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Sleeping Beauty

On 21 March, a tiny spot near the Sun's east limb marked the end of a spotless stretch that started on 6 March.

PROBA2 observed a solar eclipse

On 26 February, ESA's PROBA2 satellite observed a solar eclipse.

First GOES-16 solar images

There's a new entry in the space weather acronym list: SUVI.

EUI getting ready!...

The folks at CSL (Centre Spatial de Liège, Belgium) are assembling and testing the EUI (Extreme Ultraviolet Imager).

A stretched coronal hole

Once again, a coronal hole (CH) is making the headlines!

STCE Workshop

On 31 January, the STCE Workshop "Geomagnetic storms and solar eruptions: from Sun to Earth" took place in the cozy meeting room of the RMI. Thirty-nine (39!) participants got submerged in the modeling of drivers of geomagnetic storms and solar storms as well as their impact on the geospace environment. The workshop was chaired by Dr Véronique Delouille (ROB), and consisted of 7 talks each followed by a few minutes of Q and A. An overview and links to some of the talks can be found at the workshop's website.

The Moon in sight

This is an exceptional picture of the moon. Because it is made with a solar telescope!

Low 10.7 cm radio flux

Every day, the Dominion Radio Astrophysical Observatory (DRAO) in Penticton, BC, Canada, measures and publishes the values of the 10.7 cm solar radio flux on their website. The wavelengths around 10.7 cm (frequencies around 2800 MHz) are ideal for monitoring the solar activity, as they are very sensitive to conditions in the upper chromosphere and at the base of the corona. As a result, this radio flux is widely used in solar research and space weather applications.

RoboSWOP in a space game EUFHORIA looking for sunspot treasures

Three challenges for which the belspo BRAIN-be was funded. Find out what it is about.

Spotless Days page

Regular solar observers have noticed that since mid-2016, the Sun has occasionally been devoid of sunspots. In fact, the month of December counted another 6 spotless days (see SDO-image from 10 December underneath). These spotless disks will gradually become a familiar feature as the solar cycle is heading for its next minimum, currently expected by the end of this decade. The number of spotless days can vary significantly from one solar cycle transit to another.

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