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View from an onshore wind turbine.

Denmark Denmark island

Samsø

Bortle 3: rural sky. Tonight's real sky above it, live.

Calculating the sky…

Drag to turn round. Stars from the HYG catalogue; glow and horizon from the light model and the terrain.

The usual sky here

Bortle 3.

The Milky Way is still structured, with some glow from towns low on the horizon.

75out of 100

Our own rating, from verifiable data only: sky brightness (60 points), clear nights (25), open horizon (10) and altitude (5).

  1. 1Excellent dark sky≥ 21.89 · stars to mag 7.6
  2. 2Truly dark sky21.69–21.89 · stars to mag 7.1
  3. 3Rural sky21.25–21.69 · stars to mag 6.6 You are here
  4. 4Rural–suburban transition20.49–21.25 · stars to mag 6.1
  5. 5Suburban sky19.50–20.49 · stars to mag 5.6
  6. 6Bright suburban sky18.94–19.50 · stars to mag 5.1
  7. 7Suburban–urban transition18.38–18.94 · stars to mag 4.6
  8. 8City sky17.80–18.38 · stars to mag 4.1
  9. 9Inner-city sky< 17.80 · stars to mag 3.6
  • 21.62Sky brightnessmag/arcsec² at the zenith — 21.9 is a natural sky
  • 6.4Faintest starthe faintest magnitude the naked eye can see here
  • 41 kmNearest big townover 50,000 people, in a straight line
  • 2 mAltitudeabove the sea: less air and haze above you
  • 99%Open skyof the half-sphere the relief leaves visible

Where the light comes from

The brightest glow on the horizon comes from Århus, 41 km to the north-west.

Each wedge is how much artificial light arrives from that direction (10° slices).

NESWÅrhus 41 kmCopenhagen 124 kmOdense 54 kmHamburg 261 km

An estimate of the usual sky with no Moon and no clouds, from NASA's night-lights map and a light-propagation model (about ±0.3 mag). A given night depends on the Moon, the clouds, dust and humidity.

When to go

Best from September to November.

Hours of truly dark night, hours with the core of the Milky Way up, how often the sky is clear and the coldest night, month by month.

  1. 12h17%1°Jan
  2. 10h19%0°Feb
  3. 8.0h28%2°Mar
  4. 4.8h39%5°Apr
  5. 0h39%9°May
  6. 0h39%13°Jun
  7. 0h36%15°Jul
  8. 2.8h34%16°Aug
  9. 6.8h34%13°Sep
  10. 9.3h29%10°Oct
  11. 11h21%6°Nov
  12. 12h18%3°Dec
  • Dark night (hours)
  • Milky Way core up
  • Clear sky
  • Coldest night
  • Best months

The Moon, night by night

A bright Moon washes out the faint stars. The highlighted nights are the dark ones (less than a quarter lit); below, the next new moons.

  • 9 Nov2026
  • 9 Dec2026
  • 7 Jan2027
  • 6 Feb2027
  • 8 Mar2027
  • 6 Apr2027

Night: Sun more than 18° below the horizon. Milky Way: the galactic centre more than 10° up during that night. Clear sky: 100 − NASA cloud amount (2001–2020). Coldest: average minimum brought to this altitude.

What happens in this sky

Meteors, eclipses, auroras.

Meteor showers

The next twelve months. The rate is what a dark sky shows with the radiant at its highest here; the Moon decides the rest.

  • Orionidspeak 21 Oct 2026 · up to 15 meteors an hourMoon 72% lit at the peak
  • Leonidspeak 17 Nov 2026 · up to 12 meteors an hourMoon 46% lit at the peak
  • Geminidspeak 14 Dec 2026 · up to 138 meteors an hourMoon 21% lit at the peak
  • Quadrantidspeak 4 Jan 2027 · up to 109 meteors an hourMoon 12% lit at the peak
  • Lyridspeak 22 Apr 2027 · up to 17 meteors an hourMoon 98% lit at the peak
  • Eta Aquariidspeak 6 May 2027 · up to 27 meteors an hourMoon 0% lit at the peak
  • Southern Delta Aquariidspeak 30 Jul 2027 · up to 8 meteors an hourMoon 16% lit at the peak
  • Perseidspeak 12 Aug 2027 · up to 100 meteors an hourMoon 77% lit at the peak

Eclipses

Lunar eclipses visible from here, and solar eclipses whose path crosses this country.

