Solar Terrestrial Sciences

Imaggeo On Monday: Cassiopeia with Milky Way

Michael Danielides October 18, 2021

Cassiopeia with Milky Way. Credit: Michael Danielides (distributed via imaggeo.egu.eu)

Cassiopeia with Milky Way in the background on September 9th, 2020. The image was taken in north-eastern state of Germany (Mecklenburg – Lower Pomerania) near the Town of Jarmen. The region has little light pollution and the evening had a clear sky (sky quality measure was 21.15). The image was taken at about 22:00 hrs local time. An EOS 1100D with a 50/1.6 lens was used. The exposure time w ...[Read More]

Imaggeo On Monday: International Space Station transiting the Sun

Eliza Teodorescu October 4, 2021

International Space Station transiting the Sun. Credit: Eliza Teodorescu (distributed via imaggeo.egu.eu)

The International Space Station, a human-made, life-supporting habitat, and a most complex and unique scientific laboratory, orbits the Earth in only 90 minutes – that is 16 times a day! Even so, only occasionally, we earthlings have the privilege of seeing it’s dark outline against the much brighter surfaces of the Sun or Moon. Timing is of crucial importance if you want to see this, ...[Read More]

Imaggeo On Monday: Aurora Australis with Southern Cross and Pointer stars

Ulrich Schreiber February 22, 2021

Aurora Australis with Southern Cross and Pointer stars. Credit: Ulrich Schreiber (distributed via imaggeo.egu.eu)

This view from the Port Hills of Christchurch in New Zealand glances South over Governors Bay into the distance, where an Aurora Australis is visible near the horizon. Almost in the center of the starry sky the Southern Cross with its 2 Pointer stars are showing prominently. Description by Ulrich Schreiber, after the description on imaggeo.egu.eu. Imaggeo is the EGU’s online open acc ...[Read More]

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]