question

What modulates our Sun? The majority of science work on the principle that the Sun is self modulating and each solar cycle is a product of a random number generator. There are others that suspect the Sun is modulated by the planets with a special emphasis on Uranus & Neptune. Thanks to Carl Smith who has recently left us we have new knowledge that significantly adds to Jose, Landscheidt & Charvàtovà's work.

Geoff Sharp

October 2011 News

 

SDO Sunspot

Two regions counted today with region 1332 failing the threshold but replaced by 1334. A low level finish to the month that has been active on the whole. Month end results available in 24-48 hrs time.

NOAA Region #  
Pixels Darkness
1330 8055 (9416) 73% (74%)
1334 2595
71%
F10.7  flux   DSN Date/Time UTC
124.9 (121.4) 5683 (5293) 2011/10/31 04:00
 

SDO Sunspot

Two regions counted today with region 1324 failing the 24 hour rule and is not counted today or yesterday. Four speck groups not counted today. F10.7 reducing more.

NOAA Region #  
Pixels Darkness
1330 9416 (11219) 74% (75%)
1332 479 (561) 69% (65%)
F10.7  flux   DSN Date/Time UTC
121.4 (132.2) 5293 (7378) 2011/10/30 04:00
 

Three regions counted today with the overall area falling. Region 1333 failing to pass the 24 hour rule and is not counted today or yesterday. Region 1324 making a comeback today but still subject to the 24 hour rule.

SDO Sunspot

 
NOAA Region #  
Pixels Darkness
1324* 643 63%
1330 11219 (11727) 75% (74%)
1332 561 (612) 65% (60%)
F10.7  flux   DSN Date/Time UTC
132.2 (129.9) 6598 (7378) 2011/10/29 04:00
 

Three regions counted today with the overall area falling slightly with new region 1333 but darkness increasing. 1330 now beginning to decline in area. Darkness levels of 1330 and 1333 continuing to show no decline in magnetic strength of individual spots.

SDO Sunspot

 
NOAA Region #  
Pixels Darkness
1330 11727 (13145) 74% (71%)
1332 612 (662) 60% (57%)
1333* 1135 73%
F10.7  flux   DSN Date/Time UTC
129.9 (130.6) 7378 (7110) 2011/10/28 04:00
 

Two regions counted today with the overall area dropping off in conjunction with the F10.7 flux values. 1330 continuing to show strong growth.

SDO Sunspot

 
NOAA Region #  
Pixels Darkness
1330 13145 (12504) 71% (71%)
1332 662 (451) 57% (67%)
F10.7  flux   DSN Date/Time UTC
130.6 (137.3) 7110 (7425) 2011/10/27 04:00
 

Four regions counted today with region 1331 failing the 24 hour rule as expected. Overall area rising a small amount mainly driven by 1330 as the other regions wither. 1324 has almost disappeared. The Australian BOM ENSO report available today.

SDO Sunspot

 
NOAA Region #  
Pixels Darkness
1325 933 (1509) 58% (54%)
1327 1016 (1720) 65% (64%)
1330 12504 (10013) 71% (68%)
1332 451 67%
F10.7  flux   DSN Date/Time UTC
137.3 (143.8) 7425 (7019) 2011/10/26 04:00
 

Five regions counted today although region 1331 will most likely fail the 24 hour rule. Overall area remaining the same.  1330  growing substantially again but other regions on the decline. There is a feeling that the activity levels could be dropping with the F10.7 flux levels starting to drop quickly.

SDO Sunspot

 
NOAA Region #  
Pixels Darkness
1324 1466 (3243) 64% (62%)
1325 1509 (2076) 54% (59%)
1327 1720 (3103) 64% (62%)
1330 10013 (7517) 68% (64%)
1331* 507 57%
F10.7  flux   DSN Date/Time UTC
143.8 (155.5) 7019 (7021) 2011/10/25 04:00
 

Four regions counted today with a small increase in overall area. All regions except 1330 reducing but 1330 growing substantially. The La Nina seems to be building?

SDO Sunspot

 
NOAA Region #  
Pixels Darkness
1324 3243 (3823) 62% (59%)
1325 2076 (2522) 59% (64%)
1327 3103 (3626) 62% (64%)
1330 7517 (4549) 64% (59%)
F10.7  flux   DSN Date/Time UTC
155.5 (162.5) 7021 (6321) 2011/10/24 04:00
 

Four regions counted today with a decrease in overall area. F10.7 flux levels showing some strength. Stereo B is not looking super strong right now.

