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June 16, 2009 - TESIS has recorded new sizeable mass ejections from the Sun's atmosphere |
One of this year's largest mass ejections from the Sun's atmosphere was recorded last Sunday by TESIS telescopes aboard the CORONAS-PHOTON satellite (video - wmv 4.3 MB). The source of the ejection was the active area currently located on the far side of the Sun, which is, as yet, invisible from Earth. In total, approximately 103-106 million tons of ionized gas was released into interplanetary space.
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TESIS has recorded new sizeable mass ejections from the Sun's atmosphere |
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June 6, 2009 - This year's largest group of sunspots passes across the solar disk |
Today this year's largest group of sunspots will cross the Sun's central meridian. The group, registered as number 1019 in the international NOAA catalogue, was literally formed before astronomers' eyes several days ago on the visible side of the Sun. The first two spots appeared on the Sun's surface on May 31st. The next day, the number of spots in the group reached five, and the day after, on June 2nd, it was possible to count thirteen sunspots on solar disk, which had been clear prior to this. All of the spots fitted into an area with a lateral dimension of less than 100 thousand kilometers.
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This year's largest group of sunspots passes across the solar disk |
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June 2, 2009 - A malfunction in one of the TESIS telescopes has been fixed |
Specialists from the TESIS Control Centre, at the FIAN Laboratory of Solar X-ray Astronomy, have succeeded in fixing a malfunction in one of the observatory's central telescopes, which occurred in the second half of May. The first malfunctions in the operation of the Gershel x-ray telescope were logged on 10 May, 2009. The Gershel telescope was observing the corona and the transition layer of the Sun at a wavelength of 171 and 304A.
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A malfunction in one of the TESIS telescopes has been fixed |
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