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STEREO HI-A1 2006-2017.mp4 (3.68 GB)

STEREO-Ahead heliospheric imagers 2006-2017 full mission data so far

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posted on 2017-09-05, 12:45 authored by Christian MoestlChristian Moestl, R. A. Harrison, J. A. Davies, HELCATS team
These are observations from the HI-1A camera on STEREO-Ahead, showing the solar wind from 4 to 24 degree pointing off the Sun. The movie covers almost 11 years of data, with a gap due to STEREO moving behind the Sun, as seen from Earth, from October 2014 to November 2015.

A plethora of solar wind phenomena can be seen, from comets with their two tails to solar storms and high speed solar wind streams. Once in a while, planets such as Venus or Mercury, visible as very bright dots, cross the camera field of view. Rings that accompany the planets are artifacts.

Until solar conjunction is reached in October 2014, the images had the Sun on the right, blocking the much more intense sunlight to see only white-light scattered off solar wind electrons. After conjunction, starting with November 2015, the spacecraft flipped and so has the camera, now with the Sun to the left in the images.

This data has been processed by the team at Rutherford Appleton Laboratoy in the UK under lead of R. A. Harrison and J. A. Davies. The data can be found at: http://www.stereo.rl.ac.uk

Catalogs of e.g. solar storms and results of various models applied to the data can be found here:

This movie was stitched together from monthly movies by Christian Möstl, IWF Graz, Austria, using Apple iMovie.
twitter: @chrisoutofspace

Funding

The presented work has received funding from the European Union Seventh Framework Programme (FP7/ 2007- 2013) under grant agreement No. 606692 [HELCATS].

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