Documento sin título

Object type:
oc: open cluster, gc: globular cluster, gn: galactic nebulae, pn: planetary nebulae, eg: external galaxy

*MZ-OAG nº**	NGC	TYPE	DSS -	DSS +	OAG_CCD_2019+OBSERVATIONS * only visual	Menzel's Guide notes 1960's
	Table 12
1	129	oc	DSS	DSS	TOB_R-50f4
2	133	oc	DSS	DSS	TOB_R-50f4
3	146	oc	DSS	DSS	TOB_R-50f4
4	457	oc	DSS	DSS	TOB_R-50f4	oc 457 is richer than the average and one of the brightest in the sky
5	559	oc	DSS	DSS	TOB_R-50f4
6	581	oc	DSS	DSS	TOB_R-50f4	oc 581 also know as M103, is fan-shaped. It lies at a distance of approimately 6200 ly.
7	654	oc	DSS	DSS	TOB_R-50f4	oc 654 and oc 7654 (also called M52) are somewhat triangular in shape
8	663	oc	DSS	DSS	TOB_R-50f4
9	752	oc	DSS	DSS	TOB_R-50f4
10	869	oc	DSS	DSS	TOB_R-50f4	The pair 869 an 884 in Perseus, also carry the designations h and Chi, respectively. The naked eye can glimpse the condensations of the Milky Way as hazy patches. These cluster, magnificient in a small telescope, lie at the estimated disitances of 3.900 an 4.900 ly
11	884	oc	DSS	DSS	TOB_R-50f4	The pair 869 an 884 in Perseus, also carry the designations h and Chi, respectively. The naked eye can glimpse the condensations of the Milky Way as hazy patches. These cluster, magnificient in a small telescope, lie at the estimated disitances of 3.900 an 4.900 ly
12	1039	oc	DSS	DSS	TOB_R-50f4	oc 1039 on the boundary of Perseus, also designated M 34, appears to the naked eye as a hazy object. Its distance is approximately 1.500 ly
13	Pleiades	oc	DSS	DSS	TOB_R-50f4	The naked eye can see 6, possibly 7, stars in Pleaides, arranged roughly in the forma of a tiny dipper. Even a small telescope will greatly increse the number of stars visible, up to limit of mnore than 100. Wisp of nebulosity cover the group, especially bright in the neighborhood of the luminous stars. The nebulous backgraound show cleary on long-exposure photographs, but you will probably not be able to see it visually. The star cluster is 430 light-years away
14	1528	oc	DSS	DSS	TOB_R-50f4	To observe oc 1528 most effectively, use low telescope power
15	Hyades	oc	DSS	DSS	TOB_R-50f4	The Hyades contains fewer stars than the Pleiades and also is less compact. Use low power to see this extended V-shaped group, wich forms the head of Taurus. The Hyades are approximately 130 ly distant.
	IC 1590	oc			TOB_R-50f4
	1647	oc			TOB_R-50f4
16	1746	oc	DSS	DSS	TOB_R-50f4
17	1912	oc	DSS	DSS	TOB_R-50f4	oc 1912 , also known as M38, is a beautifuly oval group of stars at a distance of about 3.000 ly.
18	1960	oc	DSS	DSS	TOB_R-50f4	Nearby of oc 1912, is oc 1960 (M 36), a beautiful group 2.600 ly distant.
	2099	oc			TOB_R-50f4
19	2168	oc	DSS	DSS	TOB_R-50f4	oc 2168 (M 35) is a fine naked-eye cluster
	2175	oc			TOB_R-50f4
	2244	oc			TOB_R-50f4
20	2287	oc	DSS	DSS	TOB_R-50f4	oc 2287 (M 41) is one of the finest in the sky and readly resolvable with medium optical power
21	2301	oc	DSS	DSS	TOB_R-50f4	oc 2301 consists of several overlapping groups
22	2323	oc	DSS	DSS	TOB_R-50f4	oc 2323 (M 50) is rich
23	2360	oc	DSS	DSS	TOB_R-50f4	oc 2360 provide splendid fields observable with relatively low power
24	2422	oc	DSS	DSS	TOB_R-50f4	oc 2422 provide splendid fields observable with relatively low power
25	2423	oc	DSS	DSS
26	Mel 71	oc	DSS	DSS
27	2439	oc	DSS	DSS
28	2437	oc	DSS	DSS	TOB_R-50f4	oc 2437 (M 46) is somewhat fainter but contiene more stars. Is specially notable
29	2447	oc	DSS	DSS		oc 2447 (M 93) also has a rich field
30	2477	oc	DSS	DSS		oc 2477 is one of the most beautiful clusters in the area, with its 300 stars lying at a distance of 3.300 ly.
31	2482	oc	DSS	DSS
32	2516	oc	DSS	DSS		oc 2516 is in extremely rich fields: Merit optical inspection.
33	2539	oc	DSS	DSS		oc 2539 is rich in stars. Merit optical inspection.
