Starry, starry night: Dome Room constellations will shine for the public

Thomas Jefferson wanted to bring the stars indoors.

Jefferson, in designing the University of Virginia’s iconic Rotunda, planned to paint constellations on the ceiling of the Dome Room. He never completed this part of his vision, but in 2019, three graduate students set up projectors to display the constellations on the Dome Room’s ceiling. 

On Nov. 28, from 6 to 8:30 p.m., the Dome Room will again open to the public to see the constellations. The presentation, sponsored by the Jefferson Trust and UVA’s Office of Student Affairs, will include the Youth Orchestras of Central Virginia and historical actor-interpreter Bill Barker as Thomas Jefferson.

“This event provides the community with a special opportunity to visit the Rotunda,” said Andrea Seese, associate director of promotions and events for the Jefferson Trust. “Taking place over Thanksgiving weekend, it also offers families and friends visiting the Charlottesville area a chance to share a unique experience.”

“The Rotunda Planetarium Public Viewing Night, now an annual community event, has become the highlight of my time here at the Rotunda. It is fun, free and family-friendly,” Sheri Winston, director of the Rotunda, said. “It is an inspiring evening that brings science, history and community together under the night sky Jefferson envisioned for the Rotunda’s dome. It is a wonderful way to share the beauty of this UNESCO World Heritage site with the public.”

close up of the oculus of the Rotunda from the inside with constellation maps projected around it.

Visitors to the Dome Room on Nov. 28 will view an artistic representation of Jefferson’s vision of constellations on the ceiling. (Photo by Erin Edgerton, University Communications)

Astronomy professor Edward Murphy said Jefferson wanted the Dome Room to work as an astronomy lab, including a device to measure the stars and a hoist to raise the astronomy instructor into the air to get closer to the constellations.

“The idea was that Jefferson would pick a day and a time and get a star atlas and paint the stars on the ceiling exactly as they were at that date and time,” Murphy said. “He would paint it sky blue and then put the stars up there, in their correct positions for that day and time and with their correct magnitude, having the correct brightness of the stars up there.”

While Jefferson did not execute his plan, Madeline Zehnder, Neal Curtis and Samuel Lemley, three graduate students in the English Department, worked with a Jefferson Trust grant to devise a system of digital projectors that superimpose the constellations onto the Dome Room ceiling – though it is not quite what Jefferson planned. It is not entirely astronomically accurate.

“We have not yet reached Jefferson’s vision for what the Rotunda planetarium should be,” Murphy said. “They used constellation figures out of a star catalog that existed around Jefferson’s time, and they have projected them on the ceiling. So it is rendered as a far more artistic view than it is an accurate view that would be useful in teaching.”

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Still, the evening is an opportunity for people to visit the Rotunda and to see this artistic vision of the cosmos.

“The Dome Room is typically booked with University events,” Seese said. “This open house gives the larger UVA and surrounding communities the opportunity to visit the Rotunda, visit Grounds and ‘see the stars.’”

Jefferson was entranced with the stars and celestial activity and may have pursued that as a career had he not gotten into politics, Murphy said. Jefferson also designed an unbuilt observatory for what is now Observatory Hill, where the McCormick Observatory currently resides. 

“Jefferson could not have imagined the McCormick Observatory that ended up being built 60 years later,” Murphy said. “The telescope was far, far larger than anything that Jefferson had ever seen in his life.”

Charles Bonnycastle, the University’s first professor of natural philosophy, built an observatory atop of Observatory Hill in 1827, the year after Jefferson died. The Bonnycastle Observatory was dismantled in 1859, with the bricks and materials used to build a new gatehouse west of the University.

“We don’t have any pictures of that observatory,” Murphy said. “We don’t have any surviving drawings of it, so we don’t know whether Bonnycastle followed Jefferson’s design for it, or whether he came up with his own design or whether he used Jefferson’s design, but modified it.”

Media Contacts

Matt Kelly

University News Associate Office of University Communications