Trace how astronomy and astrology shaped the past at Adler Planetarium's new exhibit

The Adler Planetarium will open its temporary exhibition, "Stars Aligned: Tracing the History of Astronomy and Astrology," on Friday,  Oct. 31. The exhibit reveals how these two fields, now seen as distinct, were once a unified practice between roughly 1500 and 1800. By presenting rare artifacts and astrological tools, the exhibition allows visitors to understand how early-modern people used celestial observations both to advance scientific knowledge and to interpret fate and time.

According to a press release, Dr. Katie Boyce-Jacino, curator and director of collections at the Adler, said, “Astrology is a crucial part of that history, and it’s so exciting to be able to unpack that story with some of our most unusual and special artifacts.” She emphasized the exhibit uncovers “a very human story, of people trying to make sense of the world around them, just like we do today.”

Artifacts highlight the dual role of celestial study

The exhibition showcases a variety of historical instruments and texts. For example, a 1769 Northern Indian Panchānga (astrological calendar) guides the timing of events based on star movements and mythology. A 1494 book, Astrolabium Planum, illustrates zodiacal degrees corresponding to personality traits derived from planetary positions. Visitors can also see a 1657 medical astrology volume, De Diebus Criticis, which advised physicians on using astrology to treat diseases.

Read more on Chicago Star:

• Three Oxford Hotels named among Chicago’s best in 2025 Condé Nast awards
• Haunted House Party splashes at Shedd Aquarium for Halloween
• Experience live music under the Chicago Cultural Center’s Tiffany dome
• National Museum of Mexican Art hosts Dia de los Muertos festival in Chicago

Benjamin Banneker’s 1795 almanac is featured prominently, bridging astrology with civic life, farming, and natural observation, according to the press release. These artifacts demonstrate the widespread influence of celestial study, showing how astronomy laid the mathematical groundwork for understanding the cosmos while astrology provided cultural context and personal meaning.

By retracing the intertwined roots of astronomy and astrology, the "Stars Aligned" exhibit illuminates how early-modern societies navigated their place in the universe. The show is accessible during all public hours and included with Adler admission, with tickets available only online in advance.