Ephemeris for 3I/ATLAS

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Information about 3I/ATLAS
Finder-chart for 3I/ATLAS
Graphical rising and setting times

by Dominic Ford

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All times computed for South El Monte (latitude 34.05°; longitude -118.05°) and expressed in South El Monte time.

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Ephemeris for 3I/ATLAS
Date	Time	Age of Moon	Right Ascension	Declination	Rise	Culm	Set	Approx Mag.	Observable (hover mouse)	Constellation
Date	Time	Age of Moon	Right Ascension	Declination	Rise	Culm	Set	Approx Mag.	Observable (hover mouse)	Constellation

Ephemeris for 3I/ATLAS
Date			Time	Age of Moon	Right Ascension	Declination	Rise	Culm	Set	Approx Mag.	Observable (hover mouse)	Constellation
Date			Time	Age of Moon	Right Ascension	Declination	Rise	Culm	Set	Approx Mag.	Observable (hover mouse)	Constellation
2026	Feb	21	00:00 PST	03 days	07^h09^m51^s	+19°49'44"	13:54	20:53	03:53	20.0	18:40 until 01:58	Gemini
2026	Feb	22	00:00 PST	04 days	07^h08^m35^s	+19°51'49"	13:48	20:48	03:47	20.1	18:41 until 01:53	Gemini
2026	Feb	23	00:00 PST	05 days	07^h07^m23^s	+19°53'48"	13:43	20:43	03:42	20.2	18:42 until 01:48	Gemini
2026	Feb	24	00:00 PST	06 days	07^h06^m13^s	+19°55'41"	13:38	20:38	03:37	20.2	18:42 until 01:43	Gemini
2026	Feb	25	00:00 PST	07 days	07^h05^m05^s	+19°57'29"	13:33	20:33	03:32	20.3	18:43 until 01:38	Gemini
2026	Feb	26	00:00 PST	08 days	07^h04^m00^s	+19°59'11"	13:28	20:28	03:28	20.3	18:44 until 01:33	Gemini
2026	Feb	27	00:00 PST	09 days	07^h02^m58^s	+20°00'48"	13:23	20:23	03:23	20.4	18:45 until 01:28	Gemini
2026	Feb	28	00:00 PST	10 days	07^h01^m58^s	+20°02'21"	13:18	20:18	03:18	20.5	18:46 until 01:23	Gemini
2026	Mar	01	00:00 PST	11 days	07^h01^m01^s	+20°03'50"	13:13	20:13	03:13	20.5	18:47 until 01:19	Gemini
2026	Mar	02	00:00 PST	12 days	07^h00^m05^s	+20°05'14"	13:08	20:08	03:08	20.6	18:47 until 01:14	Gemini
2026	Mar	03	00:00 PST	13 days	06^h59^m12^s	+20°06'34"	13:03	20:03	03:03	20.6	18:48 until 01:09	Gemini
2026	Mar	04	00:00 PST	14 days	06^h58^m22^s	+20°07'50"	12:58	19:58	02:59	20.7	18:49 until 01:04	Gemini
2026	Mar	05	00:00 PST	15 days	06^h57^m33^s	+20°09'03"	12:53	19:54	02:54	20.7	18:50 until 01:00	Gemini
2026	Mar	06	00:00 PST	16 days	06^h56^m46^s	+20°10'12"	12:48	19:49	02:49	20.8	18:51 until 00:55	Gemini
2026	Mar	07	00:00 PST	17 days	06^h56^m01^s	+20°11'18"	12:44	19:44	03:45	20.9	18:51 until 00:50	Gemini
2026	Mar	08	00:00 PST	18 days	06^h55^m19^s	+20°12'21"	13:39	20:40	03:40	20.9	19:52 until 01:46	Gemini
2026	Mar	09	01:00 PDT	19 days	06^h54^m38^s	+20°13'21"	13:34	20:35	03:36	21.0	19:53 until 01:41	Gemini
2026	Mar	10	01:00 PDT	20 days	06^h53^m59^s	+20°14'18"	13:30	20:30	03:31	21.0	19:54 until 01:37	Gemini
2026	Mar	11	01:00 PDT	21 days	06^h53^m21^s	+20°15'12"	13:25	20:26	03:27	21.1	19:55 until 01:32	Gemini
2026	Mar	12	01:00 PDT	22 days	06^h52^m46^s	+20°16'04"	13:20	20:21	03:22	21.1	19:55 until 01:28	Gemini
2026	Mar	13	01:00 PDT	23 days	06^h52^m12^s	+20°16'53"	13:16	20:17	03:18	21.2	19:56 until 01:23	Gemini
2026	Mar	14	01:00 PDT	24 days	06^h51^m39^s	+20°17'40"	13:11	20:12	03:13	21.2	19:57 until 01:19	Gemini
2026	Mar	15	01:00 PDT	25 days	06^h51^m09^s	+20°18'24"	13:07	20:08	03:09	21.3	19:58 until 01:14	Gemini
2026	Mar	16	01:00 PDT	26 days	06^h50^m39^s	+20°19'07"	13:03	20:04	03:05	21.3	19:59 until 01:10	Gemini
2026	Mar	17	01:00 PDT	27 days	06^h50^m12^s	+20°19'47"	12:58	19:59	03:00	21.4	19:59 until 01:06	Gemini
All times computed for South El Monte (latitude 34.05; longitude -118.05) and expressed in South El Monte time. All positions are in J2000.0 coordinates. Ephemeris by Dominic Ford – https://in-the-sky.org/ephemeris.php

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