Billings Stargazing & Astronomy Report

Light pollution and stargazing locations near Billings

City
Billings
Country
United States
Latitude
45.7833
Longitude
-108.5007

Key Sky Quality Metrics

SQM (mag/arcsec²)
18.30
Bortle class
Class 8 (Class 8)
Darkness Quotient
26%
Dataset
March 2026

City sky

Stargazing in Billings

Billings is the largest city in Montana, a regional commercial hub on the northern Great Plains with a distinctly open, big-sky setting.

With a Darkness Quotient of 26%, Billings sits in the High Light Pollution tier — brighter than many smaller western towns, though still better placed than the most heavily lit major metros.

In practical terms, brighter targets are the most realistic from within the city: the Moon, planets, double stars and the brightest open clusters. A few showpiece deep-sky objects can still be attempted, but faint galaxies, subtle nebulae and the Milky Way are largely overwhelmed by the city glow.

The encouraging part is that noticeably darker skies begin quite quickly outside Billings, especially to the north and east. For truly excellent darkness, though, you are looking at a much longer trip of around 260 kilometres, with the nearest named site to the south-south-west near Near Blaine County, Montana.

The map shows Billings as a bright central light dome with a hot core and a broad halo fading through green and blue into surrounding grey. That pattern is typical of a city that strongly dominates its immediate area but sits within a much darker wider landscape.

Away from the urban core, the background turns dark fairly quickly in most directions, which suggests the city is relatively isolated rather than merging into a continuous corridor of development. There are plenty of smaller light pools scattered around the region, but they appear as separate points rather than one unbroken belt.

The darkest-looking areas on the map lie between these smaller settlements, especially beyond the main glow to the north, east and south-east. By comparison with its surroundings, Billings stands out clearly as the main source of artificial sky brightness in the area.

What the sky overhead is like

Looking straight up from Billings, the zenith is firmly bright by astronomical standards. At this level, the sky never becomes truly black overhead, and the fainter background star field is thinned out noticeably.

The familiar constellations are still easy to recognise, and brighter stars remain plentiful enough for casual stargazing. What you lose most are the dimmer stars between the main patterns, along with the soft background texture that makes the sky feel rich and deep in darker country locations.

For visual observing, this means overhead views are respectable for bright objects, but the city glow still cuts heavily into contrast.

north - good

About 15 kilometres north of Billings, the sky is already good, with a Bortle 4 reading. It improves further quite quickly, reaching genuinely dark conditions by around 25 kilometres and becoming excellent farther out.

north-north-east - fair

Around 15 kilometres to the north-north-east, conditions are fair, with a Bortle 5 sky. A more definite dark-sky step arrives by roughly 25 kilometres, after which the sky becomes very strong for serious observing.

north-east - fair

To the north-east, the sky at 15 kilometres is fair rather than truly dark, corresponding to Bortle 5. By about 25 kilometres the direction reaches clearly dark conditions, with even better darkness available farther on.

east-north-east - good

Around 15 kilometres east-north-east, the sky is already good at Bortle 4. It reaches genuinely dark territory by roughly 25 kilometres, making this one of the more rewarding directions for a short trip.

east - good

To the east, a 15-kilometre move from the city brings you to good Bortle 4 conditions. The sky darkens further by around 25 kilometres, with excellent rural darkness beyond that.

east-south-east - good

East-south-east performs well, with good Bortle 4 skies at about 15 kilometres from Billings. By roughly 25 kilometres it reaches properly dark conditions and continues to improve farther out.

south-east - good

To the south-east, the 15-kilometre sky is good, corresponding to Bortle 4. A little farther on, at around 25 kilometres, the sky becomes genuinely dark and very attractive for deep-sky observing.

south-south-east - good

South-south-east also gives a good result at 15 kilometres, with a Bortle 4 sky. Proper dark-sky conditions arrive by about 25 kilometres, so this is another practical escape route from the city glow.

south - good

Around 15 kilometres south of Billings, the sky is good at Bortle 4. It becomes darker by roughly 25 kilometres, though the improvement farther out is a little less smooth than in some other directions before turning excellent again.

south-south-west - fair

South-south-west is fair at 15 kilometres, with a Bortle 5 sky. It improves to good conditions not much farther out and reaches excellent darkness by around 50 kilometres.

south-west - marginal

South-west is one of the slower directions to improve, with marginal Bortle 6 conditions still present at 15 kilometres. You need a more substantial drive here, with good dark-sky quality not arriving until around 50 kilometres.

west-south-west - marginal

West-south-west remains marginal at 15 kilometres, corresponding to Bortle 6. The sky does improve meaningfully farther out, but the real step up comes at around 50 kilometres rather than close to the city.

west - marginal

To the west, the sky at 15 kilometres is still marginal, with a Bortle 6 reading. Conditions become good by around 25 kilometres and excellent by roughly 50 kilometres, but this is not the quickest direction for an immediate escape.

