The Sky at Night

Catherine Whitwell: Astronomy & Creative Writing

Catherine Whitwell Learning Leaflet

Why write science in a creative style? 

Catherine Whitwell wrote an introduction to the night sky as a conversational dialogue between a mother and daughter. It contains 23 engraved plates drawn by Whitwell herself, including four hand colored folding plates. One of the plates depicts the constellations of Corvus the Crow, Crater the Cup and Hydra the Water Snake. Another plate conveys a dramatic impression of the Full Moon at night, shown against a striking black background. 


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The Celestial Globe: An Introduction

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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.


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Elisabeth Hevelius: Observational Astronomer

Elisabeth Hevelius Learning Leaflet

How does the Sextant symbolize the person who worked on the famed Hevelius star catalog and star atlas throughout its production, from observation to publication? 

Elisabeth Hevelius, wife of Johann Hevelius, was an astronomer in her own right. They worked together in the observatory of their Gdansk home to measure angular widths and distances with a great sextant, which required two observers at a time. The Sextant was among the new constellations they proposed in Uranographia (1690), the most detailed and influential celestial atlas of the 17th century. The Uranographia contains 54 beautiful double page engraved plates of 73 constellations, and 2 oversized folding plates of planispheres.


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Diurnal Motion: An Introduction

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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.


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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.


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The Planisphere: An Introduction

A. Klippel, Starry Heavens

The planisphere is a handy map of the night sky that works every night every season of the year. Learn more about how to use a planisphere in this learning leaflet.


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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:  


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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.


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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:  


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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:  


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