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Information × Registration Number 0306U001558, 0103U000667 , R & D reports Title Research of Sun active phenomenons according to the data of Earth and space monitoring popup.stage_title Дослідження динаміки та морфології активних явищ на Сонці. Випробування нового спектрогеліографа Head Akimov Leonid Opanasovich, Registration Date 20-04-2006 Organization Kharkov national university named after V.N. Karazin popup.description2 The Sun is a subject of study. The goal of the work is as follows: 1.Takin fresh data on solar activity. 2. Study of flash activity of the Sun and its periodicity during 21 -23 cycle of solar activity as compared to previous one. 3. The investigation of the physical conditions and the structure of the low and middle chromosphere from D1,2 NaI lines. 4. Study of the day astroclimate on the site of the observational station of NSIA of the Kharkov National University. Monitoring of solar activity according to the program of the international net of Sun's survey and to the special programs also has been performed. Date on 15 solar flares and 16 fast processes were obtained from 56 days of observations. Collected data were send to World Data Centers and were published in Solar Geophysical Data. Images of the Sun in different spectral lines were insert in Internet. Software was created to process the observations with CCD-matrix/ The observations in Balmer continuum and HeI 1083nm were carried out. To analyze the development of solar activity in 22th ant 23th cycle both in optical and X-rays ranges the flare indices for these range (Nx, XFI) were calculated. Daily XFI indices for the period of 01.01.1986 to 31.05.2002 were represented on the site of NSIA of Kharkov Nation al University - khassm.virtualave.net. It was found that XFI-indices reveal two maximum: in 2000 of July and 2002 of August. It was shown that the energy released by X-ray flares during the first 77 months of 22 cycle almost five times larger than that released by the flares in the present cycle for the same period. The power spectrum for XFI and Nx indices revealed statistically meaningful maximums for periods of 25.5, 36.5, 73, 116, 150 twenty-four hours that probably corresponded to the frequencies of Sun's flare activity. It was supposed that the changing electric charge of Mercury could influence the origin of flares. The calculations confirming the idea were made. The observations of trembling of the solar limb were carried out with the help of a special device on the APhR-2 - telescope to study the astroclimate on the observational station of NSIA ofKhNU. It was found that the trembling amplitude during a stable weather had its minimum value (near 0.4") at the morning and evening hours. Product Description popup.authors popup.nrat_date 2020-04-02 Close