Open Educational Resources

Johannes Kepler: Harmony of the Universe

Image of Kepler's Harmonic Law

In the work, Harmony of the Universe, Kepler integrated theoretical astronomy and music, ,showing that the motions of the planets employ the same numerical ratios as the most harmonious scales. Kepler's "harmonic law" still describes how planets and stars and satellites and galaxies revolve around one another in space.

Learn more about Kepler's "harmonic law" and its modern realizations in this learning leaflet.

Related OERs:


DOWNLOAD

Zodiacal Motion: An Introduction

Johann Bayer, Uranometria

Against the background of the daily diurnal motion, the outer planets have an additional slow motion called their Zodiacal (or "direct") motion. Stars are fixed in relative position, but planets move slowly from west to east. Learn more about zodiacal motion in this learning leaflet.


DOWLNOAD

Diurnal Motion: An Introduction

Diurnal-Motion-LL.jpg

Each day and night, the fixed stars appear to rotate around the earth like a giant celestial sphere. Just like the Sun, they rise in the east and set in the west. The daily motion of the entire sky, rising from the east, setting in the west, rotating around the north pole, is called the diurnal motion. Learn more about diurnal motion in this learning leaflet.


DOWNLOAD

The Celestial Globe: An Introduction

Celestial-Globe-LL.jpg

The night sky looks like an upside-down bowl set on the horizon, but as it turns around during the night it is easy to think of it as a giant sphere. Think of the stars as bright points of light lying on the inside surface of a giant celestial sphere. This sphere rotates around us once a day. A model of the sky as a celestial globe explains the appearances of the sky with simplicity and elegance. Learn more about celestial globes with this learning leaflet.


DOWLNOAD

Constellation tubes | Six constellations

Six constellations

Identify six common constellations by their star patterns.

Urania's Mirror was a set of 32 constellation cards designed to aid in identifying the constellations by distinguishing between star patterns and constellation figures. This set includes six constellations, selected so that at least one of them is visible (in the northern hemisphere) at any time of the year. Holes punched in the positions of bright stars allow one to hold any card up to a light and compare the star pattern with the constellation figure.

OERs in this set:  


DOWNLOAD: Constellation tubes | Six Constellations

Hoot the Owl

Hoot the Owl

A children’s book, The Story of How the Constellation ‘Hoot the Owl’ Began, was written and Illustrated by Anna Todd (2017), a 2nd grade student at Rose Witcher Elementary School, El Reno Public Schools, located in El Reno, Oklahoma. The book developed in collaboration with Stacey Stephenson and was inspired by the Galileo's World exhibition (backstory).


DOWNLOAD

Orion: Baba, Nobutake (1706)

Orion China Learning Leaflet

This work, written by a Kyoto physician, represents Asian astronomy in the generation following Adam Schall. Baba countered superstitious interpretations of solar eclipses, and used magnetic theory rather than yin and yang to explain the tides. Baba adopted the Tychonic model of cosmology. His book exemplifies the circulation of knowledge in East Asia and the interplay between Asian and European ideas.


DOWNLOAD

Coma Berenices Learning Leaflet

Coma Berenices Learning Leaflet

Coma Berenices is the only one of the modern 88 official constellations named after a historical figure. It represents the hair of Berenice, Queen of Egypt (267 221 BCE), who reigned with Ptolemy III Euergetes. Learn more about this in this learning leaflet.


DOWNLOAD

Bode's Star Atlas: Uranographia, 1801

Bode's Star Atlas LL

What are your favorite constellations? 

This beautiful star atlas fused artistic beauty and scientific precision, the last of the four major star atlases in which artful depictions of constellation figures appear alongside the most up to date scientific information. Bode was director of the Observatory of the Berlin Academy of Sciences.

OERs in this set:  Bode Learning Leaflet | Constellation ActivitiesBode Coloring Pages | Bode Original plates


DOWNLOAD

"Constellation Coloring Book" adapted from Johann Bode, "Uranographia"

Bode Coloring Book

Johann Bode, director of the Observatory of the Berlin Academy of Sciences, produced the last of the four major celestial atlases in which artful depictions of constellation figures appear alongside the most up-to-date scientific data. 20 large copperplate engravings plot more than 17,000 stars, far more than any previous atlas. Bode included new stars for the southern hemisphere, along with constellations recently invented by Hevelius and Lacaille. Bode depicted more than 100 constellations, compared with 88 officially recognized today. Some which appeared in this atlas for the first time, but are not officially recognized today, include the Cat, the Printing Press, the Montgolfier Balloon, and the Electric Generator.

This coloring book, produced by the OU Academy of the Lynx, was made from images in Bode's book.  

OERs in this set:  Bode Learning Leaflet | Constellation ActivitiesBode Coloring Pages | Bode Original plates


DOWNLOAD

Urania's Mirror: Constellation card set (half-page)

Urania's Mirror Card Set

What are your favorite constellations?

Urania's Mirror was a set of constellation cards designed to aid in the teaching and learning of constellations. This set includes 32 cards, each focused upon one or a few constellations. Holes punched in the positions of bright stars allow one to hold any card up to a light and compare the star pattern with the constellation figure. This is the half-page set.

OERs in this set:  


DOWNLOAD

Urania's Mirror: card set (full page)

Urania's Mirror Card Set

What are your favorite constellations?

Urania's Mirror was a set of constellation cards designed to aid in the teaching and learning of constellations. This set includes 32 cards, each focused upon one or a few constellations. Holes punched in the positions of bright stars allow one to hold any card up to a light and compare the star pattern with the constellation figure. This is the full-page set.

OERs in this set:  


DOWNLOAD

Urania's Mirror: Constellation Cards

Urania's Mirror Learning Leaflet

What are your favorite constellations?

Urania's Mirror was a set of constellation cards designed to aid in the teaching and learning of constellations. This set includes 32 cards, each focused upon one or a few constellations. Holes punched in the positions of bright stars allow one to hold any card up to a light and compare the star pattern with the constellation figure.

OERs in this set:  


DOWNLOAD

Orion the Hunter

Orion the Hunter Learning Leaflet

Can you recognize Orion the Hunter?

Three bright stars in a row make up Orion's belt, within a rectangle of four bright stars representing his shoulders and feet. Since Orion's belt lies nearly upon the celestial equator, Orion is visible from every inhabited part of the globe. This OER introduces the astronomy and skylore of the constellation Orion the Hunter.


DOWNLOAD

Search OERs