Earth-facing side of the sun without visible sunspots

Earth-facing side of the sun without visible sunspots

Images taken by Solar Dynamics Observatory (SDO) on July 17, 2014 show no active sunspots on the visible solar disk. To be correct, tiny decaying AR 2113 is still visible, but its size remains so small that the plots and charts didn't registered it. SDO's

Traveling sunspot group AR 1785 (July 3 – 11, 2013)

Traveling sunspot group AR 1785 (July 3 – 11, 2013)

NASA's Solar Dynamics Observatory (SDO) released video of Active Region 1785 – one of the largest sunspot groups this year, traveling across the Earth facing solar disk in period from July 3 – July 11, 2013. AR 1785 is now out of Earth view, moving onto

New emerging sunspots raise chances of flares in the coming days

New emerging sunspots raise chances of flares in the coming days

Solar activity is currently at very low levels. However, a group of new sunspots are emerging over the southeastern limb and the chance of flares is increasing with it. This new group is increasing the solar EUV flux absorbed in the Earth’s

Old Sunspot 1731 erupted with M1.7 solar flare – May 20, 2013

Old Sunspot 1731 erupted with M1.7 solar flare – May 20, 2013

A moderate solar flare peaking at M1.7 was observed off the east limb around >Returning Sunspot 1731 located off the east limb produced moderate M1.7 solar flare at 05:25 UTC on May 20, 2013. Sunspot 1731 will begin to rotate back into view within the next 24

G1 (Minor) Geomagnetic Storm in progress – May 18, 2013

G1 (Minor) Geomagnetic Storm in progress – May 18, 2013

G1 (Minor) Geomagnetic Storm conditions are now occurring due to the arrival of the CME from May 15, 2013. During G1 Geomagnetic Storm, weak power grid fluctuations can occur, minor impact on satellite operations is possible, aurora is commonly

Sunspot 1654 still dominates the visible solar disk

Sunspot 1654 still dominates the visible solar disk

Active Region 1654 has traveled half across the Earth facing side of the Sun and now is squarely facing Earth. On January 13, this huge sunspot reached its maximum size measured as more than 193 000 km (120, 000 miles) wide long or 15 Earth diameters) from end to

Moderate to high solar activity with possible geomagnetic disturbances

Moderate to high solar activity with possible geomagnetic disturbances

Solar activity has been at moderate to high levels for the past 24 hours. AR1652 produced two M-class and 8 C-class solar flares  in the past 24 hours, and it has rapidly evolved to a compact beta-gamma-delta configuration. This active region erupted M1.0 flare

Moderate solar flare reaching M1.7 erupted from AR 1652

Moderate solar flare reaching M1.7 erupted from AR 1652

A second moderate solar flare erupted on January 13, 2013 from AR 1652. M1.7 solar flare peaked at 08:38 UTC. The event started at 08:35, peaked at 08:38 and ended at 08:40 UTC. Type II and IV radio emissions were associated with the event. Type II emissions occur

Active Region 1652 produced M1.0 solar flare

Active Region 1652 produced M1.0 solar flare

Beta-gamma-delta Active Region 1652 generated M1.0 solar flare at 00:50 UTC on January 13, 2013. Considering the position of Sunspot 1652, which is facing Earth, geoeffective CME is possible. Active Region 1652 (Credit: SDO/The Watchers)  There are

Large AR 1654 rotating into direct Earth view, C8 solar flare generated

Large AR 1654 rotating into direct Earth view, C8 solar flare generated

Sunspot 1654 produced a long duration C8.0 solar flare at 17:46 UTC on January 10, 2013. Besides C8 event, solar activity remained at low levels. There are currently 9 numbered sunspots with 1652 and 1654 as the largest active regions. Region 1652 is classified as a