# Astronomy (ASTRON) — Fall 2026 schedule

Chaffey College · 9 sections · Seat counts as of 2026-10-18

Source: https://colss-prod.ec.chaffey.edu/Student/Courses

Term dates: Sep 8, 2026 – Dec 11, 2026 (from the sections' dates) · 5 sessions, with dates: /c/chaffey-college/schedule/fall-2026/index.json · Academic calendar: https://www.chaffey.edu/programsacademics/calendars/index.php

Course descriptions: 2026-2027 catalog, /c/chaffey-college/catalog/2026-2027/courses/astron.md

## ASTRON-26 — Stars and Galaxies (3 units)

| CRN | Section | Format | Meets | Dates | Instructor | Seats |
| --- | --- | --- | --- | --- | --- | --- |
| 47113 | 47113 | In person | Tue/Thu 2:00–3:35pm, PL 107 | Aug 18–Nov 19 | E Membreno | 15 of 40 open |
| 47114 | 47114 | Hybrid | Mon 1:00–2:50pm, PL 107 (Aug 17–Nov 16); Plus online work | Aug 17–Nov 20 | E Membreno | 18 of 40 open |

## ASTRON-27 — Life in the Universe (3 units)

| CRN | Section | Format | Meets | Dates | Instructor | Seats |
| --- | --- | --- | --- | --- | --- | --- |
| 47135 | 47135 | Online anytime | Online, no set time | Sep 8–Dec 11 | E Membreno | 12 of 48 open |
| 51719 | 51719 | Online anytime | Online, no set time | Sep 8–Dec 11 | K Bader | 3 of 48 open |

## ASTRON-35 — Planets and the Solar System with Lab (4 units)

| CRN | Section | Format | Meets | Dates | Instructor | Seats |
| --- | --- | --- | --- | --- | --- | --- |
| 47136 | 47136 | Online anytime | Online, no set time | Aug 17–Oct 9 | K Bader | 3 of 24 open |
| 47137 | 47137 | Online anytime | Online, no set time | Aug 17–Nov 20 | G Gueorguiev | 7 of 24 open |
| 47138 | 47138 | Online anytime | Online, no set time | Aug 17–Nov 20 | B Hughes | 7 of 24 open |
| 47141 | 47141 | Online anytime | Online, no set time | Sep 8–Dec 11 | B Hughes | Full (26/24) |
| 51718 | 51718 | Online anytime | Online, no set time | Sep 8–Dec 11 | M Asaro | 3 of 24 open |