|
gptkbp:instanceOf
|
Astronomical phenomenon
Solar feature
|
|
gptkbp:affects
|
Solar irradiance
Space weather
|
|
gptkbp:appearDarkerThan
|
Surrounding solar surface
|
|
gptkbp:canBeSeenWith
|
Proper solar filters
|
|
gptkbp:canLast
|
Days to months
|
|
gptkbp:causedBy
|
Magnetic activity
|
|
gptkbp:cycle
|
About 11 years
|
|
gptkbp:diameter
|
Up to 50,000 km
|
|
gptkbp:discoveredBy
|
gptkb:Galileo_Galilei
|
|
gptkbp:firstObserved
|
gptkb:Ancient_China
|
|
gptkbp:firstPhotographed
|
1845
|
|
gptkbp:haveStructure
|
gptkb:Penumbra
gptkb:Umbra
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Sunspots
|
|
gptkbp:influenced
|
Earth's climate
|
|
gptkbp:location
|
gptkb:Photosphere_of_the_Sun
|
|
gptkbp:magneticFieldStrength
|
Up to 0.4 tesla
|
|
gptkbp:namedAfter
|
Dark spots on the Sun
|
|
gptkbp:observedBy
|
gptkb:SOHO_spacecraft
gptkb:SDO_spacecraft
17th century
Solar telescope
|
|
gptkbp:recordedAt
|
gptkb:Wolf_number
|
|
gptkbp:relatedTo
|
gptkb:Solar_flares
Solar cycle
Coronal mass ejections
|
|
gptkbp:studiedBy
|
gptkb:Helioseismology
Solar physicists
|
|
gptkbp:temperature
|
3000–4500 K
|
|
gptkbp:bfsParent
|
gptkb:With_Teeth
|
|
gptkbp:bfsLayer
|
6
|