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ASTR 5 · Lec 1

Life in Universe

Fall 2026Rich, M.4 units

Seats, time, final and grades

Seats

Closed.

178 of 178 enrolled, lecture and all discussions summed.

Meets

TR 2:00pm-3:15pm

Lecture only. You also attend a discussion, listed below.

Final

Mon 7 Dec, 8:00am to 11:00am

One exam for the whole class, Los Angeles time.

Read 3 hours ago.

Grades

3.49
predicted, this instructor · 727 grades

727 letter grades, Rich, M..

Read 13 minutes ago. This is a recent reading, not a live seat count.

dibs has seen this section open 50 times since 17 August. The last time was 1 October. 9 of those were readings where the capacity figure moved and the enrolled count did not, so dibs could not tell whether a seat existed and did not send an alert.

Enroll on the registrar (opens in a new tab) Sign in to watch for an opening

Watching is the one thing here that needs an account, because an alert needs somewhere to go. Everything else on this page works signed out.

Put this class on a board

A board is one quarter you are drafting, so it needs an account to live in. Signing in brings you straight back to this page, with this class still in front of you.

Before you can enroll

From the registrar limited early, then open

Seats are held for entering students who enroll through New Student Orientation sessions beginning July 2, 2026. New student restrictions will be lifted on September 15, 2026 at 8 a.m.

The limit stands until 15 September, and lifts then. dibs still counts this class as one you can take, but not yet.

Discussions

You enroll in the discussion, not the lecture, so the seat figure above is the sum across all of them and can read open while every discussion you could actually join is full.

4 discussions, 1 open: Dis 1C, F 3:00pm-3:50pm. Lecture reads closed, so its 1 open discussion cannot be reached from here. There is no waitlist either, so the only way in is somebody dropping the lecture.

These seats are real, and you cannot reach them from here. The lecture reads closed, and you enroll in the discussion but attend both, so the 1 open discussion below is out of reach while that holds. There is no waitlist either, so the only way in is somebody dropping the lecture.
  • Dis 1A

    W 8:00am-8:50am

    Foley, J.E.

    Waitlist, 0 of 1 places taken.

  • Dis 1B

    W 9:00am-9:50am

    Foley, J.E.

    Waitlist, 0 of 1 places taken.

  • Dis 1C

    F 3:00pm-3:50pm

    Senthil Nathan, S.

    Open, 1 seat left.

  • Dis 1D

    F 4:00pm-4:50pm

    Senthil Nathan, S.

    Waitlist, 0 of 1 places taken.

When it meets

Mon
Tue
Wed
Thu
Fri
6am
7am
8am
9am
10am
11am
12pm
1pm
2pm
3pm
4pm
5pm
6pm
7pm
8pm
9pm
10pm

Meets: TR 2:00pm-3:15pm

Discussions: F 3:00pm-3:50pm

Kinsey Science Teaching Pavilion 1220B

Grades

3.49
predicted, this instructor · 727 grades

Of the 6 other people in the grade record for ASTR 5, the 2 with the most grades: TREU, TOMMASO L at 2.97 over 400 grades and NAOZ, SMADAR at 3.78 over 301 grades.

A range
63%
P/NP
10%
D/F/W
0.8%

Full grade history for ASTR 5

What students say

dibs measures outcomes: grades, seats, how fast it fills. For what the class is actually like to sit in, BruinWalk has the reviews.

Workload, very light. 4.7 of 5 for Michael Rich, where 5 is lightest. Read about 1 month ago.

dibs has read this course’s reviews and none of them say what kind of work it sets, so dibs has nothing to show rather than a guess. Read from 120 reviews about 1 month ago. That is the reviewers being silent, and not a course that sets no work.

ASTR 5 reviews for Michael Rich Reviews for all professors of ASTR 5

Will it still be here

high risk chance of closing before your enrollment pass.

Final enrollment per term from four years of grade data. Summer excluded: different population, different pass structure.

