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Tag: partial

  • Proba-2’s partial eclipses

    Proba-2’s partial eclipses

    As the US enjoyed a total solar eclipse on 21 August 2017, ESA’s Sun-watching Proba-2 satellite captured three partial eclipses from its viewpoint, 800 km above Earth. Proba-2 orbits Earth about 14.5 times per day, and thanks to the constant change in viewing angle, it dipped in and out of the Moon’s shadow several times during the solar eclipse.

    The Proba-2 images were taken by the SWAP imager, and show the solar disc in extreme-ultraviolet light to capture its turbulent surface and swirling corona corresponding to temperatures of about a million degrees.

    Credits: ESA/Royal Observatory Belgium

  • Proba-2 partial eclipses

    Proba-2 partial eclipses

    ESA’s Earth-orbiting Proba-2 satellite observed three partial solar eclipses on the morning of 13 September 2015 along with an additional passage of the Moon close to the edge of the Sun. The image was taken with Proba-2’s SWAP imager, which views the solar disc at extreme ultraviolet wavelengths to capture the turbulent surface of the Sun and its swirling corona, which can clearly be seen in between eclipses in this movie. The Sun’s rotation can also be seen.

    Time is shown in GMT

    Credit: ESA/ESA/Royal Observatory of Belgium

  • Proba-2 views partial eclipse

    Proba-2 views partial eclipse

    ESA’s Proba-2 Sun-watcher saw Australia’s 29 April 2014 partial solar eclipse from orbit – footage captured by the Royal Observatory of Belgium.

  • Proba-2 sees three partial solar eclipses

    Proba-2 sees three partial solar eclipses

    The total solar eclipse of 13-14 November 2012 was only visible to ground-based observers situated in northern Australia, while ESA’s Sun-watching satellite Proba-2 enjoyed three partial eclipses from its viewpoint in space. The constant change in viewing angle of Proba-2 as it orbits the Earth meant that the satellite passed through the Moon’s shadow a total of three times during the eclipse event. The video was produced from images taken by Proba-2’s SWAP imager, which snaps the Sun in ultraviolet light to reveal stormy active regions on the solar disc.

    The apparent noise in the movie results from high energy particles hitting Proba-2’s electronics as the spacecraft passes through the South Atlantic Anomaly. The dimming in the movie is an effect as part of the satellite’s orbit passes through the shadow of the Earth.

    Read full article here: http://www.esa.int/esaSC/SEMFYC72Q8H_index_0.html