Probably
the largest sunspot that we have observed in several years has rotated to the center of the Sun (Nov. 6 - 8, 2011) as viewed by SDO where effects from solar storms could possibly be felt here at Earth.
[Related:
Largest Sunspot in 24 Years Wows Scientists, But Also Mystifies]
The Swedish 1 - m Solar Telescope on La Palma recorded this part of
the largest sunspot in Active Region 10030, on July 15, 2002.
In October, the area known as active region 12192 (the bright patch on the left side of the main image) spawned
the largest sunspot group in 24 years.
A couple of months ago, the sun sported
the largest sunspot we've seen in the last 24 years.
At 5:10 a.m. EDT (0910 GMT), an X-class solar flare — the most powerful sun - storm category — blasted from
a large sunspot on the sun's surface.
Not a cloud crossed the powder blue sky, allowing a spectacular view of a surprisingly
large sunspot group followed by several ruby red prominences during totality.
«What we can observe on the star is that it has
a large sunspot at its north pole.
Our new measurements confirm that there are
large sunspots at the poles.
This ultraviolet image of the sun shows
large sunspot group AR 9169 as the bright area near the horizon.
This large sunspot is accompanied by a good many smaller sunspots as well.
Large sunspot group AR 9169 moved across the sun during September 2000.
One argument is that observation of low sunspot numbers (less than 50) tends to coincide with the winter (December - February) and spring (March - May), while
large sunspot numbers tend to coincide with summer (June - July) and autumn (September - November).
During periods of high solar activity (last several cycles had anomalously
large sunspot numbers), the solar wind deflects more of these high - energy cosmic rays away from Earth, thereby reducing nucleation / cloud cover and increasing albedo.
Not exact matches
In 1859, astronomer Richard Carrington observed strange
sunspots — evidence of the
largest geomagnetic storm in history — later reproduced in a sketch.
The next peak cycle of
sunspot activity is predicted for 2012 - 2014, bringing with it a greater risk of
large geomagnetic storms that can generate powerful rogue currents in transmission lines, potentially damaging or destroying the
large transformers that manage power flow over high - voltage networks.
The magnetic field that creates the
sunspots can also trigger
large, explosive discharges of plasma, causing solar storms to hit the Earth.
On our star, the Sun, the
sunspots are seen in a belt around the equator, but now scientists have observed a
large, distant star where
sunspots are located near the poles.
He first used it to observe the moon and see the shadows cast by its mountains and craters; he went on to catalogue
sunspots; and he discovered the four
largest moons of Jupiter — Io, Europa, Ganymede and Callisto — that are now known as the Galilean moons in his honor.
This object had an almost circular shape, and a light beam came out from its eastern part that crossed the
sunspot to the south of the nucleus, producing a shadow on the penumbra that was lost in the
large mass of faculae surrounding the eastern extreme of the
sunspot.»
Sunspots can be enormous; a single
sunspot can even be
larger than the Earth.
Sunspot region 2673 has now turned away from Earth, but not before unleashing several X-class flares over the past week, one of which is the
largest in over a decade and one of the top 10 since records began.
a 3D map of the tracers of solar activity (
sunspots, filaments, plages, coronal holes, corona, prominences), updated daily
large - scale datasets of
sunspots (1918 — present), plages (from 1907), filaments and prominences (1919 — present) and variety of solar activity indices you can see solar activity from different vantage points, select objects to be displayed and download the data.
This
large field - of - view image of
sunspots in Active Region 10030 was observed on July 15, 2002.
The January 7 flare occurred near the center of the visible solar disk close to a
large group of
sunspots.
The amount of
large auroral displays tends to follow the amount of
sunspots with a lag of a couple of years.
Influenced by the
large number of
sunspots in November of 2011, this work is a collection of «sun spots» or blemishes digitally removed from photographic portraits.
I know this is about
sunspots but wouldn't it make sense that there would be magnetic cycles of a
larger degree that would cause warming and cooling?
The stadium wave resonance idea justifies
larger scaling of
sunspot impact than justified by irradiance fluctuation alone.
True, generally ocean cycles will be a
larger influence, but the connection of solar cycles (specifically through solar irradiance which rises and falls in tandem with
sunspots) to global temps obvious.
I have plotted every region recorded by the Layman's
Sunspot Count from Jan 2010 along with the frequency of
large unipolar groups.
What caused the
large, sparse, and primarily southern hemispheric
sunspots during the Maunder Minimum?
JD, google «Livingston and Penn» and then please try to explain
large, sparse and primarily southern hemispheric
sunspots during the Maunder Minimum.
interesting that the decoupling of
sunspots and had / crut takes place right around the same time that a
large (and by
large, i mean 30 - 40 %) number of ground stations were removed from the dataset... doesn't prove anything, but likely worth a look.
Please explain
large, sparse, and predominantly Southern Hemispheric
sunspots in the Maunder.
Government scientists want to ignore decades - long unique and rare record - setting solar events, eschew counting
sunspots and are more interested in parameterization - gazing than star - gazing, despite the fact that, «During solar maximum,» as anyone can read in wiki, «
large numbers of
sunspots appear and the sun's irradiance output grows.»
Outer loop orbits that reach the greatest distance from the SSB coincide with the
largest solar cycles (
sunspot count) along with inner loop orbits that come closest to the SSB.
This region reflects radio waves with frequencies up to about 35 megahertz; the exact value depends on the peak amount of the electron concentration, typically 106 electrons per cubic centimetre, though with
large variations caused by the
sunspot cycle.
Or, perhaps, if there are cycles of
sunspot cycles, use one of the
larger cycles.
The deltaF now is ten times the size of a
sunspot cycle's deltaF and also several times
larger than the Maunder Minimum negative change (both with measurable temperature effects).
Thus your assertion is moot because regardless of whether
sunspot counts in the more distant past are accurate we know for a fact there was a recent transition of
large magnitude so we will still be able to observe what happens when
sunspot count changes radically.
The Maunder minimum (MM) of greatly reduced solar activity took place in 1645 — 1715, but the exact level of
sunspot activity is uncertain because it is based, to a
large extent, on historical generic statements of the absence of spots on the Sun.
For the Sun, the occasional
sunspot is not important for the evolution of the Sun, while a single rebar can have
large consequences for a bridge.