  • Partial lunar eclipse12 january 2028Moon 29° up at mid-eclipse · 53 min
  • Total lunar eclipse31 december 2028Moon 15° up at mid-eclipse · 71 min
  • Total lunar eclipse20 december 2029Moon 56° up at mid-eclipse · 53 min
  • Total lunar eclipse18 october 2032Moon 26° up at mid-eclipse · 46 min

Auroras

Auroras come with geomagnetic storms (Kp 4.5 or more), a few times a year, low on the horizon. Dark months: from August to April.

  1. 0quiet
  2. 1
  3. 2
  4. 3active
  5. 4
  6. 5storm
  7. 6
  8. 7strong
  9. 8
  10. 9extreme
Kp 4.5 reaches here

Estimate from the geomagnetic latitude (dipole model) and NOAA's oval boundaries. Watch the live Kp forecast before going out.

Meteor dates: International Meteor Organization peaks. Lunar eclipses: computed (J. Meeus) and shown only when the Moon is above this horizon. Solar eclipses: Eclipse Predictions by Fred Espenak, NASA/GSFC (country on the path).

The place

Samsø.

Island in Denmark

Samsø is an island in Denmark.

Its usual sky, with no Moon or clouds, is estimated at 21.62 mag/arcsec² — Bortle 3, rural sky: the naked eye reaches stars of magnitude 6.4.

The nearest town of over 50,000 people is 41 km away.

The best months are from September to November: long dark nights and clearer skies.

Auroras come a few times a year, with storms of Kp 4.5 or more.

The horizon is open all round: nothing in the relief rises more than 3°.

View from an onshore wind turbine.
DirectorOlav · CC BY-SA 4.0

Visit and sleep under the stars

  • Official informationRules, observing spots and events from those who manage the place.Official site
  • Samsø Observatoriumobservatory or planetarium · 6.7 km away
  • Sildeballe 3 Autocamperpladscampsite · 2.3 km · 10 within 10 km
  • Vadstrupgård 1771place to stay · 2.7 km · 16 within 10 km
  • Tranebjergnearest town · 4.0 km in a straight line
  • Odense Hans Christian Andersen Airport (ODE)nearest airport with scheduled flights · 47 km in a straight lineCar hire at BLL airport (Billund)Discover Cars · sponsored link

Plan the night

A guided night, a bed nearby, a car.

Some links above are affiliate links: if you book through them we may earn a commission, at no extra cost to you. It never changes what the data on this page says.

The horizon

360° around you.

The silhouette of the relief up to 30 km away (Copernicus DEM), with the light domes of the towns where they rise. Mountains are drawn taller than they are, to be seen.

NNEESESSWWNWÅrhus · 41 kmCopenhagen · 124 kmOdense · 54 kmHamburg · 261 km
NNEESESCopenhagen · 124 kmSSWWNWÅrhus · 41 kmOdense · 54 kmHamburg · 261 km
Samsø seen from above (Sentinel-2)
Seen from above: Sentinel-2 cloudless 2016 (EOX, CC BY 4.0), 6 × 6 km, north up. Points © OpenStreetMap contributors.

Around, in OpenStreetMap

  • 1observatories and planetariums within 30 kmSamsø Observatorium
  • 5viewpoints within 5 kmDyret, Besser Udsigtstårn and 3 more
  • 15named peaks within 5 kmHønsepold, Store Vorbjerg, Lille Vorbjerg and 12 more
  • 17shelters and huts within 5 km
  • 12car parks within 3 km
  • 10campsites within 10 kmSildeballe 3 Autocamperplads, Onsbjerg Shelterplads, Sælvigbugtens Camping and 7 more
  • 16places to stay within 10 kmVadstrupgård 1771, Den gamle Lægebolig, Nordgården Pension and 13 more
  • 1visitor centres within 5 kmVisit Samsø
  • 12restaurants and cafés within 5 km
  • 1street lamps mapped within 2 km
  • marked trails within 3 km

Counted in OpenStreetMap, the map anyone can edit. A low number may just mean nobody has mapped it yet.

