Solar cycle 24 is the most recently completed solar cycle, the 24th since 1755, when extensive recording of solar sunspot activity began. It began in...

Solar cycle 25 is the current solar cycle, the 25th since 1755, when extensive recording of solar sunspot activity began. It began in December 2019 with...

The solar cycle, also known as the solar magnetic activity cycle, sunspot cycle, or Schwabe cycle, is a nearly periodic 11-year change in the Sun's activity...

Solar cycles are nearly periodic 11-year changes in the Sun's activity that are based on the number of sunspots present on the Sun's surface. The first...

Solar cycle 23 was the 23rd solar cycle since 1755, when extensive recording of solar sunspot activity began. The solar cycle lasted 12.3 years, beginning...

Solar flare § Soft X-ray classification). The following table lists the largest flares in this respect since June 1996, the beginning of solar cycle 23...

Solar maximum is the regular period of greatest solar activity during the Sun's 11-year solar cycle. During solar maximum, large numbers of sunspots appear...

Solar cycle 19 was the nineteenth solar cycle since 1755, when extensive recording of solar sunspot activity began. The solar cycle lasted 10.5 years...

orbit. The event occurred at a time of high sunspot activity during solar cycle 24. Had the CME hit the Earth, it is likely that it would have inflicted...

Solar minimum is the regular period of least solar activity in the Sun's 11-year solar cycle. During solar minimum, sunspot and solar flare activity diminishes...

and may have ended with the peak of solar cycle 23 in 2000, as solar cycle 24 is recording, at best, very muted solar activity.[failed verification] Another...

geomagnetic storm components that occurred from 10–13 May 2024 during solar cycle 25. The geomagnetic storm was the most powerful to affect Earth since...

polarity. Their number varies according to the approximately 11-year solar cycle. Individual sunspots or groups of sunspots may last anywhere from a few...

noaa.gov/rt_plots/kp_3d.html https://www.swpc.noaa.gov/products/solar-cycle-progression http://www.n3kl.org/sun/noaa.html Comprehensive radio propagation...

ejections, solar particle events, and other eruptive solar phenomena. The occurrence of solar flares varies with the 11-year solar cycle. Solar flares are...

throughout the year. The diurnal cycle depends mainly on incoming solar radiation. In climatology, the diurnal cycle is one of the most basic forms of...

The Bastille Day solar storm was a powerful solar storm on 14-16 July 2000 during the solar maximum of solar cycle 23. The storm began on the national...

polarity across the equator and alternates polarity between sunspot cycles. The solar magnetic field was first detected in 1908 by George Ellery Hale, when...

geomagnetic storm in recorded history, peaking on 1–2 September 1859 during solar cycle 10. It created strong auroral displays that were reported globally and...

do appear are at high solar latitudes. As the solar cycle progresses toward its maximum, sunspots tend to form closer to the solar equator, a phenomenon...

eventually result in one He nucleus, is called the CNO cycle and generates less than 10% of the total solar energy. This involves carbon atoms which are not...

remain unexplained. Many solar phenomena change periodically over an average interval of about 11 years. This solar cycle affects solar irradiation and influences...

in divine years (years of the gods), each lasting for 360 solar (human) years. Each Yuga Cycle lasts for 4,320,000 years (12,000 divine years) with its...

Irradiance in space is a function of distance from the Sun, the solar cycle, and cross-cycle changes. Irradiance on the Earth's surface additionally depends...

occurred around the solar maximum, a period of greatest solar activity in the Sun's 11-year solar cycle, and it was anticipated that solar prominences would...

Price (2004-10-25). "Parabolic Trough Organic Rankine Cycle Solar Power Plant" (PDF). 2004 DOE Solar Energy Technologies. Denver, Colorado: US Department...

A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby obscuring the view of the Sun from a small part of Earth, totally or partially...

stream of solar wind originating from a coronal hole. The frequency of geomagnetic storms increases and decreases with the sunspot cycle. During solar maximum...

almost perfectly each saros cycle. For an eclipse to occur, either the Moon must be located between the Earth and Sun (for a solar eclipse) or the Earth must...

ejections and solar flares. The number and location of active regions on the solar disk at any given time is dependent on the solar cycle. Newly observed...