beginning to understand. Astronomy is where math, science, art, music, and words meet in a wondrous collision. In this section of our site, learn the basics of astronomy: from how a star chart is made, to projections and art that map the night sky, to how an astrolabe works just like it did thousands of years ago. Watch the North Star shift across centuries, explore how one sky has been mapped by many traditions, read what happened on this day in space, and see tonight’s moon for your location.

Map the Stars

The math behind star charts, with a projection explorer and a working astrolabe.

The Moving Sky

How the sky shifts across centuries, with a precession clock you can run.

The Traditions

One sky reads many ways, with a same-sky overlay of the world’s constellations.

This Day in the Stars

The sky’s events, discoveries, and lore tied to today’s date.

The Moon Tonight

Its phase and face, drawn live for where you’re standing.

โœฆ  Astronomy Picture of the Day  โœฆ

The ร‘andรบ in the Milky Way

June 20, 2023
Credit: Fefo Bouvier ; Line Drawing: Alfonso Rosso
See this entry on NASA's APOD โ†’
Have you seen the bird in the Milky Way? Beyond the man in the Moon , the night sky is filled with stories, and cultures throughout history have projected some of their most enduring legends onto the stars and dust above. Generations of people see these celestial icons, hear their associated stories, and pass them down. Pictured here is not only a segment of the central band of our Milky Way galaxy , but, according to folklore of several native peoples of Uruguay , the outline of a great bird called ร‘andรบ . Furthermore, ร‘andรบ's footprint is associated with the Southern Cross asterism. In the foreground, in silhouette , is a statue of Marรญa Micaela Guyunusa , an indigenous woman of the Charrรบa people who lived in the 1800s and endures as a symbol of colonial resistance. The composite image was taken in mid-April in Cabo Polonio , Uruguay, with the Atlantic Ocean in the background.

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โœฆ  EarthSky  ยท  Astronomy.com  ยท  Phys.org  โœฆ
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