sunspot

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Related to sunspot: Sunspot cycle

sun·spot

(sŭn′spŏt′)

Any of the relatively cool dark spots appearing periodically in groups on the surface of the sun that are associated with strong magnetic fields.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

sunspot

(ˈsʌnˌspɒt)

1. (Astronomy) any of the dark cool patches, with a diameter of up to several thousand kilometres, that appear on the surface of the sun and last about a week. They occur in approximately 11-year cycles and possess a strong magnetic field

2. informal a sunny holiday resort

3. (Pathology) Austral a small cancerous spot produced by overexposure to the sun

ˈsunˌspotted adj

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

sun•spot

(ˈsʌnˌspɒt)

n.

one of the relatively dark patches that appear periodically on the surface of the sun and affect terrestrial magnetism and certain other terrestrial phenomena.

[1805–15]

sun·spot

(sŭn′spŏt′)

Any of the relatively cool dark spots that appear in groups on the surface of the sun. Sunspots are associated with strong magnetic fields.

The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

sunspot

One of many relatively cool dark spots that appear periodically on the surface of the Sun.

ThesaurusAntonymsRelated WordsSynonymsLegend:

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Noun

sunspot - a cooler darker spot appearing periodically on the sun's photosphere; associated with a strong magnetic field

macula

maculation, patch, speckle, dapple, fleck, spot - a small contrasting part of something; "a bald spot"; "a leopard's spots"; "a patch of clouds"; "patches of thin ice"; "a fleck of red"

Translations

macchia solare

sunspot

[ˈsʌnspɒt] N

1. (= resort) centro turístico muy soleado

2. (Astron) → mancha f solar

Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

sunspot

[ˈsʌnspɒt] n (on the sun's surface) → tache f solaire

Collins English/French Electronic Resource. © HarperCollins Publishers 2005

sunspot

[ˈsʌnˌspɒt] n (Astron) → macchia solare

Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995

sunspot

n. mancha de sol.

English-Spanish Medical Dictionary © Farlex 2012

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References in classic literature ?

"Come, cheer up, old man; there's no use in losing your grip and going back to this child's play merely because this big sunspot is drifting across your shiny new disk.

View in context

Silbergleit, "On the statistics of maximum sunspot numbers," Journal of Atmospheric and Solar-Terrestrial Physics, vol.

Probable value for the next sunspot minimum

AR1817 S20[degrees]/238[degrees] appeared as a small collection of pores trailing sunspot groups AR1814 and AR1816 on Aug 10.

Solar section

Beyond metallic hydrogen itself, dense hydrogen could play an important role in the Sun, since the photosphere appears to be less metallic in nature than sunspots [5].

Magnetic fields and directional spectral emissivity in sunspots and faculae: complimentary evidence of metallic behavior on the surface of the sun

The sunspot known as region 1476 will be in direct alignment with Earth in a few days, increasing the likelihood of geomagnetic storms, the National Weather Service's Space Weather Prediction Centre said.

Solar flares from massive sunspot headed to Earth

In order to recognize the contributions of AAVSO Solar Section contributors, the AAVSO Solar Observer Awards (sunspots only) were initiated at the 1999 Annual Meeting.

Jannie Smit receives a special award from the AAVSO

Through a telescope, though, the Sun's face turns out to be blemished, covered with sunspots. Most amazing of all, these sunspots alter from one day to the next, sometime dramatically so.

Observing the dynamic sun: telescopes show that our nearest star changes rapidly and dramatically

Around 2020, sunspots may disappear for years, maybe decades.

Snoozing sun: Sunspots may disappear for years

"The fact that they match up is a powerful indicator that the sunspot cycle may be going into hibernation."

FREEZY DOES IT.. You'll have no choice as experts predict 50 YEARS of icy winters

I am not in any way an expert on this subject but I know a bit about sunspots.

Consider sunspots; LETTERS to the EDITOR

Sunspots are storms on the sun's surface that are marked by intense magnetic activity and play host to solar flares and hot gassy ejections from the sun's corona.

Dear EarthTalk: don't some scientists point to sunspots and solar wind as having more impact on climate change than human industrial activity?

In fact, we were hard pressed to measure much of a temperature rise in the SUNSpot after two minutes of operation.

LED landing lights: better than expected; LEDs aren't as bright as HIDs or conventional incandescents, but they're durable and require minimal power

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