Do we first determine the gravity or density of a celestial object?

In summary, the conversation discusses the order in which we determine the gravitational strength and density of a celestial object, and how we can use one property to determine the other. It is suggested that this information can be researched independently.
  • #1
Dreksler
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TL;DR Summary
What do we know first, the gravity of a celestial object or its density? And how do we get to know it?
Do we first find out as to what is the gravitational strength of a celestial object and then with that determine its density or do we first know what is its density and then conclude with that as to what is its gravity? Also whether the knowledge about gravitational strength or density comes first how do we get to determine that first property with which we can then later conclude about the other one?
 
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  • #2
Dreksler said:
Summary:: What do we know first, the gravity of a celestial object or its density? And how do we get to know it?

Do we first find out as to what is the gravitational strength of a celestial object and then with that determine its density or do we first know what is its density and then conclude with that as to what is its gravity? Also whether the knowledge about gravitational strength or density comes first how do we get to determine that first property with which we can then later conclude about the other one?
This is the sort of thing you can research for yourself. E.g.

https://en.wikipedia.org/wiki/Solar_mass#History_of_measurement
 
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1. What is the difference between gravity and density?

Gravity is a force that attracts objects towards each other, while density is a measure of how compact the mass of an object is. In other words, gravity is a force that is influenced by an object's mass and distance, while density is a measure of an object's mass per unit volume.

2. Why is it important to determine the gravity and density of a celestial object?

Determining the gravity and density of a celestial object can provide valuable information about its composition, mass, and structure. This can help us understand the formation and evolution of the object, as well as its potential effects on other objects in its vicinity.

3. How do scientists determine the gravity and density of a celestial object?

Scientists use various methods, such as observations and mathematical calculations, to determine the gravity and density of a celestial object. For example, the gravitational pull of a celestial object on other objects can be measured, and its mass and density can be calculated using Newton's law of gravitation.

4. Is there a specific order in which scientists determine the gravity and density of a celestial object?

There is no specific order in which scientists determine the gravity and density of a celestial object. Both of these properties are important and can be determined simultaneously using various methods. However, in some cases, it may be more practical to determine one property before the other.

5. How do the gravity and density of a celestial object affect its orbit?

The gravity and density of a celestial object can affect its orbit in different ways. The gravitational force of a more massive object can cause a smaller object to orbit around it, while the density of an object can affect its shape and stability. The gravity and density of a celestial object can also determine the speed and trajectory of its orbit.

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