34	2547	oc	DSS	DSS		oc 2547 is in extremely rich fields. Merit optical inspection.
35	2548	oc	DSS	DSS	TOB_R-50f4	oc 2548 is fairly, bright and rich. Merit optical inspection.
36	2567	oc	DSS	DSS
37	2632	oc	DSS HVD	DSS HVD	TOB_R-50f4	oc 2632 (M 44) is also termed Praesepe or the Beehived. Althoug te nakd eye sees the cluster as a hazy patch, a small telescope or binocular will resolve it into its component stars. Its estimated distance is 520 ly.
38	2682	oc	DSS	DSS	TOB_R-50f4	oc 2687 (M 67) requieres a larger telescope. The estimated distante is 2.900 ly
39	3114	oc	DSS	DSS		oc 3114 is in extremely rich fields. Merit optical inspection.
40	3293	oc	DSS	DSS		oc 3293 is in extremely rich fields. Merit optical inspection.
41	3532	oc	DSS	DSS		oc 3532 is in exttremely rich fields (at an estimated distance of 1.300 ly)
42	I 2714	oc	DSS	DSS		oc I 2714 is in extremely rich fields. Merit optical inspection.
43	Mel 105	oc	DSS	DSS		oc Mel 105 is in extremely rich fields. Merit optical inspection.
44	3766	oc	DSS	DSS
45	4349	oc	DSS	DSS
46	Mel 111	oc	DSS	DSS	TOB_R-50f4	Mel 111, the official designation for the Coma Berenices cluster, often omitted from catalogs because of its large size. Neverthless, this cluster is a true stellar family. Its appears best under extremely low power, preferably with field glass or binocular.
47	4755	oc	DSS	DSS		oc 4755 (Kappa Cru) is particulary notable. This naked-eye object lies at an estimated distance of 3.300 ly.
48	5316	oc	DSS	DSS
49	5617	oc	DSS	DSS
50	5822	oc	DSS	DSS	TOB-XMI_CDK-432f6,8_SSO	oc 5822 and oc 5823 are interesting, especially because of the difference in size, the former being much the larger
51	5823	oc	DSS	DSS	TOB-XMI_CDK-432f6,8_SSO	oc 5823 and oc 5822 and are interesting, especially because of the difference in size, the former being much the larger
52	6067	oc	DSS	DSS	TOB_CDK-432f6,8_SSO
53	6124	oc	DSS	DSS		oc 6124 is quite rich
54	6152	oc	DSS	DSS	TOB_CDK-432f6,8_SSO
55	H 11	oc	DSS	DSS
56	6192	oc	DSS	DSS
	6208	oc			TOB-XMI_CDK-432f6,8_SSO
57	6231	oc	DSS	DSS		oc 6231 an H 12 make an interesting pair, almost a double cluster, though they do not resemble stellar clusters
58	H 12	oc	DSS	DSS		H 12 and oc 6231 make an interesting pair, almost a double cluster, though they do not resemble stellar clusters
59	I 4651	oc	DSS	DSS	TOB_CDK-432f6,8_SSO	oc I 4651 is rich and interesting
	Rup 123	oc			TOB-XMI_CDK-432f6,8_SSO
60	6405	oc	DSS	DSS		oc 6406 (M 6) is a beautiful object in a small telescope
	6404	oc			TOB_R-50f4
61	6451	oc	DSS	DSS
62	6475	oc	DSS	DSS		oc 6475 (M 7) is a beautiful object in a small telescope
63	H 18	oc	DSS	DSS
64	6494	oc	DSS	DSS		oc 6494 (M 23) is a rich cluster
65	6531	oc	DSS	DSS		oc 6531 (M 21) is a rich cluster, lies at an estimated distance of 2.900 ly.
	6611	oc			TOB_R-50f4
	6618	oc			TOB_R-50f4
66	6633	oc	DSS	DSS	TOB_R-50f4	oc 6633 is easily resolved by relatively low power
67	I 4725	oc	DSS	DSS		oc I 4725 (M 25) falls in a region of excepcional beauty
68	I 4756	oc	DSS	DSS	TOB_R-50f4	oc I 4756 is easily resolved by relatively low power
69	6705	oc (gc)	DSS	DSS	TOB_R-50f4 XMI_SC_250f10	OC 6705 (M 11) is magnificent in a large telescope. It lies at distance of 4.300 ly
70	6755	oc	DSS	DSS	TOB_R-50f4
71	6838	oc	DSS	DSS	TOB_R-50f4	oc 6838 (M 71) is rich in stars, despite its relatively small diameter. Is a magnificent object.
72	6866	oc	DSS	DSS	TOB_R-50f4
	6871	oc			TOB_R-50f4
	6913	oc			XMI_SC_250f10
73	7209	oc	DSS	DSS	TOB_R-50f4	oc 7209 is by no means an excepcional object though a small telescope will resolve it.
