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The only thing that can be directly observed is a galaxy's apparent size (angular size). Since galaxies come in different sizes, this can only give a rough idea of the galaxy's distance from Earth.

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Why isn't a galaxy size alone useful in determining its distance from earth earth?

The only thing that can be directly observed is a galaxy's apparent size (angular size). Since galaxies come in different sizes, this can only give a rough idea of the galaxy's distance from Earth.


IF Earth's magnetic north pole is not located at the geographic north pole why is a compass useful for determining direction?

A compass is still useful for determining direction because it points towards the magnetic north pole, providing a consistent reference point that helps in navigation. Even though the magnetic north pole and geographic north pole are not aligned, the difference can be accounted for using magnetic declination adjustments.


What does the time-distance graph of seismic waves show?

The time-distance graph of seismic waves shows the relationship between the time it takes for seismic waves to travel and the distance they travel. It helps in determining the speed at which seismic waves propagate through the Earth's interior and provides information about the structure and composition of the Earth's layers.


What physical property is responsible for determining how Earth materials separate out into interior layers?

Density is responsible for determining how Earth materials separate out into interior layers.


Why does the Northern hemisphere winter not occur when the earth is farthest from the sun at aphelion?

The seasons are created primarily by the tilt of the Earth's axis. It just happens that the axis is tilted so that the most indirect light hits the Northern Hemisphere when the Earth is nearer the Sun, creating the Northern Hemisphere winter.

Related Questions

Why isn't a galaxy size alone useful in determining its distance from earth earth?

The only thing that can be directly observed is a galaxy's apparent size (angular size). Since galaxies come in different sizes, this can only give a rough idea of the galaxy's distance from Earth.


Why isn't a galaxy size alone useful in determining its distance from Earth?

The only thing that can be directly observed is a galaxy's apparent size (angular size). Since galaxies come in different sizes, this can only give a rough idea of the galaxy's distance from Earth.


Why isn't a galaxy's size useful in determining it's distance from earth?

The only thing that can be directly observed is a galaxy's apparent size (angular size). Since galaxies come in different sizes, this can only give a rough idea of the galaxy's distance from Earth.


Why isn't a galaxies size alone useful in determining its distance from earth?

The only thing that can be directly observed is a galaxy's apparent size (angular size). Since galaxies come in different sizes, this can only give a rough idea of the galaxy's distance from Earth.


How rocks layer useful in determining the age of the earth?

they are useful by showing where the fossil is buried then on that certain layer, it will be studied to know the age.


What is your galaxys name?

People on Earth call it the Milky Way (in English).


IF Earth's magnetic north pole is not located at the geographic north pole why is a compass useful for determining direction?

A compass is still useful for determining direction because it points towards the magnetic north pole, providing a consistent reference point that helps in navigation. Even though the magnetic north pole and geographic north pole are not aligned, the difference can be accounted for using magnetic declination adjustments.


What is most useful for measuring the shortest distance between two places on the earth and path between them?

Globe


What is the most accurate method for determining the distance to a nearby galaxy?

The most accurate method for determining the distance to a nearby galaxy is through the use of parallax measurements, which involve observing the slight shift in position of the galaxy against background stars as the Earth orbits the Sun. This method allows for precise calculations of the galaxy's distance based on trigonometry.


What are the factors that contribute to determining the luminosity scores of celestial objects?

The factors that contribute to determining the luminosity scores of celestial objects include their size, temperature, and distance from Earth. Larger and hotter objects tend to have higher luminosity scores, while objects that are closer to Earth appear brighter.


What is educational attainment?

In addition to correctly determining the size of the Earth and finding correct methods for determining the size of the Moon and the distance to the Moon and Sun, he was the head of the largest library in the western world (Alexandria in northern Egypt) and must have had many students.


What would happen if the earth were closer to Jupiter?

Considering the distance of Jupiter to the Sun, the Earth would suffer from an utter and never ending ice age, because the heat from the Sun is the major determining factor in the climate of our ecosystem.