Catalogues

Indus / New General & Index Catalogue (NGC/IC)

Galaxies

Revised+Historic NGC/IC Version 22/9, © 2022 Dr. Wolfgang Steinicke [277]
Name RA Dec Type bMag vMag B-V SB Dim PA z D(z) MD Dreyer Description Identification, Remarks
NGC 6918 20 30 46.9 -47 28 27 Gx (SB0-a) 14.5 13.6 0.9 12.9 0.9 × 0.7 178 0.017409 73.53 vF, * 12 att sp ESO 234-40; FAIR 345; IRAS 20272-4738
NGC 6935 20 38 20.0 -52 06 37 Gx (SBa) 12.8 12.0 0.8 13.2 2.1 × 1.8 8 0.015154 64.01 pB, cL, R, glbM, r, p of 2 ESO 234-59; FAIR 906; AM 2034-521; IRAS 20346-5217
NGC 6937 20 38 45.8 -52 08 38 Gx (SBc) 13.6 12.9 0.7 14.5 2.5 × 2.1 51 0.015934 67.30 vF, cS, R, slbM, f of 2 ESO 234-60; FAIR 349; AM 2035-521; IRAS 20350-5219
NGC 6942 20 40 37.9 -54 18 08 Gx (SB0-a) 12.6 11.7 0.9 12.9 2.1 × 1.6 150 0.010914 46.10 pB, pL, R, pslbM ESO 186-73; AM 2036-542
NGC 6948 20 43 28.9 -53 21 26 Gx (Sa) 13.7 12.8 0.9 13.5 2.2 × 1 115 0.010824 45.72 74.700 vF, pS, cE, lbM ESO 187-9; AM 2039-533; IRAS 20397-5332
NGC 6970 20 52 09.4 -48 46 41 Gx (SBa) 13.2 12.6 0.6 12.6 1 × 0.6 123 0.017525 74.02 51.730 pB, S, lE, gbM ESO 235-8; AM 2048-485; IRAS 20486-4857
NGC 6982 20 57 18.3 -51 51 46 Gx (SBa) 14.4 13.7 0.7 13.1 1 × 0.7 68 0.015793 66.71 vF, S, E, p of 2 ESO 235-19; IRAS 20537-5203
NGC 6984 20 57 54.2 -51 52 15 Gx (SBc) 13.2 12.7 0.5 13.4 1.8 × 1.2 101 0.015577 65.80 47.380 F, pL, vlE, vgbM, f of 2 ESO 235-20; AM 2054-520; IRAS 20543-5203
NGC 6987 20 58 10.4 -48 37 48 Gx (E1) 13.4 12.4 1.0 13.0 1.4 × 1.2 92 0.017475 73.81 67.700 pF, S, vlE, gpmbM, B * p 1' ESO 235-21; IRAS 20546-4849
NGC 6990 20 59 57.0 -55 33 43 Gx (Sa) 14.1 13.2 0.9 12.4 1.2 × 0.5 0 0.032000 135.1 eeF, vS, vmE 0°, * 13 att, n ESO 187-43; IRAS 20562-5545
NGC 7002 21 03 45.0 -49 01 45 Gx (E1) 13.5 12.4 1.1 13.0 1.5 × 1.2 3 0.024520 103.5 89.100 cF, cS, R, bM ESO 235-43
NGC 7004 21 04 02.0 -49 06 51 Gx (SB0-a) 13.8 12.8 1.0 13.4 1.3 × 0.6 73 0.025284 106.8 eF, R, lbM, * 11 f ESO 235-46; FAIR 938
NGC 7007 21 05 27.8 -52 33 07 Gx (E-S0) 12.9 12.0 0.9 12.7 2 × 1.2 2 0.010334 43.65 37.300 pB, S, R, psbM, am st ESO 187-48
NGC 7014 21 07 52.0 -47 10 43 Gx (E2) 13.4 12.4 1.0 13.4 1.7 × 1.4 130 0.016201 68.43 64.070 pF, S, R, bM, 2 st 12 n ESO 286-57
NGC 7022 21 09 35.1 -49 18 13 Gx (SB0) 14.0 13.0 1.0 13.4 1.5 × 1.1 16 0.007699 32.52 eeF, S, R, B *** sf ESO 235-65; FAIR 952
NGC 7029 21 11 51.7 -49 17 01 Gx (E6) 12.4 11.5 0.9 12.9 2.5 × 1.4 71 0.009470 40.00 36.190 B, cS, R, pgmbM ESO 235-72; AM 2112-483
NGC 7038 21 15 07.5 -47 13 13 Gx (SBc) 12.3 11.6 0.7 13.3 3.1 × 1.4 127 0.016471 69.57 62.710 pB, pL, lE, gbM ESO 286-79; FAIR 960; AM 2111-472; IRAS 21117-4725