74	7380	oc	DSS	DSS	TOB_R-50f4
75	7654	oc	DSS	DSS	TOB_R-50f4	oc 654 and oc 7654 (also called M52) are somewhat triangular in shape
	Table 13
76	104	gc	DSS	DSS	(TOB_7x50mm) (TOB_SC-90mm)	gc 104 is a unusually large and bright globular cluster (also known as 47 Tuc)
77	288	gc	DSS	DSS		gc 288 is relatively uninteresting
78	362	gc	DSS	DSS	(TOB_7x50mm) (TOB_SC-90mm)
79	1261	gc	DSS	DSS
80	1851	gc	DSS	DSS		gc 1851, though barely sisible to the naked eye, is an interesting objetc in the telescope
81	1904	gc	DSS	DSS
82	2298	gc	DSS	DSS
83	2808	gc	DSS	DSS		gc 2808 is a faint naked eye object.
84	3201	gc	DSS	DSS
85	4147	gc	DSS	DSS	TOB_R-50f4
86	4372	gc	DSS	DSS
87	4590	gc	DSS	DSS		gc 4590 (M 68) is relatively bright, thoug small and highly concentrated.
88	4833	gc	DSS	DSS
89	5024	gc	DSS	DSS	TOB_R-50f4	gc 5024 (M 53) is considerably fainter, with a magnitude of 6.9
90	5053	gc	DSS	DSS	TOB_R-50f4	gc 5053 is of the 10th magnitude and have no Messier number
91	5139	gc	DSS	DSS	(TOB_7x50mm) (SC-90mm)	(Omega Cen)
92	5272	gc	DSS	DSS	XMI_SC_250f10	gc 5272 (M 3)..its total magnitude, 4,5 makes it one of the brightest of this objects in the sky.
93	5286	gc	DSS	DSS
94	5466	gc	DSS	DSS		gc 5466 is of the 10th magnitude and have no Messier number
95	5634	gc	DSS	DSS	TOB_R-50f4	gc 5634 is out standing
96	5824	gc	DSS	DSS
97	5897	gc	DSS	DSS		gc 5897 is only slightly less brillant tanh gc 6093 (M 80)
98	5904	gc	DSS	DSS	TOB_R-50f4 XMI_SC_250f10	gc 5904 (M 5) is one of the finest of such objects in the sky, excelled only by 47 Tuc and Omega Cen in the southern sky.
99	5927	gc	DSS	DSS
100	5986	gc	DSS	DSS		gc 5986 is only slightly less brillant tanh gc 6093 (M 80)
101	6093	gc	DSS	DSS
102	6101	gc	DSS	DSS
103	6121	gc	DSS	DSS		gc 6121 (M 4) is excellent object for telescopic observation
104	6144	gc	DSS	DSS
105	6139	gc	DSS	DSS
106	6171	gc	DSS	DSS	TOB_R-50f4	gc 6171 is faint and smaller
107	6205	gc	DSS	DSS	TOB_R-50f4 XMI_SC_250f10	gc 6206 ( M 13) is bay far the most spectacular. This is the famous Hercules clusterm faintly visible to the naekd eye as a fuzzy star of the 4th magnitude.
108	6218	gc	DSS	DSS	TOB_R-50f4	gc 6218 (M 12) are also outstanding object in the telescope
109	6229	gc	DSS	DSS	TOB_R-50f4	gc 6229 is faint compared with is neighbor, gc 6341 (also known as M92). An this one, in turn, is much fainter than the spectacular gc 62015 (M 13). Smaller telescopes whow an elarged hazy patch, with a condesation of brightness toward the center, instead of the individual stars. gc 6229, is almost of the 10th magnitude and eight or ten times smaller than the other two (M 13 and M 92)
110	6254	gc	DSS	DSS	TOB_R-50f4	gc 6254 (M 10) are also outstanding object in the telescope
111	6266	gc	DSS	DSS		gc 6266 (M 62) is excellent object for telescopic observation
112	6273	gc	DSS	DSS		gc 6273 (M 19) is excellent object for telescopic observation
113	6284	gc	DSS	DSS
114	6287	gc	DSS	DSS
115	6293	gc	DSS	DSS
116	6304	gc	DSS	DSS
117	6316	gc	DSS	DSS
118	6341	gc	DSS	DSS	TOB_R-50f4	gc 6341 (M 92) is about a magnitude fainter than M 13, though still a satisfactory object for small telescope.
119	6333	gc	DSS	DSS		gc 6333 (M 9) is fairly faint, and gc 6356 make an interesting pair, with the former more conspicuous.
120	6356	gc	DSS	DSS		gc 6356 and gc 6333 make an interesting pair, with the former more conspicuous.
121	6352	gc	DSS	DSS
122	6362	gc	DSS	DSS
123	6388	gc	DSS	DSS
124	6397	gc	DSS	DSS		gc 6397 is a naked eye globular cluster of exceptional brillance and large.