  • 16021F
  • 7722W
  • 18022S
  • 16822F
  • 12923W
  • 16423S
  • 17823F
  • 13924W
  • 17224S
  • 14024F
  • 14025W
  • 17025S
  • 16925F
Enrollment by term: 21F 160, 22W 77, 22S 180, 22F 168, 23W 129, 23S 164, 23F 178, 24W 139, 24S 172, 24F 140, 25W 140, 25S 170, 25F 169

Peak 180 · most recent 25F at 169

Seats over time

Filled by 24 over about 2 months

50 times reopened
178 of 178 · no seats left in its discussions
17 Aug 12:329 Sep 03:061 Oct 17:40
dibs read 168 of the 173 hours its hourly record covers, 97%, and did not look in 5. dibs had no hourly record before 24 Sep, which is the other 913 of 1086 plotted.178 of 178 enrolled at the newest reading, 13 minutes ago, and no seats left in its discussions. Seats from 17 Aug 12:32 to 1 Oct 17:40, 154 to 178. dibs read 168 of the 173 hours its hourly record here covers, 97%. An hour marked as read confirms a check, not continuous monitoring. That check recorded no change; changes between checks may be missed. For 5 hours dibs was keeping a record and did not reach this section. Nothing before 24 September at 13:00, where this section's record starts, has a read either way, which is 913 hours of this window. Where the drawing is faint or broken, that never means the readings are doubtful. It means the stretch between them is unaccounted for.

A dot is a reading where something moved: the seat count, the status, or the waitlist. Flat between dots joins recorded counts; changes between reads may be missed. The line starts when dibs first saw this section rather than reaching back before it existed. The last one is the last time dibs read this section, moved or not: 13 minutes ago.

