The glowing sculpture, named Helios, has been created by artist Luke Jerram and will be at Basildon Park from August 22 to 25, having already been there from August 15 to 18.
It is installed in a glade within the park’s Pleasure Grounds, with the 18th-century mansion providing a backdrop.
Visitors can walk around and beneath the sculpture, which is illuminated from within to show the sun’s surface in striking detail.
Helios at Basildon Park (Image: Hugh Morhersole)
Bean bags will be available for those who want to stay and take in the sights and sounds of Helios.
Sebastian Conway, general manager at Basildon Park, said: “It’s an enormous privilege to be able to host Helios at Basildon Park.
“Luke’s artworks are visually stunning and a fantastic conversation starter for some of the really pressing challenges affecting society today.
“Luke’s artworks need to be seen in real life just to see the sheer scale of the installation.
Helios at Basildon Park (Image: Hugh Morhersole)
“We want to welcome everybody to come together and have the chance to immerse themselves in this inspiring sensory experience.
“I can’t wait to see what visitors’ reactions are, and I look forward to welcoming visitors to enjoy Helios at Basildon Park.”
The sculpture blends solar imagery, sunlight, and a surround-sound composition.
This includes NASA recordings of the sun and has been created by sound artists Duncan Speakman and Sarah Anderson.
Helios at Basildon Park (Image: Hugh Morhersole)
At an approximate scale of 1:200 million, each centimetre of the sculpture represents 2,000km of the sun’s surface.
The park will open from midday to 10pm during the exhibition, with final entry at 9pm.
A full programme of activities will accompany the display.
The Reading Astronomical Society will offer sky-gazing sessions through solar scopes on Saturday, August 23.
Other events include mindfulness sessions, yoga, sound baths, Indian classical dance performances, and tai chi.
Helios at Basildon Park (Image: Hugh Morhersole)
Mr Jerram said: “We all know that it is very dangerous to look directly at the sun, as it can damage our eyesight.
“Helios provides a safe opportunity for the public to get up close to, and inspect, its extraordinarily detailed surface including sunspots, spicules, and filaments.
“I hope that the soundscape, lighting, and sheer scale of Helios will combine to make an extraordinary and uplifting experience for the public and I cannot wait to see it showcased in some of the most wonderful locations around England, Wales, and Northern Ireland.”
Helios can be viewed with standard admission to Basildon Park, and entry is free for National Trust members.
It may close if there are strong winds or bad weather.