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Sunspot Solar Observatory

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Sunspot Solar Observatory

The Sunspot Solar Observatory (SSO) is an astronomical observatory designed for the study of the Sun. The observatory is operated by New Mexico State University (NMSU) and the U.S. National Solar Observatory (NSO). It is split between operations at the telescope facility at Sunspot, New Mexico, and data and management at the Department of Astronomy at New Mexico State University. The Sunspot telescope facility is in the Sacramento Mountains, approximately 18 miles (29 km) south of Cloudcroft. Access to the facility telescopes and grounds are open for to the public for guided tours. It is funded by the National Science Foundation in partnership with the state of New Mexico.

The Sunspot telescope facility is located in Sunspot, New Mexico, and is part of the Lincoln National Forest on the western edge of the Sacramento Mountains. The ~250-acre (100 ha) area is located on National Forest Service lands, managed by the U.S. Department of Agriculture, U.S. Forest Service (USFS), Lincoln National Forest, and the Sacramento Ranger District. Established by the U.S. Air Force (USAF) via a Memorandum of Agreement with the USFS in 1950, the facility was transferred to NSF in 1976. NSF and the USFS executed a land use agreement (1980) to formalize this transfer and the continued use of the land for the NSO. It was later known as the Sacramento Peak Observatory, and as one site of the National Solar Observatory (NSO). In 2018, all scientific research and public outreach at the telescope facility was taken over by the Sunspot Solar Observatory and AURA remain the operator of infrastructure on the site, including maintenance.

Sunspot Solar Observatory is a global consortium that currently consists of personnel both in Sunspot, New Mexico, at New Mexico State University in Las Cruces, New Mexico, and other institutes across the world

The flagship telescope at the Sacramento Peak Observatory is the Richard B. Dunn Solar Telescope (DST), previously known as the Vacuum Tower Telescope.

In addition to the DST, Sunspot Solar Observatory hosts four other telescopes.

The John W. Evans Solar Facility (originally built 1952) hosted instruments for the High Altitude Observatory and the Air Force Research Lab and until 2009 obtained daily observations of million degree coronal emission that were used to predict the onset of the following solar cycle.

The other two Dome buildings (Hilltop Dome 1963, Grain Bin Dome 1950) are not used for research.

An Antarctic Mount telescope is situated beside the Visitors' Center on site and provides a light feed into the Visitors' Center. As the name suggests, this telescope was previously deployed in the Antarctic.

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