Maunakea Spectroscopic Explorer (proposed).

Research observatory · Mauna Kea, Hawaii

Maunakea Spectroscopic Explorer (proposed)

Maunakea Spectroscopic Explorer (proposed) (MSE) is a research observatory in Mauna Kea, Hawaii. Maunakea Spectroscopic Explorer (proposed) is about 8 km (5 mi) from Mauna Kea, a Bortle Class 2 dark sky place.

Maunakea Spectroscopic Explorer (proposed) in brief

Open to the public
Not built yet
Status
Planned
Bortle class
Not yet rated
Observes in
Optical
Part of
Mauna Kea Observatories (MKO)

Official site

Can you visit Maunakea Spectroscopic Explorer (proposed)? Not built yet

Not built.

For telescope views near Maunakea Spectroscopic Explorer (proposed), see the observatories open to the public and astronomy clubs nearby; clubs hold free public star parties.

Maunakea Spectroscopic Explorer (proposed)
Maunakea Spectroscopic Explorer (proposed)

Telescopes at Maunakea Spectroscopic Explorer (proposed): optical

11.25 m.

upgrade to CFHT

Mauna Kea Observatories (MKO): 11 observatories on one site

How dark the sky is at Maunakea Spectroscopic Explorer (proposed)

Maunakea Spectroscopic Explorer (proposed) 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.

Maunakea Spectroscopic Explorer (proposed) 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 Advanced Electro-Optical System Mees Solar Observatory Solar-C Telescope Haleakala Observatory ATLAS Haleakala Tohoku Telescopes W. M. Keck Observatory Lanihuli Observatory Maunakea Observatories Maunakea Spectroscopic Explorer (proposed) Mauna Kea, Hawaii Maunakea Spectroscopic Explorer (proposed) Mauna Kea, 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 CFHT dome (planned MSE site): 19.825°N, 155.469°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 Maunakea Spectroscopic Explorer (proposed)

Maunakea Spectroscopic Explorer (proposed) is about 8 km (5 mi) from Mauna Kea, a Bortle Class 2 dark sky place. See Mauna Kea for camping, where to set up and the sky by season.

Nearest dark sky places

PlaceWhereBortleDistance
Mauna KeaHawaii27 km (5 mi)
Hawaii Volcanoes National ParkHawaii549 km (30 mi)
Kau Forest ReserveHawaii268 km (42 mi)
Manuka State WaysideHawaii188 km (55 mi)
Wai'anapanapa State ParkHawaii2120 km (74 mi)
Haleakala National ParkHawaii2128 km (80 mi)

Other observatories open to the public within 150 km

  • Maunakea ObservatoriesMauna Kea, Hawaii, 0 km (0 mi). Maunakea Visitor Information Station (2,800 m) hosts monthly reservation stargazing events; summit domes closed to public except resident KOE tours
  • W. M. Keck ObservatoryMaunakea, Hawaii Island, Hawaii, 1 km (0 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

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.

Maunakea Spectroscopic Explorer (proposed) record

Every value in the observatories dataset for Maunakea Spectroscopic Explorer (proposed)
ID413
NameMaunakea Spectroscopic Explorer (proposed)
AcronymMSE
Addresssummit
CityMauna Kea
StateHI
CountryUSA
Webhttps://mse.cfht.hawaii.edu
Publicn
Telescope11.25 m
ComplexMauna Kea Observatories (MKO)
Notesupgrade to CFHT
Opticaly
Lat19.82525
Lon-155.46888
LatLonSpotCFHT dome (planned MSE site)
StatusPlanned
StatusNoteDesign-phase proposal to replace CFHT; not funded for construction
PublicNoteNot built
Sourceshttps://mse.cfht.hawaii.edu/?page_id=7
ParkID195
ParkKm7.5

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