125	6402	gc	DSS	DSS
126	6441	gc	DSS	DSS
127	6496	gc	DSS	DSS
128	6541	gc	DSS	DSS		gc 6397 is a naked eye globular cluster of exceptional brillance
129	6553	gc	DSS	DSS
130	6569	gc	DSS	DSS
131	6584	gc	DSS	DSS
132	6624	gc	DSS	DSS
133	6626	gc	DSS	DSS		gc 6626 (M28) is slightly faint, but interesting object nevertheless
134	6637	gc	DSS	DSS		gc 66370 (M69) is slightly faint, but interesting object nevertheless
135	6638	gc	DSS	DSS
136	6652	gc	DSS	DSS
137	6656	gc	DSS	DSS		gc 6656 (M 22) shares the honor with gc 59904 (M 5) of being the brightest globular clusters visible to observers in the Northern Hemisphere.
138	6681	gc	DSS	DSS		gc 6681(M 70)is among of the more interesting globular cluster in the area
139	6712	gc	DSS	DSS	TOB_R-50f4	gc 6712 is fairly faint
140	6715	gc	DSS	DSS		gc 6715 (M 54) is among of the more interesting globular cluster in the area
141	6723	gc	DSS	DSS		gc 6723 is among of the more interesting globular cluster in the area
142	6752	gc	DSS	DSS		gc 6397 is a naked eye globular cluster of exceptional brillance
143	6779	gc	DSS	DSS	TOB_R-50f4 XMI_SC_250f10	gc 6779 (M 56) is small and highly concentrated
144	6809	gc	DSS	DSS		gc 6809 (M 55) is an outstanding object, readily visible to the naked eye interesting in a small telescope. In a telescope large enough to resolve the components stars, the cluster is magnificent
145	6833	gc	DSS	DSS
146	6864	gc	DSS	DSS		gc 6864 (M 75) is faint
147	6934	gc	DSS	DSS
148	6981	gc	DSS	DSS		gc 6981 (M 72) is small and faint, a difficult object without large telescopes.
149	7078	gc	DSS	DSS		gc 7078 (M 15) is cleary visible to the naked eye. The smallest optical aid show them hazy patches, condensed toward the center. Is amongt the brightest object of this class.
150	7089	gc	DSS	DSS		gc 7089 (M 2) is cleary visible to the naked eye. The smallest optical aid show them hazy patches, condensed toward the center. Is amongt the brightest object of this class.
151	7099	gc	DSS	DSS		gc 7099 (M 30) is readily visible in a small telescope, thought difficult to resolve into star components.
	Table 14
152	281	gn	DSS	DSS	TOB_R-50f4	gn 281 lies 1º east of Alfa Cas
153	IC 59-63	gn	DSS	DSS	TOB_R-50f4	gn I 59 near Gamma Cas, consists of two fans pointing northwest.
154	IC 1805	gn	DSS	DSS	TOB_R-50f4	gn I 1805 and gn I 1848 probably have a star clusters associated with them
155	IC 1848	gn	DSS	DSS	TOB_R-50f4	gn I 1805 and gn I 1848 probably have a star clusters associated with them
156	0341.1	gn	DSS	DSS
157	1432	gn	DSS	DSS
158	0343.0	gn	DSS DSS	DSS DSS
159	1435	gn	DSS	DSS
160	0344.5	gn	DSS DSS	DSS DSS
161	1499	gn	DSS	DSS	TOB_R-50f4
162	IC 2118	gn	DSS	DSS	TOB_R-50f4	gn I 2118 is the Witch Head Nebula.
163	IC 405	gn	DSS	DSS	TOB_R-50f4	gn I 405 is sometimes called the Falming Star
164	0519.1	gn	DSS	DSS
165	I 410	gn	DSS	DSS	TOB_R-50f4	gn I 410 is a combined cluster and nebulosity
166	0520.0	gn	DSS DSS	DSS DSS
167	0522.5	gn	DSS DSS	DSS DSS
168	1952	gn(pn)	DSS	DSS	TOB_R-50f4 XMI_SC_250f10	gn 1952 (or M 1), one of the most famous of all these objects, should probably be designated as a planetary. Termed the Crab Nebula, because of its peculiar structure, this is evidently the debris from a nova, a star whose explosion, the Chinese recorded in A.D.1054.
169	0532.4	gn	DSS DSS	DSS DSS
170	1976	gn	DSS	DSS	TOB_R-50f4	gn 1976 (M 42), the Great Nebula in Orion, a magnificent luminous cloud surronding Theta-1 Ori, northern star in Orion's dagger, in plainly visible to the naked eye as a hazy object. Even the smallest optical aid reveals the wispy nebula structure...This nebyka is a magnificient object in larger telescopes, wich show that some of the structure is due to clouds of obscuring dust as well as to luminous gas. The distance of the Trapeziumb and nebulosity is estimated at 550 ly
171	1977	gn	DSS	DSS	TOB_R-50f4	gn 1977 refers to nebulosity around the northern star of Orion's dagger
172	1980	gn	DSS	DSS	TOB_R-50f4	gn 1980 is a faint extension of the great nebula in the vicinity of Iota Ori.
