Alignment aberrations of the New Solar Telescope

Anastacia M. Manuel; James H. Burge

doi:10.1117/12.828511

21 August 2009 Alignment aberrations of the New Solar Telescope

Anastacia M. Manuel, James H. Burge

Proceedings Volume 7433, Optical System Alignment, Tolerancing, and Verification III; 74330A (2009) https://doi.org/10.1117/12.828511
Event: SPIE Optical Engineering + Applications, 2009, San Diego, California, United States

Abstract

The New Solar Telescope (NST) is an off-axis Gregorian telescope at Big Bear Solar Observatory (BBSO). This paper presents the expected aberrations due to misalignments of the secondary mirror for a general Gregorian telescope using an optical model of the on-axis "parent" telescope version of NST. The sensitivities of linear astigmatism and constant coma found by perturbing the axisymmetric model are presented and shown to match those predicted by the theory. Then we discuss how the actual aberrations are different due to the off-axis nature of the NST. Finally, we discuss the effect of the misalignments on the pointing of the telescope.

Citation Download Citation

Anastacia M. Manuel and James H. Burge "Alignment aberrations of the New Solar Telescope", Proc. SPIE 7433, Optical System Alignment, Tolerancing, and Verification III, 74330A (21 August 2009); https://doi.org/10.1117/12.828511

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