Category Archives: Solar and Auroral

Astronomy Alert – X1.4 Solar Flare from Region 1520 HEADING STRAIGHT AT EARTH!!!

Sorry – didn’t mean to scare you!  Settle down and read this.  You’re not going to die!  Really!

We just thought we’d try to shake you up a bit before CNN and the Weather Channel get a crack at you.  Got your attention, didn’t we?

Don’t you wish you’d spent more time studying science while you were in school?  If you did, then scary headlines like that would only make you laugh, like us.  OK sometimes we get mad, but usually we just shake our heads and say: “There they go again trying to scare the pants off the scientifically illiterate working class of the United States!  The bastards!”

Or words to that effect.

All that has happened is this:  the GOES-15 satellite has detected an X 1.4 solar flare from sunspot group 1520, which is pointed almost straight at Earth.

THIS IS NOTHING TO BE FRIGHTENED BY!  It is a relatively common occurrence on the Sun during its 11-year solar cycle.  Solar Maximum periods, one of which we are passing through this year, produce several flares of this size and some many orders of magnitude larger without having major effects on life forms on Earth (beyond exposing people in planes – and astronauts, especially – to the equivalent of several chest X-rays’ worth of… X-radiation.

We watch these things all the time.  It’s no huge deal, really.

HOWEVER – for those of us who enjoy watching the Aurora Borealis, this could be a flare that will produce some nice auroral displays on Earth in about 3 days.  Stay tuned.

Source: SOHO Website:  http://sohowww.nascom.nasa.gov/sunspots/

Source:  NOAA Space Weather Prediction Center http://www.swpc.noaa.gov/rt_plots/xray_1m.html

Product: 20120712events.txt
Created: 2012 Jul 12 2132 UT
Date: 2012 07 12
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
# Please send comments and suggestions to SWPC.Webmaster@noaa.gov
#
# Missing data: ////
# Updated every 30 minutes.
#                            Edited Events for 2012 Jul 12
#
#Event      Begin        Max                End   Obs    Q    Type   Loc/Frq          Particulars                Reg#
#——————————————————————————-

[…]

9900 +      1537        1649              1730  G15    5     XRA      1-8A             X1.4 4.6E-01             1520

Source: NOAA Space Weather Prediction Center at  http://www.swpc.noaa.gov/ftpdir/indices/events/events.txt

And, finally, here’s the full report on today’s solar action, hot off the… Internets – also from NOAA’s “Space Weather Prediction Center:

Prepared jointly by the U.S. Dept. of Commerce, NOAA,
Space Weather Prediction Center and the U.S. Air Force.
Updated 2012 Jul 12 2200 UTC

Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 194 Issued at 2200Z on 12 Jul 2012

IA.  Analysis of Solar Active Regions and Activity from  11/2100Z
to 12/2100Z:  Solar activity was high.  At 12/1649Z, a long-duration
X1/2b flare was observed from Region 1520 (S16W09).  The event was
visible in GONG H-alpha imagery as a bright ribbon flare that
erupted along the region?s long E/W oriented inversion line. 
Associated with this event were Type II (1268 km/s) and Type IV
radio emissions along with an 800 sfu Tenflare.  Limited satellite
imagery indicated a CME was associated with this event.   STEREO
Behind COR2 imagery observed a CME lifting off the west limb, first
visible at 12/1710Z.  Further analysis of this CME is ongoing. 
During the past 24 hours, Region 1520 grew in both area and spot
count and maintained a complex beta-gamma-delta magnetic
configuration.  Region 1521 (S21W21) also grew in area and spot
count and remained a beta-gamma magnetic classification.  New
Regions 1522 (N13W21) and 1523 (S27E31) emerged on the disk as
simple bi-polar spot groups.

IB.  Solar Activity Forecast:  Solar activity is expected to be
moderate with a chance for X-class events for the next three days
(13 - 15 July).

IIA.  Geophysical Activity Summary 11/2100Z to 12/2100Z:
The geomagnetic field was at quiet to active levels with isolated
high latitude major storm intervals from 11/0600 - 1200Z.  ACE solar
data indicated wind velocities decreased steadily through the period
from 500 km/s to near 400 km/s while the Bz component of the
interplanetary magnetic field did not vary much beyond +/- 5 nT. 
The greater than 10 MeV proton flux at geosynchronous orbit exceeded
the 10 pfu event threshold at 12/1835Z.  At the time of this report,
flux levels were at 35 pfu and rising.  The greater than 100 MeV
flux at geosynchronous orbit was enhanced, but below event threshold
levels of 1 pfu. The greater than 2 MeV electron flux at
geosynchronous orbit reached high levels during the period.

IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be at mostly quiet to unsettled levels for day one (13
July).  Unsettled to active levels, with isolated minor storm
intervals, are expected on days two and three (14 - 15 July) as
effects from the 12 July CME are expected to become geoeffective.

III.  Event Probabilities 13 Jul-15 Jul
Class M    80/80/80
Class X    35/35/35
Proton     99/99/50
PCAF       red

IV.  Penticton 10.7 cm Flux
Observed           12 Jul 165
Predicted   13 Jul-15 Jul  165/165/165
90 Day Mean        12 Jul 127

V.  Geomagnetic A Indices
Observed Afr/Ap 11 Jul  010/012
Estimated Afr/Ap 12 Jul  009/011
Predicted Afr/Ap 13 Jul-15 Jul  006/008-015/018-013/015

VI.  Geomagnetic Activity Probabilities 13 Jul-15 Jul
A.  Middle Latitudes
Active                20/40/35
Minor storm           05/15/10
Major-severe storm    01/01/01
B.  High Latitudes
Active                20/10/15
Minor storm           25/30/30
Major-severe storm    25/55/45

Hey, look!  The US Air Force is good for something that doesn’t involve killing people in cold blood from high altitudes!

Dammit!  The folks in Canada and along the Canada-US border have a better than 50% shot at seeing a major-severe Geomagnetic storm the night of July 14-15, while those of us in the lower lower 48 will have a mere 15% shot at a “minor” storm?  We demand a recount!

IWPCHI

 

UPDATE:  We are soooo happy to report that this solar flare lived up to expectations, producing lovely displays of the Aurora Borealis visible from southwest Wisconsin during the early morning hours of July 15th!

We first observed the aurora from a rest area (probably Rest Area 15) on I-90 at about 3:30 AM.  We’d been looking for the aurora all night long, starting at about 11PM on the 14th.  Though there was skyglow around, it couldn’t be determined if it was the aurora or the lights from some distant town.  So, we kept looking periodically, but never seeing anything.

We were looking for some cool motel to crash out at for the night, and had gone too far west for our liking – the country around this part of the world is so beautiful, and here we were driving at night and missing it all!  When we crossed the Mississippi, we decided to head back east to the St. Croix river – not knowing that we were far off course for that, having ended up on 90 instead of 94 when we set about looking for a motel by driving north along the east side of the Mississippi a couple hours back – we think…

Oh, never mind all that.  This isn’t about our navigational skills anyway!  Shut up!

So, having been unable to find a motel, we decided to just head back to the last rest area we’d passed and crash out there for the night.  Pulled in there and grabbed some munchies at the crappy vending machines at about 3:15 AM.  No one there but a couple of semis and a car or two.  Looked for the Aurora, but couldn’t see anything through the bright lights of the rest area’s parking lot. 

Headed back to the truck and prepared to move on down the road to the next exit and then turn around and stop for what was left of the night at the rest area on the westbound side of the highway (in the direction we were headed.  Figured we’d be able to head to our destination first thing in the morning and enjoy the great scenery along the way, then head up to Minn./St. Paul along BEAUTIFUL, LEGENDARY HIGHWAY 61 in the morning.

So, we get in the truck and start her up and get ready to go east to go west… we pass out from under the bright lights of the rest area and onto the ramp that heads back onto the highway when, out of the corner of our eyes…!

Big Green aurora!  About 60% of the horizon from NW to E, with a big bend in it on the W side and beautiful green curtains all along!  Stop the truck!  Get out!  Woo Hoo!  Make noise like an idiot!

It was awesome and the first one we’ve seen since the last solar maximum.  It lasted from about 3:38 to 4:00AM; then it came back again a couple of times until the sun rose.  The last appearance was of a bright white aurora with beams and curtains, and a brief period before that where it was a diffuse white nebulous cloudy thing with distinct “pulses” like it was rapidly turning on and off – never saw that before!

The highest it got was about 70degrees, which means that, as we expected, it would have been barely visible south of Chicago.   Lucky us, we were “forced” to drive from Chicago to Minneapolis that one day!  

