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5 days blank, 204 for 2019 73%

Solar flux 68

Thermosphere: 4.42

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neutron count=9.6%=high

tci = 43.7 billion watts

another good drop in tci and neutron count up.

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6 days blank, 205 for 2019 73%

Solar flux 67

Thermosphere: 4.37

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tci=43.6 billion watts, so a slight drop today

neutron count 10.0%= high so neutron count on the up.

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7 days blank, 206 for 2019 73%

Solar flux 68

Thermosphere: 4.35

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8 days blank, 207 for 2019 73%

Solar flux 68

Thermosphere: 4.35

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13 hours ago, Minus 10 said:

solar cycle 25 getting closer

yes almost undoubtedly, BUT it is possible to get opposite polarity SS in any given cycle

 

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Q3 had a 95% spotless rate with 87/92 days spotless. An exceptionally deep quarter. 

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9 days blank,  208 for 2019 73%

Solar flux 69

Thermosphere: 4.37

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10 days blank, 109 for 2019 73%

Solar flux 68

Thermosphere: 4.42

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AURORAS--NO SUNSPOTS REQUIRED: Last night, the sun and Moon combined to produce a beautiful scene in Tromsø, Norway. The sun contributed a gust of solar wind, while the Moon added its almost-full luminosity. Markus Varik photographed the result:

huntersauroras_strip Norway Aurora.jpg

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11 days blank, 210 for 2019 73%

Solar flux 68

Thermosphere: 4.40

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12 days blank, 211 for 2019, 73%

Solar flux 66

Thermosphere: 4.35

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13 days blank, 212 for 2019 73%

Solar flux 67

Thermosphere: 4.41

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14 days blank, 213 for 2019 73%

Solar flux 66

Thermosphere: 4.33

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15 days blank, 214 for 2019, 74%

Solar flux 66

Thermosphere: 4.38

Edited by SteveB

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3 hours ago, SteveB said:

15 days blank, 214 for 2019, 74%

Solar flux 66

Thermosphere: 4.38

In % terms now higher than the last minimum of 73%. We have 74 days left of 2019 so a potential of say 284 which would give us a percentage of 78%. Personally I think a range between 75 and 76% more likely s so an upper limit of 277 spotless days. How this compares to the Dalton minimum is unclear.

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As the Earth approaches perihelion (in January), the adjusted solar flux is now lower than the observed flux. For example, yesterday's final reading of 66.0 has an adjusted value of 65.5sfu. At perihelion, the adjusted figure will be about 2.2sfu lower than the observed.

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FOR NO PARTICULAR REASON, AURORAS AT SEA: Geomagnetic storms and auroras go together. Northern Lights are the telltale glow of Earth's magnetic field vibrating in response to solar wind. So how do we explain this? There was no geomagnetic storm on October 16th when bright auroras appeared off the coast of Tromsø, Norway. Alan Dyer photographed the display from the deck of the ferry ship Trollfjord:

aurorasatsea_strip For no particular reason Norway.jpg

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