Astronomy picture of the day [Solar Dynamics Observatory (SDO) Atmospheric Imaging 
Assembly (AIA) image at 30.4 nm]

PSci 21 Elementary Astronomy - 2017 Spring

Instructor: Professor Ringwald
E-mail: ringwald[at] and replace [at] with @
Phone: (559) 278-8426
Also: (559) 278-2371

Office: Room 11 of the J-wing of McLane Hall (near the ground-floor Women's Room and east of McLane 161)
Office hours (between January 17 and May 12): MWF 1-2, TuTh 3:30-4:30 p.m.
If students need to see Professor Ringwald outside office hours, please call or e-mail first.

You don't need an appointment to come in during office hours.
This is time set aside for students, when Professor Ringwald will be in.
You can get homework help, free tutoring, or review sessions before exams, personalized just for you.

Please feel free to contact me, if you have any problems whatsoever in this course: or if you're doing well, and just want to talk about the wonders and mysteries of the Universe. It's in my interest, and I care, that you do well!

Click here for the
Course Syllabus
for the Noon to 12:50 p.m. section
Click here for the
Lab Schedule
for all sections.

Click here for the
Writing Guide
for Research Papers

News, updated 2017 May 25:

Go to Professor Ringwald's home page

Web page by Professor Ringwald (ringwald[at] and replace [at] with @)
Department of Physics, California State University, Fresno . Please read this disclaimer.