# Astronomy (ASTR) — Fall 2026 schedule

Mt. San Antonio College · 36 sections · Seat counts as of 2026-10-15

Source: https://prodrg.mtsac.edu/StudentRegistrationSsb/ssb/term/termSelection?mode=search

Course descriptions: 2026-2027 catalog, /c/mt-san-antonio-college/catalog/2026-2027/courses/astr.md

## ASTR 5 — Introduction to Astronomy (3 units)

| CRN | Section | Format | Meets | Dates | Instructor | Seats |
| --- | --- | --- | --- | --- | --- | --- |
| 21844 | 01 | In person | Sat 9:00am–12:10pm, 11 - Science North 2119 | Aug 24–Dec 13 | Scott M Phelps | Full (36/36) |
| 21845 | 02 | In person | Mon/Wed 9:45–11:10am, Bldg 60 1306 | Aug 24–Dec 13 | Michael A Hood | 1 of 28 open |
| 21846 | 03 | In person | Mon/Wed 9:45–11:10am, 11 - Science North 2119 | Aug 24–Dec 13 | Priscilla E Holguin Luna | Full (39/36) |
| 21847 | 04 | In person | Tue/Thu 9:45–11:10am, 11 - Science North 2119 | Aug 24–Dec 13 | Micol H Christopher | 3 of 36 open |
| 21848 | 05 | In person | Mon/Wed 11:30am–12:55pm, 11 - Science North 2119 | Aug 24–Dec 13 | Peter G Halverson | 5 of 36 open |
| 21849 | 06 | In person | Tue/Thu 11:30am–12:55pm, 11 - Science North 2119 | Aug 24–Dec 13 | Micol H Christopher | 1 of 36 open |
| 21850 | 07 | In person | Mon/Wed 1:15–2:40pm, 11 - Science North 2119 | Aug 24–Dec 13 | Andranik A Mkrtchyan | 3 of 36 open |
| 21853 | 09 | In person | Mon/Wed 3:00–4:25pm, 11 - Science North 2119 | Aug 24–Dec 13 | Jonathan A Conrad | 4 of 36 open |
| 21854 | 10 | Online anytime | Online, no set time | Aug 24–Dec 13 | Micol H Christopher | Full (38/36), 2 waitlisted |
| 21856 | 11 | Online anytime | Online, no set time | Aug 24–Dec 13 | Micol H Christopher | Full (39/36), 4 waitlisted |
| 21858 | 12 | Online anytime | Online, no set time | Aug 24–Dec 13 | Priscilla E Holguin Luna | 3 of 36 open, 2 waitlisted |
| 21859 | 13 | Online anytime | Online, no set time | Aug 24–Dec 13 | Priscilla E Holguin Luna | 3 of 36 open |
| 21860 | 14 | Online anytime | Online, no set time | Aug 24–Dec 13 | Kaoru Kamiya | 1 of 36 open, 3 waitlisted |
| 21861 | 15 | Online anytime | Online, no set time | Aug 24–Dec 13 | Adrian Villalobos | Full (36/36) |
| 21862 | 16 | Online anytime | Online, no set time | Aug 24–Dec 13 | Adrian Villalobos | 2 of 36 open |
| 21863 | 17 | Online anytime | Online, no set time | Aug 24–Dec 13 | Cynthia H Ibrahim | 5 of 36 open, 3 waitlisted |
| 21866 | 18 | Online anytime | Online, no set time | Aug 24–Dec 13 | Cynthia H Ibrahim | 5 of 36 open |
| 25051 | 19 | Online anytime | Online, no set time | Aug 24–Dec 13 | Kaoru Kamiya | 1 of 36 open |

## ASTR 5H — Introduction to Astronomy - Honors (3 units)

| CRN | Section | Format | Meets | Dates | Instructor | Seats |
| --- | --- | --- | --- | --- | --- | --- |
| 24068 | 02 | In person | Tue 3:00–6:10pm, Bldg 60 1306 | Aug 24–Dec 13 | Priscilla E Holguin Luna | 6 of 20 open |

