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Glossary term: Mês

Description: Em termos gerais, um mês é um intervalo de tempo ligado ao movimento da Lua em torno da Terra. Existem diferentes tipos de meses, e cada um está ligado a diferentes aspectos da órbita da Lua e do seu movimento na esfera celeste. Os vários tipos de meses incluem sinódico (baseado no ciclo das fases); sideral (baseado na posição relativa em relação às estrelas); anomalístico (baseado no tamanho aparente, que está relacionado à órbita elíptica da Lua e, portanto, à sua distância da Terra); e draconiano (baseado no movimento da Lua na esfera celeste). Cada um desses meses tem uma duração diferente, variando entre 27 e 29 dias. Os calendários de diversas culturas ao redor do mundo são alinhados com os vários tipos de meses, e os festivais religiosos marcam vários ciclos da Lua.

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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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Lunar Day

Lunar Day

astroEDU educational activity (links to astroEDU website)
Description: Through a fun-learning activity, understand why moon always keeps the same face towards Earth.

License: CC-BY-4.0 Creative Commons Attribution 4.0 International (CC BY 4.0) icons
Tags: Lunar day
Age Ranges: 4-6 , 6-8
Education Level: Primary , Secondary
Areas of Learning: Modelling , Structured-inquiry learning
Costs: Free
Duration: 30 mins
Group Size: Group
Skills: Analysing and interpreting data , Asking questions , Communicating information , Constructing explanations , Developing and using models