During my daily web browsing, I saw this note about today’s solar activity on SpaceWeather.com:
(ALMOST NO) CHANCE OF FLARES:
Two sunspots facing Earth (AR1934 and AR1936) have ‘beta-gamma’ magnetic fields that harbor energy for strong flares. Both sunspots have been quiet for days, however, and they show no signs of an imminent eruption. This has prompted NOAA forecasters to place low odds on flares today: a 25% chance of M-flares and a 1% chance X-flares.
I took the above image today of the sun and annotated it with sunspot numbers for those visible to my camera. Click on the image to enlarge.
This morning, I browsed my usual daily visits on the internet. When I got to the webpage at SpaceWeather.com, I noticed several sunspots were visible on the “Daily Sun” feature in the left sidebar. That made me have the urge to go out and capture an image of the sun over Arizona to see if I could resolve any of the sunspots. There were three distinct spots in my image, which I labeled, as seen on the right. The solar north pole is at about the ten o’clock point in the image I made. I didn’t bother to rotate the solar image to align the pole at the top as I sometimes do. Click on the image to enlarge.
I visited the SOHO Sunspot page to get the designation numbers of the sunspots in the photo, I noticed a link to a new feature called Helioviewer which purported to allow users anywhere make their own custom images and movies. After fooling with the website a bit, I made the video below to document the spots in my image. The motion starts about 24 hours before advancing to how the sun looked today. Solar north is up and the recording was made through a hydrogen alpha (or equivalent) filter. The bright spots are the location of the spots in my image above. See this screenshot from the Helioviewer site for reference.
After seeing the brilliant rainbow colors in the clouds near the sun, I went to get my camera and get some pictures. In this image, it appears that there is an object that resembles a planet or something near the sun. It actually is a phantom image of the overexposed sun, itself, caused by the camera lens optics. It is interesting and pretty, don’t you think? Click on the image to enlarge.
This three-panel slideshow contains amateur photographs of some of the things we have seen in the sky over the last few days. The first and second panels show “sun dogs” and the last panel shows a circumhelical arc, all of which are rainbow-colored patches of refracted sunlight through ice crystals high in the Earth’s atmosphere. I used my hand to block out the direct sunlight in the last panel.
I read about this sunspot on SpaceWeather.com today. Seeing the article prompted me to get out the tripod and solar filter out and try to get a picture of my own. In the enlarged version of this image, you can see that I managed to capture the structure of this unusual-looking sunspot (inset). Click on the image to enlarge.
Around the world, amateur astronomers are snapping pictures of behemoth sunspot AR1734 as it crosses the solar disk. In Buffalo, New York, photographer Alan Friedman noticed something when he rotated his picture 90 degrees. “Sunspot 1734 has a definite owlish look!” “But who gives a hoot,” he continued, “this grand active region looks fantastic from every perspective.”
The owl could be poised to explode. Sunspot AR1734 has a ‘beta-gamma’ magnetic field that harbors energy for M-class solar flares, almost-certainly Earth-directed because the sunspot is facing our planet. NOAA forecasters estimate a 45% chance of M-flares on May 6th.
The sun, Venus, Mars and Uranus are all gathered in the sky in tight formation. Unfortunately, without the aid of the scientific instrumentation on the Solar and Heliospheric Observatory (SOHO), nobody can observe the event because of the sun’s glare. The animation below shows the event with a solar shield in place as seen by SOHO. Refer to the link below the animation to identify the planets. (Hint: Uranus is pretty hard to see in the noise and clutter in the animation.)
DAYLIGHT ALIGNMENT OF PLANETS: Venus, Mars and Uranus are gathering for a remarkable alignment. But don’t bother looking for the conjunction; it is happening in the daylight sky within a few degrees of the glaring sun. Using an opaque disk to block the glare, coronagraphs onboard the Solar and Heliospheric Observatory (SOHO) are able to track the planets.
Venus and Uranus will cross paths within 1.5 degrees of the sun on March 27-28. Mars and Venus have their own very close encounter on April 6-7. Mars will be so close to the sun throughout the month of April that it will limit NASA’s contact with the Mars rovers and orbiters.
Here is more evidence that variations of the sun are responsible for, not only Earth’s climate, but solar “weather” as well. This is ten hours of solar activity compressed into a little over four minutes. You can mute the weird music in the usual YouTube® manner.
