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Glossarbegriffe: Monde

Description: Monde sind Himmelskörper, die Planeten, Zwergplaneten oder kleinere Objekte wie Asteroiden umkreisen. Die Erde hat einen Mond, der Mond oder Erdmond genannt wird. Außer Merkur und Venus haben alle anderen Planeten des Sonnensystems auch Monde. Der Zwergplanet Pluto hat mehrere Monde, ebenso wie eine kleine Anzahl anderer Zwergplaneten und Asteroiden. Monde sind natürliche Satelliten. Künstliche Satelliten, wie sie für Kommunikations- oder wissenschaftliche Zwecke verwendet werden, sind keine Monde.

Viele Monde entstanden in einer Umlaufbahn um den Planeten, Zwergplaneten oder anderen Körper, den sie umkreisen. Man nimmt an, dass sich der Erdmond in einer Umlaufbahn um die Erde aus Material gebildet hat, das bei einer großen Kollision zwischen der Erde und einem Planetoiden in einer frühen Phase der Entstehung des Sonnensystems ins All herausgeschleudert wurde. Viele andere (meist kleinere) Monde sind Asteroiden, die von der Schwerkraft des Objekts, das sie umkreisen, eingefangen wurden.

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Term and definition status: The original definition of this term in English have been approved by a research astronomer and a teacher
The translation of this term and its definition is still awaiting approval

The OAE Multilingual Glossary is a project of the IAU Office of Astronomy for Education (OAE) in collaboration with the IAU Office of Astronomy Outreach (OAO). The terms and definitions were chosen, written and reviewed by a collective effort from the OAE, the OAE Centers and Nodes, the OAE National Astronomy Education Coordinators (NAECs) and other volunteers. You can find a full list of credits here. All glossary terms and their definitions are released under a Creative Commons CC BY-4.0 license and should be credited to "IAU OAE".

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The planet Jupiter with the two of the four Galilean moons (visible as bright dots) orbiting it.

Jupiter's Rotation, by Vishal Sharma, India

Bildunterschriften: Third place in the 2021 IAU OAE Astrophotography Contest, category Galilean moons: Jupiter’s Rotation, by Vishal Sharma, India. This time-lapse beautifully shows the rotation of Jupiter and the passage of two Galilean moons on the right side of the frame. Jupiter completes one rotation in just under 10 hours and we see as the Great Red Spot makes its way from left to right. The two moons travel a noticeable fraction of their orbit in this short time. This image was taken in 2020 in the North of India.
Bildnachweis: Vishal Sharma/IAU OAE

License: CC-BY-4.0 Creative Commons Namensnennung 4.0 International (CC BY 4.0) icons


The planet Jupiter, seen here as a bright disk, is orbited by the four Galilean moons, seen here as bright dots

Jupiter Moons Movie2, by Nicolas Hurez, Paul-Antoine Matrangolo, and Carl Pennypacker, United States of America

Bildunterschriften: Second place in the 2021 IAU OAE Astrophotography Contest, category Galilean moons. This sequence shows the orbit of the four Galilean moons around the planet Jupiter. Almost two entire orbits of the innermost moon, Io, can be seen, with the other moons (Europa and Ganymede, but in particular Callisto) being further away, orbiting noticeably slower. The images were obtained in 2018 with the Las Cumbres Global Observatory at different locations on Earth, allowing a continuous sequence of images over approximately half a week without gaps during the day. With clear skies and over the course of several nights, the motion of the Galilean moons can also be observed with binoculars (ideally steady your elbows on a surface).
Bildnachweis: Nicolas Hurez, Paul-Antoine Matrangolo and Carl Pennypacker/IAU OAE

License: CC-BY-4.0 Creative Commons Namensnennung 4.0 International (CC BY 4.0) icons


Jupiter with coloured horizontal bands of clouds. The shadow of the moon Io is seen as a dark circle in the top left

Jupiter, Io and its shadow, by Ralf Burkart, Germany

Bildunterschriften: First place in the 2021 IAU OAE Astrophotography Contest, category Galilean moons. This time-lapse of Jupiter taken in 2017 from Germany beautifully illustrates the transit of one of the Galilean moons, Io, in front of Jupiter. As this is simply a moon casting a shadow on a planet it is equivalent to a lunar eclipse on Earth observed from further away. While the shadow of the moon is clearly visible from the beginning, it might be difficult to spot the moon itself against the background of the beautiful atmospheric bands of Jupiter the first time the video is seen. Watching it repeatedly allows appreciating the rapid motion and rotation in this fantastic observation.
Bildnachweis: Ralf Burkart/IAU OAE

License: CC-BY-4.0 Creative Commons Namensnennung 4.0 International (CC BY 4.0) icons


The nearly full Moon with craters, light highlands and dark plains

Full moon

Bildunterschriften: The image shows the nearly full Moon observed with a small telescope and a DSLR camera.
Bildnachweis: Luc Viatour credit link

License: CC-BY-SA-3.0 Creative Commons Namensnennung - Weitergabe unter gleichen Bedingungen 3.0 Unported icons


Io is roughly spherical. Its surface mostly consists of yellowish sulphuric compounds and rather small darker volcanos.

Io

Bildunterschriften: NASA's Galileo spacecraft acquired its highest resolution images of Jupiter's moon Io on 3 July 1999. Io is one of the four Jovian moons discovered by Galileo Galilei in 1610. Io's colours are witness to its extensive volcanic activity as they stem from sulphuric compounds. Tidal forces from Jupiter and the neighbouring moons are the cause for Io's volcanism.
Bildnachweis: NASA/JPL/University of Arizona credit link

License: PD Public Domain icons

Related Activities


Deadly Moons

Deadly Moons

astroEDU educational activity (links to astroEDU website)
Description: Through art and science, children learn about moons of our solar system.

License: CC-BY-4.0 Creative Commons Namensnennung 4.0 International (CC BY 4.0) icons
Tags: Art , Creativity , Hands-on , Drawing
Age Ranges: 6-8 , 8-10 , 10-12
Education Level: Primary , Secondary
Areas of Learning: Fine Art focussed , Social Research
Costs: High Cost
Duration: 1 hour
Group Size: Group
Skills: Asking questions , Communicating information