## ASTR 5L — Astronomical Observing Laboratory (1 units)

| CRN | Section | Format | Meets | Dates | Instructor | Seats |
| --- | --- | --- | --- | --- | --- | --- |
| 22192 | 01 | In person, Laboratory/Studio/Activity | Mon/Wed 11:30am–12:55pm, Bldg 60 1306 | Aug 24–Dec 13 | Michael A Hood | 1 of 28 open |
| 22194 | 02 | In person, Laboratory/Studio/Activity | Tue 11:30am–2:40pm, Bldg 60 1306 | Aug 24–Dec 13 | Julie J Bray-Ali | 3 of 20 open |
| 22195 | 03 | In person, Laboratory/Studio/Activity | Sat 1:00–4:10pm, Bldg 60 1306 | Aug 24–Dec 13 | Scott M Phelps | 4 of 20 open |
| 22196 | 04 | In person, Laboratory/Studio/Activity | Mon 1:15–4:30pm, Bldg 60 1306 | Aug 24–Dec 13 | Julie J Bray-Ali | 4 of 20 open |
| 22197 | 05 | In person, Laboratory/Studio/Activity | Thu 3:00–6:10pm, Bldg 60 1306 | Aug 24–Dec 13 | Priscilla E Holguin Luna | 2 of 20 open |
| 22199 | 06 | Online anytime | Online, no set time | Aug 24–Dec 13 | Julie J Bray-Ali | 4 of 20 open |
| 22200 | 07 | Online anytime | Online, no set time | Aug 24–Dec 13 | Julie J Bray-Ali | 2 of 20 open |
| 22201 | 08 | Online anytime | Online, no set time | Aug 24–Dec 13 | Michael A Hood | Full (20/20) |
| 22202 | 09 | Online anytime | Online, no set time | Aug 24–Dec 13 | Michael A Hood | 5 of 20 open |
| 22203 | 10 | Online anytime | Online, no set time | Aug 24–Dec 13 | Micol H Christopher | Full (27/20), 4 waitlisted |
| 22204 | 11 | Online anytime | Online, no set time | Aug 24–Dec 13 | Micol H Christopher | Full (26/20), 2 waitlisted |
| 22205 | 12 | Online anytime | Online, no set time | Oct 19–Dec 13 | Kaoru Kamiya | Full (20/20) |
| 24701 | 13 | Online anytime | Online, no set time | Aug 24–Dec 13 | Michael A Hood | 5 of 20 open |

## ASTR 7 — Geology of the Solar System (3 units)

| CRN | Section | Format | Meets | Dates | Instructor | Seats |
| --- | --- | --- | --- | --- | --- | --- |
| 24066 | 01 | In person | Tue/Thu 1:15–2:40pm, 11 - Science North 2119 | Aug 24–Dec 13 | Dylan H Terry | 1 of 36 open |

## ASTR 8 — Introduction to Stars, Galaxies, and the Universe (3 units)

| CRN | Section | Format | Meets | Dates | Instructor | Seats |
| --- | --- | --- | --- | --- | --- | --- |
| 21408 | 01 | In person | Mon/Wed 11:30am–12:55pm, Bldg 61 1420 | Aug 24–Dec 13 | Julie J Bray-Ali | 1 of 36 open |
| 21409 | 02 | Online anytime | Online, no set time | Aug 24–Dec 13 | Julie J Bray-Ali | 5 of 36 open, 1 waitlisted |

## ASTR 99 — Special Projects in Astronomy (2 units)

| CRN | Section | Format | Meets | Dates | Instructor | Seats |
| --- | --- | --- | --- | --- | --- | --- |
| 25017 | 01 | Online anytime, Other independent study | Online, no set time | Aug 24–Dec 13 | Jessica L Draper | 4 of 5 open |