Photographs of Nebulæ and Clusters, Made with the Crossley Reflector

by James Edward Keeler

vS		very small, < 30″
S		small, 30″ to 2′ or 3′
L		large, > 2′ or 3′
B		bright
D		double
E		elongated
F		faint
iF		irregular figure
M		middle or in the middle
N		nucleus
R		round
b		brighter
bn		brighter toward the north side
bs		brighter toward the south side
bp		brighter toward the preceding side
bf		brighter toward the following side
bsw		brightest toward the south-west
bM		brighter toward the middle
dif		diffused
diffic		difficult
eF		extremely faint
g		gradually
i		irregular
l		little
m		much
p		pretty
pB		pretty bright
pF		pretty faint
sc		scattered
stell		stellar
sbM		suddenly brighter toward the middle
v		very
vbM		very much brighter toward the middle
vS		very small
F*inv		faint star involved
◯		planetary

Positions of Known Nebulæ Determined from the Crossley Negatives.

N.G.C.	α 1900.0			Precession.	δ 1900.0			Precession.	Remarks.
	h	m	s	s	°	′	″	″
185	0	33	27.9	+3.2866	+47	47	8	+19.840
247	0	42	11.0	2.9770	-21	18	21	19.708
253	0	42	38.6	2.9526	-25	50	4	19.701
509	1	18	9.6	3.1429	+ 8	54	40	18.894
516	1	18	53.2	3.1444	+ 9	1	46	18.876
518	1	19	3.0	3.1428	+ 8	48	32	18.871
522	1	19	30.6	3.1486	+ 9	28	19	18.857
524	1	19	33.0	3.1414	+ 9	1	2	18.856
525	1	19	37.9	3.1464	+ 9	10	54	18.854
532	1	20	2.5	3.1430	+ 8	44	35	18.841
...	1	21	7.3	3.1493	+ 9	23	21	18.810	N. G. C. Sup. 114
628	1	31	24.8	3.2141	+15	16	22	18.473
891	2	16	17.7	3.7447	+41	53	44	16.609
906	2	18	59.5	3.7502	+41	38	10	16.476
1023	2	34	8.1	3.7387	+38	37	42	15.681
1055	2	36	37.5	3.0739	+ 0	0	48	15.545
1068	2	37	33.7	3.0658	- 0	26	23	15.493
1072	2	38	23.7	3.0715	- 0	7	8	15.447
1084	2	41	4.5	2.9513	- 7	59	56	15.300
1638	4	36	33.4	3.0287	- 2	0	6	7.139
1931	5	24	48.7	3.9695	+34	10	7	+ 3.067
2366	7	18	19.3	6.4249	+69	24	51	- 6.718
2371-2	7	19	16.4	3.7891	+29	41	13	6.797
2403	7	27	11.7	5.8367	+65	49	13	7.445
2624	8	32	24.2	3.4566	+20	4	24	12.370
2683	8	46	27.6	3.7417	+33	47	51	13.317
2841	9	15	7.8	4.1755	+51	24	3	15.080
2903, 5	9	26	30.4	3.4065	+21	56	15	15.716	N. G. C. 2903 and 2905
3003	9	42	39.1	3.5786	+33	53	9	16.553
3021	9	45	1.0	3.5735	+34	1	14	16.670
3031	9	47	17.9	5.0430	+69	32	14	16.785
3079	9	55	11.4	4.1050	+56	9	34	17.147
3115	10	0	15.1	2.9877	- 7	14	6	17.372
3156	10	7	30.5	3.1107	+ 3	37	29	17.680
3166	10	8	34.9	3.1143	+ 3	55	11	17.724
3169	10	9	4.2	3.1154	+ 3	57	41	17.744
