sun spot
Star's dark patch
A sunspot is a temporary dark patch on the sun's surface, caused by magnetic activity that makes that region cooler than surrounding areas.
Sunspots appear in cycles and can affect solar flares and radio communications on Earth.
Solar activity peaks when sunspot numbers are high.
Also spelled as one word: sunspot.
Force zone around magnets
- photosphereStar's light-emitting surface
- solar flareMagnetic eruption from sunspots
- coronaStar's outermost atmosphere
- umbraComplete shadow region
penumbra · solar activity · aurora · geomagnetic storm · solar wind · plasma · prominence
Small pigmented skin spot
- hyperpigmentationLocalized skin darkening condition
- lentigoFlat pigmented skin lesion
- melasmaPatchy facial skin darkening
- pigmentationNatural tissue coloring
blemish · macule · discoloration · mole · patch · photodamage · sunburn · tan line
magnetic field
Force zone around magnets
- photosphereStar's light-emitting surface
- solar flareMagnetic eruption from sunspots
- coronaStar's outermost atmosphere
umbra · penumbra · solar activity · aurora · geomagnetic storm · solar wind · plasma · prominence
freckle
Small pigmented skin spot
- hyperpigmentationLocalized skin darkening condition
- lentigoFlat pigmented skin lesion
- melasmaPatchy facial skin darkening
pigmentation · blemish · macule · discoloration · mole · patch · photodamage · sunburn · tan line
- spotsblot, blotch, dot, fleck, mark
- skin marksbirthmark, freckle, mole, scar, wart
- skin pigmentationmelanin, melanocyte, pigmentation, freckle, mole
- stargazingtelescope, stargazing guides, night sky, stars, constellation