Tuesday, 31 December 2019

Ha Full Disk 30th December 2019

This is my last solar image of the decade; clear skies on monday meant I was able to make the most of the small gaps in the trees to get a chance of seeing the sun.  Cycle 25 active region AR12753 is still visible as a patch of bright plage, but all sunspots have now receded.  A few small prominences and few ephemeral bright points are the only other things visible but as we move into 2020 activity is set to rise.  This image was taken with the Lunt50 etalon on the ED60 f6 scope, double stacked with a Daystar Quark, a Baader solar telecompressor was used along with the PGR camera.

Thursday, 26 December 2019

Christmas 2019 - When Solar Cycle 25 Woke Up

The information from Solen says it all; on Christmas day I was able to observe the 2 active regions visually using a Daystar Quark where they were easily visible.  The chart above shows the magnetic signatures of cycle 25 are getting more prevalent.  Poor weather is forecast for me for the rest of the year so unlikely I will get to image or view until 2020, either way next year should be an exciting time for all things solar!

Tuesday, 24 December 2019

Christmas Sunspots From Cycle 25 - 24th December

Christmas Eve has brought not just one sunspot grouping from cycle 25, but two! We know this from their reversed polarity compared to cycle 24 spots.  There have been a number of small single spots and pores earlier this year, but so far this is the most cycle 25 activity we have seen.  Fingers crossed this is setting up 2020 as being a good year for solar astronomy as more features become visible.

Wednesday, 11 December 2019

Solar Cycle 25 Forecast Update

published: Monday, December 09, 2019 22:30 UTC

The NOAA/NASA co-chaired, international panel to forecast Solar Cycle 25 released their latest forecast for Solar Cycle 25. The forecast consensus: a peak in July, 2025 (+/- 8 months), with a smoothed sunspot number (SSN) of 115. The panel agreed that Cycle 25 will be average in intensity and similar to Cycle 24.

Additionally, the panel concurred that solar minimum between Cycles 24 and 25 will occur in April, 2020 (+/- 6 months). If the solar minimum prediction is correct, this would make Solar Cycle 24 the 7th longest on record (11.4 years).