Ephemeris for 21P/Giacobini-Zinner

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 21P/Giacobini-Zinner
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 21P/Giacobini-Zinner
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	04	00:00 PDT	19 days	09^h42^m04^s	−04°39'07"	09:52	15:42	21:32	22.0	Not observable	Sextans
2026	Jul	05	00:00 PDT	20 days	09^h42^m55^s	−04°39'40"	09:49	15:39	21:29	22.0	Not observable	Sextans
2026	Jul	06	00:00 PDT	21 days	09^h43^m46^s	−04°40'17"	09:46	15:36	21:26	22.1	Not observable	Sextans
2026	Jul	07	00:00 PDT	22 days	09^h44^m37^s	−04°40'59"	09:43	15:33	21:23	22.1	Not observable	Sextans
2026	Jul	08	00:00 PDT	23 days	09^h45^m28^s	−04°41'46"	09:40	15:30	21:20	22.1	Not observable	Sextans
2026	Jul	09	00:00 PDT	24 days	09^h46^m20^s	−04°42'37"	09:37	15:27	21:17	22.1	Not observable	Sextans
2026	Jul	10	00:00 PDT	25 days	09^h47^m11^s	−04°43'33"	09:34	15:23	21:13	22.1	Not observable	Sextans
2026	Jul	11	00:00 PDT	26 days	09^h48^m03^s	−04°44'34"	09:30	15:20	21:10	22.1	Not observable	Sextans
2026	Jul	12	00:00 PDT	27 days	09^h48^m55^s	−04°45'39"	09:27	15:17	21:07	22.1	Not observable	Sextans
2026	Jul	13	00:00 PDT	28 days	09^h49^m47^s	−04°46'48"	09:24	15:14	21:04	22.2	Not observable	Sextans
2026	Jul	14	00:00 PDT	29 days	09^h50^m39^s	−04°48'02"	09:21	15:11	21:01	22.2	Not observable	Sextans
2026	Jul	15	00:00 PDT	00 days	09^h51^m31^s	−04°49'20"	09:18	15:08	20:58	22.2	Not observable	Sextans
2026	Jul	16	00:00 PDT	01 days	09^h52^m23^s	−04°50'43"	09:15	15:05	20:55	22.2	Not observable	Sextans
2026	Jul	17	00:00 PDT	02 days	09^h53^m16^s	−04°52'10"	09:12	15:02	20:52	22.2	Not observable	Sextans
2026	Jul	18	00:00 PDT	03 days	09^h54^m08^s	−04°53'41"	09:09	14:59	20:48	22.2	Not observable	Sextans
2026	Jul	19	00:00 PDT	04 days	09^h55^m01^s	−04°55'16"	09:06	14:56	20:45	22.2	Not observable	Sextans
2026	Jul	20	00:00 PDT	05 days	09^h55^m53^s	−04°56'55"	09:03	14:53	20:42	22.2	Not observable	Sextans
2026	Jul	21	00:00 PDT	06 days	09^h56^m46^s	−04°58'38"	09:00	14:50	20:39	22.3	Not observable	Sextans
2026	Jul	22	00:00 PDT	07 days	09^h57^m39^s	−05°00'25"	08:58	14:47	20:36	22.3	Not observable	Sextans
2026	Jul	23	00:00 PDT	08 days	09^h58^m31^s	−05°02'17"	08:55	14:44	20:33	22.3	Not observable	Sextans
2026	Jul	24	00:00 PDT	09 days	09^h59^m24^s	−05°04'11"	08:52	14:41	20:30	22.3	Not observable	Sextans
2026	Jul	25	00:00 PDT	10 days	10^h00^m17^s	−05°06'10"	08:49	14:38	20:26	22.3	Not observable	Sextans
2026	Jul	26	00:00 PDT	11 days	10^h01^m10^s	−05°08'13"	08:46	14:35	20:23	22.3	Not observable	Sextans
2026	Jul	27	00:00 PDT	12 days	10^h02^m03^s	−05°10'19"	08:43	14:31	20:20	22.3	Not observable	Sextans
2026	Jul	28	00:00 PDT	13 days	10^h02^m56^s	−05°12'28"	08:40	14:28	20:17	22.3	Not observable	Sextans
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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