Glendale Stargazing & Astronomy Report

Light pollution and stargazing locations near Glendale

City
Glendale
Country
United States
Latitude
33.5387
Longitude
-112.1860

Key Sky Quality Metrics

SQM (mag/arcsec²)
17.88
Bortle class
Class 9 (Class 9)
Darkness Quotient
22%
Dataset
March 2026

Inner city sky

Stargazing in Glendale

Glendale is a major suburban city in the Phoenix metropolitan area of south-central Arizona, known for its sprawling urban setting and desert-edge location. The city sits in the High Light Pollution tier with a Darkness Quotient of 22% — making it brighter than most smaller inland towns and closer in character to the world's more heavily lit urban areas.

In practical terms, brighter targets are the most realistic from within the city: the Moon, planets, double stars and the brightest open clusters. Faint galaxies, nebulae and the Milky Way are largely overwhelmed by the urban skyglow.

Meaningfully darker skies do not appear close to hand, and you need to leave the metro glow properly behind before conditions improve. The nearest strong step up is about 85 kilometres to the south, near Near Yavapai County, Arizona, where skies reach dark rural quality.

The map shows Glendale embedded within a broad, intensely bright urban core, with a large white-pink centre surrounded by red, orange and yellow halos. That pattern points to heavy city lighting across the wider metropolitan area rather than a small isolated hotspot.

Away from the central glow, the colours fade through green and blue into grey and black, showing that genuinely darker desert skies do exist beyond the urban fringe. The darkest-looking regions are most apparent farther to the north, north-east and west of the main light dome, while the south and south-west still show brighter patches and separate clusters of development.

Overall, Glendale appears much brighter than its immediate rural surroundings, but it is also part of a wider belt of artificial light rather than a lone source. From a stargazing point of view, the map suggests that escaping the city's glow is possible, though not with just a very short hop outside town.

What the sky overhead is like

Looking straight up from Glendale, the zenith is bright for astronomy, with an SQM of 17.88 and an inner-city sky character. The background sky never becomes truly black, and familiar constellations tend to look thinned out rather than richly filled with fainter stars.

The brightest stars, planets and the Moon still stand out clearly, but subtle features are lost quickly. Under this sort of sky, the main impression is of a persistent urban light dome washing out contrast even overhead, not just near the horizon.

north - poor

About 15 kilometres north of Glendale, the sky is still poor for astronomy, sitting at Bortle 8. The encouraging part is that this direction improves quite strongly further out, with genuinely dark skies reached at around 100 kilometres.

north-north-east - poor

At around 15 kilometres to the north-north-east, conditions are still poor, with a Bortle 8 sky. Travel farther in this direction and the sky improves markedly, reaching dark conditions at about 100 kilometres.

north-east - poor

A quick move north-east still leaves you under a poor sky at roughly 15 kilometres, with Bortle 8 conditions. Better skies build gradually, and genuinely dark conditions are reached at around 100 kilometres.

east-north-east - poor

At roughly 15 kilometres east-north-east of the city, the sky remains poor, again around Bortle 8. This direction does improve with distance, with dark rural conditions appearing at about 100 kilometres.

east - poor

Fifteen kilometres east of Glendale still counts as poor sky for stargazing, at Bortle 8. There is a worthwhile improvement farther out, and dark conditions arrive at around 100 kilometres.

east-south-east - poor

East-south-east is one of the tougher nearby directions, with the sky still poor at 15 kilometres and effectively inner-urban in character. It does eventually improve, but genuinely dark skies are farther out here, at around 200 kilometres.

south-east - poor

At 15 kilometres south-east, the sky is poor and heavily light-polluted, at Bortle 9. Conditions improve later on, but genuinely dark skies are not reached within the sampled distance in this direction.

south-south-east - poor

A short drive south-south-east still leaves you under a poor sky at 15 kilometres, with Bortle 9 conditions. There is improvement farther out, but genuinely dark skies only appear at around 200 kilometres.

south - poor

South of Glendale, the sky at 15 kilometres is still poor, though slightly improved from the city centre at Bortle 8. Push on much farther and this becomes a useful direction, with dark skies reached at around 100 kilometres.

south-south-west - poor

At roughly 15 kilometres south-south-west, the sky remains poor for anything beyond bright targets, at Bortle 8. This direction improves steadily, with genuinely dark conditions turning up at about 100 kilometres.

south-west - poor

South-west of the city, the 15-kilometre sky is still poor, around Bortle 8. Farther out it becomes a much better prospect, though the darkest conditions in this direction do not arrive until around 200 kilometres.

west-south-west - poor

Around 15 kilometres west-south-west of Glendale, the sky remains poor at Bortle 8. A much better result is possible if you keep going, with dark conditions reached at about 100 kilometres.

