constellations experts. an astronomer is a scientist who studies celestial bodies such as planets...
TRANSCRIPT
AstronomersConstellations Experts
What’s an Astronomer?
• An Astronomer is a scientist who studies celestial bodies such as planets moons and stars.
Galileo Galilei
• Inventor of the telescope• He used this telescope to make observations regarding the
earth’s rotation around the sun. • Up until his observations, people believed that the sun
revolved around the earth.• This rotation of the earth also impacts our constellations. • As the earth rotates, different constellations are visible to us
at different seasons in the year. • Thanks to Galileo, we now know this fact!
Edmond Halley
• Discovered Halley’s Comet
Sir Isaac Newton
• Researched the effect of gravity
Edwin Hubble
• Discovered that galaxies are constantly moving away from each other
Robert Goddard
• Launched the first modern rocket
Tools of Astronomers
• Astronomers use many tools in their job such as a telescope, binoculars, observatories, and planetariums.
Telescope
• A telescope is a special instrument (usually in the shape of a tube) that uses lenses and sometimes mirrors to make faraway objects closer.
Binoculars
• Binoculars is a portable magnifying device for viewing distant objects that consist of two little telescopes side by side, one for each eye.
Observatories
• An observatory is a laboratory, often high on a mountain, where scientists use telescopes and other tools to study stars.
Planetariums
• A planetarium is an auditorium type location where fellow astronomers can come and view the work and findings of other astronomers.
Constellations
• Astronomers study constellations. • A constellation is a group of stars that has
become associated with (and named after) an object, animal, or character.
• Most constellations have shapes that go along with them.
• There are 88 constellations total.
Constellations
• Astronomers use their tools to see the constellations in the night sky and learn more about them.
• Constellations move based on the time of year because of the earth’s rotation around the sun.
• Every constellation has a Greek myth associated with it.
• These stories have been retold for centuries and make remembering the constellations easier.