3184	10	12	17.4	3.6158	+41	55	27	17.874
3198	10	13	47.9	3.6919	+46	3	3	17.933
3222	10	17	6.5	3.2879	+20	23	30	18.062
3227	10	17	59.1	3.2864	+20	24	14	18.094
3226	10	18	2.8	3.2859	+20	22	13	18.097
...	10	20	55.2	4.5248	+68	55	14	18.204	Coddington’s Neb. in Ursa Major.
3556	11	5	36.8	3.5420	+56	13	0	19.485
3587	11	9	0.1	3.5029	+55	33	47	19.553
3623	11	13	42.8	3.1374	+13	38	23	19.639
3627	11	15	2.2	3.1352	+13	32	18	19.662
3726	11	27	55.4	3.2764	+47	34	50	19.851
4226	12	11	28.2	2.9995	+47	34	53	20.024
4231	12	11	51.1	2.9956	+48	0	46	20.022
4232	12	11	51.2	2.9957	+47	59	39	20.022
4244	12	12	29.4	3.0148	+38	24	34	20.017
4248	12	12	53.1	2.9890	+47	57	52	20.016
4254	12	13	45.0	3.0509	+14	58	19	20.011
4258	12	14	0.8	2.9821	+47	51	35	20.010
4292	12	16	10.3	3.0639	+ 5	9	1	19.997
4303	12	16	48.7	3.0637	+ 5	1	42	19.993
4321	12	17	51.0	3.0418	+16	22	36	19.986
4379	12	20	11.2	3.0382	+16	9	43	19.970
4382	12	20	21.3	3.0321	+18	44	45	19.968
4394	12	20	53.0	3.0310	+18	46	7	19.964
4501	12	26	56.6	3.0304	+14	58	21	19.909
4516	12	28	5.1	3.0282	+15	7	38	19.898
4527	12	29	2.2	3.0629	+ 3	12	19	19.886
4533	12	29	15.6	3.0638	+ 2	52	39	19.884
4536	12	29	20.6	3.0642	+ 2	44	22	19.883
4565	12	31	23.3	2.9812	+26	32	20	19.859
4627	12	37	7.3	2.9316	+33	7	22	19.784
4631	12	37	14.4	+2.9315	+33	5	19	-19.783
4712	12	44	40.3	+2.9475	+26	0	55	-19.667
4725	12	45	33.0	2.9434	+26	2	44	19.652
4736	12	46	10.5	2.8344	+41	39	54	19.641
4747	12	46	52.4	2.9381	+26	19	8	19.629
4826	12	51	49.1	2.9499	+22	13	30	19.538
5055	13	11	20.5	2.6965	+42	33	28	19.083
5194	13	25	40.1	2.5358	+47	42	43	18.663
5247	13	32	38.6	3.2368	-17	22	28	18.431
5457	13	59	40.4	2.1264	+54	49	44	17.375
5857	15	2	54.8	2.7244	+19	58	56	13.993
5859	15	3	2.2	2.7245	+19	58	1	13.986
5866	15	3	45.3	1.6405	+56	8	54	13.941
5870	15	3	48.5	1.6556	+55	51	50	-13.938
7315	22	30	53.4	2.7270	+34	17	8	+18.552
7331	22	32	24.5	2.7374	+33	53	55	18.600
7333	22	32	40.1	2.7380	+33	55	44	18.609
7336	22	32	42.6	2.7377	+33	57	47	18.610
7340	22	33	4.7	2.7399	+33	53	28	18.622
7537	23	9	29.3	3.0521	+ 3	57	14	19.562
7541	23	9	38.7	3.0520	+ 3	59	21	19.565
7778	23	48	12.9	3.0635	+ 7	18	55	20.021
7779	23	48	20.0	3.0636	+ 7	19	12	20.021
7780	23	48	25.5	3.0633	+ 7	33	44	20.021
7781	23	48	39.2	3.0638	+ 7	18	17	20.022
7782	23	48	47.1	3.0638	+ 7	24	52	20.023
7814	23	58	7.5	3.0693	+15	35	20	20.046
7817	23	58	51.2	3.0699	+20	11	46	20.047

