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Proceedings Paper • Open Access

METIS: the visible and UV coronagraph for solar orbiter
Author(s): M. Romoli; F. Landini; E. Antonucci; V. Andretta; A. Berlicki; S. Fineschi; J. D. Moses; G. Naletto; P. Nicolosi; G. Nicolini; D. Spadaro; L. Teriaca; C. Baccani; M. Focardi; M. Pancrazzi; S. Pucci; L. Abbo; A. Bemporad; G. Capobianco; G. Massone; D. Telloni; E. Magli; V. Da Deppo; F. Frassetto; M. G. Pelizzo; L. Poletto; M. Uslenghi; S. Vives; M. Malvezzi

Paper Abstract

METIS coronagraph is designed to observe the solar corona with an annular field of view from 1.5 to 2.9 degrees in the visible broadband (580-640 nm) and in the UV HI Lyman-alpha, during the Sun close approaching and high latitude tilting orbit of Solar Orbiter. The big challenge for a coronagraph is the stray light rejection. In this paper after a description of the present METIS optical design, the stray light rejection design is presented in detail together with METIS off-pointing strategies throughout the mission. Data shown in this paper derive from the optimization of the optical design performed with Zemax ray tracing and from laboratory breadboards of the occultation system and of the polarimeter.

Paper Details

Date Published: 17 November 2017
PDF: 11 pages
Proc. SPIE 10563, International Conference on Space Optics — ICSO 2014, 105631M (17 November 2017); doi: 10.1117/12.2304274
Show Author Affiliations
M. Romoli, Univ. of Florence (Italy)
F. Landini, INAF - Osservatorio Astrofisico di Arcetri (Italy)
E. Antonucci, INAF - Osservatorio Astrofisico di Torino (Italy)
V. Andretta, INAF - Osservatorio Astronomico di Capodimonte (Italy)
A. Berlicki, Astronomical Institute of the Academy of Sciences (Czech Republic)
S. Fineschi, INAF - Osservatorio Astrofisico di Torino (Italy)
J. D. Moses, Naval Research Lab. (United States)
G. Naletto, Univ. of Padova (Italy)
P. Nicolosi, Univ. of Padova (Italy)
G. Nicolini, INAF - Osservatorio Astrofisico di Torino (Italy)
D. Spadaro, INAF - Osservatorio Astrofisico di Catania (Italy)
L. Teriaca, Max-Plank-Institute für Sonnensystemforschung (Germany)
C. Baccani, Univ. of Florence (Italy)
M. Focardi, INAF - Osservatorio Astrofisico di Arcetri (Italy)
M. Pancrazzi, INAF - Osservatorio Astrofisico di Arcetri (Italy)
S. Pucci, Univ. of Florence (Italy)
L. Abbo, INAF - Osservatorio Astrofisico di Torino (Italy)
A. Bemporad, INAF - Osservatorio Astrofisico di Torino (Italy)
G. Capobianco, INAF - Osservatorio Astrofisico di Torino (Italy)
G. Massone, INAF - Osservatorio Astrofisico di Torino (Italy)
D. Telloni, INAF - Osservatorio Astrofisico di Torino (Italy)
E. Magli, Politecnico di Torino (Italy)
V. Da Deppo, CNR-Institute for Photonics and Nanotechnologies (Italy)
F. Frassetto, CNR-Institute for Photonics and Nanotechnologies (Italy)
M. G. Pelizzo, CNR-Institute for Photonics and Nanotechnologies (Italy)
L. Poletto, CNR-Institute for Photonics and Nanotechnologies (Italy)
M. Uslenghi, INAF - IASF (Italy)
S. Vives, Aix Marseille Univ., CNRS, LAM (France)
M. Malvezzi, Univ. of Pavia (Italy)


Published in SPIE Proceedings Vol. 10563:
International Conference on Space Optics — ICSO 2014
Zoran Sodnik; Bruno Cugny; Nikos Karafolas, Editor(s)

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