Fresno Stargazing & Astronomy Report

Key Sky Quality Metrics

SQM (mag/arcsec²)

17.74

Bortle class

Class 9 (Class 9)

Darkness Quotient

21%

Dataset

July 2026

Inner city sky

Fresno: The Practical Verdict

Fresno, located in California, is a major city characterised by high light pollution. This environment results in a severe urban sky, significantly limiting its potential for serious stargazing. The quality of the night sky here ranks at the bottom tier, with only the brightest objects cutting through the glare of this inner city setting.

The Milky Way is entirely obscured from view within Fresno's urban limits. Observers will find their view largely confined to solar system objects such as the Moon and the planets, along with bright stars and occasional double stars. Attempts to observe deep-sky objects visually are largely futile.

For a substantial improvement in night-sky conditions, consider travelling to Monterey County, California, which lies about 110 km south-west. This location offers a more favourable environment for observing a broader swath of celestial objects under Bortle 4 skies, widening your observational possibilities considerably.

At a Glance

Overall

Severe urban sky - This is a severely light-polluted urban sky. Only the Moon, planets, bright stars, and a few specialist targets remain practical.

Milky Way

Not visible - The Milky Way is not visible from this sky.

Best targets from here

Moon, planets, bright stars, double stars, solar system events, narrowband imaging only with care

Do not prioritise

visual deep-sky observing, broadband galaxies, reflection nebulae, widefield Milky Way

Best nearby upgrade

Monterey County, California sits about 109 km south west and reaches Bortle 4, roughly 24x darker.

Good dark window

Fresno's longest dark windows fall in December and January, with the shortest nights around June and July. Plan deep-sky sessions around the autumn and winter months for the best combination of long nights and true astronomical darkness.

Frequently Asked Questions

Can you see the Milky Way from Fresno?

No. Fresno is a Bortle Class 9 sky with SQM 17.74, so the Milky Way is not visible from the city. For Milky Way photography, look for a Bortle 4 or darker site.

What Bortle class is Fresno?

Fresno is Bortle Class 9 (SQM 17.74), a severe urban sky for astronomy.

Is Fresno good for stargazing?

Not for serious deep-sky observing. Fresno is a severe urban sky where the Moon, planets, and a handful of bright targets are the realistic options from the city itself.

Is Fresno good for astrophotography?

Broadband deep-sky imaging is heavily compromised from Fresno and a Bortle 4 or darker site is strongly recommended. Even narrowband imaging is difficult from Fresno without careful processing.

What can you observe from Fresno?

Primary targets from Fresno include Moon, planets, bright stars, double stars, solar system events. Targets such as visual deep-sky observing, broadband galaxies, reflection nebulae are not realistic from this sky.

Where are darker skies near Fresno?

The closest meaningfully darker mapped site is 2256, California, about 38 km south south east of Fresno, reaching Bortle 6.

When is the sky darkest in Fresno?

The sky over Fresno is darkest around January, December.

Is light pollution in Fresno getting better or worse?

Long-term light pollution over Fresno has been broadly stable across the available measurements.

• 2256, California

  Direction

  SSE

  Distance (km)

  37.6

  SQM

  19.85

  Bortle

  6

• Vanguard, California

  Direction

  SSW

  Distance (km)

  56.1

  SQM

  20.40

  Bortle

  5

• Monterey County, California

  Direction

  SW

  Distance (km)

  108.8

  SQM

  21.20

  Bortle

  4

• Mc Creery Ranch Road, California

  Direction

  W

  Distance (km)

  111.1

  SQM

  20.71

  Bortle

  5

• Merced County, California

  Direction

  NW

  Distance (km)

  93.8

  SQM

  20.11

  Bortle

  6

• San Luis Obispo County, California

  Direction

  S

  Distance (km)

  161.4

  SQM

  21.08

  Bortle

  4