Ham radio news

The ARRL Solar Update

Solar activity reached moderate levels with an M1.5/1N flare on July 8 from Region 4482. There are currently five numbered regions on the visible disk. Region 4482 demonstrated continued growth and developed a delta spot within its trailing spot group. Region 4485 displayed new flux emergence. Regions 4486 and 4487 were newly numbered during the period. Region 4481 was stable and remained an unr...

The ARRL Solar Update

The ARRL Solar Update

Solar activity has remained at low levels, with frequent C-level activity in the SE quadrant of the solar disk. The largest flare of the period was a C3.8 on June 24 from Region 4478, which is the large sunspot that Solar Orbiter had been tracking across the Sun’s far side. While the majority of the flaring activity this period came from 4478, Region 4475 also produced several small C-flares as...

The ARRL Solar Update

Solar activity has been low with only C-class solar flare activity. Region 4465 underwent some decay and only produced a low-levelC-class flare. Region 4469 decayed further and was inactive. Region4470 underwent some growth, but did not increase in magneticcomplexity and was primarily inactive. The largest solar flare of theperiod, a C2.5 on June 17, came from just beyond the west limb withthe l...

The ARRL Solar Update

Solar activity has been at low levels this past week with most of the C-level activity originating from Region 4465, including the largest flare of the week, a C2.6 observed on June 10. There are currently 7 numbered sunspot regions on the disk with Region 4467 decaying to plage.   There was a Type-II radio sweep detected by the Radio Solar Telescope Network (RSTN) on June 10. That radio emissio...

The ARRL Solar Update

Solar activity went from low to high this week. Activity was dominated by Region 4455, which produced frequent C-class flaresalongside three significant flare events: an M9.3/Sf on June 1; aswell as an M7.7/1b and an X1.0/1n on June 3.  There are eight numbered regions on the visible disk. Region 4455remains complex, maintaining its anti-Hale configuration anddisplaying a newly developed delta ...

The ARRL Solar Update

Solar activity has remained at low levels this past week. The largest event of the period was a C3.4 flare originating from Region 4446.    There are nine numbered regions on the visible disk. Region 4452 showed notable growth and new flux emergence. Region 4450 decayed to plage, though unassociated transitory pores were observed to its east and west. Region 4443 decayed into a unipolar spot as ...