The Astronomy Nexus

Endeavour is the next generation of the Distant Worlds charting application.
It is a modern HTML5 application that now contains over 100 million stars and over 200,000
deep-sky objects. Use it as a full-featured star atlas for all sorts of purposes.

Orion area

Center of the Coma Galaxy Cluster

Of course, the minor older feature of being able to see the universe as
it appears from over 100,000 stars is still there.

Sun from Alpha Centauri