Messier by Date

Here we present the Messier catalog in the order of "top date" and it's valid for time 0.00. That is the moment in which you have less spanning atmosphere and less light pollution. The dates shown have the same meaning of Jun 21 for the Sun in northern hemisphere, that's the day in which the Sun is at the higher point in the sky. For example, if you want look for M45 - Pleiades (Tau) at their best, you must choose Nov 24 (time 0.00). Time 0.00 is a datum-point but, as explained in Constellation Time Table, you can find the Object in the same position the day after 4 minutes earlier (or the day before four minutes later) and so on.
Any case don't care: even if the dates are astronomically accurate there is no substantial difference seven days earlier or later.

M	NGC	Const.	Type	R.A.	DEC.	Magn.	Dimension arc minutes	Dist. L.Y.	Top date
M41	2287	CMa	Open Cluster	06 46.0	-20 44	4.6	38.0	2.300	Jan 9
M50	2323	Mon	Open Cluster	07 03.2	-08 20	6.3	16.0	3.000	Jan 13
M47	2422	Pup	Open Cluster	07 36.6	-14 30	5.2	30.0	1.600	Jan 21
M93	2447	Pup	Open Cluster	07 44.6	-23 52	6.0	22.0	3.600	Jan 23
M46	2437	Pup	Open Cluster	07 41.8	-14 49	6.0	27.0	5.400	Jan 23
M48	2548	Hya	Open Cluster	08 13.8	-05 48	5.5	54.0	2.000	Jan 31
M44	2632	Cnc	Open Cluster	08 40.1	+19 59	3.7	95.0	520	Feb 6
M67	2682	Cnc	Open Cluster	08 50.4	+11 49	6.1	30.0	2.700	Feb 9
M81	3031	UMa	Spiral Galaxy	09 55.6	+69 04	6.9	21x10	4.600.000	Feb 25
M82	3034	UMa	Irregular Galaxy	09 55.8	+69 41	8.4	9x4	17.000.000	Feb 25
M96	3368	Leo	Spiral Galaxy	10 46.8	+11 49	9.2	6x4	26.400.000	Mar 9
M95	3351	Leo	Spiral Galaxy	10 44.0	+11 42	9.7	4.4x3.3	26.400.000	Mar 9
M105	3379	Leo	Elliptical Galaxy	10 47.8	+12 35	9.3	2.0	26.400.000	Mar 10
M97	3587	UMa	Planetary Nebula	11 14.8	+55 01	9.9	3.4x3.3	1.300	Mar 16
M108	3556	UMa	Spiral Galaxy	11 11.5	+55 40	10.0	8x1	45.000.000	Mar 16
M65	3623	Leo	Spiral Galaxy	11 18.9	+13 05	9.3	8x1.5	23.800.000	Mar 18
M66	3627	Leo	Spiral Galaxy	11 20.2	+12 59	8.9	8x2.5	21.500.000	Mar 18
M109	3992	UMa	Spiral Galaxy	11 57.6	+53 23	9.8	7x4	51.000.000	Mar 27
M98	4192	Com	Spiral Galaxy	12 13.8	+14 54	10.1	9.5x3.2	54.800.000	Apr 1
M100	4321	Com	Spiral Galaxy	12 22.9	+15 49	9.3	7x6	54.800.000	Apr 1
M99	4254	Com	Spiral Galaxy	12 18.8	+14 25	9.9	5.4x4.8	54.800.000	Apr 1
M61	4303	Vir	Spiral Galaxy	12 21.9	+04 28	9.7	6x5.5	54.800.000	Apr 2
M106	4258	CVn	Spiral Galaxy	12 19.0	+47 18	8.4	19x8	22.200.000	Apr 2
M40	Win4	UMa	Binary star	12 22.4	+58 05	8.4	0.8	510	Apr 3
M84	4374	Vir	Lenticular Galaxy	12 25.1	+12 53	9.1	5.0	54.800.000	Apr 3
M87	4486	Vir	Elliptical Galaxy	12 30.8	+12 24	8.6	7.0	54.800.000	Apr 4
M85	4382	Com	Lenticular Galaxy	12 25.4	+18 11	9.1	7.1x5.2	54.800.000	Apr 4
M49	4472	Vir	Elliptical Galaxy	12 29.8	+08 00	8.4	9x7.5	54.800.000	Apr 4
