Phelps Stargazing & Astronomy Report

Key Sky Quality Metrics

SQM (mag/arcsec²)

21.28

Bortle class

Class 4 (Class 4)

Darkness Quotient

77%

Dataset

August 2026

Rural/suburban transition

Phelps: The Practical Verdict

Phelps, situated in the remote northern forests of Wisconsin, offers a very dark environment conducive to stargazing. The sky here is classified as Bortle Class 4, indicating a good workable sky. The primary limitation is the light dome to the north-west.

From this location, you can expect to comfortably observe bright galaxies, emission nebulae, and open or globular clusters. The Milky Way is faint or conditional, making it visible under optimal transparency and moonless conditions, but lacking the stark contrast of pristine dark sites. Viewing very low surface-brightness objects or engaging in ambitious Milky Way photography may prove challenging under average conditions.

This area is already among the darker parts of the region, making it an outstanding site for observing without the need for significant travel to reach darker skies.

At a Glance

Overall

Good workable sky - This is a good workable astronomy location. The sky is not pristine, but many deep-sky targets remain accessible.

Milky Way

Faint or conditional - The Milky Way may be visible under transparent, moonless conditions, but it will not have strong dark-site contrast.

Best targets from here

bright galaxies, emission nebulae, open clusters, globular clusters, Milky Way under good conditions, widefield imaging

Do not prioritise

very low surface-brightness objects, ambitious Milky Way photography under mediocre transparency

Already a strong sky

Phelps is already a strong astronomy location. There is no obvious reason to travel for a darker sky.

Good dark window

Phelps'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 Phelps?

Conditionally. From Phelps the Milky Way may show as a faint suggestion under transparent, moonless conditions, but it lacks dark-site contrast.

What Bortle class is Phelps?

Phelps is Bortle Class 4 (SQM 21.28), a good workable sky for astronomy.

Is Phelps good for stargazing?

Partly. Phelps offers a good workable sky where many bright targets remain accessible, but the faintest deep-sky work is compromised.

Is Phelps good for astrophotography?

Broadband deep-sky imaging is realistic from Phelps. Narrowband imaging of bright emission nebulae remains viable from Phelps with appropriate Ha or OIII filters.

What can you observe from Phelps?

Primary targets from Phelps include bright galaxies, emission nebulae, open clusters, globular clusters, Milky Way under good conditions. Targets such as very low surface-brightness objects, ambitious Milky Way photography under mediocre transparency are not realistic from this sky.

Where are darker skies near Phelps?

The closest meaningfully darker mapped site is Watersmeet Township, Michigan, about 36 km north west of Phelps, reaching Bortle 2.

When is the sky darkest in Phelps?

The sky over Phelps is darkest around January, December.

Is light pollution in Phelps getting better or worse?

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

• Town of Conover, Wisconsin

  Direction

  SW

  Distance (km)

  16.2

  SQM

  21.67

  Bortle

  3

• Watersmeet Township, Michigan

  Direction

  NW

  Distance (km)

  36.2

  SQM

  21.75

  Bortle

  2

• Pearson, Wisconsin

  Direction

  S

  Distance (km)

  77.7

  SQM

  21.61

  Bortle

  3