Advanced Electro-Optical System at 3,052 m (10,010 ft).

Research observatory · Mount Haleakala, Hawaii

Advanced Electro-Optical System

Advanced Electro-Optical System (AEOS) is a research observatory in Mount Haleakala, Hawaii. Advanced Electro-Optical System sits inside Haleakala National Park, a Bortle Class 2 dark sky place.

Advanced Electro-Optical System in brief

Open to the public
No regular public access
Elevation
3,052 m (10,010 ft)
Bortle class
Not yet rated
Operated by
DoD

Can you visit Advanced Electro-Optical System? No regular public access

Military site, no public access.

For telescope views near Advanced Electro-Optical System, see the observatories open to the public and astronomy clubs nearby; clubs hold free public star parties.

Advanced Electro-Optical System
Advanced Electro-Optical System

Telescopes at Advanced Electro-Optical System

3.67-m telescope.

10th largest optical telescope in the U.S.

How dark the sky is at Advanced Electro-Optical System

Advanced Electro-Optical System 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.

Advanced Electro-Optical System among the observatories of Hawaii

Ha'ena State Park Haleakala National Park Hanauma Bay Hawaii Volcanoes National Park Kalahaku Overlook Kau Forest Reserve Kaumahina State Wayside Koke'e State Park Manuka State Wayside Mauna Kea Na Pali-Kona Forest Reserve Pala'au State Park Polihale State Park Polipoli Spring State Recreation Area Pua'a Ka'a State Wayside Wai'anapanapa State Park Wailua Valley State Wayside Waimea Canyon State Park Mauna Loa Observatory Leeward College Observatory KEASA Observatory Gemini North Observatory Canada-France-Hawaii Telescope Subaru Telescope James Clerk Maxwell Telescope NASA Infrared Telescope Submillimeter Array Very Long Baseline Array - Mauna Kea Station UH 2.2m Telescope Thirty Meter Telescope (proposed) Pan-STARRS Faulkes Telescope North (LCO 2m) Inouye Solar Telescope Mees Solar Observatory Solar-C Telescope Maunakea Spectroscopic Explorer (proposed) Haleakala Observatory ATLAS Haleakala Tohoku Telescopes W. M. Keck Observatory Lanihuli Observatory Maunakea Observatories Advanced Electro-Optical System Mount Haleakala, Hawaii Advanced Electro-Optical System Mount Haleakala, 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 Haleakala Observatory site (complex-level, Wikipedia): 20.708°N, 156.257°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 Advanced Electro-Optical System

Advanced Electro-Optical System sits inside Haleakala National Park, a Bortle Class 2 dark sky place. See Haleakala National Park for camping, where to set up and the sky by season.

Nearest dark sky places

PlaceWhereBortleDistance
Haleakala National ParkHawaii21 km (1 mi)
Kalahaku OverlookHawaii24 km (3 mi)
Polipoli Spring State Recreation AreaHawaii310 km (6 mi)
Pua'a Ka'a State WaysideHawaii219 km (12 mi)
Wailua Valley State WaysideHawaii219 km (12 mi)
Kaumahina State WaysideHawaii220 km (13 mi)

Other observatories open to the public within 150 km

  • W. M. Keck ObservatoryMaunakea, Hawaii Island, Hawaii, 128 km (79 mi). Summit Visitors' Gallery inside Keck I open daily 10 am-2:30 pm (4WD above 9,200 ft); no night viewing; headquarters in Waimea
  • Maunakea ObservatoriesMauna Kea, Hawaii, 128 km (80 mi). Maunakea Visitor Information Station (2,800 m) hosts monthly reservation stargazing events; summit domes closed to public except resident KOE tours

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.

Advanced Electro-Optical System record

Every value in the observatories dataset for Advanced Electro-Optical System
ID265
NameAdvanced Electro-Optical System
AcronymAEOS
Addresssummit
CityMount Haleakala
StateHI
CountryUSA
Publicn
Size10
Telescope3.67-m telescope
ParentDoD
Notes10th largest optical telescope in the U.S.
Elevation3052
Lat20.70830
Lon-156.25710
LatLonSpotHaleakala Observatory site (complex-level, Wikipedia)
StatusActive
StatusNote3.67m telescope of the Air Force Maui Optical and Supercomputing site (AMOS)
PublicNoteMilitary site, no public access
Sourceshttps://en.wikipedia.org/wiki/Haleakal%C4%81_Observatory
ParkID187
ParkKm1.0

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