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L5: Observations - Coggle Diagram
L5: Observations
Measure Distance
Trigonometry
How to measure distance through Parallax
Angular to actual length via velocities
luminosity and standard candles
redshift and Hubble Constant
The distance ladder
Size and Age of the Universe
Quantify Measurements
Random Processes
Poisson Process
&Poisson Distribution
Normal (Gaussian) Distribution
Error Propagation
Signal vs. Noise
Noise and Errors
Systematic vs. Random Errors
Estimate the Error
SNR
Long exposure to boost SNR
Properties of Astronomical Objects
Overview:Types of Astronomical Objects
Stars and compact bodies
ISM / IGM, diffuse matter
Galaxies
Planets and minor bodies
Other stuff in the Universe, e.g. CMB, DM, “Dark Energy”, etc.
Properties we measure
mass
size/morphology
luminosity
temperature
age
environment
position & motion
composition