173	1982	gn	DSS	DSS	TOB_R-50f4	gn 1982 (M 43) is a bright nebulosity with tail forming part of the Great Nebula.
174	1990	gn	DSS	DSS	TOB_R-50f4	gn 1990 is a faint nebulsa around Epsilon Ori
175	I 430	gn	DSS	DSS		gn I 430 is a fan-shaped appendage to d Ori.
176	I 434	gn	DSS	DSS	TOB_R-50f4 XMI_SC_250f10	gn I 434 contains the famous Horsehead Nebula, a bright streak extending south from Zeta Ori
177	2070	gn	DSS	DSS		gn 2070 (30 Dor ) in LMC., a great looped nebulosity in a large, bright complex field. The nebulosity is visible to the naked eye, and with the exception of the Orion nebula probably is the most outstanding example of gaseous nebulosity in the visible heavens.
178	2024	gn	DSS	DSS	TOB_R-50f4	gn 2024 is a fan to the east of Zeta Ori
179	2068	gn	DSS	DSS	TOB_R-50f4	gn 2068 (M 78) is a wispy cloud
180	2174-5	gn	DSS	DSS	TOB_R-50f4
181	IC 443	gn	DSS	DSS	TOB_R-50f4
182	2244-6	gn	DSS	DSS	TOB_R-50f4	gn 2244 is a nebulous cluster
	Loop Ori	gn			TOB_R-50f4
183	2261-64	gn	DSS	DSS	TOB_R-50f4
184	I 2177	gn	DSS	DSS	TOB_R-50f4	gn I 2177 is a nebulous patch
185	3372	gn	DSS	DSS		gn 3372 (Eta Car) warrants special attention. This object is part of a bright and extenden nebulous region, with intermingled bright and dark patches. The region is particulary notable because a nova once appeared here.
186	I 2944	gn	DSS	DSS		gn I 2944 is a faint halo around the star Lambda Cen
187	1321.3	gn	DSS	DSS
188	1551.0	gn	DSS DSS	DSS DSS
189	1555.8	gn	DSS DSS	DSS DSS
190	I 4592	gn	DSS	DSS
191	I 4591	gn	DSS	DSS		gn I 4591 is a faint haze around 13 Sco.
192	1618.1	gn	DSS	DSS
193	I 4604	gn	DSS	DSS		gn I 4064 is an interesting nebular patch with a rich stellar background an many dar lanes around the star Rho Oph.
194	1626.2	gn	DSS DSS	DSS DSS
195	I 4605	gn	DSS DSS	DSS DSS		gn I 4605 is a nebulous envelope aroun the star 22 Sco
196	6193	gn	DSS	DSS
197	6514	gn	DSS	DSS		gn 6514 (M 20) 9s the famous Trifid in Sagittarius. Note the dark lanes forming a triple fork.
198	6523	gn	DSS	DSS		gn 6523 ( M 8) is even more spectacular, itself bein visible to the naked eye. This is the Lagoon Nebula, wich has an especially rich field with a cluster involved.
199	6611	gn+oc	DSS	DSS	TOB_R-50f4	gn 6611 (M 16) An spectacular object in the telescope is a nebulous cluster.
200	6618	gn	DSS	DSS	TOB_R-50f4	gn 6618 has been variously called the Omega, the Horseshoe, or the Swan Nebula, descriptive of the peculiar shape. It present a rich background.
201	IC 1287	gn	DSS	DSS		gn I 1287 requires slightly higher telescopic power
202	1958.1	gn	DSS DSS	DSS DSS
203	6888	gn	DSS	DSS	TOB_R-50f4
204	IC 1318a	gn	DSS	DSS	TOB_R-50f4
205	IC 1318b	gn	DSS	DSS	TOB_R-50f4
206	6960	gn	DSS	DSS	TOB_R-50f4
207	IC 5067	gn	DSS	DSS	TOB_R-50f4	Although this object and its neighbors (NGC 7000) gn I 5070 (the Pelican Nebula) and gn I 5067 are extremely faint for telescopic observation, long exposure photography with large camera greatly enhances their interest
208	IC 5068	gn	DSS	DSS	TOB_R-50f4	Although this object and its neighbors (NGC 7000) gn I 5070 (the Pelican Nebula) and gn I 5067 are extremely faint for telescopic observation, long exposure photography with large camera greatly enhances their interest
209	IC 5070	gn	DSS	DSS	TOB_R-50f4	Although this object and its neighbors (NGC 7000) gn I 5070 (the Pelican Nebula) and gn I 5067 are extremely faint for telescopic observation, long exposure photography with large camera greatly enhances their interest
	IC 5146	gn			TOB_R-50f4
	6960	gn			TOB_R-50f4	gn 6960 makes up the western half of a faint circular nebula variously termed Wreath, Loop o Network.
