These are useful sites for cosmology and astronomy.
Hopefully the links do not change over time.
> start Cosmology links
Sky Scholar You Tube channel
Dr Robitaille does most of the presentations including:
thermodynamics, astrophysics, cosmology, and more
Thunderbolts YouTube channel
> end Cosmology
deep sky videos channel
solar system view from sun or earth
beyond Milky Way
Atlas of the Universe
This web page is designed to give everyone an idea of what our universe actually looks like. There are nine main maps on this web page, each one approximately ten times the scale of the previous one. The first map shows the nearest stars and then the other maps slowly expand out until we have reached the scale of the entire visible universe.
brief summary of GOALS:
The Great Observatories All-sky LIRG Survey (GOALS), is combining imaging and spectroscopic data from [many] observatories in a comprehensive study of the local Universe.
3D interactive graphics
Wikipedia has a list of Seyfert Galaxies:
As of 05/28/2019 the list had 72
Wikipedia has a list of Quasars:
the list has named quasars and several quasar groups
Wikipedia has a list of stars within 5 parsecs or 16.3 ly
last updated 05/28/2019
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