B What is the Unit for Gas Giant Planets in Astrophysics?

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Thread starter Erenjaeger
Start date Jul 31, 2017
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Astrophysics Unit Units

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The unit ⊕ represents Earth masses in astrophysics, indicating that >10 M⊕ refers to more than ten times the mass of Earth. This notation is commonly used to classify gas giant planets. Additionally, a circle with a dot instead of a plus sign denotes solar masses, which is a different measurement. Understanding these units is crucial for interpreting the mass and classification of celestial bodies. The discussion clarifies the significance of these symbols in astrophysical contexts.

Jul 31, 2017

Erenjaeger

what is this unit, ⊕ ?? was reading an astrophysics book and came across it. "Gas Giant planets (>10 M⊕)" I am guessing that its mega something?

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Jul 31, 2017

BenAS

Erenjaeger said:

what is this unit, ⊕ ?? was reading an astrophysics book and came across it. "Gas Giant planets (>10 M⊕)" I am guessing that its mega something?

Earth masses. So >10 M⊕ is more than 10 Earth masses.

Jul 31, 2017

tony873004

Science Advisor

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If you see one that is a circle with a dot instead of a plus, that means Sun.

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