HarvardKey is Harvard University's unified login system. All members of the CfA community are eligible to claim a HarvardKey. You will need to claim and use your HarvardKey in order to access Library resources and other services provided by Harvard.
Admittance to the Harvard Libraries is controlled by the Harvard Library Access Services Department. If you encounter any access issues, please go to the Privileges office, Room 130 in Widener, and the staff there will arrange to have your card coded correctly for entry. The Privileges staff can be reached at 617-495-4166 or by email: ...
24-hour access via ID card is linked to building access, which is linked to the CfA staff database. All CfA affiliates who have a current entry in the CfA Staff Database are eligible for 24-hour access to the Library. If you should have 24-hour building access, but your card does not work on the Library doors, contact the HCO Business Office, B-115, 617-495-7540.
You may renew most library materials remotely (via HOLLIS or phone) up to five times. After that, the materials must be returned and may be renewed in person. Once renewed in person, the renewal cycle starts anew.
You can return any Harvard Library book at the Wolbach Library. There is a messenger service that travels between the Harvard libraries. Coorespondingly, Wolbach Library materials can be returned to any other Harvard Library.
Library materials may be returned at the Wolbach Library Circulation Desk during regular business hours.
Library materials may be returned by mail to:
John G. Wolbach Library Center for Astrophysics 60 Garden St. MS-56 Cambridge, MA 02138.
In order to access both the ADS article archive and literature paid for by the Wolbach Library, you must set up an ADS account and designate Harvard as your library. This will enable links to full text when viewing an ADS record.