Home » News & Blogs » 09/28/2020 – Ephemeris – A new sunspot cycle has started
Bookmark and Share
Bob Moler's Ephemeris Blog

09/28/2020 – Ephemeris – A new sunspot cycle has started

28 Sep 2020, 04:01 UTC
09/28/2020 – Ephemeris – A new sunspot cycle has started
(200 words excerpt, click title or image to see full post)

This is Bob Moler with Ephemeris for Monday, September 28th. Today the Sun will be up for 11 hours and 50 minutes, setting at 7:27, and it will rise tomorrow at 7:38. The Moon, 3 days before full, will set at 5:06 tomorrow morning.
Word has come down from NOAA, the National Oceanic and Atmospheric Administration that the new solar or sunspot cycle has definitely started as of last December. The length of a sunspot cycle is about 11 years and may vary in length from one cycle to the next. The peak in sunspot numbers isn’t expected until 2025. The intensity of the cycle, that is numbers of sunspots around peak are expected to be about the same as the last cycle, about 150 observed daily. Each cycle is different and not really wholly predictable. Fewer spots means fewer solar flares and coronal mass ejections and less worry for satellite owners and power companies, and fewer displays of the northern lights for us.*
The event times given are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
Addendum
* I didn’t have time to add that we will have more cosmic rays penetrate the ...

Latest Vodcast

Latest Podcast

Advertise PTTU

NASA Picture of the Day

Astronomy Picture of the Day

astronomy_pod