Sceinec Vocab Dec 7 Flashcards
Solistice
The suns path is farthest North or south from the equator
June 21st-> longest period of daylight
December 21st-> shortest period of daylight
Equinox
Sun is right over the equator, day and night are the same.
(Spring and autumn)
Stonehenge
Considered one of the most well known prehistoric structure in the entire world. This stone circle was created in 2500 BC
(Neolithic period)
Pyramids of Giza
The Great Pyramids of Giza, Egypt. They can also be seen from space. These tombs were created by the Ancient Egyptians some 4,500 years ago, and since then, humans have found a way to view them from outer space
Chichem Itza, Mexico
Celestial observations influenced the architecture of the these pyramids.
Geocentric
Earth centered model to explain palenyru motion
( about 2000 years ago )
Priorises by Aristotle(a Greek philosopher)
Heliocentric
Sun cantered solar system that was first put forth by polish astronomer Nicholas Copernicus
Aristotle
A Greek philosopher and polymath during the classic period in Ancient Greece.
Copernicus
Mathematician and astronomer proposed that the sun was fixed in the center of universe and that the earth was the one that revolves around it
Galileo
An Italian astronomer, physicist and engineer sometimes described as a polymath
Kepler
Johannes Kepler was a German mathematician and astronomer who discovered that the Earth and planets travel about the sun in elliptical orbits. He gave three fundamental laws of planetary motion.
Sundials
Sundials have been around for more then 7000 years, they’re used to measure the passage of time
Merkhet
Ancient Egyptians created this which was used to map astronomical positions and predict the movement of stars
Quadrant
Used to measure the stars height above the horizon
Astrolabe
Arabian astronomers used this tool to make accurate charts or star positions
Cross staff
A device for measuring the angle between objects
Telescope
Let’s them see further into space and understand distances in space more clearly
Astronomical unit
Used for measuring local distances in our solar system
Light years
Used to measure distances oustide the solar system
Hertzsprung-Russel diagram
Diagram compares the surface temperature of the stars brightness
As temperature increased brightness increases
Constellations
Groupings of stars we see as patterns in the night sky. They’re considered the “Recognized /official” stars
Asterisms
Unofficial unrecognized star groupings
Galaxies
Grouping of billions of stars, gas and dust
We like in the milky way which is a spiral galaxy
Comet
Made of ice and dust. When near the sun, their tail appears to glow. Heat of the sun causes for it to let out a lot of gasses
Meteoroids
Rock
Found flowing around space
Meteor
A result of a meteoroid approaching too close to the earth. They’re seen as shooting stars
Meteorites
Like stage a meteoroid can take. When a m’était has been in the sky long enough to hit earths surface.
Eclipse
The obscuring of light from one celestial body
Solar eclipse- sun ig getting darker:sun is eclipsed
Lunar eclipse-moon is getting darker:moon is eclipsed
Solar flare
Strong burst of radiation coming from the release of magnetic energy involved with the sunspots
Corona
Outer layer of the suns atmosphere
It isn’t visible due to the bright light the wing give off covering it
Sunspot
Dark huge places that appear in the surface of the sun. They are dark because they’re cooler than their surroundings.
Temperature of the sun
The sun has a temperature of 5500(c) and core 15 000 000 (c)