210	6992-6993-6994-6995	gn	DSS DSS	DSS DSS	TOB_R-50f4	The pair gn 6992-5 represents the eastern half of the same loop. Photography is really necessary to show the form and structure of this interesting formation, wich may in fact a planetary derbis from a star that once exploted
	P-Cyg	gn			TOB_R-50f4
211	7000	gn	DSS	DSS	TOB_R-50f4	The most famous (in this Milky Way region) is gn 7000 near Alfa Cyg, commonly called the North American Nebula because of a resemblance to the continent.
212	7023	gn	DSS	DSS	TOB_R-50f4
213	2110.6	gn	DSS DSS	DSS DSS
214	2115.9	gn	DSS DSS	DSS DSS
215	IC 1396	gn	DSS	DSS	TOB_R-50f4	gn I 1396 is a large, faint structure just south of Mu Cep, sometimees called the Garnet Star becaise of its deep red color
	IC 1470	gn			TOB_R-50f4
	IC 1472	gn
	7635	gn
	Table 15
216	40	pn	DSS	DSS	TOB_R-50f4	Faintness makes pn 40 a difficult object
217	246	pn	DSS	DSS		pn 246 is fairly bright, but the distribution of luminosity over the large area makes it somewhat difficult objetc to observe
218	650-651	pn	DSS	DSS	TOB_R-50f4	The double pn 650-1 is large but faint, with irregular extensions to 157". This object, also designated M 76, lies at an estimated distance of 8.200ly
219	1514	pn	DSS	DSS		pn 1514 consist of a 10th-magnitude star surrounded by a faint haze
220	1535	pn	DSS	DSS		pn 1535 cosists of a bright inner ring and a faint outer ring.
221	II 2149	pn	DSS	DSS	TOB_R-50f4	pn II 2149 is a small oval ring of 10th magnitude
222	2392	pn	DSS	DSS	TOB_R-50f4	pn 2392, one of the brightest example of this class, consists of a bright ring set in a patchy disk 43"x47".
223	2438	pn	DSS	DSS		pn 2438 is an irregular patchy ring, on the northern edge of the cluster oc 2437 (M 46).
224	2440	pn	DSS	DSS		pn 2440 consists of bright condensations of nebulosity with faint extensions. It lies in a region rich in stars.
225	2867	pn	DSS	DSS
226	3132	pn	DSS	DSS
227	3242	pn	DSS	DSS		pm 3242 consists of an inner ring with faint outer disk, 35"x40".
228	3587	pn	DSS	DSS	TOB_R-50f4	pn 3587 requires at leats a 6-inch and low magnifications. Astronomers have callaed it the Owl. because two circular dark patches within the disk suggest teh eyes of the nocturnal bird. This object also carries the designation M97
229	3918	pn	DSS	DSS
230	4361	pn	DSS	DSS		pn 4361 is a large, irregular oval mass, faint and difficult to see except with low-power eyepiece.
231	5189	pn	DSS	DSS
232	1547.4	pn	DSS	DSS
233	I 4593	pn	DSS	DSS
234	6210	pn	DSS	DSS	TOB_R-50f4	pn 6210 has a fairly bright inner ring with a faint outer ring 20"x43"
235	II 4634	pn	DSS	DSS
236	6543	pn	DSS	DSS		pn 6543 is one of the brightest of these objects in the sky. A 3-inch telescope will show the disk, bust somewaht larger instruments are necessary to revel internal structure, a bright irregular helix.
237	6572	pn	DSS	DSS	TOB_R-50f4	pn 6572, a bright oval disk, is one of the most interesting objects of this class.
238	1852.0	pn	DSS	DSS
239	6720	pn	DSS	DSS	TOB_R-50f4 XMI_SC_250f10	pn 6720, the famous Ring Nebula in Lyra consists of a shell of luminous gas surronding a very hot an very blue star. Althoug the star shows cleary on most photographs, so much of this light falss in the ultraviolet that the central star is visible only with largest telescopes. The atoms of the nebular gas absorb energy in the far ultraviolet and convert it to visile radiation, so that the gas becomes luminous. A 4-inch telescope will reveal the nebula cleary, though still larger one are necessary to show structural details. This nebuloa, is also known as M 57.
	6781	pn			XMI_SC_250f10
240	6803	pn	DSS	DSS	TOB_R-50f4	pn 6803 exhibits a small bright disk.
241	1932.8	pn	DSS	DSS
242	6818	pn	DSS	DSS		pn 6818 appears as an irregular oval ring
243	6826	pn	DSS	DSS	TOB_R-50f4	pn 6826 consists of bright patches in a faint oval of luminosity
244	6853	pn	DSS	DSS	TOB_R-50f4 XMI_SC_250f10	pn 6853 is one of the largest in the sky, second only to 7293 in Aqr. The forma vaguely suggest a dumbell, wich is commonly termed. The total brightness is high, but energy is spread over so large an area that the the surface brightness is fairly low. Hence one needs a dark sky to view it well.