M86	4406	Vir	Lenticular Galaxy	12 26.2	+12 57	8.9	7.5x5.5	54.800.000	Apr 4
M89	4552	Vir	Elliptical Galaxy	12 35.7	+12 33	9.8	4.0	54.800.000	Apr 6
M88	4501	Com	Spiral Galaxy	12 32.0	+14 25	9.6	7x4	54.800.000	Apr 6
M91	4548	Com	Spiral Galaxy	12 35.4	+14 30	10.2	5.4x4.4	17.600.000	Apr 6
M90	4569	Vir	Spiral Galaxy	12 36.8	+13 10	9.5	9.5x4.5	54.800.000	Apr 6
M58	4579	Vir	Spiral Galaxy	12 37.7	+11 49	9.7	5.5x4.5	54.800.000	Apr 7
M59	4621	Vir	Elliptical Galaxy	12 42.0	+11 39	9.6	5x3.5	54.800.000	Apr 7
M104	4594	Vir	Spiral Galaxy	12 40.0	-11 37	8.0	9x4	55.400.000	Apr 7
M68	4590	Hya	Globular Cluster	12 39.5	-26 45	7.8	12.0	32.300	Apr 7
M60	4649	Vir	Elliptical Galaxy	12 43.7	+11 33	8.8	7x6	54.800.000	Apr 8
M94	4736	CVn	Spiral Galaxy	12 50.9	+41 07	8.2	7x3	14.500.000	Apr 10
M64	4826	Com	Spiral Galaxy	12 56.7	+21 41	8.5	9.3x5.4	13.400.000	Apr 12
M63	5055	CVn	Spiral Galaxy	13 15.8	+42 02	8.6	10x6	23.500.000	Apr 16
M53	5024	Com	Globular Cluster	13 12.9	+18 10	7.6	12.6	56.400	Apr 16
M51	5194	CVn	Spiral Galaxy	13 29.9	+47 12	8.4	11x7	25.100.000	Apr 20
M83	5236	Hya	Spiral Galaxy	13 37.0	-29 52	7.6	11x10	22.500.000	Apr 21
M3	5272	CVn	Globular Cluster	13 42.2	+28 23	6.2	16.2	30.600	Apr 23
M101	5457	UMa	Spiral Galaxy	14 03.2	+54 21	7.9	22.0	17.600.000	Apr 28
M102 ?	5866	Dra	Lenticular Galaxy	15 06.5	+55 46	9.9	5.2x2.3	40.000.000	May 14
M5	5904	Ser	Globular Cluster	15 18.6	+02 05	5.6	17.4	22.800	May 17
M80	6093	Sco	Globular Cluster	16 17.0	-22 59	7.3	8.9	27.400	Jun 1
M4	6121	Sco	Globular Cluster	16 23.6	-26 32	5.6	26.3	6.800	Jun 3
M107	6171	Oph	Globular Cluster	16 32.5	-13 03	7.9	10.0	19.600	Jun 5
M13	6205	Her	Globular Cluster	16 41.7	+36 28	5.8	16.6	22.800	Jun 7
M12	6218	Oph	Globular Cluster	16 47.2	-01 57	6.7	14.5	17.600	Jun 9
M10	6254	Oph	Globular Cluster	16 57.1	-04 06	6.6	15.1	13.400	Jun 11
M62	6266	Oph	Globular Cluster	17 01.2	-30 07	6.5	14.1	21.500	Jun 13
M19	6273	Oph	Globular Cluster	17 02.6	-26 16	6.8	13.5	27.100	Jun 13
M92	6341	Her	Globular Cluster	17 17.1	+43 08	6.4	11.2	26.400	Jun 16
M9	6333	Oph	Globular Cluster	17 19.2	-18 31	7.7	9.3	26.400	Jun 17
M14	6402	Oph	Globular Cluster	17 37.6	-03 15	7.6	11.7	27.400	Jun 22
M6	6405	Sco	Open Cluster	17 40.1	-32 13	5.3	25.0	2.000	Jun 22
M23	6494	Sgr	Open Cluster	17 56.8	-19 01	6.9	27.0	2.150	Jun 27
M7	6475	Sco	Open Cluster	17 53.9	-34 49	4.1	80.0	800	Jun 27
M20	6514	Sgr	Diffuse Nebula	18 02.6	-23 02	9.0	28.0	3.300	Jun 28
M8	6523	Sgr	Diffuse Nebula	18 03.8	-24 23	6.0	90x40	3.900	Jun 28
M21	6531	Sgr	Open Cluster	18 04.6	-22 30	6.5	13.0	4.250	Jun 28
M16	6611	Ser	Diffuse Nebula	18 18.8	-13 47	6.4	7.0	7.000	Jul 2
M18	6613	Sgr	Open Cluster	18 19.9	-17 08	7.5	9.0	4.900	Jul 2
M24	6603	Sgr	Milky Way Patch	18 16.9	-18 29	4.6	90.0	10.000	Jul 3
M17	6618	Sgr	Diffuse Nebula	18 20.8	-16 11	7.0	11.0	5.000	Jul 3
