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	Apr	08	00:00 PDT	20 days	06^h45^m08^s	+20°27'49"	11:26	18:28	01:29	23.3	20:18 until 23:34	Gemini
2026	Apr	09	00:00 PDT	21 days	06^h45^m05^s	+20°27'57"	11:22	18:24	01:25	23.4	20:19 until 23:30	Gemini
2026	Apr	10	00:00 PDT	22 days	06^h45^m03^s	+20°28'03"	11:18	18:20	01:21	23.4	20:20 until 23:26	Gemini
2026	Apr	11	00:00 PDT	23 days	06^h45^m02^s	+20°28'09"	11:14	18:16	01:17	23.5	20:21 until 23:22	Gemini
2026	Apr	12	00:00 PDT	24 days	06^h45^m01^s	+20°28'14"	11:10	18:12	01:13	23.5	20:22 until 23:18	Gemini
2026	Apr	13	00:00 PDT	25 days	06^h45^m01^s	+20°28'18"	11:06	18:08	01:09	23.6	20:22 until 23:15	Gemini
2026	Apr	14	00:00 PDT	26 days	06^h45^m02^s	+20°28'22"	11:02	18:04	01:05	23.6	20:23 until 23:11	Gemini
2026	Apr	15	00:00 PDT	27 days	06^h45^m03^s	+20°28'24"	10:58	18:00	01:01	23.6	20:24 until 23:07	Gemini
2026	Apr	16	00:00 PDT	28 days	06^h45^m05^s	+20°28'25"	10:55	17:56	00:58	23.7	20:25 until 23:03	Gemini
2026	Apr	17	00:00 PDT	29 days	06^h45^m08^s	+20°28'26"	10:51	17:52	00:54	23.7	20:26 until 22:59	Gemini
2026	Apr	18	00:00 PDT	00 days	06^h45^m11^s	+20°28'26"	10:47	17:48	00:50	23.8	20:27 until 22:55	Gemini
2026	Apr	19	00:00 PDT	01 days	06^h45^m15^s	+20°28'25"	10:43	17:44	00:46	23.8	20:28 until 22:51	Gemini
2026	Apr	20	00:00 PDT	02 days	06^h45^m19^s	+20°28'23"	10:39	17:41	00:42	23.8	20:29 until 22:47	Gemini
2026	Apr	21	00:00 PDT	03 days	06^h45^m24^s	+20°28'20"	10:35	17:37	00:38	23.9	20:30 until 22:43	Gemini
2026	Apr	22	00:00 PDT	04 days	06^h45^m30^s	+20°28'17"	10:31	17:33	00:34	23.9	20:31 until 22:40	Gemini
2026	Apr	23	00:00 PDT	05 days	06^h45^m36^s	+20°28'12"	10:28	17:29	00:31	24.0	20:32 until 22:36	Gemini
2026	Apr	24	00:00 PDT	06 days	06^h45^m42^s	+20°28'07"	10:24	17:25	00:27	24.0	20:33 until 22:32	Gemini
2026	Apr	25	00:00 PDT	07 days	06^h45^m49^s	+20°28'02"	10:20	17:21	00:23	24.0	20:34 until 22:28	Gemini
2026	Apr	26	00:00 PDT	08 days	06^h45^m56^s	+20°27'55"	10:16	17:18	00:19	24.1	20:35 until 22:24	Gemini
2026	Apr	27	00:00 PDT	09 days	06^h46^m04^s	+20°27'48"	10:12	17:14	00:15	24.1	20:36 until 22:21	Gemini
2026	Apr	28	00:00 PDT	10 days	06^h46^m12^s	+20°27'40"	10:09	17:10	00:11	24.2	20:37 until 22:17	Gemini
2026	Apr	29	00:00 PDT	11 days	06^h46^m21^s	+20°27'32"	10:05	17:06	00:08	24.2	20:38 until 22:13	Gemini
2026	Apr	30	00:00 PDT	12 days	06^h46^m30^s	+20°27'22"	10:01	17:02	00:04	24.2	20:39 until 22:09	Gemini
2026	May	01	00:00 PDT	13 days	06^h46^m40^s	+20°27'12"	09:57	16:59	00:00	24.3	20:40 until 22:05	Gemini
2026	May	02	00:00 PDT	14 days	06^h46^m50^s	+20°27'02"	09:53	16:55	23:56	24.3	20:40 until 22:02	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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