Sun in H-alpha

This image was taken with a H-alpha telescope, which is specially designed for sun observations. The telescope is equipped with an interference filter that transmits light only in a narrow spectral range that corresponds exactly to the wavelength of excited hydrogen at 656.281 nm. It is called H-alpha because it is the brightest hydrogen line in sunlight. To show both protuberances and the surface of the sun it is necessary to adjust the telescope and take two seperate images, which are then combined in post.

  • Category

    Solar System

  • Distance

    1 AE

  • Apparent Mag

    −26,74 mag

  • Equipment

    LUNT LS60THa B1200
    ASI 174 MM Mono

  • Exposure

    Hα: 2 x 1000 frames

  • Publication Date


We are social!

© Jan Beckmann, all rights reserved