Crash Course Astronomy - Season 1 Episode 25 Distances
How do astronomers make sense out of the vastness of space? How do they study things so far away? Today Phil talks about distances, going back to early astronomy. Ancient Greeks were able to find the size of the Earth, and from that the distance to and the sizes of the Moon and Sun. Once the Earth/Sun distance was found, parallax was used to find the distance to nearby stars, and that was bootstrapped using brightness to determine the distances to much farther stars.
Year: 2015
Genre: Documentary
Country:
Studio: YouTube
Director:
Cast: Phil Plait
Crew: Phil Plait (Writer)
First Air Date: Jan 15, 2015
Last Air date: Dec 24, 2015
Season: 1 Season
Episode: 46 Episode
Runtime: 12 minutes
IMDb: 8.00/10 by 1.00 users
Popularity: 4.068
Language: English
Keyword : astronomy
Season
Season 1
Episode
Introduction to Astronomy
Naked Eye Observations
Cycles in the Sky
Moon Phases
Eclipses
Telescopes
The Gravity of the Situation
Tides
Introduction to the Solar System
The Sun
The Earth
The Moon
Mercury
Venus
Mars
Jupiter
Jupiter's Moons
Saturn
Uranus & Neptune
Asteroids
Comets
The Oort Cloud
Meteors
Light
Distances
Stars
Exoplanets
Brown Dwarfs
Low Mass Stars
White Dwarfs & Planetary Nebulae
High Mass Stars
Neutron Stars
Black Holes
Binary and Multiple Stars
Star Clusters
Nebulae
The Milky Way
Galaxies, Part 1
Galaxies, Part 2
Gamma-Ray Bursts
Dark Matter
The Big Bang, Cosmology Part 1
Dark Energy, Cosmology Part 2
A Brief History of the Universe
Deep Time
Everything, The Universe...And Life
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