Viewing archive of Friday, 16 July 2021 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [MDI, AIA, EVE, and/or HMI] consortium.
Sunspot number New regionsBackground fluxMaximum fluxC
35 131 1A7.98C1.782

Sunspot regions

Region 12842

Number of
sunspots
Size Class Magn. Class Spot Location
1 20 -10 HSX N25W00
HMIIF
HMIBC

Region 12843

Number of
sunspots
Size Class Magn. Class Spot Location
3 2 30 30 BXO S17W72
HMIIF
HMIBC

Solar flares on this day

B1.1 B2.0 B2.6 B5.8 B2.3 B2.0 B2.3 B4.0 B5.0 B7.8 B2.6 C1.1 C1.7 B1.7 B2.5 B2.6 B8.0 B3.4 B1.4 B1.7 B2.1

Region 12844

Number of
sunspots
Size Class Magn. Class Spot Location
1 20 AXX S43E59
HMIIF
HMIBC

Solar flares on this day

B4.1 B1.6 B1.2 B1.5

All times in UTC

<< Go to daily overview page

Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future

Anchorage, AK
The strength of the interplanetary magnetic field is moderate (10.12nT), the direction is slightly South (-2.41nT).

Latest news

Support SpaceWeatherLive.com!

A lot of people come to SpaceWeatherLive to follow the Sun's activity or if there is aurora to be seen, but with more traffic comes higher server costs. Consider a donation if you enjoy SpaceWeatherLive so we can keep the website online!

Donate SpaceWeatherLive Pro
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

07:27 UTC - Hemispheric Power Index

The OVATION model predicts the Hemispheric Power Index to reach 50GW at 08:15 UTC


07:15 UTC - Geomagnetic activity

Active geomagnetic conditions (Kp4) Threshold Reached: 07:03 UTC

alert


06:27 UTC - Coronal mass ejection arrival

CME impact detected - Current Solar Wind Speed 644km/sec - IMF: Bt (strength): 15nT & Bz: 0nT (South).

alert


Get instant alerts!

Space weather facts

Last X-flare2025/03/28X1.1
Last M-flare2025/04/22M1.3
Last geomagnetic storm2025/04/21Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
March 2025134.2 -20.4
April 2025121.5 -12.7
Last 30 days114.6 -22.2

This day in history*

Solar flares
12003M4.84
22001M4.48
32001M3.35
42001M3.06
52001M2.7
DstG
12023-213G4
21960-171G3
32012-120G3
41990-106G2
51959-92G1
*since 1994

Social networks