quiet Sun


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quiet Sun

The term applied to the Sun around the minimum of the sunspot cycle, when the absence of active regions allows relatively ‘quiet’ conditions to prevail. The Sun is not then free of all disturbance but there are few (if any) concentrations of intense magnetic flux to produce significant departures from a uniform distribution of radiative flux across the disk. Compare active Sun.

quiet sun

[′kwī·ət ′sən]
(astrophysics)
The sun when it is free from unusual radio wave or thermal radiation such as that associated with sunspots.
References in periodicals archive ?
Darker regions, called coronal holes, are regions of the quiet Sun whose magnetic field lines are dragged out to the interplanetary space due to the solar wind (only one foot of the field line is rooted in the solar surface).
There's also a quiet sun terrace, where you can plonk yourselves down on one of the beanbag beds; the perfect place to wind down after a day of sightseeing.
During its 15-minute flight from White Sands Missile Range in New Mexico, the Focusing Optics X-ray Imager-3, or FOXSI-3, will search for tiny releases of energy in the active and quiet sun.
Stuff like Arzachel, Quiet Sun, Curved Air, Matching Mole, King Crimson, Kevin Ayers etc.
NASA's recently launched Van Allen Probes, formerly known as the Radiation Belt Space Probes (December issue, page 12), have detected dramatic changes in the Van Allen belts around Earth despite a relatively quiet Sun, scientists announced at the American Geophysical Union.
The last few days of February into early March saw a fairly quiet Sun but by March 3, sunspot 1429 had appeared near the NE limb and rotated to near the Sun's central meridian by March 8.
There is ample storage by way of outbuildings and access to lovely quiet sun trap overlooking the Nantlle Valley.
The 55 papers cover the physics of polarization in stellar atmospheres, modeling the polarization, synthesizing and analyzing polarization data, stellar atmosphere diagnostics from polarization studies, solar polarimetry from space, telescopes and instruments for polarization studies from ground-based observatories, new spectral windows and technologies, and the quiet sun.
Phil Manzanera Mainstream/Diamond Head Collectors' editions of the Roxy Music legend's critically acclaimed albums, Mainstream - by his four-piece Quiet Sun - and the first post-Roxy solo album Diamond Sun feature photos, memorabilia and demo tracks.
In between the Roxy dates, Phil will be releasing collector editions of two of his criticallyacclaimed albums - Mainstream, by his original four-piece band Quiet Sun, and Diamond Head, his first away-from-Roxy solo album - on October 31.