Corrections to the SGC Page Galaxy Correction --- -- -- The accurate coordinates measured by Spellman, Madore, and Helou (PASP 101, 360, 1989; SMH) have been entered into version 1.2 of the SGC, and equinox 2000.0 and Galactic coordinates have been recomputed. 3 00 13 00 -32 27.6 T = -5.0, n(T) = 2, w(T) = 2.0; delete L, n(L), and w(L). See Notes (p. 251). 7 N0235B RA = 00 40 25, Dec = -23 49.1; = EU 474-G17. 7 00 36.9 -55 55 RA = 00 35.9. 20 01 39 27 -46 28.0 For T = -1.0, read T = 0.0. (RB) 21 01 48.1 -27 00 = EU 477-G 7 at 01 47 06 -26 59.6. 22 N0756 For T = 2.0, read T = -2.0. (RB) 26 02 19 19 -27 29.1 Wrong ESO galaxy taken for SGC object. Correct RA = 02 19 27, Dec = -27 30.4, Field-EU = 415-G22. (MS) 39 N1385 For Type = .SBS3?P, read Type = .SBS7*P; for T = 3, read T = 7. 40 N1395 For T = 2.0, read T = -5.0. 44 03 51.0 -39 19 = EU 302-G17 at 03 51 58 -39 19.5. 47 03 59.7 -52 58 For RA (2000) = 00.0, read 01.0. 62 05 14 02 -62 17.0 Two listings for this object. Weighted means of the diameter and axis ratios are [1.84 0.45], w(D,R) = 1.5. The second type should read ".SBS3*P". (SM) 65 05 43 26 -25 57.0b = EU 488-G 9 at 05 43 28, -25 57.1. (GP) 68 05 58 14 -21 40.3b = EU 555-G20 at 05 58 18, -21 40.3. (GP) 70 06 09 09 -21 35.2 For T = 9.0, read T = 9.5. (RB) 72 06 19.6 -55 39 RA = 06 23.6. 75 N2296=I452 This is a Galactic molecular cloud with a CO velocity of +16.8 km/sec (see Clemens and Barvainis, ApJS 68, 275, 1988; and Wouterloot and Brand, A&AS 80, 149, 1989). Delete this object. (BAS) 78 07 22 04 -68 44.9 = N2397B. Stromlo 13 and RC2 have an incorrect position for this object, but the data are for N2397A at 07 21 18, -69 01.2. 79 I2200 For Dec (1950) = -62 15.5, read -62 14.8. 81 07 53 01 -25 13.7 This is a Galactic reflection nebula around a poor open cluster. Delete this object. (BAS) 82 08 04 53 -76 55.7 Two listing for this object. Weighted means of the T, L, log D, and log R are 9.7 (w(T) = 3.0), 8.7 (3.0), 1.42 (2.5), and 0.04 (2.0). The first type should read ".SBS9..". (SM) 102 A1033-27 For T = -4.0, read T = -3.0. 103 10 37.7 -32 09 Probably a defect on plate J2919; not found on any of the issued film copies (F375, F376, or F437). Delete this object. (KS/GH) 111 11 37.0 -85 03 Probably a defect on plate J2961; not found on J4210 (film copy). Delete this object. 118 12 37 35 -40 29.3 Not = N4603B. 20' error in Stromlo 13, RC1, RC2. 118 12 37 46 -40 47.7b = N4603B. 20' error in Stromlo 13, RC1, RC2. 121 12 46.9 -4138b Position in SMH is incorrect. Correct position is 12 46 46.88 -41 37 41.8 (Guide Star Catalog). (HC) 121 12 48.1 -50 50 Noted as possible defect in Notes. Not found on the issued film copy (F219), so it is probably a defect on J2247 or on the film copy surveyed. Delete. (KS/GH) 123 12 50.8 -50 39 Noted as possible defect in Notes. Not found on the issued film copy (F219), so it is probably a defect on J2247 or on the film copy surveyed. Delete. (KS/GH) 135 13 32.7 -23 48 = EU 509-G74 at 13 32 56 -23 49.1. 136 13 35 52 -20 13.8 Type is IAB:(s)m: pec IV: (P048E and O, S048J and R). 137 13 47 10 -48 39.4 Two listings for this object. Weighted means of T, log D, and log R are 3.0 (0.5), 1.50 (1.5), and 0.40 (1.5). The first type should read ".SB.3?P". (SM) 146 14 41 08 -18 16.3 Probably not N5744. EU 580-G23 at 14 43 50 -18 18.2 is more likely to be N5744. 156 17 24 42 -63 59.0 Two listings for this object. Weighted means of T, L, log D, and log R are 4.5 (2.0), 3.5 (2.0), 1.41 (2.0), and 0.10 (2.0). The first type should read ".SXT4*.". (SM) 157 -- -- RA range is 17h 32m to 17h 46m. 175 N6851A RA = 20 02 11; also = N6861A. 175 N6851B RA = 20 02 02. 178 20 13.3 -46 27 = EU 284-IG45 at 20 13 16 -46 41.3. SGC Dec is 15' off. 182 20 29 57 -4 38.9 Dec = -42 38.9 (printing problem; electromagnetic version is correct). 187 20 57.0 -39 29 SMH suggest that this is a single galaxy. However, it appears to be a two-component ring galaxy with the early-type component superposed on the ring; it is similar to NGC 985. The improved coordinates in version 1.2 for the two components assume that SMH measured the position of the early-type component; the late-type (ring) component is centered a few arcsec south-south-east of the early-type component. 188 21 00 12 -35 26.3 = EU 402-G 3 at 21 00 21 -35 24.3. 192 21 19.3 -64 52 = EU 107-G32 at 21 29 13 -64 51.7. SGC RA is 10 minutes off. (KS/GH) 194 21 37.3 -33 54 = EU 403-G 3 at 21 27 33 -33 52.2. SGC RA is 10 minutes off. 194 N7097 Not = N7095 (see 21 45 48, -81 45.9). 195 21 43 51 -21 29.0 This is a globular cluster about 17 kpc distant from the sun (see Harris and Canterna, Ap. J. 239, 815, 1980). Delete this object. 196 21 45 48 -81 45.9 = N7095 (dec in GC and NGC is wrong; correct dec is in J. Herschel 1847). 236 N6861B Last line of note: for "...not found.", read "... = N6851A." 236 N6851A = N6861A. 246 I4858=I4857 For "I4857, Sc sp, ...", read "Sc sp, ...." 293 2233-617A,B For "Com comp 0.2 sf ...", read "Com comp 0.2 sp ..." --- -- -- Due to a programming bug (mea culpa; HGCJr) in converting the 1950.0 declinations from degrees, minutes, and tenths of minutes to degrees, minutes, and seconds for the precession routine, it is possible for the 2000.0 declinations listed in the printed version of the SGC to be up to 0.7 arcmin in error. The machine-readable version has been corrected. These corrections are from HGCJr unless noted: (KS/GH) = found by Kathleen Spellman, communicated by George Helou, September 1988; (RB) = found by Ron Buta, October/November 1988; (SM) = found by Shyamal Mitra, January 1990; (GP) = found by Georges Paturel, communicated January 1991; (MS) found by Marion Schmitz, May 1991; (BAS) = found by Brian A. Skiff, November 1993. 30 November 1993