Ephemeris for C/2021 D1 (SWAN)

by Dominic Ford

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You are welcome to reproduce the data below for non-profit purposes , providing you credit In-The-Sky.org.

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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/2021 D1 (SWAN)
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/2021 D1 (SWAN)
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	26	00:00 PDT	11 days	10^h49^m05^s	−15°27'22"	10:02	15:22	20:42	34.4	Not observable	Hydra
2026	Jul	26	03:00 PDT	12 days	10^h49^m06^s	−15°27'25"	10:02	15:22	20:42	34.4	Not observable	Hydra
2026	Jul	26	06:00 PDT	12 days	10^h49^m08^s	−15°27'27"	10:03	15:22	20:42	34.4	Not observable	Hydra
2026	Jul	26	09:00 PDT	12 days	10^h49^m09^s	−15°27'31"	10:03	15:22	20:42	34.4	Not observable	Hydra
2026	Jul	26	12:00 PDT	12 days	10^h49^m11^s	−15°27'34"	10:03	15:22	20:42	34.4	Not observable	Hydra
2026	Jul	26	15:00 PDT	12 days	10^h49^m12^s	−15°27'37"	10:03	15:22	20:42	34.4	Not observable	Hydra
2026	Jul	26	18:00 PDT	12 days	10^h49^m14^s	−15°27'40"	10:03	15:22	20:42	34.4	Not observable	Hydra
2026	Jul	26	21:00 PDT	12 days	10^h49^m15^s	−15°27'43"	10:03	15:22	20:42	34.4	Not observable	Hydra
2026	Jul	27	00:00 PDT	12 days	10^h49^m16^s	−15°27'46"	09:59	15:19	20:38	34.4	Not observable	Hydra
2026	Jul	27	03:00 PDT	13 days	10^h49^m18^s	−15°27'49"	09:59	15:19	20:38	34.4	Not observable	Hydra
2026	Jul	27	06:00 PDT	13 days	10^h49^m19^s	−15°27'52"	09:59	15:19	20:38	34.4	Not observable	Hydra
2026	Jul	27	09:00 PDT	13 days	10^h49^m21^s	−15°27'55"	09:59	15:19	20:38	34.4	Not observable	Hydra
2026	Jul	27	12:00 PDT	13 days	10^h49^m22^s	−15°27'59"	09:59	15:19	20:38	34.4	Not observable	Hydra
2026	Jul	27	15:00 PDT	13 days	10^h49^m24^s	−15°28'02"	09:59	15:19	20:38	34.4	Not observable	Hydra
2026	Jul	27	18:00 PDT	13 days	10^h49^m25^s	−15°28'05"	09:59	15:19	20:38	34.4	Not observable	Hydra
2026	Jul	27	21:00 PDT	13 days	10^h49^m27^s	−15°28'08"	09:59	15:19	20:38	34.4	Not observable	Hydra
2026	Jul	28	00:00 PDT	13 days	10^h49^m28^s	−15°28'12"	09:55	15:15	20:35	34.4	Not observable	Hydra
2026	Jul	28	03:00 PDT	14 days	10^h49^m30^s	−15°28'15"	09:55	15:15	20:35	34.4	Not observable	Hydra
2026	Jul	28	06:00 PDT	14 days	10^h49^m31^s	−15°28'18"	09:55	15:15	20:35	34.4	Not observable	Hydra
2026	Jul	28	09:00 PDT	14 days	10^h49^m33^s	−15°28'22"	09:55	15:15	20:35	34.4	Not observable	Hydra
2026	Jul	28	12:00 PDT	14 days	10^h49^m34^s	−15°28'25"	09:55	15:15	20:35	34.4	Not observable	Hydra
2026	Jul	28	15:00 PDT	14 days	10^h49^m36^s	−15°28'29"	09:55	15:15	20:35	34.4	Not observable	Hydra
2026	Jul	28	18:00 PDT	14 days	10^h49^m37^s	−15°28'32"	09:55	15:15	20:35	34.4	Not observable	Hydra
2026	Jul	28	21:00 PDT	14 days	10^h49^m39^s	−15°28'36"	09:55	15:15	20:35	34.4	Not observable	Hydra
2026	Jul	29	00:00 PDT	14 days	10^h49^m40^s	−15°28'39"	09:51	15:11	20:31	34.4	Not observable	Hydra
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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