09/16/2009 by Kevin VE3EN at 12:00
Comment on Message Board
A region that could be a Cycle 24 sunspot is still lurking on the eastern limb. It has been visible for several days now in the STEREO Behind images and should begin to show itself by early next week.
STEREO Behind (Wednesday)
I have finally updated the Spotless days vs. Cycle 23 minimum comparison graph, much to the delight of many Cycle 24 junkies who have emailed me several times about it. Sorry about the 2 month delay.
Spotless Days vs Cycle 23 minimum (Click to Enlarge)
| Days since last "official" sunspot: 14 |
From the Space Weather Prediction Center
Updated 2009 Sep 15 2201 UTC
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 258 Issued at 2200Z on 15 Sep 2009
Analysis of Solar Active Regions and Activity from 14/2100Z to 15/2100Z: Solar activity was very low. No flares were observed. The visible disk was spotless.
Solar Activity Forecast: Solar activity is expected to remain very low.
Geophysical Activity Summary 14/2100Z to 15/2100Z: The geomagnetic field was quiet.
Geophysical Activity Forecast: The geomantic field is expected to be quiet to unsettled, with isolated active periods, for the next two days (16-17 September). This increased activity is expected as a recurrent coronal hole high speed stream becomes geoeffective. The geomagnetic field is expected to return to quiet levels on the third day (18 September).