Show the readings (122)
Recorded Enrolled Capacity Status Waitlist Hours read
1 Oct 17:40 178 178 closed - 1 of 1
1 Oct 17:40 178 178 closed - 17 of 17
1 Oct 01:20 177 178 open - 3 of 3
30 Sep 23:40 178 178 closed - 2 of 2
30 Sep 22:52 177 178 open - 20 of 21
30 Sep 02:10 178 178 closed - 2 of 3
30 Sep 00:52 177 178 open - 14 of 15
29 Sep 10:10 178 178 closed - 10 of 12
28 Sep 23:20 177 178 open - 2 of 2
28 Sep 22:02 178 178 closed - 2 of 2
28 Sep 21:30 177 178 open - 4 of 4
28 Sep 18:20 178 178 closed - 2 of 2
28 Sep 17:30 177 178 open - 3 of 3
28 Sep 15:02 176 178 open - 2 of 2
28 Sep 14:30 177 178 open - 2 of 2
28 Sep 13:50 178 178 closed - 1 of 1
28 Sep 13:00 177 178 open - 63 of 63
25 Sep 23:40 178 178 closed - 1 of 1
25 Sep 23:30 177 178 open - 2 of 2
25 Sep 22:30 178 178 closed - 2 of 2
25 Sep 21:42 177 178 open - 1 of 1
25 Sep 21:00 178 178 closed - 4 of 4
25 Sep 18:12 177 178 open - 7 of 7
25 Sep 12:20 178 178 closed - 2 of 2
25 Sep 11:12 177 178 open - 5 of 5
25 Sep 07:10 178 178 closed - 10 of 10
24 Sep 22:40 177 178 open - 2 of 2
24 Sep 21:50 178 178 closed - 2 of 2
24 Sep 20:40 177 178 open - 7 of 7
24 Sep 14:50 178 178 closed - 2 of 2
24 Sep 13:52 177 178 open - 1 of 1
24 Sep 13:00 178 178 closed - 1 of 3, 2 no hourly record
24 Sep 11:12 177 178 open - no hourly record
24 Sep 11:00 178 178 closed - no hourly record
24 Sep 01:20 177 178 open - no hourly record
21 Sep 20:10 178 178 closed - no hourly record
21 Sep 17:40 177 178 open - no hourly record
21 Sep 15:02 178 178 closed - no hourly record
21 Sep 00:30 177 178 open - no hourly record
18 Sep 23:40 178 178 closed - no hourly record
18 Sep 22:40 177 178 open - no hourly record
18 Sep 21:00 178 178 closed - no hourly record
18 Sep 18:30 177 178 open - no hourly record
18 Sep 16:00 178 178 closed - no hourly record
18 Sep 15:12 177 178 open - no hourly record
18 Sep 01:12 178 178 closed - no hourly record
18 Sep 00:50 177 178 open - no hourly record
17 Sep 23:50 178 178 closed - no hourly record
17 Sep 23:00 177 178 open - no hourly record
17 Sep 22:02 178 178 closed - no hourly record
17 Sep 21:50 177 178 open - no hourly record
17 Sep 21:00 178 178 closed - no hourly record
17 Sep 20:10 177 178 open - no hourly record
17 Sep 19:22 178 178 closed - no hourly record
17 Sep 16:50 177 178 open - no hourly record
17 Sep 15:52 178 178 closed - no hourly record
17 Sep 15:10 177 178 open - no hourly record
15 Sep 14:50 178 178 closed - no hourly record
15 Sep 13:52 177 178 open - no hourly record
15 Sep 07:30 178 178 closed - no hourly record
14 Sep 01:00 177 178 open - no hourly record
12 Sep 01:00 178 178 closed - no hourly record
11 Sep 23:02 174 178 open - no hourly record
11 Sep 22:40 178 178 closed - no hourly record
11 Sep 22:10 174 178 open - no hourly record
11 Sep 21:32 178 178 closed - no hourly record
11 Sep 21:20 174 178 open - no hourly record
11 Sep 20:50 178 178 closed - no hourly record
11 Sep 20:30 174 178 open - no hourly record
11 Sep 20:00 178 178 closed - no hourly record
11 Sep 19:32 174 178 open - no hourly record
11 Sep 18:40 178 178 closed - no hourly record
11 Sep 00:20 174 178 open - no hourly record
10 Sep 23:50 174 174 closed - no hourly record
10 Sep 21:40 174 178 open - no hourly record
10 Sep 20:41 174 174 closed - no hourly record
10 Sep 20:00 174 178 open - no hourly record
10 Sep 19:30 174 174 closed - no hourly record
10 Sep 18:40 174 178 open - no hourly record
10 Sep 18:00 174 174 closed - no hourly record
10 Sep 17:20 174 178 open - no hourly record
10 Sep 14:50 174 174 closed - no hourly record
10 Sep 13:40 174 178 open - no hourly record
10 Sep 01:20 174 174 closed - no hourly record
10 Sep 00:41 167 174 open - no hourly record
10 Sep 00:20 174 174 closed - no hourly record
9 Sep 23:40 167 174 open - no hourly record
9 Sep 23:10 174 174 closed - no hourly record
9 Sep 21:42 167 174 open - no hourly record
9 Sep 20:00 174 174 closed - no hourly record
9 Sep 19:40 167 174 open - no hourly record
9 Sep 18:40 174 174 closed - no hourly record
9 Sep 01:10 167 174 open - no hourly record
8 Sep 23:10 168 169 open - no hourly record
8 Sep 22:40 167 174 open - no hourly record
8 Sep 21:00 168 169 open - no hourly record
8 Sep 20:00 167 174 open - no hourly record
5 Sep 01:00 168 169 open - no hourly record
5 Sep 00:40 164 169 open - no hourly record
4 Sep 23:00 168 169 open - no hourly record
4 Sep 22:40 164 169 open - no hourly record
4 Sep 22:10 163 169 open - no hourly record
4 Sep 21:20 164 169 open - no hourly record
4 Sep 20:50 168 169 open - no hourly record
4 Sep 20:00 163 169 open - no hourly record
4 Sep 18:10 164 169 open - no hourly record
4 Sep 17:10 163 169 open - no hourly record
3 Sep 11:27 164 169 open - no hourly record
26 Aug 00:40 164 164 closed - no hourly record
25 Aug 23:40 158 164 open - no hourly record
25 Aug 20:40 164 164 closed - no hourly record
24 Aug 10:55 158 164 open - no hourly record
23 Aug 11:55 158 159 open - no hourly record
20 Aug 17:55 159 159 closed - no hourly record
19 Aug 23:55 153 159 open - no hourly record
19 Aug 21:55 154 159 open - no hourly record
19 Aug 17:55 153 159 open - no hourly record
19 Aug 15:55 154 154 closed - no hourly record
19 Aug 14:55 154 159 open - no hourly record
19 Aug 13:55 154 154 closed - no hourly record
19 Aug 12:55 154 159 open - no hourly record
17 Aug 12:32 154 154 closed - -
How readings and alerts work

A reading and an hourly record are different things, and most charts here hold more of the second missing than present. dibs has taken readings of a section since long before it began keeping an hour-by-hour log of when it looked, so the empty stretches are dibs saying it was not keeping that log yet, not that it looked and found nothing. That is the age of the record and not a fault.

Seat counts show the last successful read, not live availability. Refreshes can be delayed by request limits or upstream interruptions. Watched sections receive priority, but an hourly update for every section is not guaranteed.

The registrar can change a seat count between our checks. Alerts depend on dibs detecting an opening and completing delivery; a quiet watch does not prove that no seat opened. Check the registrar before enrolling.

Class chat

One dibs reader watches this class or has it on a plan. Nobody has posted yet.

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