SDO Sunspot

 
NOAA Region #  
Pixels Darkness
1324 3823 (5759) 59% (57%)
1325 2522 (2454) 64% (57%)
1327 3626 (3927) 64% (63%)
1330 4549 (1485) 59% (62%)
F10.7  flux   DSN Date/Time UTC
162.5 (166.3) 6321 (6596) 2011/10/23 04:00
 

Seven regions counted today with a decrease in overall area. Another new area today but 1329 not passing the 24 hour rule and is not counted in total.

SDO Sunspot

 
NOAA Region #  
Pixels Darkness
1314 1943 (1943) 62% (74%)
1317 470 (797) 52% (55%)
1319 623 (2710) 47% (56%)
1324 5759 (6655) 57% (59%)
1325 2454 (2063) 57% (59%)
1327 3927 (2646) 63% (67%)
New 1485 62%
F10.7  flux   DSN Date/Time UTC
166.3 (157.8) 6596 (7667) 2011/10/22 04:00
 

Seven regions counted today with a small rise in overall area, the solar position has certainly changed in the last 2 months. 2 new regions today along with some new specks. 1316 has now fallen below the threshold. F10.7 flux values are currently offline.

SDO Sunspot

 
NOAA Region #  
Pixels Darkness
1314 1943 (3006) 74% (76%)
1317 797 (1009) 55% (57%)
1319 2710 (4534) 56% (58%)
1324 6655 (5675) 59% (61%)
1325 2063 (1107) 59% (51%)
1327 2646 67%
New(1329)** 552 78%
F10.7  flux   DSN Date/Time UTC
157.8 (146.1) 7667 (7184) 2011/10/21 04:00
 

Six regions counted today with a small reduction in overall area, region 1321 not making the grade but replaced by new region 1325. The areas showing previoulsy in the north on Stereo B now showing their strength.

SDO Sunspot

 
NOAA Region #  
Pixels Darkness
1314 3006 (4070) 76% (75%)
1316 595 (1826) 66% (61%)
1317 1009 (1284) 57% (56%)
1319 4534 (6634) 58% (63%)
1324 5675 (3447) 61% (52%)
1325 1107 51%
F10.7  flux   DSN Date/Time UTC
146.1 (145.7) 7184 (7828) 2011/10/20 04:00
 

Six regions counted today with another reduction in overall area, region 1324 being the exception today showing significant growth. Regions 1324/1319 are around 10 degrees from the solar equator, at this time of the year we are looking down slightly on the solar north pole.

SDO Sunspot

 
NOAA Region #  
Pixels Darkness
1314 4070 (5089) 75% (73%)
1316 1826 (3652) 61% (56%)
1317 1284 (1410) 56% (53%)
1319 6634 (7667) 63% (65%)
1321 527 (647)
73% (74%)
1324 3447 (1020) 52% (54%)
F10.7  flux   DSN Date/Time UTC
145.7 (151.6) 7828 (8860) 2011/10/19 04:00
 

Six regions counted today with a modest reduction in overall area, 1318 that re-emerged yesterday has failed the 24 hour rule and is not counted today or yesterday. Two new regions making the grade which appear at this stage to be of lower strength. The NCEP is forecasting a very deep late La NIna which if correct will add weight to the expected massive northern hemisphere winter.

SDO Sunspot

 
NOAA Region #  
Pixels Darkness
1314 5089 (5802) 73% (74%)
1316 3652 (5469) 56% (59%)
1317 1410 (1521) 53% (60%)
1319 7667 (9592) 65% (65%)
1321 647
74%
1324 1020 54%
F10.7  flux   DSN Date/Time UTC
151.6 (150.0) 8860 (11220) 2011/10/18 04:00
 

Seven regions counted today with a slight increase in overall area, 1319 growing into a large area that is providing most of the boost to area and F10.7 flux. A new region in the north today that may not pass the 24 hour rule.

SDO Sunspot

 
NOAA Region #  
Pixels Darkness
1312 824 (1970)
62% (64%)
1314 5802 (6407) 74% (77%)
1316 5469 (6147) 59% (58%)
1317 1521 (1515) 60% (55%)
1319 9592 (6664) 65% (72%)
1322 573 (534) 74% (77%)
New (1318)* 355 79%
F10.7  flux   DSN Date/Time UTC
150.0 (136.9) 11220 (11046) 2011/10/17 04:00
 

Six regions counted today with a slight increase in overall area. 1313 disappearing but a new short lived region 1322 appearing. There seems to be a lull in proceedings?

