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Observations - Coggle Diagram
Observations
Distances
Measuring Distances
Angular Size
Luminosity & Standard Candles
Variables
Supernovae
Spectroscopic Parallax
Trigonometry
The Distance Ladder
Size and Age of the Universe
Sequence of Observational Astronomy Discoveries
Data
Physics
Observation
Astronomical Objects
Properties
Position & Motion
Tangential Velocity
Radial Velocity
Doppler Shift
Line Width
Mass
Gravity & Rotation
Virial Theorem
Size & Morphology
Luminosity
Temperature
Age
Population Synthesis
Environment
Multiple Stars & Clusters
Galaxy Cluster
Composition
Atomic & Molecular
Extinction
Structures
Magnetic Fields
Dark Matter
Central Blackhole
Types
ISM / IGM, Diffuse Matter
Galaxies
Compact Bodies
Other stuff such as CMB, DM, Dark Energy
Stars, Planets, Minor Bodies
Universe Itself