These tools give you many different ways of looking at our data. As more data become available, we will add them to SkyServer.
Getting Started tells you what types of data you can find on SkyServer, what data each of the tools will return, and how you can best use the tools to study the sky.
Famous Places presents a gallery of beautiful images, including many large galaxie and some of the most distant quasars ever discovered.
Scrolling Sky lets you enjoy the sight of the sky moving on the screen, simulating what the SDSS telescope sees when it scans along on its nightly cycle.
Navigate lets you interactively navigate the sky by panning and zooming, then look at the properties of every object you click on.
Explore lets you interactively explore the properties of individual objects.
Get Images lets you view and download individual images and spectra at various zoom levels. Go here if you want to save a nice picture for a screen background.
Search allows you to search the database for sky positions, objects with a certain brightnesses, and various other criteria. You can even enter free-format SQL queries.
Cross-ID allows you to upload search the database for sky positions, or for objects with a list of object positions, then returns all SDSS objects within a certain radius of those positions.
Documentation is provided for those who would like to understand more about the properties of objects stored in our database. In particular, the Object Browser explains what each piece of data means.
Download contains a few papers that explain our data in much more detail, as well as a few tools that can be run on your computer, like SkyQA, a Java-based advanced query tool.
Site Traffic lets you see how many people have accessed SkyServer since its release on June 5, 2001. Hits are displayed by year, month, and day, with the highest-traffic days noted.