A Star In The Making
What is a giant cloud of dust and gas in science?
Nebula
Brightness = ?
Luminosity
A _________ is a large group of stars, gas, and dust held together by gravity.
Galaxy
_______ are made of ice, water and dust
Comets
The rotation of the earth on its axis is what causes ________
Day & Night ( yall slow)
A powerful and luminous explosion of a star?
Supernova
What determines the color of a star?
Temperature
What are the 3 major types of galaxies?
Spiral, Elliptical and irregular
________ are made from left-over rocky material.
Asteroids
Because the earth is tilted, different parts of the earth experiences different amounts of what?
Daylight
_______ becomes a main sequence when its core temp exceeds 10 million K
Protostar
What is the HOTTEST star?
Blue White Dwarf
_______ galaxy have arms like a pinwheel that move outward from dust center composed of dust and stars.
Spiral
_________ are small fragments of meteoroids
Meters
Which Hemisphere do we live in?
Northern Hemisphere
___________ is a region of cosmic dust formed from the cast off outer layers of a dying star
Planetary Nebula
What is Absolute Magnitude? ( Luminosity)
Measure of brightness
_________ galaxy looks like a flattened ball, most common, smalls amounts of gas and dust.
Elliptical
when theses meteors reach the earth they're called what?
Meteorites
What causes us to have seasons?
Revolution & Tilt
_________ is a place in space where gravity pulls so much that even light can't get out
Black Hole
Stellar (star) temperature is generally recorded using the ______ _____- which avoids negative temperatures.
Kevin Scale
What is Hubbles law?
The farther away another galaxy is from us the faster it travels!
Whats are meteoroids commonly referred as?
A shooting star
Would the days be shorter if the earth rotated slower or faster?
Shorter