SpaceWeatherLive .com
Real-time auroral and solar activity

Sunspot region AR12440

Number of
sunspots		 Size Class Magn. Class Spot Location
2015/10/27 6 40 CSO N20W02
2015/10/28 4 30 DAO N19W16
2015/10/29 4 30 DSO N19W31
2015/10/30 3 30 DAO N20W44
2015/10/31 2 10 BXO N19W57
2015/11/01 1 10 AXX N18W72
C
1

The top 1 solar flares from sunspot region 12440

Start Maximum End
1C1.572015/10/2901:0301:2501:40
Back to top

Latest news

Latest forum messages

Incoming & Unnumbered Active Regions 260Comet C/2026 A1 (MAPS) for the southern hemisphere 58Artemis 2 Live 4AR4409 181Solar Demon not being updated 9
More topics

Support SpaceWeatherLive.com!

A lot of people come to SpaceWeatherLive to follow the Solar activity or if there is a chance to see the aurora, but with more traffic comes higher costs to keep the servers online. If you like SpaceWeatherLive and want to support the project you can choose a subscription for an ad-free site or consider a donation. With your help we can keep SpaceWeatherLive online!

No Ads on SWL Pro!
No Ads on SWL Pro! Subscriptions
Donations
Support SpaceWeatherLive.com! Donate
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2026/03/30X1.5
Last M-flare2026/04/04M1.0
Last geomagnetic storm2026/04/03Kp7- (G3)
Spotless days
Last 365 days3 days
20263 days (3%)
Last spotless day2026/02/24
Monthly mean Sunspot Number
March 202685.9 +7.7
April 2026122.8 +36.9
Last 30 days99.9 +42.1

This day in history*

Solar flares
12006M1.39
22002M1.38
31997C9.01
42002C8.7
52002C6.29
DstG
12000-292G4
21995-149G4
31977-95G3
41989-85G1
51960-76G1
*since 1994

Aurora on this day in history

No observations submitted for this day in history. If you've observed the aurora and you have some amazing photos to show off, submit your observations now!
Submit your aurora observation

Social networks

SpaceWeatherLive