The NST: First results and some lessons for ATST and EST

Document Type

Article

Publication Date

6-1-2010

Abstract

In January 2009, first light observations with the NST (New Solar Telescope) in Big Bear Solar Observatory (BBSO) were made. NST has a 1.7 m primary with a 1.6 m clear aperture. First observational results in TiO and Hα are shown and discussed. The NST primary mirror is the most aspheric telescope mirror deployed to date. The NST is early in its commissioning, and the plans for this phase will be sketched. Lessons learned in building and implementing the NST are germane for the ATST and EST telescopes and will be discussed. The NST has an off-axis Gregorian configuration consisting of a parabolic primary, heat-stop, elliptical secondary and diagonal flats. The focal ratio of the primary mirror is f/2.4. The working wavelength range covers from 0.4 to 1.7 μm in the Coudé Lab beneath the telescope and all wavelengths including the far infrared at the Nasmyth focus on the dome floor. © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Identifier

77954603958 (Scopus)

Publication Title

Astronomische Nachrichten

External Full Text Location

https://doi.org/10.1002/asna.201011387

e-ISSN

15213994

ISSN

00046337

First Page

620

Last Page

623

Issue

6

Volume

331

Grant

0847126

Fund Ref

National Science Foundation

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