west - poor

West of the city, the 15-kilometre sky is still poor, with Bortle 8 conditions. It does improve substantially farther out, and genuinely dark skies appear at around 100 kilometres.

west-north-west - poor

At 15 kilometres west-north-west, Glendale's light dome still dominates and the sky is poor at Bortle 8. This is a direction that rewards a longer drive, with dark skies reached at about 100 kilometres.

north-west - poor

North-west offers a poor sky at 15 kilometres, with Bortle 8 conditions still very much in effect. Continue outward and the improvement becomes significant, with dark skies appearing at around 100 kilometres.

north-north-west - poor

At roughly 15 kilometres north-north-west, the sky is still poor for deep-sky work, sitting at Bortle 8. Farther out, though, this direction improves well and reaches dark conditions at about 100 kilometres.

zenith - poor

Looking straight up from Glendale, the zenith is poor, matching a Bortle 9 inner-city sky. The brightest constellations remain recognisable, but many fainter stars vanish into the bright background, and the overall impression is of a washed-out urban sky rather than a truly dark one.

  • Near Coconino County, Arizona
    Direction
    WSW
    Distance (km)
    304.2
    SQM
    21.69
    Bortle
    3

    Milky Way visible, broadband DSO imaging

  • Near Yuma County, Arizona
    Direction
    SW
    Distance (km)
    227.7
    SQM
    21.47
    Bortle
    3

    Milky Way visible, broadband DSO imaging

  • Near Yavapai County, Arizona
    Direction
    S
    Distance (km)
    86.9
    SQM
    21.38
    Bortle
    3

    Milky Way visible, broadband DSO imaging

Genuinely dark skies require a meaningful drive from Glendale rather than a quick trip to the edge of town. The nearest proper dark-sky option in the supplied sites is about 85 kilometres to the south, near Near Yavapai County, Arizona, where conditions reach Bortle 3.

There is some improvement once you get well away from the urban core, but the immediate surroundings remain heavily affected by the Phoenix light dome.

  • Within 100 km
    Place
    Near Yavapai County, Arizona
    Direction
    S
    Distance (km)
    86.9
    SQM
    21.38
    Bortle
    3
  • Within 500 km
    Place
    Near Coconino County, Arizona
    Direction
    WSW
    Distance (km)
    304.2
    SQM
    21.69
    Bortle
    3

Long-term trend

Glendale's long-term sky-brightness record is fairly stable, but it edges in the wrong direction overall. The measured SQM changes from 17.99 in the earliest reading to 17.88 in the latest one, with a trend slope of -0.0098 SQM per year.

That is a small shift rather than a dramatic collapse, and the full range across the record stays relatively tight, from 17.81 to 18.18. In practice, though, Glendale has remained firmly in bright inner-urban territory throughout the period covered.

From within Glendale, the most rewarding targets are the bright, high-contrast ones. The Moon, planets, double stars and a few standout star clusters cope best with the city's bright background sky.

A handful of brighter deep-sky objects can still be attempted with care, especially with good transparency and some shielding from local lights. For the Milky Way, faint nebulae, galaxies and richer meteor watching, a darker site outside the metropolitan glow makes a dramatic difference.

  • Moon
  • planets
  • double stars
  • brightest open clusters
  • bright nebulae such as M42
  • the brightest globular clusters
  • Milky Way
  • faint galaxies
  • broadband nebulae
  • meteor showers

Can you see stars from Glendale?

Yes — but not in the rich, crowded way you get under darker skies. The brighter stars and main constellation patterns are visible, while many faint stars are washed out by the city's light pollution.

Can you see the Milky Way from Glendale?

For most observers, no. Under Glendale's Bortle 9 sky and SQM 17.88 conditions, the Milky Way is effectively lost in the urban glow.

What Bortle class is Glendale?

Glendale is Bortle Class 9, which is an inner-city sky. That means severe light pollution and very limited contrast for faint astronomical objects.

What is the SQM reading in Glendale?

The measured sky brightness is 17.88 SQM. In plain terms, that is a bright urban sky where only the stronger astronomical targets show well.

Where are the nearest dark skies from Glendale?

The nearest listed dark-sky site is Near Yavapai County, Arizona, about 86.9 kilometres away to the south, where the sky reaches Bortle 3. That is the nearest strong escape from the city glow in the supplied data.

Is Glendale good for astrophotography?

It can work for lunar, planetary and some narrow-field bright-target imaging, but it is not well suited to faint deep-sky astrophotography from within the city. For galaxies, wide-field Milky Way work and faint nebulae, a darker site is far more practical.

How far do you need to drive from Glendale for better stargazing?

For a major improvement, you are looking at roughly 85 kilometres to reach the nearest listed dark site near Near Yavapai County, Arizona. Some directions improve sooner than that, but the real step up comes once you are well clear of the Phoenix-area light dome.