Sun Gallery

  • Sun in H-Alpha
    H-alpha (Hα) is a specific deep-red visible spectral line in the Balmer series with a wavelength of 656.28 nm in air and 656.46 nm in vacuum; it occurs when a hydrogen electron falls from its third to second lowest energy level. H-alpha light is the brightest hydrogen line in the …

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  • ISS Transit over the Sun
    ISS Zarya (International Space Station) in low orbit transits many times per day above our skies but sometimes the transit is exactly between your position on the Earth and the sun or the moon. It is possible to take a photo of this transit and see the shadow of the …

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  • Sun Spots
    The Sun may appear smooth and brilliant. But often is scattered with dark spots. Sunspots are areas that appear dark on the surface of the Sun. They appear dark because they are cooler than other parts of the Sun’s surface, about 6500 degrees. Solar flares are a sudden explosion of energy caused by …

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