New Deck Flashcards
What is astronomical unit?
The distance between The Earth and The Sun.
Light Year is?
The distance light travels in one year
The meaning of Parsec?
**The distance used in astronomy, that is equal to 3.25 light years**
Nebula is dirt in an open field.
True or False
False.
Nebula is a cloud of dust and gas in outer space.
Constellation is?
Many stars forming a pattern, that is named after it’s apparent form.
Planetesimal is a minute planet; a body that could come together with many others to form a planet.
True or False?
True
Nuclear Fusion
Is a nuclear reaction in hydrogen combined to form helium
Terrestrial planets are?
A planet with a compact surface similar to Earth’s.
Gas Giant Planets is a planet being characterized because its covered entirely with gas?
True or False
True
Comet is a?
A some frozen gasses, ice and rocky debris that orbits the sun
The definition of Asteroid is?
Mini rocky bodies orbiting the sun
Define Cosmologist.
Someone who studies the evolution and space-time relations of the universe.
Angular velocity
The rate of change of the rotating bodies angle positions
Orbit
Is a gravitational curved pass of an object in space
Periods are?
A portion of time
What is revolve?
Move in a circular motion
Rotation
The action of rotating around an object or axis
Sidereal Day is?
the time between consecutive transits
Solar day is the?
time between successive meridian transits
* What isYear*?
The year is 365 days starting at January 1st to December 31
