Hydrogen Alpha Sun During Eclipse
Copyright: Wang Letian
Eclipse Reflections
by Celestyn M Brozek
Solar Eclipse in Ha
Credit: Chris Hetlage
2012’s Solar Eclipse shown in Hydrogen Alpha
Moon, Venus, & The Sun
“The Moon and Venus displayed very similar phases yesterday (23 May) almost looking like twins, one heading for the Sun, the other having just performed a remarkable transit wich resulted in the annular eclipse 2 days ago.
The Moon (30’) is still 2 arc minutes smaller than the Sun (32’). The sizes of the 3 bodies are correct but of course not their relative positions. Everything is shot in daylight so I have enhanced the contrast for the Moon and Venus.” — Peter Rosén
Amazing Video of Solar Eclipse Shows Sun’s Structure
This time-lapse video of Sunday’s solar eclipse highlights the Sun’s outer layers
About the video: The photographer Cory Poole constructed the video by pasting together 700 photographs taken with a Coronado Solar Max 60 Double Stack telescope. According to Jason Kottke, Poole used a filter that only allows light from hydrogen atoms moving from the 2nd excited state to the 1st excited state. This allows Poole to highlight the chromosphere, the Sun’s lower atmosphere.
Solar Showdown: How Well Do You Know Our Sun?
Many of us take the sun for granted, giving it little thought until it scorches our skin or gets in our eyes. But our star is a fascinating and complex object, a gigantic fusion reactor that gives us life. How much do you know about the sun?
(via ikenbot)
Brilliant Sun Pillar
by Kevin Povenz
Summary: Andrew McFarlane; Jim Foster
The photo above showing a breathtaking Sun pillar was captured at sunset near Jenison, Michigan on April 10, 2012. Sun pillars result from the reflection of sunlight off the bottom surfaces (or less frequently, the top surfaces) of plate-shaped ice crystals composing cirrus clouds.
These crystals must be similarly oriented and slightly tipped with respect to the viewer in order for a pillar to be observed. The crimson shaft piercing the purple sky made this sunset unforgettable.
Monster Sunspot Fires Off Powerful Solar Flares
A huge sunspot that dwarfs the Earth is unleashing a series of powerful solar flares as it moves across the surface of the sun, NASA scientists say.
The sunspot AR 1476 was detected by space telescopes on May 5. The huge sunspot is 60,000 miles (100,000 kilometers) across, so large that when it was first seen in views from NASA’s Solar Dynamics Observatory spacecraft, mission scientists dubbed it a “monster sunspot.”
Earlier this week, space weather scientists predicted the sunspot would erupt with powerful solar flares, and those predictions have since come true. So far, the sunspot has fired off several flares, including a strong solar storm early Thursday (May 10).
“Solar activity has been at high levels for the past 24 hours with multiple M-class solar flares observed,” stated an update Thursday from the Space Weather Prediction Center, a joint service of NOAA and the National Weather Service. Sunspot region AR 1476 was responsible for nearly all of the sun’s storm activity, center officials said.
On Thursday, sunspot AR 1476 unleashed a powerful flare at 12:18 a.m. EDT (0418 GMT) that registered as a class M5.7 eruption. M-class solar flares are medium-strength sun storms that can still unleash powerful blasts of radiation and magnetic solar plasma. So far, the sunspot has not triggered huge explosions from the sun, which scientists call coronal mass ejections.
AR1476 from Paris
05.10.2012
Copyright: VegaStar Carpentier
Sunspot AR1476 from Montsec
Copyright: Eduard Garcia Ribera