Introductory Astronomy: Galaxy Distances and Lookback Time

Video lecture discussing the distance determination method of standard candles, and the concept of lookback time.

• #education
• #astronomy
• #introductory_astronomy
• #college_astronomy
• #lecture_tutorial
• #lecture_tutorials
• #cepheid_variable
• #period_luminosity_relationship
• #standard_candle
• #standard_candles
• #white_dwarf_supernova
• #white_dwarf_supernovae
• #type_i_supernova
• #type_ia_supernova
• #lookback_time
• #cosmic_distances
• #edwin_hubble
• #andromeda_galaxy
• #hubble_deep_field
• #gravitational_lensing
• #local_group