In our other atlases

Around it, by day.

The mountain, island, lake, beach or canyon this place is, and what else is nearby in the family's atlases.

Peakyas10 mountains within 25 km
Bøgebjerg · 1.3 kmStore Vorbjerg · 2.7 kmDyret · 4.3 kmHønsepold · 6.2 kmJettehøj · 11 kmBallebjerg64 m · 13 kmVågehøj · 22 kmListrup Bakke · 24 km

Figures from the sister sites' databases (Wikidata, HydroATLAS, GeoNames, OpenStreetMap). Links open when each site is online.

Photographs

By day and by night.

Nordby Kirke (Samsø Kommune)
Bob Collowan · CC BY-SA 3.0
Nordby Samsø 20130708 151341
Henrik Hansen · CC BY-SA 4.0
Samsø field - panoramio
L-BBE · CC BY 3.0

Other skies nearby.

Samsø

Denmark

  • 75Darkskyas Score
  • 21.62Sky brightness
  • 3Bortle
  • 2 mAltitude

Brorfelde Observatory

Denmark · 71 km

  • 73Darkskyas Score
  • 21.39Sky brightness
  • 3Bortle
  • 60 mAltitude

See the guide

Ærø

Denmark · 111 km

  • 77Darkskyas Score
  • 21.68Sky brightness
  • 3Bortle
  • 46 mAltitude

See the guide

Lolland

Denmark · 132 km

  • 77Darkskyas Score
  • 21.68Sky brightness
  • 3Bortle
  • 12 mAltitude

See the guide

Where these figures come from

Name, type, certificationWikidata (Q216422) · CC0
Sky brightnessNASA Earth Observatory, Black Marble 2016 (Suomi NPP VIIRS) · Darkskyas light model (Walker's law, fitted to 18 measured sites)
Night, Moon, Milky Way, starsJ. Meeus, Astronomical Algorithms · HYG v4.4 · Stellarium modern_iau (CC BY-SA 4.0)
Horizon and altitudeCopernicus DEM GLO-90 / GLO-30 · © DLR e.V., © Airbus Defence and Space GmbH, Copernicus/ESA
Clouds and temperatureNASA POWER (CERES SYN1deg, 2001–2020; MERRA-2)
Solar eclipsesEclipse Predictions by Fred Espenak, NASA/GSFC
What is around© OpenStreetMap contributors · ODbL
ImagesEOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons
Sister atlasesPeakyas, Islandyas

Every figure is an average, an estimate or a count from a public dataset. Licences and methods: data sources.

The family

Do you prefer beaches, lakes, mountains, waterfalls, islands, rivers, canyons, caves, dark skies, viewpoints, birdwatching or forests?

Same idea, other landscapes: field atlases built on open data, in seven languages.

beachesCoastyaFind your beach: sea temperature, sun and swimming month by month.Visit lakesLakeyasEvery lake on Earth: water temperature, ice, depth and the shore.Visit mountainsPeakyasEvery summit in 3D: summit weather, the 0 °C line, huts and trails.Visit waterfallsCascadyasEvery waterfall: height, flow month by month and when it roars.Visit islandsIslandyasEvery island from the sea up: size, sea temperature, ferries and 3D.Visit riversRiveryasEvery river from source to sea: the journey, the flow and the basin in numbers.Visit canyonsCanyonyasEvery canyon cut to scale: depth to the floor, rim and floor temperatures, trails and viewpoints.Visit cavesCavernyasEvery cave with its real depth and length: the rock above, the temperature inside all year, and how to visit.Visit
dark skiesDarkskyasWhere the night is still dark: the sky of every place, the Milky Way month by month, the Moon, eclipses and auroras.You are here
viewpointsViewyasEvery viewpoint with its real 360° panorama: the peaks you can name, how far you see and where the sun sets.Coming soonVisit
birdwatchingBirdyasEvery bird sanctuary and wetland with the species recorded month by month: who is resident, who comes for the summer, who only passes through.Coming soonVisit
forestsForestyaEvery forest with its land-cover rings, what grows and lives in it, and the best months to walk it.Coming soonVisit