Contact Information

On the Caltech campus, the Astronomy Department is primarily located in the Cahill Center for Astronomy and Astrophysics, located on the south side of California Blvd, just east of the Wilson cross-street. It is the "orange" building east of the Keith Spalding Building. On the campus map, it is building number 17. The Astronomy Department office is Cahill room 229.

General queries and mail for the Astronomy Department can be directed to the following address, telephone, and fax numbers:

MC 249-17
1200 East California Blvd,
Pasadena CA 91125

phone: 626-395-4973
fax: 626-568-9352

For more information on Physics, Math and Astronomy at Caltech, please visit the Division website.

Relevant Astronomy Department e-mail addresses include:

Astronomy outreach queries
outreach [at]
General Inquiries
gp [at]
Graduate admissions info
gradadmin [at]
General website issues
webmaster [at]
IT/computing issues
help [at]
Public inquiries regarding
Palomar Observatory
palomar-info [at]