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, various large galaxies, and some of the most distant quasars ever discovered.
Get Images lets you download of individual images and spectra at various zoom levels. Go here if you want to save a nice picture for a screen background.
Scrolling Sky lets you enjoy the sight of the sky moving on the screen as the SDSS telescope sees it when it scans along on its nightly cycle.
Search allows you to search the database for sky positions, objects with a certain brightness, and and various other criteria. You can even enter free-format SQL queries, or use a simple form to search the database.
Object Crossid allows you to do dynamic cross identifications of SDSS objects with a user defined list of object positions, 5-part SDSS object ID (consisting of run, rerun, camcol, field, obj) for photometric objects, or 3-part SDSS spectroscopic object ID (consisting of plate, MJD and fiber). You can even join a photometric object list with matching spectra (SpecObj) if you want spectroscopic information, or join a spectroscopic object list with matching photometric objects. A few simple upload formats are supported for the list of objects to cross-identify.
CasJobs allows you to submit much larger and intensive SQL queries in batch (asynchronous) mode and save query results in your own personal database (MyDB).
Help is provided for those who would like to understand more about these tools, using SQL, and the properties of the objects stored in our database.