Ephemeris for C/2023 A3 (Tsuchinshan-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/2023 A3 (Tsuchinshan-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/2023 A3 (Tsuchinshan-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	Jul	17	00:00 PDT	02 days	18^h03^m07^s	+21°00'03"	16:07	23:11	06:14	17.8	21:12 until 04:19	Hercules
2026	Jul	17	03:00 PDT	03 days	18^h03^m02^s	+20°59'42"	16:07	23:10	06:14	17.8	21:12 until 04:18	Hercules
2026	Jul	17	06:00 PDT	03 days	18^h02^m58^s	+20°59'20"	16:07	23:10	06:14	17.8	21:12 until 04:18	Hercules
2026	Jul	17	09:00 PDT	03 days	18^h02^m54^s	+20°58'58"	16:07	23:10	06:13	17.8	21:12 until 04:18	Hercules
2026	Jul	17	12:00 PDT	03 days	18^h02^m50^s	+20°58'37"	16:07	23:10	06:13	17.8	21:12 until 04:18	Hercules
2026	Jul	17	15:00 PDT	03 days	18^h02^m45^s	+20°58'15"	16:07	23:10	06:13	17.8	21:12 until 04:18	Hercules
2026	Jul	17	18:00 PDT	03 days	18^h02^m41^s	+20°57'54"	16:07	23:10	06:13	17.8	21:12 until 04:18	Hercules
2026	Jul	17	21:00 PDT	03 days	18^h02^m37^s	+20°57'32"	16:07	23:10	06:13	17.8	21:12 until 04:18	Hercules
2026	Jul	18	00:00 PDT	03 days	18^h02^m33^s	+20°57'10"	16:03	23:06	06:09	17.8	21:11 until 04:14	Hercules
2026	Jul	18	03:00 PDT	04 days	18^h02^m28^s	+20°56'48"	16:03	23:06	06:09	17.8	21:11 until 04:14	Hercules
2026	Jul	18	06:00 PDT	04 days	18^h02^m24^s	+20°56'26"	16:03	23:06	06:09	17.8	21:11 until 04:14	Hercules
2026	Jul	18	09:00 PDT	04 days	18^h02^m20^s	+20°56'03"	16:03	23:06	06:09	17.8	21:11 until 04:14	Hercules
2026	Jul	18	12:00 PDT	04 days	18^h02^m16^s	+20°55'41"	16:03	23:06	06:09	17.8	21:11 until 04:14	Hercules
2026	Jul	18	15:00 PDT	04 days	18^h02^m12^s	+20°55'19"	16:03	23:06	06:09	17.8	21:11 until 04:13	Hercules
2026	Jul	18	18:00 PDT	04 days	18^h02^m07^s	+20°54'57"	16:03	23:06	06:09	17.8	21:11 until 04:13	Hercules
2026	Jul	18	21:00 PDT	04 days	18^h02^m03^s	+20°54'34"	16:03	23:06	06:08	17.8	21:11 until 04:13	Hercules
2026	Jul	19	00:00 PDT	04 days	18^h01^m59^s	+20°54'12"	15:59	23:02	06:04	17.8	21:10 until 04:09	Hercules
2026	Jul	19	03:00 PDT	05 days	18^h01^m55^s	+20°53'49"	15:59	23:01	06:04	17.8	21:10 until 04:09	Hercules
2026	Jul	19	06:00 PDT	05 days	18^h01^m50^s	+20°53'26"	15:59	23:01	06:04	17.8	21:10 until 04:09	Hercules
2026	Jul	19	09:00 PDT	05 days	18^h01^m46^s	+20°53'03"	15:58	23:01	06:04	17.8	21:10 until 04:09	Hercules
2026	Jul	19	12:00 PDT	05 days	18^h01^m42^s	+20°52'40"	15:58	23:01	06:04	17.8	21:10 until 04:09	Hercules
2026	Jul	19	15:00 PDT	05 days	18^h01^m38^s	+20°52'18"	15:58	23:01	06:04	17.8	21:10 until 04:09	Hercules
2026	Jul	19	18:00 PDT	05 days	18^h01^m34^s	+20°51'55"	15:58	23:01	06:04	17.8	21:10 until 04:09	Hercules
2026	Jul	19	21:00 PDT	05 days	18^h01^m30^s	+20°51'32"	15:58	23:01	06:04	17.8	21:10 until 04:09	Hercules
2026	Jul	20	00:00 PDT	05 days	18^h01^m25^s	+20°51'09"	15:54	22:57	06:00	17.8	21:10 until 04:05	Hercules
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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