Stargazing in Trondheim, Trøndelag, Norway

Dark-sky rating for Trondheim

Trondheim, Trøndelag, Norway is a small city (population about 216,518). A place this size typically has a rural to suburban transition: the Milky Way core can be glimpsed on clear, moonless nights. That is an estimate of Bortle class 4–5 from population, not a measurement: the real value depends on the exact spot you observe from.

For a measured reading at any point, open the live Dark Sky map.

Nearest dark-sky places and observatories

No certified dark-sky place or observatory in our registry lies within 150 km of Trondheim. Our list only includes genuine, publicly documented sites, so none is shown rather than guessed.

Milky Way season in Trondheim

The Milky Way's bright core never climbs 20° above the horizon during astronomical darkness from Trondheim; the fainter band is still visible from a dark site.

• The north celestial pole stands 63.4° above the horizon, so stars within 63° of it never set from here.
• About 94.7% of the whole sky rises above the horizon at some point in the year from this latitude.
• The Galactic Centre never rises from this latitude, so the brightest stretch of the Milky Way stays permanently below the horizon.
• At 18 m elevation, roughly 0% of the atmosphere's mass is already below you, which measurably reduces extinction near the horizon.
• Above 63° the observing year is strongly seasonal: mid-summer nights may never reach astronomical darkness, while mid-winter delivers very long dark windows.

Tonight and aurora

As of October 17, 2026 (UTC) the Moon is a Waxing Crescent at 35% illumination. Aurora at 63.4° latitude generally needs about Kp 1.0.