SDO Sunspot

 
NOAA Region #  
Pixels Darkness
1312 1970 (3333)
64% (74%)
1314 6407 (6758) 77% (74%)
1316 6147 (6573) 58% (62%)
1317 1515 (1469) 55% (64%)
1319 6664 (3216) 72% (65%)
1322 534 77%
F10.7  flux   DSN Date/Time UTC
136.9 (135.4) 11046 (10707) 2011/10/16 04:00
 

Six regions counted today with a decrease in overall area. Region 1318 not making the grade today. Some more activity in the north around the corner going by Stereo B.

SDO Sunspot

 
NOAA Region #  
Pixels Darkness
1312 3333 (4356)
74% (72%)
1313 611 (1113) 55% (52%)
1314 6758 (6635) 74% (75%)
1316 6573 (7179) 62% (62%)
1317 1469 (1207) 64% (66%)
1319 3216 (2703) 65% (69%)
F10.7  flux   DSN Date/Time UTC
135.4 (137.0) 10707 (11375) 2011/10/15 04:00
 

Seven regions counted today with another increase in overall area. More scientific evidence is coming to hand that solar EUV is connected to changes in climate on WUWT today.

SDO Sunspot

 
NOAA Region #  
Pixels Darkness
1312 4356 (4948)
72% (76%)
1313 1113 (1922) 52% (58%)
1314 6635 (6094) 75% (76%)
1316 7179 (5645) 62% (63%)
1317 1207 (789) 66% (67%)
1318 588 (1142) 66% (68%)
1319 2703 (1517) 69% (68%)
F10.7  flux   DSN Date/Time UTC
137.0 (133.5) 11375 (10959) 2011/10/14 04:00
 

Eight regions counted today which could be considered reasonable activity although the majority of sunspot groups are not seen as strong with a mainly unipolar structure. F10.7 flux values are also low for this level of activity along with low levels of EUV recorded. The big question is whether we are experiencing something like a level of activity seen during cycle max or are we part way through the ramp up?

SDO Sunspot

 
NOAA Region #  
Pixels Darkness
1309 385 (746) 66% (59%)
1312 4948 (5809)
76% (79%)
1313 1922 (3030) 58% (57%)
1314 6094 (5745) 76% (75%)
1316 5645 (2288) 63% (67%)
1317 789 (519) 67% (54%)
1318 1142 68%
1319 1517 (390) 68% (74%)
F10.7  flux   DSN Date/Time UTC
133.5 (129.0) 10959 (9252) 2011/10/13 04:00
 

A modest increase in activity today with 3 new areas and 1 area (1315) falling below the threshold. In other news the Australian BOM reports on a strengthening La Nina with a substantial increase in cooler than normal sub surface temperatures. If the area over New Guinea warms some more the La Nina is bound to gain more strength.

SDO Sunspot

 
NOAA Region #  
Pixels Darkness
1309 746 (1164) 59% (62%)
1312 5809 (6132)
79% (75%)
1313 3030 (3598) 57% (66%)
1314 5745 (4500) 75% (73%)
1316 2288 67%
1317 519 54%
New 390 74%
F10.7  flux   DSN Date/Time UTC
129.0 (126.0) 9252 (8321) 2011/10/12 04:00
 

Overall area increasing again today but the counted regions reducing to 5 with 1311 falling below the threshold. There are numerous other speck areas that will be counted by others today. The darkness levels over the past few days has been strong which is expected as we come nearer to cycle max.

SDO Sunspot

 
NOAA Region #  
Pixels Darkness
1309 1164 (1632) 62% (62%)
1312 6132 (6322)
75% (77%)
1313 3598 (2153) 66% (65%)
1314 4500 (2868) 73% (72%)
1315 941 (450) 76 (77%)
F10.7  flux   DSN Date/Time UTC
126.0 (120.7) 8321 (6902) 2011/10/11 04:00
 

Overall area increasing slightly today. 1313 has turned the tables and developed more spots but decreased in area. A new area has formed next to 1312 that is subject to the 24 hour rule. F10.7 flux remaining stable even with the appearance of large unipolar group 1314. 1314 has a large associated plage area which is most likely a remnant of a past region.

SDO Sunspot

 
NOAA Region #  
Pixels Darkness
1309 1632 (1939) 62% (63%)
1311 449 (645)
54% (62%)
1312 6322 (6028)
77% (79%)
1313 2153 (2312) 65% (58%)
1314 2868 (1233) 72% (71%)
New 450 77%
F10.7  flux   DSN Date/Time UTC
120.7 (118.2) 6902 (6017) 2011/10/10 04:00
 

SDO Sunspot

A new area appearing in the north, possibily another unipolar group.
NOAA Region #  
Pixels Darkness
1309 1939 (2265) 63% (64%)
1311 645 (930)
62% (54%)
1312 6028 (5616)
79% (79%)
1313 2312 (2394) 58% (60%)
New 1233 71%
F10.7  flux   DSN Date/Time UTC
118.2 (121.9) 6017 (5475) 2011/10/09 04:00
 

