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How do astronomers plot a star's exact position?
Astronomers know that there isn't really a "celestial sphere", a globe of crystal in which the stars are embedded. But it is often convenient to talk of a "sphere" around the Earth, in which all the stars and planets move. And sometimes it makes the math a whole lot easier. Navigators do all their calculations AS IF all the stars were stuck to a crystal sphere, and the Moon and planets wandered around inside it.
What do you use to look at small objects?
You can use a microscope
Why do modern astronomers continue to use the celestial sphere when they know that stars are not all at the same distance?
For some purposes, especially explaining the apparent motion of the stars, the actual distances are not relevant, so the celestial sphere is still a useful model in such cases.
What is a stars location determined by?
Astronomers use the coordinate system of RA right ascension also called hour angle, and Declination (Dec)RA is the celestial equivalent of terrestrial longitude. Both RA and longitude measure an east-west angle along the equator; and both measure from a zero point on the equator. For longitude, the zero point is the Prime Meridian; for RA, the zero point is known as the First Point of Aries, which is the place in the sky where the Sun crosses the celestial equator at the March equinox. RA is always zero on the meridian of the celestial sphere which passes through the celestial poles and first point of Aries. Declination is comparable to latitude, projected onto the celestial sphere, and is measured in degrees north and south of thecelestial equator. Therefore, points north of the celestial equator have positive declinations, while those to the south have negative declinations. * An object on the celestial equator has a dec of 0°. * An object at the celestial north pole has a dec of +90°. * An object at the celestial south pole has a dec of −90°.
What tools do you use to observe objects in space?
Telescope,microscope,
What navigational tools did Cortes use?
He used celestial objects and compass.
How do astronomers use the celestial sphere to plot a star's exact positions?
Astronomers use celestial spheres and mathematical equations to approximate the distances between the star and other celestial objects.
How do you use the word bodies in a sentence meaning objects such as stars and asteroids?
The celestial bodies are especially bright on a cool, clear night.
What do you use a light year for?
A light year is used for measuring the distance between planets, others solar systems, galaxies, and other related celestial objects.
What did Hernando Cortes want to do to get ready for his journey?
what did hernando cortes use on his voyage
How do astronomers plot a star's exact position?
Astronomers know that there isn't really a "celestial sphere", a globe of crystal in which the stars are embedded. But it is often convenient to talk of a "sphere" around the Earth, in which all the stars and planets move. And sometimes it makes the math a whole lot easier. Navigators do all their calculations AS IF all the stars were stuck to a crystal sphere, and the Moon and planets wandered around inside it.
How do you use celestial in a sentence?
In the past I have read a book called 'The Celestial Globe'.
What did Arab scholars use to figure out their location on Earth?
Arab scholars used tools like astrolabes and celestial navigation techniques to determine their location on Earth. They were also skilled in astronomy and mathematics, enabling them to accurately calculate their position based on the position of celestial objects in the sky.
What equipment did Hernando Cortes use?
a sword
Did Hernando Cortes use a mask?
no he did not use a mask.
Two tools for observation use by scientists?
Scientists use microscopes to observe and study tiny structures at a magnified level. Telescopes, on the other hand, are used to observe distant celestial objects in space.
What is the function of a sextant?
Sextant is used to measure the angle between any two visible objects.Its primary use is to determine the angle between a celestial object and the the horizon which is also know as objects altitude.
