Space Time
Galaxies, nebulae and star clusters
Browse the full NGC and IC catalogs over a sky of up to 2.5 million stars. Select a galaxy, nebula, or cluster to identify it, and open sky survey imagery for the best-known objects.
🚀 Explore the deep sky Free · ~12,000 objects · up to 2.5M stars
About 12,000 NGC and IC objects
Chart symbols and colors distinguish galaxies, nebulae, and clusters. Search by NGC, IC, or Messier number, or use a common name. As you zoom into objects such as Andromeda and Orion, aligned sky survey imagery fills in the view.
From the Milky Way to the cosmic web
Pull back past the Milky Way to 43,530 galaxies from the 2MASS Redshift Survey, then continue to the cosmic microwave background. Read more on the cosmic web page.
FAQ
What deep-sky objects can I explore?
The full NGC/IC catalog, about 12,000 galaxies, nebulae and clusters (clickable, color-coded by type), with the Messier and NGC showpieces shown with real photos, over a sky of up to 2.5 million stars.
Are there real photos?
Yes: real survey photography, plus a sky-conforming deep-zoom aligned to the real sky.
Can I find Messier objects?
Search by name or catalog number and go straight to it. The planner can also pick tonight's best for you.
Is it free?
Yes. In your browser, no account, no download.