Imaggeo

Imaggeo On Monday: Increasing Moon – seen from Hamburg

Wolfgang Fraedrich February 15, 2021

Increasing Moon – seen from Hamburg. Credit: Wolfgang Fraedrich (distributed via imaggeo.egu.eu)

The image shows the increasing moon on March 16, 2016, seven days before the full moon. 53.3% of the lunar front are already illuminated. The moon does not glow on its own, but its surface reflects the sunlight. The sun always illuminates a complete half of the moon, which, in its orbit around the earth, always turns its face (which we see at full moon) toward the earth. The reason for the ...[Read More]

Imaggeo On Monday: Transit of Venus over the Sun

Eliza Teodorescu February 8, 2021

Transit of Venus over the Sun. Credit: Eliza Teodorescu (distributed via imaggeo.egu.eu)

The object of this photo is the transit of planet Venus in front of the Sun which took place on June 6th 2012 and was the last event of this kind until 2117! This is a very rare event with respect to a human life span and the transit always happens in pairs, 8 years apart, with a repeatability of more than two centuries. The picture was captured on the shore of the Black Sea, in Vama Veche, Romani ...[Read More]

Imaggeo On Monday: Space plasma in a jar

Gabriel Voitcu February 1, 2021

Space plasma in a jar . Credit: Gabriel Voitcu (distributed via imaggeo.egu.eu)

Laboratory visualisation of solar wind interaction with Earth’s magnetic field. The Van Allen radiation belt, Earth’s magnetosphere, “bow shock” and a solar coronal hole can all be seen, and are emphasized with the ‘Planeterrella experiment‘, a vacuum chamber in the shape of a bell jar with the ‘Sun’ on the left (in the form of a large metallic sphere) and the ‘Earth& ...[Read More]

Imaggeo On Monday: Catching a glimpse of the Mesosphere

Michiel Baatsen January 25, 2021

Catching a glimpse of the Mesosphere. Credit: Michiel Baatsen (distributed via imaggeo.egu.eu)

In the midst of summer when the sun does not set at high latitudes one can sometimes catch a glimpse of the mesosphere shortly after sunset or before sunrise. These thin veils, known as noctilucent clouds, are the highest known cloud-like structures forming at about 80km above the surface. At this height, they are still lit by the sun and can be seen from lower latitudes many hundreds of kilometer ...[Read More]