Sunspot numbers slide again in June

RI numbers only so far – past posts

NOAA/NASA SWO sunspot counts drifting up compared to Belgian SIDC RI count

I have noticed this for a year or so – as cycle 24 progresses – if you look at the difference SWO minus RI the trend is drifting higher.

Illustrating on the chart the Sep 2011 RI of 78 corresponds with the SWO number 106.1. While the Nov 2013 RI of 77.6 finds SWO at [...]

Further reduction in sunspots for April

Current April RI number from Solar Influences Data analysis Center – RWC Belgium – Royal Observatory of Belgium. NOAA NASA SWO sunspot numbers data still to come.

SolarHam – Solar Terrestrial Activity Report – Jan Alvestad – incl current month progress

Sun spot numbers come off February high

The twin peaked shape becoming better defined as cycle 24 proceeds – interesting to compare SWO & RI at different times. Previous solar threads.

Solar Update March 2014 – ten charts by David Archibald

Solar Update March 2014 by David Archibald With Solar Cycle 24 maximum in March 2013 (see the heliospheric current sheet tilt angle in Figure 5 below) and a one year lag between solar activity and neutron count, we have probably seen the minimum neutron count for this cycle. The minimum count is well above the [...]

Sunspots for February 2014 – RI shows a large increase – cycle 24 solar max yet to arrive

NOAA NASA SWO sunspot number way highest for the cycle – Current number from Solar Influences Data analysis Center – RWC Belgium – Royal Observatory of Belgium – for the RI sunspot data. Solarham pages with current data on our sun – Jan Alvestad – incl current month progress.

[...]

Sunspots for November 2013 – RI shows a small reduction from October

SWO numbers updated now. NOAA NASA SWO sunspot numbers data Solar Influences Data analysis Center – Royal Observatory of Belgium – for the RI sunspot data Solarham pages with current data on our sun

Big decline in sun spot numbers for September 2013

Adds to likelihood that the solar max for cycle 24 has passed. SWO data – RI data -

Big pullback in sunspot numbers for June – nice “rabbit ears”

That “second max” peak did not last long. Both SWO and RI indices record a solid pullback. My page a month ago. From here it looks like a slide towards the next solar minimum – NASA/NOAA say in this chart it will not be before ~2020. An earlier minimum would not amaze me.

[...]

RI sunspot numbers just out for May – NASA/NOAA SWO number has been increasing more than Belgian RI count over April May

Confirming the “rabbit ears” shape for Solar Cycle 24. Interesting that the SWO minus RI difference is now 46.8 whereas at the peak of the first “rabbit ear” in Nov 2011 SWO minus RI was only 36.4.