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LIST OF ILLUSTRATIONS.

No.	N.G.C. No.	Date.		Exposure.		Enlargement.	Orientation Top.	Remarks
				h	m
1	224	1899, September	7	3	0	2.0	W	Great nebula in Andromeda.
2	253	1902, December	18-20	3	0	2.5	S	H V, 1.
3	598	1899, September	12	3	30	2.1	W	M 33.
4	628	1899, October	31	4	0	3.4	S	M 74.
5	650	1899, September	11	3	0	3.4	S	M 76.
6	891	1899, November	6	4	0	3.4	S	H V, 19.
7	1068	1899, December	3	3	0	7.2	S	M 77.
8	..	1899, December	28	4	0	2.1	W	Pleiades.
9	1952	1899, December	24	2	0	3.4	S	Crab nebula.
10	..	1898, November	16	0	40	2.2	S	Great nebula in Orion.
11	..	1899, February	9	0	5	2.5	S	Great nebula in Orion.
12	1977	1900, January	21	2	50	2.4	S	H V, 30.
13	2024	1902, January	28	3	0	2.4	S	H V, 28.
14	2068	1902, November	26	3	0	2.4	S	M 78.
15	2264	1903, February	23	3	0	2.5	S	Nebula near 15 Monocerotis.
16	..	1903, February	26	4	0	2.5	S	New nebula in Monoceros (Roberts).
17	2403	1900, February	27	4	0	3.4	S	H V, 44.
18	2683	1900, February	23	3	20	3.3	S	H I, 200.
19	2841	1901, April	17	3	0	3.4	S	H I, 205.
20	2903-5	1900, February	24	3	30	3.4	S	H I, 56, 57.
21	3031	1900, March	21	3	55	3.4	S	M 81.
22	3115	1901, April	9	2	30	5.0	S	H I, 163.
23	3198	1900, March	24	4	0	4.3	S	H I, 199.
24	3226-7	1901, April	10	3	0	3.4	S	H II, 28, 29.
251	3242 {	1901, April	9	0	1	20	S	H IV, 27.
252		1901, April	8	0	10	20	S	H IV, 27.
26	3556	1902, May	3	4	0	3.3	S	H V, 46.
27	3587	1900, March	28	4	0	3.3	S	Owl nebula.
28	3623	1900, April	23	3	30	3.8	S	M 65.
29	3627	1900, April	23	3	30	4.3	S	M 66.
30A	3726	1900, March	29	4	0	4.9	S	H II, 730.
30B	3726	1900, March	29	4	0	4.9	S	H II, 730.
31	4244	1900, March	30	3	0	3.7	S	H V, 41.
32	4254	1902, June	7	3	19	3.7	S	M 99.
33	4258	1903, May	23	3	53	3.8	S	H V, 43.
34	4303	1900, April	27	3	0	3.4	S	M 61.
35	4321	1901, April	19	3	0	4.2	S	M 100.
36	4485-90	1901, April	17	1	45	4.4	S	H I, 197-8.
37	4501	1902, June	27-28	3	0	3.9	S	M 88.
38	4536	1903, May	27	3	30	3.3	S	H V, 2.
39	4559	1901, May	9	3	0	3.4	S	H I, 92.
40	4565	1901, April	21	3	0	3.3	S	H V, 24.
41	4631	1902, June	6	3	0	3.3	S	H V, 42.
42	4725	1902, June	30-July 2	3	32	3.4	S	H I, 84.
43	4736	1902, July	7	0	30	3.3	S	M 94.
44	4736	1902, July	4	3	0	3.3	S	M 94.
45	4826	1900, May	27	2	30	3.8	S	M 64.
46	5055	1902, July	5	3	30	3.3	S	M 63.
47	5194-5	1899, May	10	4	0	3.3	S	M 51.
48	5272	1900, May	22	1	30	3.8	S	M 3.
49	5457-8	1899, June	8	4	0	3.2	S	M 101.
50	5857-9	1900, May	31	2	30	7.2	S	H II, 751-2.
51	5866	1902, July	28	3	0	4.9	S	H I, 215.
52	5904	1900, May	24	1	30	3.7	S	M 5.
53	6205	1900, June	22	2	0	3.8	S	M 13.
54	6218	1899, July	11	2	0	3.7	S	M 12.
55	6514	1899, July	6	3	0	4.1	S	Trifid nebula.
56	6523	1899, July	7	4	0	2.0	W	M 8.
57	6543	1899, August	8	0	5	19	S	H IV, 37.
58	6618	1899, July	9	4	0	3.1	S	Omega nebula.
59	6720	1899, July	14	0	10	13	S	M 57.
60	6853	1899, July	31	3	0	3.8	S	Dumb-Bell nebula.
61	6894	1899, August	9	1	0	7.2	S	H IV, 13.
62	6946	1899, August	7	4	0	3.9	S	H IV, 76.
63	6995	1899, August	29	4	0	2.2	S	Network nebula in Cygnus.
64	7009 {	1899, July	28	0	10	}17	S {	H IV, 1.
		1899, July	30	0	2			H IV, 1.
65	7023	1903, August	19-20	3	0	3.8	S	H IV, 74.
66	7217	1899, August	12	4	0	7.1	S	H II, 207.
67	7331	1899, August	11	4	0	3.8	S	H I, 53.
68	7479	1899, August	9	2	0	4.8	S	H I, 55.
69	7662	1899, September	5	{	10s	}17	S	H, IV, 18.
					20s
					30s
					1m
					2m
70	7814	1899, September	30	3	0	4.9	S	H II, 240.

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