A large “blemish” can be seen on the lower right part of the upper photo, but not on the lower photo taken a day later. Don’t you wish face cream worked like that? Well, maybe not; this “blemish” is over 100,000 miles long, weighs on the order of billions of tons, and was explosively ejectedContinue reading “Now You See It, Now You Don’t”
Tag Archives: Sun
Active Sun
The Sun may seem like a bright, featureless blazing ball in the sky, but in specially filtered telescopes it shows an other-worldly host of huge features. Spots larger than Earth can be seen next to bright “plages” that reveal the magnetic fields that cause the spots to form. The brightest plages are massive magnetic explosionsContinue reading “Active Sun”
In Less Than a Week
***NERD ALERT!*** On November 30, 2022, it appeared that the Sun would be totally without spots for only the second time this year, since the only active region with spots was rapidly fading from view. The next day, however, two new spots appeared and in the following five days the sunspots went from nearly zeroContinue reading “In Less Than a Week”
Solar Spectacles
I observe the Sun through specially designed solar telescopes on a nearly daily basis. This is the first time that I felt like the Sun was looking back at me. Filaments of hydrogen held aloft by powerful magnetic fields created this illusion of “Sun Glasses.” #sunglasses #sun #glasses #spectacles
Eclipse Epilogue
How amazing that we live in a time when the Sun and Moon appear to be the same size in the sky. In the past the Moon was much closer to Earth and early blocked the whole of the Sun. In the future the Moon will be much farther away and its passage in frontContinue reading “Eclipse Epilogue”
Moon Shadow
Has it really been five years since the speeding shadow of the moon swept across the US to the delight of millions who got to see it? We went to the Evergreen Aviation Museum at McMinnville, Oregon, with family members to observe it and were treated to a true solar system spectacle. The images onContinue reading “Moon Shadow”
Filament, Then Prom, Then Gone
Powerful magnetic fields sometimes levitate billions of tons of material above the surface of the Sun which is known as a filament. When solar rotation moves it to the limb of the Sun, it is called a prominence, or prom for short, and reveals how high it is. The whole prominence/filament is over 100,000 milesContinue reading “Filament, Then Prom, Then Gone”
A Sign of a Late Easter
Easter will be later this year than usual, and the photo holds a clue as to why. This setting full moon occurred two and a half days ago. Today is the equinox and also happens to be Sunday. If the full moon had waited three days to occur tomorrow, Easter would have been on MarchContinue reading “A Sign of a Late Easter”
Sunset in Light from Hydrogen
The Sun illuminates the Earth in a full spectrum of light during the day, but at sunset much of the ordinary light is filtered out by the Earth’s atmosphere. This leaves mostly the red wavelength of light which is produced by hydrogen from the Sun. Beautiful sunsets are created by the hydrogen light painting cloudsContinue reading “Sunset in Light from Hydrogen”
Point of View
On a cosmic scale Earth is next nothing, on a human scale it is everything. WARNING: Photo was taken with a telescope designed for solar observation with a safe solar filter in front of the main lens to protect against the intense solar light. Never look at the Sun directly without approved eye protection, andContinue reading “Point of View”