Ephemeris for 103P/Hartley

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 103P/Hartley
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 103P/Hartley
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
2025	Dec	31	00:00 PST	11 days	14^h09^m51^s	−16°15'40"	02:03	07:20	12:38	27.1	04:08 until 05:51	Virgo
2025	Dec	31	03:00 PST	11 days	14^h09^m54^s	−16°15'57"	02:03	07:20	12:38	27.1	04:08 until 05:51	Virgo
2025	Dec	31	06:00 PST	11 days	14^h09^m57^s	−16°16'13"	02:03	07:20	12:38	27.1	04:08 until 05:51	Virgo
2025	Dec	31	09:00 PST	11 days	14^h10^m00^s	−16°16'29"	02:03	07:20	12:38	27.1	04:08 until 05:51	Virgo
2025	Dec	31	12:00 PST	11 days	14^h10^m04^s	−16°16'45"	02:03	07:21	12:38	27.1	04:08 until 05:51	Virgo
2025	Dec	31	15:00 PST	11 days	14^h10^m07^s	−16°17'01"	02:03	07:21	12:38	27.1	04:08 until 05:51	Virgo
2025	Dec	31	18:00 PST	12 days	14^h10^m10^s	−16°17'17"	02:03	07:21	12:38	27.1	04:08 until 05:51	Virgo
2025	Dec	31	21:00 PST	12 days	14^h10^m14^s	−16°17'33"	02:03	07:21	12:38	27.1	04:09 until 05:51	Virgo
2026	Jan	01	00:00 PST	12 days	14^h10^m17^s	−16°17'49"	01:59	07:17	12:34	27.1	04:05 until 05:51	Virgo
2026	Jan	01	03:00 PST	12 days	14^h10^m20^s	−16°18'05"	02:00	07:17	12:34	27.1	04:05 until 05:51	Virgo
2026	Jan	01	06:00 PST	12 days	14^h10^m23^s	−16°18'21"	02:00	07:17	12:34	27.1	04:05 until 05:51	Virgo
2026	Jan	01	09:00 PST	12 days	14^h10^m27^s	−16°18'37"	02:00	07:17	12:34	27.1	04:05 until 05:51	Virgo
2026	Jan	01	12:00 PST	12 days	14^h10^m30^s	−16°18'52"	02:00	07:17	12:34	27.1	04:05 until 05:51	Virgo
2026	Jan	01	15:00 PST	12 days	14^h10^m33^s	−16°19'08"	02:00	07:17	12:34	27.1	04:05 until 05:51	Virgo
2026	Jan	01	18:00 PST	13 days	14^h10^m36^s	−16°19'23"	02:00	07:17	12:34	27.1	04:05 until 05:51	Virgo
2026	Jan	01	21:00 PST	13 days	14^h10^m39^s	−16°19'39"	02:00	07:17	12:34	27.1	04:05 until 05:51	Virgo
2026	Jan	02	00:00 PST	13 days	14^h10^m43^s	−16°19'54"	01:56	07:13	12:31	27.1	04:01 until 05:51	Virgo
2026	Jan	02	03:00 PST	13 days	14^h10^m46^s	−16°20'10"	01:56	07:13	12:31	27.1	04:01 until 05:51	Virgo
2026	Jan	02	06:00 PST	13 days	14^h10^m49^s	−16°20'26"	01:56	07:13	12:31	27.1	04:01 until 05:51	Virgo
2026	Jan	02	09:00 PST	13 days	14^h10^m52^s	−16°20'41"	01:56	07:13	12:31	27.1	04:02 until 05:51	Virgo
2026	Jan	02	12:00 PST	13 days	14^h10^m55^s	−16°20'56"	01:56	07:14	12:31	27.1	04:02 until 05:51	Virgo
2026	Jan	02	15:00 PST	13 days	14^h10^m58^s	−16°21'12"	01:56	07:14	12:31	27.1	04:02 until 05:51	Virgo
2026	Jan	02	18:00 PST	14 days	14^h11^m02^s	−16°21'27"	01:56	07:14	12:31	27.1	04:02 until 05:51	Virgo
2026	Jan	02	21:00 PST	14 days	14^h11^m05^s	−16°21'42"	01:57	07:14	12:31	27.1	04:02 until 05:51	Virgo
2026	Jan	03	00:00 PST	14 days	14^h11^m08^s	−16°21'57"	01:53	07:10	12:27	27.1	03:58 until 05:51	Virgo
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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