Note: Access to the SDSS requires a password to log in. This information is available upon request through the "Request Access" button above and requires a valid email account. Please include your full name and institution in the request email.
Note: The SDSS is unavailable nightly from 2:00AM to 3:00AM for maintenance.
This site made possible thanks to NIFA support (grant # 2012-67009-19715)