Pulkovo Observatory

Feel the wind first. Up here on the Pulkovo Heights, the air moves freely across open ground, and the city lies flat and pale to the north. A long, straight avenue of trees leads you up the slope. At the top, a white neoclassical building waits, crowned by round domes. It is quiet... far quieter than you might expect, so close to one of Russia's largest cities.

This is Pulkovo Observatory, the main astronomical observatory of the Russian Academy of Sciences. It opened in 1839, during the reign of Emperor Nicholas the First. The site was chosen with care. These heights rise above the low, marshy plain around Saint Petersburg. Higher ground meant cleaner, steadier air, and less of the city's smoke and haze between the telescopes and the stars.

The man behind the project was the astronomer Friedrich Georg Wilhelm Struve, known in Russia as Vasily Yakovlevich Struve. He came from a German family and had already made his name at the university observatory in Dorpat, the city we now call Tartu, in Estonia. Struve became Pulkovo's first director. He shaped the observatory around one goal — measuring the positions of stars with extreme precision.

The building itself was designed by the architect Alexander Bryullov, brother of the famous painter Karl Bryullov. Look at the long, symmetrical facade. The central block carries the main dome, and lower wings stretch out on either side. The style is calm and classical, with columns and clean lines. It looks less like a laboratory and more like a country palace for science. That was part of the message: astronomy as a serious imperial project.

Here is the first surprise. For much of the nineteenth century, this hill was a starting line for the map of Russia. A north-south line runs through the centre of the main building, known as the Pulkovo meridian. Russian maps and charts measured longitude from this line, much as the world now measures from Greenwich in London. Every distance east or west across a vast empire was calculated from the spot where you are standing.

The observatory also held some of the most powerful instruments of its age. Soon after it opened, Pulkovo installed a great refracting telescope, a telescope that gathers light with lenses rather than mirrors. For a time it was among the largest of its kind in the world. Later in the century, an even larger refractor arrived, with lenses made in the United States. Astronomers travelled from across Europe and beyond to train and work here. The hill earned a reputation as one of the great capitals of astronomy.

The Struve name stayed here for generations. Vasily Struve's son, Otto Wilhelm Struve, followed him as director. Later descendants also became astronomers, and one great-grandson built a distinguished career in the United States. It is a rare thing — a single family carrying one science across four generations and two continents. Their work on double stars, pairs of stars that orbit each other, remains part of the scientific record today.

The twentieth century brought darker times. In the 1930s, during the Stalinist purges, several Pulkovo astronomers were arrested. Some were sent to camps, and some were executed. Historians now treat this episode as one of the heaviest losses suffered by Soviet science. When you walk these paths, it is worth remembering that the quiet here was not always peaceful.

Then came the Second World War. During the siege of Leningrad, as Saint Petersburg was then called, the front line ran across these very heights. The hill was a natural military position, with views over the whole city. Fighting and shelling destroyed the observatory almost completely. Staff managed to evacuate part of the library and some instruments before the worst damage. Much else was lost, including the great refractor's tube.

Here is the second surprise. The building in front of you is largely a postwar reconstruction. After the war, the Soviet government decided to rebuild Pulkovo on its old site, and to keep its classical appearance. The restored observatory reopened in the 1950s. So the facade carries two stories at once — Bryullov's original design, and the careful work of people who rebuilt it from ruins. Look for memorials on the grounds that honour those who fought and died on these heights.

Today Pulkovo is still a working research institution. Astronomers here study the Sun, the motion of stars, small bodies in the solar system, and the measurement of time and position. The grounds also hold a scattering of smaller pavilions and towers. Each one housed a different instrument for a different task. Together they make the hill feel like a small village of telescopes, set among lawns and old trees.

Visits usually take the form of guided tours, which you arrange in advance. A guide can take you inside the main building and show you historic instruments and the line of the meridian. If you come in the evening on a clear night, some tours include a chance to look through a telescope. Remember that the observatory sits well south of the centre, close to the airport. Allow time for the journey, and dress for the wind on the open heights.

Before you leave, turn and face north, back toward the city. On a clear day, you can trace the long road running straight toward Saint Petersburg. Notice how low and flat the land is, and how this small rise gives such a wide view. That same view made the hill valuable to astronomers, and to armies. Now, with the domes behind you and the trees moving in the wind, it is simply a place to stand still... and look up.