What question did this study set out to answer?

The work aims to characterize the solar H-alpha spectrum using a specialized telescope system.

April 30, 2026Open Access

Characterization of the Solar H-alpha Spectrum Using Lunt 50 mm Telescope with Pressure Tuning

GBGiorgio BergaminOsservatorio Astrofisico di Torino АБА. БемпорадSpecial Astrophysical Observatory CBC. Benna5T Torino (Italy)

Key Points

The work aims to characterize the solar H-alpha spectrum using a specialized telescope system.
Utilized a Lunt LS50 Hα telescope with a CMOS camera for observations.
Reconstructed solar spectrum from full-disk images at various pressure tuning steps.
Analyzed specific solar regions to compare with the expected Hα spectrum.
Characterization of solar spectrum reveals data on temperature and height of solar structures.
Comparison profiles align with theoretical expectations for the Hα spectrum.

Abstract

In this work we present the study of the Lunt LS50 Hα telescope equipped with a CMOS QHY5LII-C camera and the capability of reconstructing the solar spectrum through full-disk images of the Sun at different pressure tuning steps of the telescope. Furthermore, specific solar regions and structures were analyzed to obtain a profile comparable to the expected Hα spectrum. This allows us to investigate important physical parameters, such as temperature and height of the studied structures.

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