Ephemeris for C/2021 O3 (PANSTARRS)

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All times computed for Cambridge (latitude 42.38°; longitude -71.11°) and expressed in Cambridge time.

Ephemeris for C/2021 O3 (PANSTARRS)
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 O3 (PANSTARRS)
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	May	09	20:00 EDT	12 days	19^h41^m50^s	+35°58'31"	20:25	05:16	14:07	22.7	23:08 until 04:09	Cygnus
2025	May	10	20:00 EDT	13 days	19^h41^m40^s	+36°02'06"	20:20	05:12	14:03	22.7	23:03 until 04:07	Cygnus
2025	May	11	20:00 EDT	14 days	19^h41^m30^s	+36°05'38"	20:16	05:08	14:00	22.7	22:59 until 04:06	Cygnus
2025	May	12	20:00 EDT	15 days	19^h41^m19^s	+36°09'08"	20:11	05:04	13:56	22.7	22:55 until 04:04	Cygnus
2025	May	13	20:00 EDT	15 days	19^h41^m08^s	+36°12'36"	20:07	05:00	13:52	22.7	22:51 until 04:03	Cygnus
2025	May	14	20:00 EDT	16 days	19^h40^m57^s	+36°16'00"	20:02	04:55	13:49	22.7	22:46 until 04:02	Cygnus
2025	May	15	20:00 EDT	17 days	19^h40^m45^s	+36°19'23"	19:58	04:51	13:45	22.7	22:42 until 04:00	Cygnus
2025	May	16	20:00 EDT	18 days	19^h40^m33^s	+36°22'42"	19:53	04:47	13:41	22.7	22:37 until 03:59	Cygnus
2025	May	17	20:00 EDT	19 days	19^h40^m20^s	+36°25'59"	19:48	04:43	13:38	22.7	22:33 until 03:57	Cygnus
2025	May	18	20:00 EDT	20 days	19^h40^m07^s	+36°29'13"	19:44	04:39	13:34	22.7	22:29 until 03:56	Cygnus
2025	May	19	20:00 EDT	21 days	19^h39^m54^s	+36°32'24"	19:39	04:35	13:30	22.7	22:24 until 03:55	Cygnus
2025	May	20	20:00 EDT	22 days	19^h39^m40^s	+36°35'32"	19:35	04:31	13:26	22.7	22:20 until 03:54	Cygnus
2025	May	21	20:00 EDT	23 days	19^h39^m26^s	+36°38'36"	19:30	04:26	13:23	22.7	22:16 until 03:52	Cygnus
2025	May	22	20:00 EDT	24 days	19^h39^m11^s	+36°41'38"	19:26	04:22	13:19	22.7	22:11 until 03:51	Cygnus
2025	May	23	20:00 EDT	25 days	19^h38^m57^s	+36°44'37"	19:21	04:18	13:15	22.7	22:07 until 03:50	Cygnus
2025	May	24	20:00 EDT	27 days	19^h38^m41^s	+36°47'32"	19:16	04:14	13:11	22.7	22:03 until 03:49	Cygnus
2025	May	25	20:00 EDT	28 days	19^h38^m26^s	+36°50'24"	19:12	04:10	13:08	22.7	21:58 until 03:48	Cygnus
2025	May	26	20:00 EDT	29 days	19^h38^m10^s	+36°53'12"	19:07	04:05	13:04	22.7	21:54 until 03:47	Cygnus
2025	May	27	20:00 EDT	01 days	19^h37^m54^s	+36°55'57"	19:03	04:01	13:00	22.7	21:50 until 03:46	Cygnus
2025	May	28	20:00 EDT	02 days	19^h37^m37^s	+36°58'39"	18:58	03:57	12:56	22.7	21:45 until 03:45	Cygnus
2025	May	29	20:00 EDT	03 days	19^h37^m20^s	+37°01'17"	18:54	03:53	12:52	22.7	21:41 until 03:44	Cygnus
2025	May	30	20:00 EDT	04 days	19^h37^m03^s	+37°03'51"	18:49	03:49	12:48	22.7	21:37 until 03:43	Cygnus
2025	May	31	20:00 EDT	05 days	19^h36^m46^s	+37°06'22"	18:44	03:44	12:44	22.7	21:39 until 03:42	Cygnus
2025	Jun	01	20:00 EDT	06 days	19^h36^m28^s	+37°08'48"	18:40	03:40	12:41	22.7	21:40 until 03:42	Cygnus
2025	Jun	02	20:00 EDT	07 days	19^h36^m10^s	+37°11'11"	18:35	03:36	12:37	22.7	21:41 until 03:41	Cygnus
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

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