Inizio Registrati Login

Elenco album Ultimi arrivi Ultimi commenti Più viste Più votate Preferiti Cerca

Inizio > SOLAR SYSTEM > The Sun: just a star, like many others...
Ritorna alla pagina delle miniature FILE 69/143 Torna all'inizio Guarda foto precedente Guarda foto successiva Salta alla fine
Active Region 1002
Caption NASA:"Why has the Sun been so quiet recently? No one is sure. Our Sun has shown few active regions -- that house even fewer associated sunspots -- for over a year now, and such a period of relative calm is quite unusual. 
What is well known is that our Sun is in a transitional period between solar cycles called a Solar Minimum, where solar activity has historically been reduced. 
The stark lack of surface tumult is unusual even during a Solar Minimum, however, and activity this low has not been seen for many decades. A few days ago, however, a "Bona-Fide Active Region! -- complete with Sunspots --appeared and continues to rotate across the Sun's face. Visible above, this region, dubbed "Active Region 1002" (AR 1002), was imaged in ultraviolet light yesterday by the SOHO Spacecraft, which co-orbits the Sun near the Earth. 
Besides the tranquility on the Sun's surface, recent data from the Ulysses Spacecraft, across the Solar System, indicate that the intensity of the Solar Wind blowing out from the Sun is at a 50 year low. Predictions hold, however, that our Sun will show more and more active regions containing more and more Sunspots and Flares until Solar Maximum occurs in about 4 years from now (such as in the year 2012)".
Parole chiave: The Sun from Space - Sunspot

Active Region 1002

Caption NASA:"Why has the Sun been so quiet recently? No one is sure. Our Sun has shown few active regions -- that house even fewer associated sunspots -- for over a year now, and such a period of relative calm is quite unusual.
What is well known is that our Sun is in a transitional period between solar cycles called a Solar Minimum, where solar activity has historically been reduced.
The stark lack of surface tumult is unusual even during a Solar Minimum, however, and activity this low has not been seen for many decades. A few days ago, however, a "Bona-Fide Active Region! -- complete with Sunspots --appeared and continues to rotate across the Sun's face. Visible above, this region, dubbed "Active Region 1002" (AR 1002), was imaged in ultraviolet light yesterday by the SOHO Spacecraft, which co-orbits the Sun near the Earth.
Besides the tranquility on the Sun's surface, recent data from the Ulysses Spacecraft, across the Solar System, indicate that the intensity of the Solar Wind blowing out from the Sun is at a 50 year low. Predictions hold, however, that our Sun will show more and more active regions containing more and more Sunspots and Flares until Solar Maximum occurs in about 4 years from now (such as in the year 2012)".

Sunjet.jpg Sunrise from Space.jpg Sunspot-1002.jpg Sunspot-10982.jpg Sunspot-reversed-0.jpg
Informazioni sul file
Nome del file:Sunspot-1002.jpg
Nome album:MareKromium / The Sun: just a star, like many others...
Valutazione (5 voti):55555(Mostra dettagli)
Parole chiave:The / Sun / from / Space / - / Sunspot
Copyright:SOHO Consortium, EIT, ESA, NASA
Dimensione del file:624 KiB
Data di inserimento:Set 25, 2008
Dimensioni:1024 x 1024 pixels
Visualizzato:56 volte
URL:https://www.lunexit.it/gallery/displayimage.php?pid=21992
Preferiti:Aggiungi ai preferiti
 
 

Powered by Coppermine Photo Gallery