A word to the wise traveler: if you’ve never been out to the Great River Road that runs from New Orleans to the source of the Mississippi River, you’re missing one of the great American scenic drives.  The stretch of Highway 61 we drove from French Island, Wisconsin to Red Wing, MN is absolutely gorgeous.  Big, isolated, forested limestone bluffs (they look like Smurfs’ hats at night) line both sides of the river and expose some amazing cross-bedded lime- and sandstone formations.  There’s camping locations all along the west side of the river – including some “bicycle only” campsites for backpackers on 2 wheels – and a great, wide bike path running along the highway, with scenic overlooks all along the river.  Funky little cabins and houses line the very banks of the river in some places, while big, modern mansions stand perched atop some of the limestone bluffs.  At night, the Milky Way is clearly visible from the roadside rest areas.  In the day, beautiful farms using contour farming methods flow across the undulating hills of the region.  It was one of the most spectacular drives we’ve ever taken, and we have been to the enormous Grand Canyon loop that includes Phoenix, Flagstaff, Grand Canyon Village, Meteor Crater and the Petrified Forest National Park.  The Great River Road is on that level of beauty. 

IWPCHI

It was a great night, and we’d never have seen it if we’d actually found a motel to crash out in.  It was a wonderful night and a

Aside

STEREO Selects Gallery We’ve found another very nice astrophysics website we thought we’d share with you – NASA’s STEREO mission website, which provides a far-side view of the Sun for the first time ever (the link is at the top … Continue reading

Aside

How A Supernova Explodes This is one of our all-time favorite scientific articles, from Scientific American (back when it was still a science magazine and hadn’t been turned into a sciency version of “People”): it’s by the late Nobel-Prize-winning physicist … Continue reading

Aside

“In 1769 Benjamin Franklin published an article in the prestigious journal of the Royal Society of London presenting the transit of Venus observations of Messrs. Biddle and Bayley. Some historians credit this account from pre-revolutionary America as the first occasion … Continue reading

Thanks to Everyone who Participated in our Venus Transit 2012 Event in Chicago on June 5th!

The Independent Workers Party would like to thank all the folks who stopped by our event  at Jackson and Canal Sts. in downtown Chicago yesterday to observe the Transit of Venus!  It was fun to meet you and to share this rare celestial even with so many people, many of whom were not aware that they could actually observe it from downtown Chicago, or who were thinking that they would not get the chance to see it due to work schedule conflicts or time constraints.

We were able to put together a number of instruments to safely observe the Venus Transit.  We had a telescope that we intended to bring, but as it was deemed impossible to make it 100% safe for small children, we left it at home.  We constructed 3 “pinhole camera” solar projector boxes, which, unfortunately, proved to be not of much use in observing the transit, as the images projected were too blurry to delineate the disk of Venus.

The weather conditions could not have been better: it was about 72 degrees (F.) and not a cloud in the sky.

Fortunately, we had purchased a couple of 4.5″ x 5.5″ pieces of #14 welders glass, which we duct taped to the cut-in-half tops of some bankers boxes we had lying around.  We just cut out a rectangle from the center of the half-box-top 3/4″ smaller all around than the glass, and duct taped it onto the inside of the box top.  This made a nice shield from the sun for the face and gave a nice big area in which to see the solar disk.

Our observations began at 5:00 PM using both the projector boxes and the welder’s glass.  It was obvious right away that the projector boxes would not work very well, as the image of the sun, even on the 6′ long box we made, was large enough but too blurry.  The welder’s glass, though, gave a nice, crisp image of the Sun… and within a few minutes of the start of the Transit – in commenced at 5:04 PM Chicago time – I (a rather experienced but very amateur astronomer – could barely make out the small semicircular “bite” that had been taken out of the solar disk at about the 1:00 position; others who tried to see it could not.  As the transit proceeded and the entire disk of Venus was surrounded by the solar disk, the planet Venus was clearly visible to nearly everyone who looked through our viewers.  Only a couple of people with apparently very poor eyesight and, thanks to our country’s lack of universal health care, no corrective lenses, were unable to see the black dot on the face of the Sun. Those with good eyesight and those who wore glasses correcting nearsightedness could immediately see the disk of Venus once it was engulfed by the solar disk.

We were somewhat surprised at the large number of people who passed us by, completely ignoring our offer to “See the Transit of Venus!  Next time you’ll get to see it is in 2117”!  Probably 85-95% of the hundreds – perhaps thousands (I wasn’t counting, but it was in the middle of rush hour) of people who passed us either ignored us or, obviously not having heard or understood what we were saying, said “no, thanks” or “not today” – as if those responses made any sense at all.  America is indeed a country where most people are conditioned to ignore their fellow citizens and to avoid making even brief eye contact with strangers.  Americans are, quite simply, afraid of each other. The brutality of the capitalist system of the United States, which pits every working person against their fellows in a savage struggle for survival of the fittest results in the dehumanization of the population.  Even beggars exhibiting the most pitiful and undoubtedly authentic signs of extreme physical and psychological distress are callously ignored and brushed aside by the citizens of the United States with heartless comments like “not today” or “no thanks”!   Americans are afraid to look into the eyes of the homeless because they seem to fear that doing so would cause them to “contract poverty” as if it was a communicable disease.  But it is just this kind of social dislocation and refusal to act together and to take the responsibility to care for our unfortunate brothers and sisters on the streets that sets the stage for our own downfall when we lose our jobs and find ourselves facing homelessness!  As long as we stick with the capitalist economic system we are all at risk of “contracting” the “disease” of poverty!