M28	6626	Sgr	Globular Cluster	18 24.5	-24 52	6.8	11.2	17.900	Jul 4
M69	6637	Sgr	Globular Cluster	18 31.4	-32 21	7.6	7.1	26.700	Jul 5
M25	IC4725	Sgr	Open Cluster	18 31.6	-19 15	6.5	40.0	2.000	Jul 6
M22	6656	Sgr	Globular Cluster	18 36.4	-23 54	5.1	24.0	10.100	Jul 7
M70	6681	Sgr	Globular Cluster	18 43.2	-32 18	7.9	7.8	28.000	Jul 8
M26	6694	Sct	Open Cluster	18 45.2	-09 24	8.0	15.0	5.000	Jul 9
M57	6720	Lyr	Planetary Nebula	18 53.6	+33 02	8.8	1.4x1.0	1.960	Jul 11
M11	6705	Sct	Open Cluster	18 51.1	-06 16	6.3	14.0	6.000	Jul 11
M54	6715	Sgr	Globular Cluster	18 55.1	-30 29	7.6	9.1	82.800	Jul 11
M56	6779	Lyr	Globular Cluster	19 16.6	+30 11	8.3	7.1	31.600	Jul 17
M55	6809	Sgr	Globular Cluster	19 40.0	-30 58	6.3	19.0	16.600	Jul 23
M71	6838	Sge	Globular Cluster	19 53.8	+18 47	8.2	7.2	11.700	Jul 26
M27	6853	Vul	Planetary Nebula	19 59.6	+22 43	7.4	8.0x5.7	1.250	Jul 28
M75	6864	Sgr	Globular Cluster	20 06.1	-21 55	8.5	6.0	57.700	Jul 29
M29	6913	Cyg	Open Cluster	20 23.9	+38 32	7.1	7.0	4.000	Aug 3
M72	6981	Aqr	Globular Cluster	20 53.5	-12 32	9.3	5.9	52.800	Aug 10
M73	6994	Aqr	Asterism	20 58.9	-12 38	9.0	2.8	-	Aug 12
M39	7092	Cyg	Open Cluster	21 32.2	+48 26	5.2	32.0	825	Aug 20
M2	7089	Aqr	Globular Cluster	21 33.5	-00 49	6.5	12.9	36.200	Aug 20
M15	7078	Peg	Globular Cluster	21 30.0	+12 10	6.2	12.3	32.600	Aug 20
M30	7099	Cap	Globular Cluster	21 40.4	-23 11	7.2	11.0	24.800	Aug 22
M52	7654	Cas	Open Cluster	23 24.2	+61 35	7.3	13.0	5.000	Sep 18
M31	224	And	Spiral Galaxy	00 42.7	+41 16	4.2	178x63	2.380.000	Oct 8
M32	221	And	Elliptical Galaxy	00 42.7	+40 52	8.1	8x6	2.380.000	Oct 8
M110	205	And	Elliptical Galaxy	00 40.4	+41 41	8.5	17x10	2.380.000	Oct 8
M33	598	Tri	Spiral Galaxy	01 33.9	+30 39	5.7	73x45	2.184.000	Oct 20
M103	581	Cas	Open Cluster	01 33.2	+60 42	7.4	6.0	8.000	Oct 20
M74	628	Psc	Spiral Galaxy	01 36.7	+15 47	9.4	10.2x9.5	31.600.000	Oct 21
M76	650	Per	Planetary Nebula	01 42.4	+51 34	10.1	2.7x1.8	3.400	Oct 23
M34	1039	Per	Open Cluster	02 42.0	+42 47	5.5	35.0	1.400	Nov 7
M77	1068	Cet	Spiral Galaxy	02 42.7	-00 01	8.9	7x6	81.500.000	Nov 7
M45	-	Tau	Open Cluster	03 47.0	+24 07	1.2	110.0	380	Nov 24
M79	1904	Lep	Globular Cluster	05 24.5	-24 33	7.7	8.7	41.100	Dec 18
M38	1912	Aur	Open Cluster	05 28.4	+35 50	7.4	21.0	4.200	Dec 19
M1	1952	Tau	Supernova Remnant	05 34.5	+22 01	8.4	6x4	6.300	Dic 20
M36	1960	Aur	Open Cluster	05 36.1	+34 08	6.3	12.0	4.100	Dec 21
M43	1982	Ori	Diffuse Nebula	05 35.6	-05 16	9.0	20x15	1.600	Dec 21
M42	1976	Ori	Diffuse Nebula	05 35.4	-05 27	4.0	85x60	1.600	Dec 21
M78	2068	Ori	Diffuse Nebula	05 46.7	+00 03	8.3	8x6	1.600	Dec 24
M37	2099	Aur	Open Cluster	05 52.4	+32 33	6.2	24.0	4.400	Dec 25
M35	2168	Gem	Open Cluster	06 08.9	+24 20	5.3	28.0	2.800	Dec 30

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