Sun unleashes Halloween storm Journal Article uri icon



  • It is supposed to be a quiet time on the Sun, as we head toward solar minimum. At the beginning of October, it looked that way, as only a few small sunspots were visible. Then, sunspot group 484 came around the limb of the Sun on 18 October. By 23 October, when 484 was located right on the Earth‐Sun line, this huge group covered 1.7% of the solar disk. At the far edge of the Sun, another massive sunspot group, 486, was just coming into the field of view. And late on the 26th, a third group, 488, emerged from the interior of the Sun just to the north of 486 (Figure 1).

publication date

  • March 16, 2004

has restriction

  • closed

Date in CU Experts

  • February 21, 2014 3:19 AM

Full Author List

  • Lopez RE; Baker DN; Allen J

author count

  • 3

Other Profiles

International Standard Serial Number (ISSN)

  • 0096-3941

Electronic International Standard Serial Number (EISSN)

  • 2324-9250

Additional Document Info

start page

  • 105

end page

  • 108


  • 85


  • 11