No sunspots |
No sunspots |
Dec 29 2007, 09:08 PM
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#1
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Senior Member Group: Members Posts: 1887 Joined: 20-November 04 From: Iowa Member No.: 110 |
Something you don't see very often: no sunspots
http://umbra.nascom.nasa.gov/images/latest_mdi_igram.gif most recent sunspot was seen on the 19th http://www.nwra-az.com/spawx/comp.html |
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Dec 29 2007, 11:04 PM
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#2
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Merciless Robot Group: Admin Posts: 8789 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
Well, the last solar max was one helluva max (double-peaked, in fact), so perhaps this solar min will be of equal magnitude. Happy news is that aircraft & maritime navigation systems--specifically, GPS & LORAN-C, to say nothing of HF radio comms-- are lovin' it!
-------------------- A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
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Dec 29 2007, 11:24 PM
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#3
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Member Group: Members Posts: 688 Joined: 20-April 05 From: Sweden Member No.: 273 |
It does seem as if the sun has a slight hiccup just now:
http://lasp.colorado.edu/sorce/total_solar...nth_640x480.png |
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Jan 8 2008, 12:19 PM
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#4
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Junior Member Group: Members Posts: 40 Joined: 24-January 06 From: USA Member No.: 659 |
There were many days of no sunspots in Nov. & Dec. especially; minimum is such a drag. Spaceweather.com formerly kept track of how many days without 'spots...and then quit giving notice because it'd been so long. That web site gives daily 'spot count, even if it's zero.
But now we're "over the hump" and Cycle #24 has begun (as per other thread in this folder). |
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Aug 23 2009, 11:02 AM
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#5
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The Poet Dude Group: Moderator Posts: 5551 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60 |
No sunspots, but a very enjoyable and succesful "Sunwatch" here in Kendal yesterday...
http://cumbriansky.wordpress.com/2009/08/2...watch-a-success -------------------- |
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Oct 2 2009, 12:24 PM
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#6
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Newbie Group: Members Posts: 5 Joined: 7-October 08 From: Austria Member No.: 4437 |
Hi!
It seems as the new cycle has just began. If you have a look at this image from Wikipedia you will see that it is a bit late. -------------------- |
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Oct 2 2009, 03:45 PM
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#7
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Senior Member Group: Members Posts: 2492 Joined: 15-January 05 From: center Italy Member No.: 150 |
Hofi, I think the updated image you should link is this one, really showing hints of the new solar cycle:
http://solarscience.msfc.nasa.gov/images/bfly.gif Indeed, it seems we are returning to less strong activity pattern we had about 1 century ago... -------------------- I always think before posting! - Marco -
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Oct 5 2009, 08:43 PM
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#8
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Member Group: Members Posts: 214 Joined: 30-December 05 Member No.: 628 |
Dilo, maybe the astronomers of today can see more of the smaller spots than those of 100+ years ago?
I know the Wikipedia chart is based on the area covered, not the number of spots, but surely there were a lot more unobserved spots back then, and this must account for some of that (until-recently) steady increase. |
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Guest_PhilCo126_* |
Oct 6 2009, 11:06 AM
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#9
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Guests |
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Oct 14 2009, 01:11 PM
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#10
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Member Group: Members Posts: 258 Joined: 22-December 06 Member No.: 1503 |
13 consecutive days without sunspots.
Despite what most thought just a few months ago, apparently the sun has not hit solar minimum yet. This year 79% of the days were without sunspots; last year only 73% of days were with a blank sun. |
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Guest_PhilCo126_* |
Jan 15 2010, 10:56 AM
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#11
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Guests |
Indeed, the Sun experienced a special period, but it allowed NASA researchers to show a timely link between the Sun and the climate of Earth's thermosphere, the region above 100 km (roughly 60 miles), an essential step in making accurate predictions of climate change in the high atmosphere. Dramatic cooling in Earth’s upper atmosphere correlates with the declining phase of the current solar cycle.
Results obtained through TIMED mission. (Thermosphere-Ionosphere-Mesosphere Energetics and Dynamics) Meanwhile, Sunspot 1040 is a sprawling sunspot group. http://solarcycle24.com/index2.htm http://www.n3kl.org/sun/index.html |
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Jun 16 2011, 12:15 PM
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#12
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Member Group: Members Posts: 198 Joined: 2-March 05 From: Richmond, VA USA Member No.: 181 |
I struggled with resurrecting a dormant thread, but eventually thought that the this the comment is germane and timely.
Interesting S&T article regarding the current and upcoming solar cycles: http://www.skyandtelescope.com/news/123844859.html -- Pertinax |
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Mar 8 2013, 08:22 PM
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#13
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Member Group: Members Posts: 723 Joined: 13-June 04 Member No.: 82 |
I know that this might be considered thread necromancy, but this article is interesting.
QUOTE Eerily Blank Sun
Something unexpected is happening on the Sun. 2013 was supposed to be the year of "solar maximum," the peak of the 11-year sunspot cycle. Yet 2013 has arrived and solar activity is relatively low. Sunspot numbers are well below their values from 2011, and strong solar flares have been infrequent. The image above shows the Earth-facing surface of the Sun on February 28, 2013, as observed by the Helioseismic and Magnetic Imager (HMI) on NASA's Solar Dynamics Observatory. HMI observes the solar disk at 6173 Ångstroms, a wavelength designed to study surface oscillations and the magnetic field. HMI observed just a few small sunspots on an otherwise clean face, which is usually riddled with many spots during peak solar activity. |
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Aug 18 2017, 10:13 AM
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#14
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Newbie Group: Members Posts: 3 Joined: 20-July 17 Member No.: 8210 |
Hi Alan,
This link (http://www.moscow-hotels.org/en/nwra-az.html) is not working at my end. |
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Aug 18 2017, 11:36 AM
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#15
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Senior Member Group: Moderator Posts: 2262 Joined: 9-February 04 From: Melbourne - Oz Member No.: 16 |
The post you are talking about is nearly 10 years old! It's not too surprising that some links are broken and now redirect to something else entirely.
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