At times, I I felt as if I could have been standing there at the corner of Jackson and Canal with a bag of nuggets of pure gold, giving them away for free and the vast majority of the people would have just walked right past me without even glancing in my direction.

The redeeming feature of the event was, of course, that 10-15% of genuine human beings who either saw others viewing the sun through the viewers and were curious as to what we were doing or who knew about the Transit of Venus already and jumped at the chance to see it.  They were not ignoring what was going on around them and many heard my spiel and walked on a bit, only to turn around and come back and ask: “Can you see it from here?”  Some had heard about the event but were unable to get to the Adler Planetarium for their big public celebration of the transit, and thus who sadly expected to miss the whole show.

We stayed at Jackson and Canal until about 6:30, when the sun started to go behind the roof of Union Station.  We then had to edge east along the south side of Jackson following the rays of the sun until around 7 by which time we had crossed the Chicago river at Jackson and the sun disappeared behind the rows of office towers.  There were a bunch of people waiting for the CTA bus there who took a peek at the transit just before the sun disappeared – many others just brusquely walked by.  After that, we moved to a location southwest of Union Station on the north side of Clinton, where the sun was clearly visible across a parking lot there.  Here, we met with a handful of curious people who enjoyed a view of this rare event and thanked us for it.

Finally, I had catch a METRA train to make a trip out to the suburbs, so I had to leave.  It was getting close to impossible to find a downtown location with a clear view of the sunset anyway.  I hopped on the train heading to Fox Lake, which was going northwest, which I assumed would give me another chance to do some observations as the Sun would be visible from the left side of the train.  This turned out to be true and I made several observations of the transit while in transit* – and was able to share the view with several of my fellow passengers, while, just as before, the majority either didn’t care to look or were afraid to ask to join us as we observed the event.  Thanks to everyone on the Fox Lake Metra train who observed the transit with me – I believe we are part of a very select group of human beings who ever observed a Transit of Venus from a moving vehicle!  And you were able to see it because you were not afraid to ask the man with the piece of welders glass taped to a box top what he was doing.  Congratulations to you!

I had hoped to continue sharing observations with more people once I arrived at my destination, but by the time I got there, the sun had descended so far in the sky that it was no longer visible above the treeline a block or two away.

Our Transit of Venus event wasn’t entirely utterly altruistic: there was an element of shameless but (I hope) unobtrusive promotion of the Independent Workers Party that took place as part of the event.  I passed out some business cards promoting the IWP to a number of people who stopped long enough to chat a bit or who frankly asked “why are you doing this?”  In this way I was able to meet a bunch of people from Chicago and even some folks from out of state and at least one person from another country who were interested in the Party and said they’d check out the blog; we’ve had another 30 hits on the website since yesterday, so I suppose they did just that!  In fact, since I posted the “Transit of Venus” article on June 5th, our daily hits have more than tripled; so I conclude here by thanking everyone once again for making the Transit of Venus event – our Party’s first public event! – a successful one!

IWPCHI

*joke

PS: If you missed the Transit of Venus and would like to see some amazing videos of the event taken by a couple of NASA’s solar observation satellites, check out these websites:

http://venustransit.gsfc.nasa.gov/  [amazing views of the surface of the Sun as well as the transit];

http://sohowww.nascom.nasa.gov/home.html   [In these videos, Venus passes outside the solar disk due to the fact that this spacecraft’s orbit takes it below the plane of the Earth’s orbit around the Sun, giving it a different view of the event (see article at link below).]

An excellent article on the transit from the SOHO website is here along with an amazing story of a French Astronomer, Jean-Baptiste Chappe d’Autoroche, who risked his life – twice – to obtain accurate observations of the Transit of Venus in the late 1700s is here:

http://sohowww.nascom.nasa.gov/hotshots/2012_05_18/

Aside

Astronomy Alert – Join Us For Free “Transit of Venus” Observations – Jackson and Canal Sts., Union Station, Chicago, IL – Next one is in 2117!   Yes, we keep up on science issues as best we can as well … Continue reading