245	6891	pn	DSS	DSS	TOB_R-50f4	pn 6891 is a bright disk surrounded by a fainter ring, about 15" diameter.
	(6894)	pn			XMI_SC_250f10
246	7009	pn	DSS	DSS		pn 7009 is one of the brightest members if this class. It consists of a bright inner ring surrounded by a patchy outer disk 26"x39", with faint extensions to 44". Its appears to posses a faint external ring and hence sometimes called Saturn Nebula.
247	7027	pn	DSS	DSS	TOB_R-50f4 XMI_SC_250f10	pn 7027 is of irregular shape, with four vet bright condensations.
	(7048)	pn			XMI_SC_250f10
248	7293	pn	DSS	DSS		pn 7293 is bright as far as total magniitud is concerned. Its great size, however, makes it difficult to see except with very low power. This is the famous gian Helical Nebula.
249	I 1470	pn	DSS	DSS	TOB_R-50f4
250	7635	pn (gn)	DSS	DSS	TOB_R-50f4	pn 7635 has a higih total brightness, thoug its large size makes it seem faint, except with low telescopic power.
251	7662	pn	DSS	DSS	TOB_R-50f4	pn 7662 is one of the brighter members of the class. It has a bright inner ring surrounded by a faint outer oval approimately 28"x32"
	Table 16
252	55	eg	DSS	DSS
253	205	eg	DSS	DSS	TOB_R-50f4	eg 224 also known as M 31, is the great Andromeda Nebula, cleary visible to the naked eye: a binocular shows its particullary well as an extended oval. This object is the most perceptible to the unaided eye, being approximately 11/2 million light-years distant. This spiral has two faint elliptical companions, eg 221 (also know as M32) and eg 205
254	224	eg	DSS	DSS	TOB_R-50f4	eg 224 also known as M 31, is the great Andromeda Nebula, cleary visible to the naked eye: a binocular shows its particullary well as an extended oval. This object is the most perceptible to the unaided eye, being approximately 11/2 million light-years distant. This spiral has two faint elliptical companions, eg 221 (also know as M32) and eg 205
255	221	eg	DSS	DSS		eg 224 also known as M 31, is the great Andromeda Nebula, cleary visible to the naked eye: a binocular shows its particullary well as an extended oval. This object is the most perceptible to the unaided eye, being approximately 11/2 million light-years distant. This spiral has two faint elliptical companions, eg 221 (also know as M32) and eg 205
256	247	eg	DSS	DSS		eg 247, though nearly as large, is about four magnitudes fainter than eg 253.
257	253	eg	DSS	DSS		eg 253 is a large and beautiful spiral, the fines and brightest in the sky with the exception of the great Andromeda Nebula
258	SMC	eg	DSS	DSS	(TOB_P_7x50mm) (TOB_SC-90mm)	The SMC , wich looks like a minute section of the Milky Way, is am irregular group of stars constituing a separate universe . It will repay observation with all varietis of telescopic power fron low to high. And even with the eye tha hazy outline is interesting because of the relative darkness of the sky background
259	598	eg	DSS	DSS	TOB_R-50f4 XMI_SC-10" f6	eg 598 (M 33) is the famous spiral in Triangulum. Since it is the brightest object of this class in the northern sky, with the exception of the Andromeda Nebula, the amateur will find it useful to test his telescope on this galaxy before trying to locate fainter objects.
260	1068	eg	DSS	DSS		eg 1068 (M 77) is one of the brighter elliptical spirals
261	1097	eg	DSS	DSS		eg 1097 is faint
262	1291	eg	DSS	DSS
263	1313	eg	DSS	DSS
264	1316	eg	DSS	DSS
265	1399	eg	DSS	DSS
266	1549	eg	DSS	DSS		eg 1549 show nothing particulary notable
267	1553	eg	DSS	DSS		eg 1553 show nothing particulary notable
268	1566	eg	DSS	DSS		eg 1556 show nothing particulary notable
269	1792	eg	DSS	DSS
270	LMC	eg	DSS	DSS	(TOB_P_7x50mm) (TOB_SC-90mm)	LMC is one of the finest objects in the sky, resolvable even with relatively small optical aid. Lies at distance of about 100.000 ly
271	2403	eg	DSS	DSS		eg 2403, 2841 and 3310 ar somewhat fainter than the Messier objects
272	2683	eg	DSS	DSS
273	2841	eg	DSS	DSS		eg 2403, 2841 and 3310 ar somewhat fainter than the Messier objects
