Leeward College Observatory.

University observatory · Pearl City, Hawaii

Leeward College Observatory

Leeward College Observatory is an university observatory in Pearl City, Hawaii.

Leeward College Observatory in brief

Open to the public
Check before you go
Bortle class
Not yet rated

Official site

Can you visit Leeward College Observatory? Check before you go

Occasional campus stargazing nights with observatory tours; no regular public schedule found.

For telescope views near Leeward College Observatory, see the observatories open to the public and astronomy clubs nearby; clubs hold free public star parties.

Leeward College Observatory
Leeward College Observatory

What Leeward College Observatory observes

The list does not describe the instruments at Leeward College Observatory yet; the official site has them.

How dark the sky is at Leeward College Observatory

Leeward College Observatory has no Bortle rating in the list yet. The scale below shows what each class looks like.

1 mag 8.0 21.99+ 2 mag 7.5 21.89+ 3 mag 7.0 21.69+ 4 mag 6.5 20.49+ 5 mag 6.0 19.50+ 6 mag 5.5 18.94+ 7 mag 5.0 18.38+ 8 mag 4.5 18.00+ 9 mag 4.0
The Bortle scale. Each panel shows the class number, the faintest star the naked eye reaches at the zenith, and the darkest-edge sky brightness reading of that class in mag/arcsec².

Sky brightness and class come from the World Atlas of Artificial Night Sky Brightness (Falchi et al. 2016, CC BY-NC 4.0), with natural skyglow added, at the coordinates below. Research telescopes are often sited on mountains above the haze, so the real sky can be darker than the map suggests.

Leeward College Observatory among the observatories of Hawaii

Dark sky place Research or private observatory Observatory open to the public

Green dots are observatories open to the public, blue dots research or private sites, squares dark sky places; select one for its page. See Hawaii observatories for the full list.

The coordinates on this page point to Leeward Community College campus (Wikipedia point): 21.393°N, 157.984°W.

Map data © OpenStreetMap contributors. Open the larger map · Directions. Mountain observatory roads are often gated after dark; go only on a scheduled public night.

Dark sky places, observatories and clubs near Leeward College Observatory

Nearest dark sky places

PlaceWhereBortleDistance
Hanauma BayHawaii433 km (20 mi)
Pala'au State ParkHawaii2104 km (65 mi)
Polipoli Spring State Recreation AreaHawaii3186 km (116 mi)
Waimea Canyon State ParkHawaii2188 km (117 mi)
Ha'ena State ParkHawaii2189 km (117 mi)
Na Pali-Kona Forest ReserveHawaii2190 km (118 mi)

Other observatories open to the public within 150 km

  • Lanihuli ObservatoryKaneohe, Hawaii, 18 km (11 mi). Open to the public free after evening Hokulani Imaginarium shows; tours by appointment (808-235-7321)

Astronomy clubs within 150 km

Planning a trip? Astrotourism in Hawaii puts the dark sky places, observatories, clubs, star parties, planetariums and science centers of the state on one map, with the best night out worked out.

Leeward College Observatory record

Every value in the observatories dataset for Leeward College Observatory
ID248
NameLeeward College Observatory
AddressLeeward Community College
CityPearl City
StateHI
Zip96782
CountryUSA
Webspacegrant.hawaii.edu/leeward.hsgc.html
Lat21.39300
Lon-157.98400
LatLonSpotLeeward Community College campus (Wikipedia point)
StatusActive
StatusNoteCampus observatory toured at college stargazing events in 2025
PublicNoteOccasional campus stargazing nights with observatory tours; no regular public schedule found
Sourceshttps://www.hawaii.edu/news/2025/09/30/leeward-cc-astronomy-under-the-stars/

From the site's observatories dataset (observatories_q426). Distances are computed from the coordinates.