NGC 7038 A 21 15 15.0 -47 36 46 Gx (SBc) 15.3 14.6 0.7 14.0 1.1 × 0.6 25 0.017139 72.39 pB, pL, lE, gbM ESO 235-80
NGC 7041 21 16 32.1 -48 21 47 Gx (E-S0) 12.1 11.2 0.9 12.9 3.6 × 1.5 85 0.006491 27.42 24.950 B, cS, cE, psmbM, * 10 f ESO 235-82; AM 2113-483
NGC 7041 A 21 17 57.2 -48 24 08 Gx (SBd) 14.7 14.1 0.6 14.8 1.6 × 1.4 23 0.022916 96.80 B, cS, cE, psmbM, * 10 f ESO 235-84; IRAS 21144-4836
NGC 7041 B 21 17 49.6 -48 23 26 Gx (S?) 15.9 15.0 0.9 12.8 0.5 × 0.3 75 0.022729 96.01 B, cS, cE, psmbM, * 10 f
NGC 7049 21 19 00.2 -48 33 41 Gx (S0) 11.7 10.6 1.1 13.2 4.5 × 3 57 0.007622 32.19 28.750 vB, pS, E, mbM ESO 236-1; AM 2115-484; IRAS 21156-4846
NGC 7061 21 27 26.7 -49 03 48 Gx (E4) 14.3 13.3 1.0 13.1 1.2 × 0.7 137 0.030037 126.8 eeF, vS, R ESO 236-13; AM 2123-491
NGC 7064 21 29 03.2 -52 46 02 Gx (SBc) 13.1 12.5 0.6 13.3 3.8 × 0.7 91 0.002659 11.23 11.350 eF, pL, vmE 91°, * s ESO 188-9; IRAS 21255-5259
NGC 7083 21 35 44.6 -63 54 12 Gx (Sbc) 11.9 11.2 0.7 13.5 3.9 × 2.3 5 0.010344 43.69 33.260 pF, cL, vlE, vgpmbM, r ESO 107-36; IRAS 21318-6407
NGC 7090 21 36 27.7 -54 33 18 Gx (SBc) 11.3 10.7 0.6 13.0 7.3 × 1.2 127 0.002825 11.93 8.400 pB, pL, vmE 127°, g, pslbM ESO 188-12; AM 2133-544; IRAS 21329-5446
NGC 7096 21 41 19.1 -63 54 30 Gx (Sa) 12.8 11.9 0.9 13.0 1.8 × 1.6 130 0.010340 43.68 36.700 vF, S, R, vS ** nf IC 5121; ESO 107-46; AM 2137-640; IRAS 21373-6408
NGC 7106 21 42 36.5 -52 41 57 Gx (SBc) 13.9 13.4 0.5 13.8 1.7 × 1 81 0.010929 46.16 45.120 eF, cS, lE, vglbM ESO 188-17; AM 2139-525
NGC 7123 21 50 46.4 -70 20 02 Gx (Sa) 12.6 12.2 0.4 13.4 3 × 1.1 146 0.012335 52.10 pB, S, R, vgbM, * 9 f ESO 75-27
NGC 7124 21 48 05.3 -50 33 56 Gx (SBbc) 13.2 12.3 0.9 13.7 2.8 × 1.1 143 0.017251 72.87 60.750 pB, L, pmE, vgbM ESO 237-2; ESO 236-49; AM 2144-504; IRAS 21447-5047
NGC 7125 21 49 16.2 -60 42 45 Gx (SBc) 12.8 12.4 0.4 14.3 3 × 2.1 110 0.010501 44.36 38.400 eF, pL, R, sp of 2 ESO 145-17; AM 2145-605; IRAS 21456-6056
NGC 7126 21 49 18.3 -60 36 34 Gx (Sc) 12.9 12.2 0.7 13.5 2.8 × 1.3 71 0.009944 42.00 39.650 pB, pS, lE, gbM, nf of 2 ESO 145-18; AM 2145-605; IRAS 21456-6050
NGC 7140 21 52 15.1 -55 34 11 Gx (SBbc) 12.2 11.5 0.7 14.1 4.1 × 3 18 0.009947 42.02 37.400 pF, cS, R, bM NGC 7141; ESO 189-7; FAIR 354; AM 2148-554; IRAS 21488-5548
NGC 7151 21 55 04.0 -50 39 29 Gx (SBc) 13.4 12.7 0.7 13.9 2.9 × 1.1 75 0.006227 26.30 24.920 vF, pL, lE, vgbM, r ESO 237-15
NGC 7155 21 56 09.8 -49 31 19 Gx (SB0) 13.1 12.2 0.9 13.5 2.3 × 2 4 0.006608 27.91 23.500 pB, S, lE, mbM IC 5143; ESO 237-16; FAIR 991