SDO Sunspot

1313 consolidating today with little change in the other groups. F10.7 flux continues to decrease but another large spot is coming.
NOAA Region #  
Pixels Darkness
1309 2265 (2588) 64% (62%)
1311 930 (1174)
54% (59%)
1312 5616 (4729)
79% (79%)
1313 2394 (1744) 60% (55%)
F10.7  flux   DSN Date/Time UTC
121.9 (123.9) 5475 (5270) 2011/10/08 04:00
 

SDO Sunspot

Little change in activity today with 1305 disappearing tomorrow. F10.7 flux reducing to low levels as a result of the relativity low output (sometimes negative) of the prevailing unipolar groups.

NOAA Region #    
Pixels Darkness
1305 752 (2058) 68% (73%)
1309 2588 (2969) 62% (61%)
 

SDO Sunspot

NOAA Region #    
Pixels Darkness
1311 1174 (1620)
59% (56%)
1312 4729 (3537)
79% (79%)
1313 1744 (1162) 55% (59%)
F10.7  flux   DSN Date/Time UTC
123.9 (126.7) 5270 (5458) 2011/10/07 04:00
 

SDO Sunspot

1310 falling below the threshold today but replaced by a new group in the south (1313). Daily region darkness readings over the past few months have been fluctuating by as much as 15%. Ad hoc measurements taken a few days per month (L&P) are not sufficient to measure the true magnetic strength of sunspot groups.

NOAA Region #    
Pixels Darkness
1305 2058 (3087) 73% (68%)
1309 2969 (3097) 61% (56%)
 

SDO Sunspot

NOAA Region #    
Pixels Darkness
1311 1620 (1915)
56% (60%)
1312 3537 (2213)
79% (77%)
1313 1162 59%
F10.7  flux   DSN Date/Time UTC
126.7 (130.4) 5458 (4986) 2011/10/06 04:00
 

SDO Sunspot

1302 which has been the largest region has now rotated off the face. 1306 today falls below the threshold. Yesterdays region 1308 is now 1311 which has grown over the past 24 hours. Unipolar/alpha type structures appear to be ruling.

NOAA Region #    
Pixels Darkness
1305 3087 (4079) 68% (72%)
1309 3097 (2555) 56% (56%)
 

SDO Sunspot 

NOAA Region #    
Pixels Darkness
1311 1915 (926)
60% (78%)
1310 522 (611)
63% (80%)
1312 2213 (830)
77% (73%)
F10.7  flux   DSN Date/Time UTC
130.4 (129.1) 4986 (5248) 2011/10/05 04:00
 

SDO Sunspot

3 new groups today but area (DSN) and F10.7 flux continue the decline. Darkness ratio's look to be increasing putting further pressure on L&P? The new southern regions look weak so far.

NOAA Region #    
Pixels Darkness
1302 1792 (4674) 48% (60%)
1305 4079 (4641) 72% (76%)
1306 626 (639) 63% (59%)
1309 2555 (1743) 56% (61%)
 

SDO Sunspot

NOAA Region #    
Pixels Darkness
1308 926
78%
1310 611
80%
New 830
73%
F10.7  flux   DSN Date/Time UTC
129.1 (131.1) 5248 (5554) 2011/10/04 04:00
 

SDO Sunspot

Another large drop observed in overall area today. The southern hemisphere remains quiet for now.

NOAA Region #    
Pixels Darkness
1302 4674 (8736) 60% (70%)
1305 4641 (6006) 76% (70%)
1306 639 (854) 59% (58%)
1309 1743 (925) 61% (56%)
F10.7  flux   DSN Date/Time UTC
131.1 (137.2) 5554 (8118) 2011/10/03 04:00
 

SDO Sunspot

Overall area taking quite a hit today. Will October follow suit?

NOAA Region #    
Pixels Darkness
1302 8736 (13750) 70% (72%)
1305 6006 (5033) 70% (75%)
1306 854 (807) 58% (63%)
1309 925 56%
F10.7  flux   DSN Date/Time UTC
137.2 (138.5) 8118 (10149) 2011/10/02 04:00
 

SDO Sunspot

Three groups counting today.

NOAA Region #    
Pixels Darkness
1302 13750 (16911) 72% (71%)
1305 5033 (4097) 75% (75%)
1306 807 (798) 63% (60%)
F10.7  flux   DSN Date/Time UTC
138.5 (137.0) 10149 (10952) 2011/10/01 04:00
 

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