Observation record / NASA 科学动态

APOD: 2026 October 20 – An Anticrepuscular Rainbow Fan

First seen 10/20, 13:33 · Last observed 10/21, 22:37 · Source data is current

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Published 10/20, 12:05

30 minutesRank movement—

Building history

1 hourRank movement—

Building history

24 hoursRank movement-5

Baseline observed 10/21, 00:34

Publication position history

34 observations

Publication feed in source order. Position changes do not count as heat or momentum.

NASA public information; third-party exceptions

View original observation times and ranks

Observation time (Beijing)	Source position
10/21, 22:37	10
10/21, 21:37	10
10/21, 20:37	9
10/21, 19:37	9
10/21, 18:36	9
10/21, 17:36	9
10/21, 16:36	9
10/21, 15:36	9
10/21, 14:36	9
10/21, 13:36	9
10/21, 12:36	7
10/21, 11:36	7
10/21, 10:36	7
10/21, 09:36	7
10/21, 08:35	7
10/21, 07:35	7
10/21, 06:35	7
10/21, 05:35	7
10/21, 04:35	7
10/21, 03:35	6
10/21, 02:35	6
10/21, 01:35	5
10/21, 00:34	5
10/20, 23:34	4
10/20, 22:34	2
10/20, 21:34	1
10/20, 20:34	1
10/20, 19:34	1
10/20, 18:34	1
10/20, 17:33	1
10/20, 16:33	1
10/20, 15:33	1
10/20, 14:33	1
10/20, 13:33	1

Daily aggregate history

日期	Best daily position	Last daily position	Observations
2026-10-20	1	4	11
2026-10-21	5	10	23