NGC 7168 22 02 07.3 -51 44 36 Gx (E3) 12.9 11.9 1.0 13.2 1.9 × 1.4 68 0.009206 38.89 34.850 pB, S, R, psbM ESO 237-26; AM 2158-515
NGC 7179 22 04 49.0 -64 02 49 Gx (SBbc) 13.3 12.8 0.5 13.2 2 × 0.8 48 0.009960 42.07 46.760 cF, pS, vgbM ESO 108-11
NGC 7191 22 06 51.2 -64 38 01 Gx (SBc) 13.6 12.9 0.7 12.7 1.6 × 0.6 136 0.009790 41.35 37.370 vF, S, lE, vgbM ESO 108-13; IRAS 22031-6452
NGC 7192 22 06 49.9 -64 18 58 Gx (E1) 12.2 11.2 1.0 12.7 1.9 × 1.8 27 0.009934 41.96 34.040 pB, S, R, pmbM ESO 108-12
NGC 7196 22 05 54.8 -50 07 09 Gx (E2) 12.4 11.5 0.9 13.1 2.5 × 1.9 53 0.009750 41.18 45.650 cB, S, R, am st ESO 237-36; AM 2202-502; IRAS 22026-5021
NGC 7199 22 08 30.1 -64 42 22 Gx (SBa) 13.9 13.1 0.8 12.9 1.1 × 0.8 30 0.009563 40.39 vF, S, R, pslbM, * 11 p 3' ESO 108-14
NGC 7200 22 07 09.6 -49 59 44 Gx (E3) 13.8 12.9 0.9 13.5 1.2 × 0.8 33 0.009663 40.82 51.500 pF, S, R, smbM ESO 237-37
NGC 7205 A 22 07 32.0 -57 27 51 Gx (SBcd) 14.5 14.0 0.5 13.9 1.2 × 0.9 65 0.024130 101.9 pB, L, cE, gpslbM ESO 146-7; IRAS 22041-5742
NGC 7216 22 12 36.0 -68 39 43 Gx (E-S0) 13.5 12.6 0.9 13.1 1.7 × 1 133 0.011771 49.72 pF, S, R, gbM ESO 76-3
NGC 7633 23 23 03.1 -67 39 13 Gx (SB0-a) 13.3 12.4 0.9 13.9 2.3 × 2 142 0.012505 52.82 F, vS, E 90°, psbM ESO 77-15
NGC 7655 23 26 45.9 -68 01 39 Gx (S0) 14.2 13.2 1.0 12.3 0.8 × 0.6 75 0.012917 54.56 eF, vS, R, pslbM, * 10 p 22s ESO 77-18; AM 2325-680
IC 5017 20 32 03.9 -57 35 14 Gx (S0 R) 14.8 13.8 1.0 13.2 1 × 0.6 5 0.025174 106.3 bM, magn 14.5 ESO 143-29; FAIR 72
IC 5021 20 33 34.3 -54 31 17 Gx (S/P) 15.0 14.3 0.7 13.0 0.8 × 0.6 2 0.011418 48.23 vS, R disc, magn 14 ESO 186-61; AM 2029-544
IC 5027 20 41 08.9 -55 28 21 Gx (Sc) 15.3 14.5 0.8 12.8 0.5 × 0.5 0.037029 156.4 R, magn 15 ESO 186-74; FAIR 554
IC 5033 20 43 55.1 -57 20 04 Gx (Sc) 15.3 14.5 0.8 13.6 1 × 0.5 45 0.023273 98.30 vS, R, lbM, magn 15 ESO 144-1
IC 5034 20 43 41.7 -57 01 48 Gx (Sbc) 14.4 13.6 0.8 13.5 1.5 × 0.7 22 0.036302 153.3 bM, magn 14.5 ESO 187-10
IC 5035 20 44 14.5 -57 07 39 Gx (Sb) 15.9 15.1 0.8 13.3 0.7 × 0.3 128 0.035808 151.3 vS, R, lbM, magn 15 ESO 187-11
IC 5036 20 44 37.4 -57 37 35 Gx (Sbc) 16.3 15.5 0.8 13.8 0.8 × 0.3 118 0.011500 48.58 F, pS, mE 125° ESO 144-2
IC 5037 20 45 39.3 -58 26 59 Gx (Sc) 15.3 14.6 0.7 12.7 1 × 0.2 159 0.023196 97.98 F, pS, mE 170° ESO 144-3
IC 5043 20 46 38.4 -56 59 01 Gx (Sc) 16.4 15.6 0.8 13.6 0.6 × 0.3 20 0.046239 195.3 F, S, E 210° ESO 187-14; "little CrB" 3' p
