Ephemeris for 21P/Giacobini-Zinner
Date			Age of	Right	Declination	Rise	Culm	Set	Approx	Observable	Constellation
			Moon	Ascension					Mag.	(hover mouse)
2018	Sep	11	02 days	05h57m23s	+30°18'02"	23:03	07:20	15:33	8.0	01:32 until 05:12	Auriga
2018	Sep	13	03 days	06h01m23s	+28°32'56"	23:13	07:20	15:23	8.0	01:38 until 05:14	Auriga
2018	Sep	14	04 days	06h05m13s	+26°47'50"	23:22	07:20	15:13	8.0	01:44 until 05:15	Gemini
2018	Sep	15	05 days	06h08m55s	+25°02'59"	23:31	07:19	15:04	8.0	01:50 until 05:16	Gemini
2018	Sep	16	06 days	06h12m29s	+23°18'36"	23:39	07:19	14:55	8.0	01:56 until 05:17	Gemini
2018	Sep	17	07 days	06h15m54s	+21°34'52"	23:46	07:18	14:47	8.0	02:01 until 05:18	Gemini
2018	Sep	18	08 days	06h19m13s	+19°51'59"	23:53	07:18	14:38	8.0	02:06 until 05:20	Orion
2018	Sep	19	09 days	06h22m24s	+18°10'09"	00:04	07:17	14:30	8.1	02:11 until 05:21	Gemini
2018	Sep	20	10 days	06h25m29s	+16°29'30"	00:10	07:16	14:22	8.1	02:16 until 05:22	Orion
2018	Sep	21	10 days	06h28m28s	+14°50'13"	00:16	07:15	14:14	8.1	02:21 until 05:23	Gemini
2018	Sep	22	11 days	06h31m20s	+13°12'24"	00:21	07:14	14:07	8.1	02:26 until 05:24	Gemini
2018	Sep	23	12 days	06h34m07s	+11°36'10"	00:27	07:13	13:59	8.2	02:30 until 05:25	Monoceros
2018	Sep	24	13 days	06h36m48s	+10°01'38"	00:31	07:12	13:52	8.2	02:35 until 05:26	Monoceros
2018	Sep	25	14 days	06h39m23s	+08°28'51"	00:36	07:10	13:45	8.2	02:39 until 05:28	Monoceros
2018	Sep	26	15 days	06h41m54s	+06°57'56"	00:40	07:09	13:38	8.3	02:43 until 05:29	Monoceros
2018	Sep	27	16 days	06h44m19s	+05°28'53"	00:44	07:07	13:31	8.3	02:47 until 05:30	Monoceros
2018	Sep	28	17 days	06h46m40s	+04°01'47"	00:48	07:06	13:24	8.3	02:51 until 05:31	Monoceros
2018	Sep	29	18 days	06h48m56s	+02°36'38"	00:52	07:04	13:17	8.4	02:55 until 05:32	Monoceros
2018	Sep	30	19 days	06h51m07s	+01°13'27"	00:55	07:02	13:10	8.4	02:59 until 05:33	Monoceros
2018	Oct	01	20 days	06h53m14s	-00°07'44"	00:58	07:01	13:03	8.4	03:03 until 05:34	Monoceros
2018	Oct	02	21 days	06h55m17s	-01°26'58"	01:01	06:59	12:56	8.5	03:07 until 05:35	Monoceros
2018	Oct	03	22 days	06h57m15s	-02°44'13"	01:04	06:57	12:50	8.5	03:11 until 05:37	Monoceros
2018	Oct	04	23 days	06h59m09s	-03°59'32"	01:06	06:55	12:43	8.6	03:14 until 05:38	Monoceros
2018	Oct	05	24 days	07h01m00s	-05°12'56"	01:09	06:53	12:37	8.6	03:18 until 05:39	Monoceros
2018	Oct	06	26 days	07h02m46s	-06°24'25"	01:11	06:50	12:30	8.7	03:22 until 05:40	Monoceros
All times computed for Cambridge (latitude 42.38; longitude -71.11) and expressed in Cambridge time. Ephemeris by Dominic Ford – https://in-the-sky.org/ephemeris.php