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  2. Haleakalā Observatory - Wikipedia

    en.wikipedia.org/wiki/Haleakalā_Observatory

    The Haleakalā Observatory, also known as the Haleakalā High Altitude Observatory Site, is Hawaii's first astronomical research observatory. [1] It is located on the island of Maui and is owned by the Institute for Astronomy of the University of Hawaiʻi, which operates some of the facilities on the site and leases portions to other organizations.

  3. Haleakalā National Park - Wikipedia

    en.wikipedia.org/wiki/Haleakalā_National_Park

    Haleakalā National Park is a national park of the United States located on the island of Maui, Hawaii.Named after Haleakalā, a dormant volcano within its boundaries, the park covers an area of 33,265 acres (52.0 sq mi; 134.6 km 2), [1] of which 24,719 acres (38.6 sq mi; 100.0 km 2) is a wilderness area. [3]

  4. Haleakalā - Wikipedia

    en.wikipedia.org/wiki/Haleakalā

    These high hazard estimates for Haleakalā are based on the frequency of its eruptions. Haleakalā has erupted three times in approximately the last 900 years. By way of comparison, both Mauna Loa and Kilauea have erupted more than a dozen times each in the last 90 years. Hualalai has an eruption rate comparable to Haleakalā. All of Hualalai ...

  5. Haleakala Trail - Wikipedia

    en.wikipedia.org/wiki/Haleakala_trail

    [4] At this time, the trail was also marked by guideposts every 500 feet in order to assist travelers finding their way in the fog, which is a common occurrence in the area. [5] In 1935, with the completion of State of Hawaii road 378, the current access to Haleakalā National Park, the Haleakala Trail fell into disuse. [6]

  6. Kula, Hawaii - Wikipedia

    en.wikipedia.org/wiki/Kula,_Hawaii

    The ancient district of Kula. Kula roughly extends from Haleakala Highway (Hawaii Route 37) in the north to Keokea in the south—a distance of about 16 miles (26 km) around 20°47'32" N, 156°19'37" W. [4] The largely rural area known as Upper Kula includes the region up-slope (southeast) from Lower Kula, the more densely populated area spread along the Kula Highway.

  7. Sunrise equation - Wikipedia

    en.wikipedia.org/wiki/Sunrise_equation

    The above relation implies that on the same day, the lengths of daytime from sunrise to sunset at and sum to 24 hours if =, and this also applies to regions where polar days and polar nights occur. This further suggests that the global average of length of daytime on any given day is 12 hours without considering the effect of atmospheric ...

  8. Crater Historic District - Wikipedia

    en.wikipedia.org/wiki/Crater_Historic_District

    The Crater Historic District encompasses National Park Service structures within Haleakala National Park. The buildings include utility structures, employee housing, administration and visitor services facilities. The Civilian Conservation Corps built most to standard Park Service designs in the 1930s.

  9. Sunset - Wikipedia

    en.wikipedia.org/wiki/Sunset

    Sunset (or sundown) is the disappearance of the Sun at the end of the Sun path, below the horizon of the Earth (or any other astronomical object in the Solar System) due to its rotation. As viewed from everywhere on Earth, it is a phenomenon that happens approximately once every 24 hours, except in areas close to the poles.