IC 5059 20 51 13.5 -57 41 19 Gx (Sab) 15.5 14.7 0.8 13.6 0.8 × 0.5 13 0.011151 47.10 vF, S, R, dif ESO 144-6
IC 5063 20 52 02.0 -57 04 10 Gx (S0-a) 12.9 11.9 1.0 13.0 2.1 × 1.4 116 0.011348 47.93 bM, magn 13 ESO 187-23; AM 2048-571; IRAS 20481-5715
IC 5064 20 52 38.1 -57 13 57 Gx (SBa) 14.1 13.2 0.9 12.7 1 × 0.7 57 0.011041 46.64 bM, magn 14 ESO 187-28; IRAS 20487-5725
IC 5108 21 32 51.1 -72 39 33 Gx (SBc) 15.1 14.4 0.7 13.5 1.2 × 0.4 101 0.037393 157.9 141.50 eF, vS, cbM ESO 48-25
IC 5109 21 33 42.7 -74 06 42 Gx (E2) 14.6 13.6 1.0 12.9 0.9 × 0.7 174 0.029731 125.5 vF, bM ESO 48-1
IC 5110 21 30 43.5 -60 00 07 Gx (SB) 13.9 13.1 0.8 13.4 1.4 × 1.1 49 0.028887 122.0 vF, vlE ESO 145-7; AM 2126-601
IC 5116 21 37 05.2 -70 58 59 Gx (Sb) 14.2 13.4 0.8 14.0 1.6 × 1.2 15 0.012679 53.56 cF, S, R, stell N ESO 75-18; IRAS 21325-7112
IC 5118 21 42 13.9 -71 22 56 Gx (Sbc) 15.5 14.7 0.8 13.3 1.1 × 0.3 48 0.026697 112.7 vF, S, cE 35°, * 10 sp 2' ESO 75-20
IC 5120 21 38 48.2 -64 21 01 Gx (SBbc) 14.2 13.4 0.8 13.4 2 × 0.6 102 0.011054 46.69 39.240 F, alm R NGC 7096A; ESO 107-41; IRAS 21348-6434
IC 5123 21 44 49.3 -72 25 14 Gx (SBbc) 14.4 13.6 0.8 13.1 1.5 × 0.5 18 0.031775 134.2 cF, vS, cE 15°, * 12 p 1' ESO 48-6; IRAS 21402-7239
IC 5125 21 41 50.3 -52 46 24 Gx (Sbc) 14.2 13.4 0.8 12.5 0.7 × 0.7 0.016195 68.41 F, eS, R, bM ESO 188-16; IRAS 21384-5300
IC 5129 21 47 46.5 -65 23 15 Gx (Sc) 15.3 14.6 0.7 13.5 0.7 × 0.6 0.054958 232.1 No descr ESO 108-3; FAIR 980
IC 5130 21 50 24.7 -73 59 51 Gx (Sbc) 14.4 13.6 0.8 13.3 1.9 × 0.6 109 0.026362 111.3 101.95 vF, vS ESO 48-8; IRAS 21456-7413
IC 5138 21 53 21.5 -68 57 10 Gx (Sb) 14.0 13.2 0.8 12.2 0.9 × 0.5 128 0.027333 115.4 eF, eS, R, susp ESO 75-34
IC 5140 21 54 15.8 -67 19 52 Gx (SBcd) 15.3 14.6 0.7 13.9 2 × 0.3 136 0.013293 56.15 49.220 eF, vS, mE 135° ESO 75-37; FGCE 1664
IC 5141 21 53 17.1 -59 29 35 Gx (Sbc) 13.5 12.7 0.8 13.4 1.7 × 1.3 30 0.014936 63.09 55.550 Planet., stell, 15 mag ESO 145-22; AM 2149-594; IRAS 21496-5943
IC 5142 21 55 20.1 -65 30 37 Gx (Sc) 14.4 13.7 0.7 13.8 1.6 × 0.8 72 0.017869 75.48 79.400 eF, vS, R, bet 2 st, susp ESO 108-6
IC 5147 21 59 26.2 -65 26 59 Gx (SBc) 15.1 14.4 0.7 13.9 1.2 × 0.6 30 0.018576 78.46 74.730 eF, eS, R, F * f 2' ESO 108-9
IC 5152 22 02 41.9 -51 17 46 Gx (Im) 11.1 10.5 0.6 13.4 5 × 3.2 100 0.000407 1.72 1.760 F, cL, cE 150°, cbM ESO 237-27; AM 2159-513; IRAS 21594-5132
IC 5154 22 04 29.6 -66 06 51 Gx (Irr) 15.0 14.4 0.6 12.2 0.5 × 0.3 175 0.010817 45.69 vF, bM ESO 108-10; AM 2200-662; IRAS 22006-6621
IC 5158 22 06 24.9 -67 31 03 Gx (SBm) 15.2 14.6 0.6 13.8 0.9 × 0.6 54 0.011811 49.89 eeF, eS, bM ESO 75-55; PRC C-67
