12 October 2016
Proxima Centauri reveals yet more intrigue as a cycle of dramatic sunspots is observed
... a cool, red dwarf, the star has a regular cycle of sunspots. At first glance, Proxima Centauri seems nothing like our Sun as... minimum, whilst during a solar maximum typically more than 100 sunspots cover less than one percent of the Sun's surface on ...
10 May 2016
When sunspots are minimal, the solar magnetic field is at a maximum, say researchers
...weak, so weak that it is not capable of generating sunspots or other activity. However, results from the study suggest that...periods in which solar observers noted an apparent lack of sunspot activity is the Maunder Minimum. This occurred between 1645 ...
June 2019
Solar superstorms and their effects on Earth
...spacecraft In the late morning of 1 September 1859, the British amateur astronomer Richard Carrington was sketching a massive sunspot from his observatory in England when the image became unfocused. He soon realised that he was observing a phenomenon...
02 December 2016
GREGOR helps scientists take a closer look at the Sun
... the decay phase and they can also represent the re-establishment of convection which is normally suppressed by the sunspot's strong magnetic field. To highlight the initial success of GREGOR, a series of papers based on the telescope’s first science...
June 2014
In thrall to a star: understanding the Sun will help us understand our own climate and environment
... mass ejections and geomagnetic storms; years and decades in sunspot production; yet centuries and millennia in its global energy generation...scrutiny The observed Total Solar Irradiance (TSI) and sunspot number count over the last 3.5 solar cycles. ...
