Ephemeris for C/2025 L1 (ATLAS)

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 C/2025 L1 (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 C/2025 L1 (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	May	01	00:00 PDT	13 days	12^h40^m36^s	+51°45'29"	12:47	22:52	08:57	15.9	20:40 until 04:56	Canes Venatici
2026	May	01	03:00 PDT	13 days	12^h40^m11^s	+51°47'06"	12:46	22:51	08:57	15.9	20:40 until 04:56	Canes Venatici
2026	May	01	06:00 PDT	14 days	12^h39^m46^s	+51°48'40"	12:45	22:51	08:57	15.9	20:40 until 04:56	Canes Venatici
2026	May	01	09:00 PDT	14 days	12^h39^m22^s	+51°50'14"	12:44	22:50	08:57	15.9	20:40 until 04:56	Canes Venatici
2026	May	01	12:00 PDT	14 days	12^h38^m58^s	+51°51'48"	12:43	22:50	08:57	15.9	20:40 until 04:56	Canes Venatici
2026	May	01	15:00 PDT	14 days	12^h38^m34^s	+51°53'24"	12:43	22:50	08:57	15.9	20:40 until 04:56	Canes Venatici
2026	May	01	18:00 PDT	14 days	12^h38^m10^s	+51°54'59"	12:42	22:49	08:57	15.9	20:40 until 04:56	Canes Venatici
2026	May	01	21:00 PDT	14 days	12^h37^m45^s	+51°56'33"	12:41	22:49	08:57	15.9	20:40 until 04:56	Canes Venatici
2026	May	02	00:00 PDT	14 days	12^h37^m21^s	+51°58'03"	12:36	22:44	08:53	15.9	20:40 until 04:55	Canes Venatici
2026	May	02	03:00 PDT	14 days	12^h36^m57^s	+51°59'31"	12:35	22:44	08:53	15.9	20:40 until 04:55	Canes Venatici
2026	May	02	06:00 PDT	15 days	12^h36^m33^s	+52°00'57"	12:35	22:44	08:53	15.9	20:40 until 04:55	Canes Venatici
2026	May	02	09:00 PDT	15 days	12^h36^m09^s	+52°02'23"	12:34	22:43	08:53	15.9	20:40 until 04:55	Canes Venatici
2026	May	02	12:00 PDT	15 days	12^h35^m46^s	+52°03'49"	12:33	22:43	08:53	16.0	20:40 until 04:55	Canes Venatici
2026	May	02	15:00 PDT	15 days	12^h35^m23^s	+52°05'16"	12:32	22:42	08:53	16.0	20:40 until 04:55	Canes Venatici
2026	May	02	18:00 PDT	15 days	12^h34^m59^s	+52°06'44"	12:32	22:42	08:53	16.0	20:40 until 04:55	Canes Venatici
2026	May	02	21:00 PDT	15 days	12^h34^m35^s	+52°08'09"	12:31	22:42	08:53	16.0	20:40 until 04:55	Canes Venatici
2026	May	03	00:00 PDT	15 days	12^h34^m12^s	+52°09'32"	12:26	22:37	08:49	16.0	20:41 until 04:53	Canes Venatici
2026	May	03	03:00 PDT	15 days	12^h33^m48^s	+52°10'52"	12:25	22:37	08:49	16.0	20:41 until 04:53	Canes Venatici
2026	May	03	06:00 PDT	16 days	12^h33^m25^s	+52°12'10"	12:25	22:37	08:49	16.0	20:41 until 04:53	Canes Venatici
2026	May	03	09:00 PDT	16 days	12^h33^m02^s	+52°13'27"	12:24	22:36	08:49	16.0	20:41 until 04:53	Canes Venatici
2026	May	03	12:00 PDT	16 days	12^h32^m39^s	+52°14'46"	12:23	22:36	08:49	16.0	20:41 until 04:53	Canes Venatici
2026	May	03	15:00 PDT	16 days	12^h32^m17^s	+52°16'06"	12:22	22:35	08:48	16.0	20:41 until 04:53	Canes Venatici
2026	May	03	18:00 PDT	16 days	12^h31^m54^s	+52°17'25"	12:22	22:35	08:48	16.0	20:41 until 04:53	Canes Venatici
2026	May	03	21:00 PDT	16 days	12^h31^m31^s	+52°18'43"	12:21	22:35	08:48	16.0	20:41 until 04:53	Ursa Major
2026	May	04	00:00 PDT	16 days	12^h31^m08^s	+52°19'58"	12:16	22:30	08:44	16.0	20:42 until 04:52	Ursa Major
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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