IC 5162 22 08 02.9 -52 42 49 Gx (S) 15.2 14.4 0.8 13.2 0.9 × 0.3 114 0.005799 24.49 eF, eS, vE 95° ESO 189-25; AM 2204-525
IC 5173 A 22 14 44.5 -69 21 57 Gx (SBc) 15.2 14.5 0.7 13.4 1.4 × 0.3 73 0.010365 43.78 eF, S, mE 75° ESO 76-8; AM 2210-693; Southern Integral-sign
IC 5173 B 22 14 38.3 -69 22 03 Gx (Sc) 15.8 15.1 0.7 11.9 0.3 × 0.2 70 0.010621 44.86 eF, S, mE 75° ESO 76-8A; AM 2210-693; Southern Integral-sign
IC 5232 22 37 38.3 -68 52 17 Gx (Sc) 15.4 14.6 0.8 12.8 0.7 × 0.3 3 0.028947 122.2 eF, eeS, bM ESO 76-20
IC 5252 22 48 08.8 -68 54 10 Gx (SBbc) 13.7 12.9 0.8 12.7 1.2 × 0.8 172 0.012745 53.83 F, S, R, cbM ESO 76-25; IRAS 22446-6910
IC 5256 22 49 45.6 -68 41 25 Gx (SBd) 14.5 13.9 0.6 13.0 1.1 × 0.5 19 0.012689 53.60 vF, vS, cE 25°, cbM ESO 76-28; FAIR 611
IC 5257 22 52 16.4 -67 25 09 Gx (Sc) 15.2 14.5 0.7 13.0 0.7 × 0.4 13 0.040408 170.6 eF, eeS, stell N ESO 76-29; FAIR 199; IRAS 22489-6741
IC 5263 22 58 13.6 -69 03 06 Gx (SB0-a) 14.1 13.2 0.9 13.1 1.4 × 0.3 146 0.013146 55.53 cF, S, R, * in neb ESO 76-32; IRAS 22548-6919
IC 5279 23 03 02.6 -69 12 36 Gx (Sa) 14.4 13.5 0.9 13.2 1.3 × 0.8 27 0.013012 54.96 vF, vS, cE 40°, stell N ESO 77-1; AM 2259-692; IRAS 22597-6928
IC 5286 23 09 56.0 -68 15 12 Gx (Sbc) 16.2 15.4 0.8 13.4 0.9 × 0.2 114 0.029070 122.7 eeF, eS, mE 130°, 2 st s, susp ESO 77-5
IC 5288 23 11 44.3 -68 05 39 Gx (S0) 14.7 13.7 1.0 13.1 1.1 × 0.8 60 0.029240 123.5 eF, eS, alm *, susp ESO 77-6; AM 2308-682; IRAS 23085-6821
IC 5301 23 18 58.8 -69 33 45 Gx (Sc) 15.5 14.6 0.9 14.2 1.4 × 0.6 87 0.013566 57.30 eeF, eS, vF * f 1', susp ESO 77-12

Legend

Key to columns [277]
Name NGC/IC Designation
RA Right Ascension (J2000.0)
Dec Declination (J2000.0)
Type Object type
bMag Photographic (blue) magnitude
vMag Visual magnitude
B-V Difference of visual and blue magnitude
SB Surface brightness (mag/arcmin2)
Dim Dimensions (arcmin)
PA Position Angle (°)
z Redshift (from NED or LEDA)
D(z) Distance derived from z in Mpc, using D(z) = cz/H0, with Hubble Parameter H0 = 71 (km/s)/Mpc
MD Metric distance: for galaxies with S = 1, 6, 7 or 8 in Mpc (from NED); for other types with S = 2, 3, 4, or 5 in kpc
Dreyer Description See below
Identification, Remarks

Dreyer Description

Descriptions according to J.L.E. Dreyer [313, 314, 315]
ab about
alm almost
am among
annul annular or ring nebula
att attached
b brighter
bet between
biN binuclear
bn brightest to n side
bs brightest to s side
bp brightest to p side
bf brightest to f side
B bright
c considerably
chev chevelure
