everything Flashcards
baseline triangulation
also called the parallax technique
determine a stars distance
-earth as a baseline
-earths orbit as a baseline
solar system
a collection of planets orbiting a sun
- sol solar system
* under a galaxy (smallest)
galaxy
a collection of stars connected by gravitational attraction
- milly way galaxy
* above a solar system, below a universe (middle)
universe
everything
Altitude
height
Azimuth Coordinates
calculated using longitude and latitude
Living in Space
?
Spectral Analysis
electromagnetic spectrum
geocentric models
earth is theorized to be at the center of the solar system
Heliocentric Models
the sun is theorized to be at teh center of the solar system
planet orbit
earth: 365 days
? any other planets ?
telescopes
radio:
-gathers radio waves
-can detect faint galaxies
optical:
-gathers visible light and other forms of electromagnetic radiation
-produces clear images of celestial objects
red shifted
an object is moving away from us (towards the red part of the spectrum)
blue shifted
an object is moving towards us (towards the blue part of the spectrum)
terrestrial planets
mercury
venus
earth
mars
* have a compact, rocky surface*