west-north-west - fair

West-north-west gives fair conditions at 15 kilometres, with a Bortle 5 sky. By about 25 kilometres it reaches properly dark conditions, and farther out it becomes excellent.

north-west - good

North-west is already good at 15 kilometres, returning a Bortle 4 sky. It reaches genuinely dark conditions by roughly 25 kilometres and keeps improving beyond that.

north-north-west - good

To the north-north-west, the sky is good at 15 kilometres, again around Bortle 4. By about 25 kilometres it becomes properly dark, making this a strong direction for a short observing run.

zenith - poor

Straight overhead in Billings, the zenith is poor for dark-sky observing, with a Bortle 8 sky and an SQM of 18.3. You can still make out the main constellations and brighter stars, but the background is washed bright enough that many fainter stars and the Milky Way's finer structure are lost.

  • Near Blaine County, Montana
    Direction
    SSW
    Distance (km)
    257.7
    SQM
    21.77
    Bortle
    2

    Milky Way, faint nebulae, deep-sky imaging

  • Near Cascade County, Montana
    Direction
    NW
    Distance (km)
    259.4
    SQM
    21.75
    Bortle
    2

    Milky Way, faint nebulae, deep-sky imaging

  • Near Fremont County, Wyoming
    Direction
    S
    Distance (km)
    267.4
    SQM
    21.75
    Bortle
    2

    Milky Way, faint nebulae, deep-sky imaging

Genuinely dark skies are much easier to reach from Billings than from most big cities, and a worthwhile improvement begins after only a short drive. In several directions, conditions are already good at roughly 25 kilometres from the city, while the nearest named truly dark site is around 260 kilometres away to the south-south-west near Near Blaine County, Montana.

If you simply want a practical step up from the city, heading north, east or south-east gives you the quickest escape from the main light dome.

  • Within 500 km
    Place
    Near Blaine County, Montana
    Direction
    SSW
    Distance (km)
    257.7
    SQM
    21.77
    Bortle
    2

Long-term trend

Billings has been fairly stable over the long term, with only a slight overall brightening in the record. The trend slope is very small, so this is not a place where the sky appears to be changing dramatically year by year.

The latest reading is 18.3 SQM, compared with an earliest value of 18.48 SQM, and the long-run mean also sits at 18.48 SQM. That points to a city whose night sky has stayed broadly consistent, even if there have been occasional brighter or darker outliers in the archive.

The full range runs from 17.92 SQM at the bright end to 22 SQM at the dark end across 75 datasets, so short-term conditions can vary a lot more than the underlying long-term pattern.

From within Billings itself, the most reliable observing is centred on bright, high-contrast targets. The Moon and planets come through well, and double stars or the brightest star clusters are still worthwhile in a small or medium telescope.

A few classic deep-sky showpieces can be attempted with care, especially when they are high in the sky, but contrast is the limiting factor. Large faint objects are where the city sky becomes most restrictive.

If you want the Milky Way, richer nebula structure, galaxy hunting or a more impressive meteor display, Billings rewards even a modest drive out of town.

  • Moon
  • planets
  • double stars
  • brightest open clusters
  • bright nebulae (M42)
  • brightest globular clusters
  • Milky Way
  • faint galaxies
  • broadband nebulae
  • meteor showers

Can you see stars from Billings?

Yes — plenty of brighter stars and the main constellations are visible from Billings. What drops away are the fainter stars, so the sky looks simpler and less crowded than it does from a dark rural site.

Can you see the Milky Way from Billings?

Not well from within the city itself. Under a Bortle 8 sky with SQM 18.3, the Milky Way is largely washed out by artificial skyglow, though it becomes much more realistic once you get outside the urban light dome.

What Bortle class is Billings?

Billings is rated Bortle 8, which is a bright city sky. In practice that means good viewing for the Moon and planets, but a much tougher environment for faint deep-sky objects.

What is the SQM in Billings?

The measured sky brightness for Billings is 18.3 SQM. That is typical of a noticeably light-polluted urban sky rather than a dark rural one.

Where are the nearest dark skies from Billings?

A worthwhile improvement starts fairly quickly outside the city, especially to the north, east and south-east, where good conditions appear after a short drive. The nearest named truly dark site in the supplied locations is Near Blaine County, Montana, about 257.7 kilometres away to the south-south-west.

Is Billings good for astrophotography?

It can be good for lunar, planetary and brighter deep-sky imaging, especially if you work carefully with filters and processing. For wide-field Milky Way shots or faint nebula work, you will get far better results by leaving the city and shooting under darker skies.

How far do you need to drive from Billings for darker skies?

For a noticeable improvement, you do not need to go especially far — several directions reach good Bortle 4 skies at around 15 kilometres, and darker still by about 25 kilometres. For a named site with truly excellent darkness, the nearest listed option is roughly 257.7 kilometres away.