Ephemeris for 117P/Helin-Roman-Alu

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 117P/Helin-Roman-Alu
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 117P/Helin-Roman-Alu
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	Jan	19	00:00 PST	00 days	05^h08^m08^s	+27°35'51"	13:35	21:01	04:28	19.3	18:11 until 02:25	Taurus
2026	Jan	20	00:00 PST	01 days	05^h07^m44^s	+27°35'23"	13:31	20:57	04:23	19.3	18:12 until 02:21	Taurus
2026	Jan	21	00:00 PST	02 days	05^h07^m21^s	+27°34'55"	13:27	20:53	04:19	19.4	18:13 until 02:17	Taurus
2026	Jan	22	00:00 PST	03 days	05^h06^m59^s	+27°34'28"	13:23	20:49	04:14	19.4	18:14 until 02:12	Taurus
2026	Jan	23	00:00 PST	04 days	05^h06^m38^s	+27°34'00"	13:18	20:44	04:10	19.4	18:15 until 02:08	Taurus
2026	Jan	24	00:00 PST	05 days	05^h06^m17^s	+27°33'33"	13:14	20:40	04:06	19.4	18:16 until 02:04	Taurus
2026	Jan	25	00:00 PST	06 days	05^h05^m58^s	+27°33'05"	13:10	20:36	04:02	19.4	18:17 until 01:59	Taurus
2026	Jan	26	00:00 PST	07 days	05^h05^m39^s	+27°32'38"	13:06	20:31	03:57	19.4	18:17 until 01:55	Taurus
2026	Jan	27	00:00 PST	08 days	05^h05^m22^s	+27°32'11"	13:01	20:27	03:53	19.4	18:18 until 01:51	Taurus
2026	Jan	28	00:00 PST	09 days	05^h05^m05^s	+27°31'44"	12:57	20:23	03:49	19.4	18:19 until 01:47	Taurus
2026	Jan	29	00:00 PST	10 days	05^h04^m49^s	+27°31'18"	12:53	20:19	03:45	19.4	18:20 until 01:43	Taurus
2026	Jan	30	00:00 PST	11 days	05^h04^m34^s	+27°30'52"	12:49	20:15	03:40	19.4	18:21 until 01:38	Taurus
2026	Jan	31	00:00 PST	12 days	05^h04^m20^s	+27°30'26"	12:45	20:10	03:36	19.4	18:22 until 01:34	Taurus
2026	Feb	01	00:00 PST	13 days	05^h04^m07^s	+27°30'01"	12:41	20:06	03:32	19.4	18:23 until 01:30	Taurus
2026	Feb	02	00:00 PST	14 days	05^h03^m55^s	+27°29'37"	12:36	20:02	03:28	19.4	18:24 until 01:26	Taurus
2026	Feb	03	00:00 PST	15 days	05^h03^m44^s	+27°29'13"	12:32	19:58	03:24	19.4	18:24 until 01:22	Taurus
2026	Feb	04	00:00 PST	16 days	05^h03^m33^s	+27°28'49"	12:28	19:54	03:20	19.5	18:25 until 01:18	Taurus
2026	Feb	05	00:00 PST	17 days	05^h03^m24^s	+27°28'26"	12:24	19:50	03:16	19.5	18:26 until 01:13	Taurus
2026	Feb	06	00:00 PST	18 days	05^h03^m16^s	+27°28'04"	12:20	19:46	03:11	19.5	18:27 until 01:09	Taurus
2026	Feb	07	00:00 PST	19 days	05^h03^m08^s	+27°27'43"	12:16	19:42	03:07	19.5	18:28 until 01:05	Taurus
2026	Feb	08	00:00 PST	20 days	05^h03^m02^s	+27°27'22"	12:12	19:38	03:03	19.5	18:29 until 01:01	Taurus
2026	Feb	09	00:00 PST	21 days	05^h02^m56^s	+27°27'02"	12:08	19:34	02:59	19.5	18:30 until 00:57	Taurus
2026	Feb	10	00:00 PST	22 days	05^h02^m52^s	+27°26'43"	12:04	19:30	02:55	19.5	18:31 until 00:53	Taurus
2026	Feb	11	00:00 PST	23 days	05^h02^m48^s	+27°26'25"	12:00	19:26	02:51	19.5	18:31 until 00:49	Taurus
2026	Feb	12	00:00 PST	24 days	05^h02^m45^s	+27°26'08"	11:56	19:22	02:47	19.5	18:32 until 00:45	Taurus
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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