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

PSci 21 Elementary Astronomy - 2022 Spring

Instructor: Professor Ringwald
Email: ringwald[at]csufresno.edu and replace [at] with @
Phone: (559) 278-8426
Also: (559) 278-2371

Office: Room 11 of the J-wing of McLane Hall
(about 15 meters east of the ground-floor Women's Room and the large lecture hall McLane 161)

Office hours (between January 20 and May 11): MoWe 3:30-5:00 p.m. and MoWe 8:00-9:00 p.m.

If students need to see Professor Ringwald outside office hours, please call or email first.

Students don't need an appointment to come in during office hours. This is time set aside for you, when I will be in.

Education is fundamentally a self-directed activity. One gets out of it what one puts into it, and one needs to pursue it actively.

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

Click here for the
Course Syllabus
for the 2:00 to 3:15 p.m. in-person section
Click here for the
Course Schedule,
including links to all class videos
Click here for the
Lab Schedule
for all sections.

Click here for the
Writing Guide
for Research Papers



News, updated 2022 May 30:


Go to Professor Ringwald's home page

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