Telescopes Flashcards
Three main types
Optical space based
Ground based optical
Radio telescope
Two types of optical telescopes
Reflector
Refractor
Refractor
Made up of two lenses
Objective lense
And eyepiece
The objective lense gathers light and bends it into focus
The eyepiece magnified the image
Any diameter over 1 meter will cause the glass in the lense to warp under their own weight
Reflector
2 mirrors
Primary concave and a secondary convex
MOST
Micro variability and oscillation of stars
Launched in 2003 by Canada
Size of a suitcase
Mirror is 15 cm in diameter
Anlyzes planets
Detects features on the insides of stars
Recording virbrations on heir surface
Canada France Hawaii
Located in Mauna Kea Hawaii
Ground based opitical telescope
In 2007 discovered a black hole that is 14 billion ly away y
Radio telescopes
Largest is in acrecibo observatory in Pueter rico
Studies radio waves detects and record them as many objects emit radio waves
Signals collected and focused
Electronics and computers map the information
Radio telescope advantages
Less affected by weather
Can be detected during day and night
Not distorted by clouds pollution and atmosphere unlike light waves
Accomplishments radio telescopes
Help establish the Big Bang theory
Detected cosmic background radiation
Detected quasars
Put out as much energy as an entire galaxy
No larger than a solar system
Located at the edge of the visible universe
James Webb space telescope
Us chef in 2014 Reflector that observed infrared light Had a large golden primary mirror 6.5 meters long Sunshield 1.5 million km from earth
Chandra x
Uses x rays
Launched in July 23 1999
Detects images from x ray sources billions of light years away
It is a refractor
Use
Study black holes supernovas exploded stars and dark matter
