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astronomy.stackexchange.com/questions/4

While sunspots have a temperature of about 6300 °F (3482.2 °C), the surface of the sun which surrounds it has a temperature of 10,000 °F (5537.8 °C). From this NASA resource: Sunspots are actually regions of the solar surface where the magnetic field of the Sun becomes concentrated over 1000-fold. Scientists do not yet know how this happens.

www.reference.com/science/sunspots-appear-dark-eb28ad4e8fe19676

Why Do Sunspots Appear Dark? Sunspots are dark because they are much cooler than the surrounding portions of the sun, according to Cool Cosmos, a joint project by the National Aeronautic and Space Administration’s Jet Propulsion Laboratory and California Institute of Technology’s Infrared Processing and Analyses Center.

www.quora.com/Why-do-sunspots-appear-dark

Ok, both of the other answers so far are wrong. While there is still ongoing research into how sunspots form we know it has to do with the sun's magnetic field. They appear dark because the area around them is brighter than they are because sunspots have a lower temperature.

thistudy.com/index.php?topic=1172618.0

Why do sunspots appear dark in pictures of the Sun? A) They are too cold to emit any visible light. B) They are holes in the solar surface through which we can see through to deeper, darker layers of the Sun. C) They are extremely hot and emit all their radiation as X-rays rather than visible light. D) They actually are fairly bright, but appear dark against the even brighter background of the ...

image.gsfc.nasa.gov/poetry/venus/q142.html

Why are sunspots dark? ... The reason a sunspot appears dark is that the gas inside the spot where the magnetic field is strongest is only emitting about 1/4 as much light as from the rest of the solar surface. If you were to rip a sunspot out from the solar surface and put it in the night sky, it would appear as a bright, orange gas, not a ...

brainly.com/question/11912914

They are less brighter because of the lesser amount of heat in them. In fact, sunspots are identified as areas that don't subject to heat very much, and are shown as dark spots because it's not hot enough to glow the yellowish orange color we usually see

en.wikipedia.org/wiki/Sunspot

Sunspots are temporary phenomena on the Sun's photosphere that appear as spots darker than the surrounding areas. They are regions of reduced surface temperature caused by concentrations of magnetic field flux that inhibit convection.Sunspots usually appear in pairs of opposite magnetic polarity. Their number varies according to the approximately 11-year solar cycle.

answers.yahoo.com/question/index?qid=20090510083909AAjU75Y

Sunspots look dark because they're 3,000 degrees Fahrenheit cooler than the surrounding photosphere. They are in fact much hotter than the arc generated by an electric arc-welder and a large sunspot by itself in the sky would outshine the full moon.

quizlet.com/11904059/chapter-14-astronomy-flashcards

Start studying Chapter 14 Astronomy Flashcards. Learn vocabulary, terms, and more with flashcards, games, and other study tools. ... why do sunspots appear dark? ... Why are sunspots cooler than the rest of the sun? because there is a storm going on in the sunspots that causes them to cool? why does nuclear fusion only occur near the suns core?

quizlet.com/29843336/astronomy-homework-sun-and-stars-flash-cards

Sunspots are dark regions in the photosphere. They are typically about 10,000 km across (about the size of the Earth). They appear dark because they are cooler than the surrounding gases. They are regions where the suns magnetic field is concentrated in leaving and entering the photosphere. Sunspots come in pairs.