From the rising of the sun unto the going down of the same
the LORD'S name is to be praised.
Psalm 113:3
"Like other main-sequence stars, the Sun possesses a powerful magnetic field that generates dark sunspots, bright solar flares, and other visible features.
These magnetic imprints vary over time and temporarily affect the variability of the star’s light output, causing the Sun to go through an 11-year cycle of higher and lower activity.
“The speed at which a star rotates around its own axis is a crucial variable. A star’s rotation contributes to the creation of its magnetic field in a dynamo process in its interior,” said co-author Dr. Sami Solanki.
Dr. Solanki and colleagues compared the Sun’s brightness variations to observations of 369 solar-type stars with similar masses, temperatures, compositions and rotational properties.
They found that most were more active than the Sun, often being five times more variable than the Sun was over the last 140 years.
“We were very surprised that most of the Sun-like stars are so much more active than the Sun,” said co-author Dr. Alexander Shapiro.
“After all, our star is almost 4.6 billion years old,” said lead author Dr. Timo Reinhold.
“It is conceivable that the Sun has been going through a quiet phase for thousands of years and that we therefore have a distorted picture of our star.”SciNews
--OR-- it's "conceivable" the Sun is NOT 4,600,000,000 years old...just saying....
the LORD'S name is to be praised.
Psalm 113:3
"Like other main-sequence stars, the Sun possesses a powerful magnetic field that generates dark sunspots, bright solar flares, and other visible features.
These magnetic imprints vary over time and temporarily affect the variability of the star’s light output, causing the Sun to go through an 11-year cycle of higher and lower activity.
“The speed at which a star rotates around its own axis is a crucial variable. A star’s rotation contributes to the creation of its magnetic field in a dynamo process in its interior,” said co-author Dr. Sami Solanki.
Dr. Solanki and colleagues compared the Sun’s brightness variations to observations of 369 solar-type stars with similar masses, temperatures, compositions and rotational properties.
They found that most were more active than the Sun, often being five times more variable than the Sun was over the last 140 years.
“We were very surprised that most of the Sun-like stars are so much more active than the Sun,” said co-author Dr. Alexander Shapiro.
“After all, our star is almost 4.6 billion years old,” said lead author Dr. Timo Reinhold.
“It is conceivable that the Sun has been going through a quiet phase for thousands of years and that we therefore have a distorted picture of our star.”SciNews
--OR-- it's "conceivable" the Sun is NOT 4,600,000,000 years old...just saying....