274	2903	eg	DSS	DSS		eg 2903, shows a faint, elliptical patch of luminosity
275	2997	eg	DSS	DSS
276	3031	eg	DSS	DSS	TOB_R-50f4 XMI_SC-235f/10	These are among the brigthest gallaxies in the sky. eg 3031 and 3034 are interesanting, thouht a 4-inch telescope is generally necessary to show them cleary, as hazy patches of light . These are mong the brightest galaxies in the sky. Observe them with low power on a moonles night. eg 3031 is the beautiful spiral M81
277	3034	eg	DSS	DSS	TOB_R-50f4 XMI_SC-235f10	Is an elongated patch, also called M82
	3077	eg			TOB_R-50f4
278	3115	eg	DSS	DSS		eg 3115 in Sextans is one of the brighter representatives of this class
279	3310	eg	DSS	DSS		eg 2403, 2841 and 3310 ar somewhat fainter than the Messier objects
280	3368	eg	DSS	DSS		eg 3368 is considerably faint
281	3379	eg	DSS	DSS		eg 3379 is considerably faint
282	3521	eg	DSS	DSS
283	3556	eg	DSS	DSS	TOB_R-50f4
284	3621	eg	DSS	DSS
285	3623	eg	DSS	DSS		eg 3623 (M 65) is one of the brighter spirals highly elliptical in shape
286	3627	eg	DSS	DSS		eg 3627 (M 66) is also a bright elliptical spiral
287	3893	eg	DSS	DSS
288	4038	eg	DSS	DSS
289	4214	eg	DSS	DSS
290	4254	eg	DSS	DSS		eg 4254 (M 99), open and small spiral
291	4258	eg	DSS	DSS	TOB_R-50f4
292	4303	eg	DSS	DSS		eg 4303 (M 61) is a beautiful spiral, seen face on
293	4321	eg	DSS	DSS	XMI_SC_250f10	eg 4321 (M 100), open spiral
294	4374	eg	DSS	DSS		eg 4374 (M 84), bright amorphous nebula
295	4382	eg	DSS	DSS		eg 4382 (M 85 ), show as a bright oval patch
296	4406	eg	DSS	DSS		eg 4406 (M 86), bright oval relatively faint, difficult object
297	4449	eg	DSS	DSS
298	4472	eg	DSS	DSS		eg 4472 is relatively faint, difficult object
299	4490	eg	DSS	DSS
300	4486	eg	DSS	DSS		eg 4486 (M 87), bright oval, relatively faint, difficult object
301	4494	eg	DSS	DSS
302	4501	eg	DSS	DSS		eg 4501 (M 88), beautiful spiral. Though faint shows beautiful spiral structure
303	4526	eg	DSS	DSS
304	4559	eg	DSS	DSS
305	4565	eg	DSS	DSS
	4593	eg			TOB_R-50f4
306	4594	eg	DSS	DSS	XMI_SC_250f10
307	4605	eg	DSS	DSS
308	4631	eg	DSS	DSS
309	4636	eg	DSS	DSS
310	4649	eg	DSS	DSS		eg 4649 (M 60), is without structure
311	4697	eg	DSS	DSS
312	4699	eg	DSS	DSS
313	4725	eg	DSS	DSS
314	4736	eg	DSS	DSS	TOB_R-50f4	eg 4736 (M 94), beautiful bright spiral
315	4753	eg	DSS	DSS
316	4826	eg	DSS	DSS
317	4945	eg	DSS	DSS
318	5055	eg	DSS	DSS	TOB_R-50f4	eg 5055 (M 63), elongated spiral
319	5102	eg	DSS	DSS
320	5128	eg	DSS	DSS		eg 5128, an irregular object resembling the Magellanic Clouds is one of the brighter examples of this class.
321	5194	eg	DSS	DSS	TOB_R-50f4 XMI_SC_250f10
	5195	eg			TOB_R-50f4 XMI_SC_250f10
	5198	eg			TOB_R-50f4
322	5236	eg	DSS	DSS
325	5248	eg	DSS	DSS		eg 5248 is out standing
326	5253	eg	DSS	DSS		eg 5253 (M 83) is exceptional. It is certainly to be counted among the brightest of the spiral nebula
327	5457	eg	DSS	DSS	TOB_R-50f4	eg 5457, also known as M 101, is an excepcionally beautiful spiral, one of brightest in the sky.
	5477	eg			TOB_R-50f4
	5746				XMI_SC_250f10
328	6822	eg	DSS	DSS	TOB-GEN_T_500	eg 6822 is particulary remarkable because it lies so close to the Milky Way. Evidently we view i through a window in the obscuring dust that fills this region. Although it is one of the nearer and apparently larger galaxies, the intervening dust cloud obscures it so that it seems relatively faint.
	6838	eg
	7317-7318a-7318b, 7319-7320c	eg			XMI_SC_250f10
	7331	eg			XMI_SC_250f10
	7332	eg			XMI_SC_250f10
	7339	eg			XMI_SC_250f10
329	7793	eg	DSS	DSS

*Menzel's Guide Tables 12, 13, 14, 15, 16

Note: The objects without MZ-OAG number not are cataloged in Menzels's Guide

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This research has made use of the Spanish Virtual Observatory (http://svo.cab.inta-csic.es)
supported from the Spanish MINECO/FEDER through grant AyA2017-84089

The DASCH project at Harvard is grateful for partial support from NSF grants AST-0407380, AST-0909073, and AST-1313370

Updated, December 2020