and also with the timing of the most intense sunspot activity.Sunspots were first observed centuries earlier… temporary, dark spots on the face of the Sun… they’re gaseous, highly magnetic regions that move across the Sun’s surface.Sunspot cycles are at their height every eleven years, and...
It is known that sunspots were observed in ancient times in China. But these data were unknown in Middle Europe in the Middle Ages. Galileo Galilei, who saw sunspots in 1610, gave no scientific report on his observations. The first scientific report in book form on sunspots was published by...
it's not surprising thAt sunspots(太阳黑子)wErE oBsErvED By AnCiEnt AstronomErs (天文学家).thE lArgEst soupspoon thE sun CAn BE sEEn without A tElEsCopE.it wAs not until thE invEntion oF thE tElEsCopE(望远镜)in thE EArly 17th.CEntury,howEvEr,thAt systEmAtiC stuDiEs oF sunspots CoulD BE ...
Recent Examples on the Web Despite only observing some 59 sunspots during this time—compared to between 40,000 to 50,000 sunspots over a similar time span in our current age—astronomers were nonetheless able to determine that sunspots seemed to occur in 11-year cycles. Jennifer Ouellette, Ars...
Sunspots monitoring indicates that the Observatory has observed at least 6 groups of sunspots every day during the first 10 days of 2013. On one occasion, 18 sunspots groups were observed in one day, among which 56 sunspots gathered in the biggest group. And a large number of sunspots groups...
We analyze the spectra of two sunspots of July 8, 2015 and September 5, 2021 which were observed with the ATsU-5 solar telescope of the Main Astronomical O... VG Lozitsky,SM Osipov,MI Stodilka - 《Journal of Physical Studies》 被引量: 0发表: 2022年 加载更多来源...
The magnetic configuration of a sunspot is assumed to be close to the observed one and similar to the magnetic field of a round solenoid of the appropriate size. The transverse (horizontal) and longitudinal (vertical) equilibria of a sunspot were calculated based on the thermodynamic approach and...
available in a later section as comma-separated values. The first value is the year, followed by forcing values (in W.m-2) for CO2, CH4, N2O, CFC-12, CFC-11, the 15-minor halogenated gases, and total forcing, respectively: 1979: 1.027, 0.419, 0.104, 0.092, 0.039, 0.031, 1.712 ...
were the first they had seen in years. However, most of Maunder’s fellow astronomers blamed the lack of sunspots on haphazard and sporadic observations of theSunby 17th- and 18th-century astronomers. In 1976 American astronomerJohn Allen Eddy used extensive historical data to show that 17th- ...