co coarse, coarsely
com cometic (cometary form)
comp companion
conn connected
cont in contact
C compressed
Cl cluster
d diameter
def defined
dif diffused
diffic difficult
dist distance, or distant
D double
e extremely, excessively
ee most extremely
er easily resolvable
exc excentric
E extended
f following (eastward)
F faint
g gradually
glob. globular
gr group
i irregular
iF irregular figure
inv involved, involving
l little (adv.); long (adj.)
L large
m much
m magnitude
M middle, or in the middle
n north
neb nebula
nebs nebulous
neby nebulosity
nf north following
np north preceding
ns north-south
nr near
N nucleus, or to a nucleus
p preceding (westward)
pf preceding-following
p pretty (adv., before F. B. L, S)
pg pretty gradually
pm pretty much
ps pretty suddenly
plan planetary nebula (same as PN)
prob probably
P poor (sparse) in stars
PN planetary nebula
r resolvable (mottled, not resolved)
rr partially resolved, some stars seen
rrr well resolved, clearly consisting of stars
R round
RR exactly round
Ri rich in stars
s suddenly (abruptly)
s south
sf south following
sp south preceding
sc scattered
sev several
st stars (pl.)
st 9... stars of 9th magnitude and fainter
st 9..13 stars of mag. 9 to 13
stell stellar, pointlike
susp suspected
S small in angular size
S* small (faint) star
trap trapezium
triangle triangle, forms a triangle with
triN trinuclear
v very
vv _very_
var variable
* a single star
*10 a star of 10th magnitude
*7-8 star of mag. 7 or 8
** double star (same as D*)
*** triple star
! remarkable
!! very much so
!!! a magnificent or otherwise interesting object

References

  • [277] Historische Deep-Sky Kataloge; Dr. Wolfgang Steinicke; klima-luft.de/steinicke; 2021-02-17
  • [313] A New General Catalogue of Nebulae and Clusters of Stars, being the Catalogue of the late Sir John F.W. Herschel, Bart., revised, corrected, and enlarged; Dreyer, J. L. E.; Memoirs of the Royal Astronomical Society. 49: 1–237 (1888); Bibcode:1888MmRAS..49....1D
  • [314] Index Catalogue of Nebulæ found in the years 1888 to 1894, with Notes and Corrections to the New General Catalogue; Dreyer, J. L. E.; Memoirs of the Royal Astronomical Society, Vol. 51, p.185; 1895; Bibcode:1895MmRAS..51..185D
  • [315] Second Index Catalogue of Nebulae and Clusters of Stars; containing objects found in the years 1895 to 1907, with Notes and Corrections to the New General Catalogue and to the Index Catalogue for 1888–94; Dreyer, J. L. E.; Memoirs of the Royal Astronomical Society. 59: 105–198 (1910); Bibcode:1910MmRAS..59..105D