File:Halpha -24kms SST Active Region limb 04-Jul-2013.webm
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Size of this JPG preview of this WEBM file: 584 × 600 pixels. Other resolutions: 234 × 240 pixels | 468 × 480 pixels | 748 × 768 pixels | 1,052 × 1,080 pixels.
Original file (WebM audio/video file, VP9, length 8.0 s, 1,052 × 1,080 pixels, 4.87 Mbps overall, file size: 4.63 MB)
Captions
Captions
Chromosphere of the Sun in the H-alpha spectral line
Summary[edit]
| Description |
English: Movie of the solar chromosphere observed with the Swedish 1-m Solar Telescope (SST) on La Palma, Spain. The movie shows many examples of spicules: thin, elongated jets of a few hundred kilometers wide that can reach up to heights of 6000 km and that can move at speeds of more than 100 km/s. The movie further shows a surge: a larger scale eruption that ejects plasma up to a height of about 22000 km above the surface. This false colour movie is made from monochromatic images taken at a
wavelength of 656.25 nm, an offset of -0.05 nm from the H-alpha spectral line, which is equivalent to a Doppler offset of -24 km/s. It therefore preferentially shows chromospheric plasma flows that are moving towards the observer. Instrument : Swedish 1-m Solar Telescope / CRISP wavelength : H-alpha blue wing 656.3 - 0.05 nm (Doppler offset -24 km/s) duration : 28 min target : active region AR11778 close to the limb at (x,y) = (914", -127") Observation : Luc Rouppe van der Voort (University of Oslo, Norway) |
| Date | |
| Source | Own work |
| Author | Luc.rouppe |
Licensing[edit]
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 15:59, 25 March 2020 | 8.0 s, 1,052 × 1,080 (4.63 MB) | Luc.rouppe (talk | contribs) | Uploaded own work with UploadWizard |
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