Candidate atmospheric extinction photometric fields version: 2021 Oct 26 --- SA 140-84 extinction field center: 0 03 45 -28 44 (J2000) offset to pick up additional stars Name RA (J2000) Dec pmA pmD V B-V U-B V-R R-I V-I z MK references/notes SA 140- 84 0 03 38.09 -28 41 47.0 +105 -018 11.961 0.668 0.136 0.379 0.363 0.741 11.622 L83b n=9,6,3 errors 0.0030,0.0017,0.0027,0.0012,0.0035,0.0040; refcat2 z error 0.020; CD-29 18942 SA 140- 85 0 03 38.51 -28 37 25.4 +018 +002 12.223 0.718 0.204 0.395 0.368 0.763 11.849 L83b n=9,6,3 errors 0.0070,0.0050,0.0053,0.0075,0.0035,0.0040; refcat2 z error 0.012; CD-29 18943 GSC 6418-0628 0 03 17.86 -28 47 49.0 +037 -005 13.14 0.92 12.611 APASS candidate; refcat2 z error 0.012 GSC 6418-0498 0 03 26.99 -28 45 23.6 +010 -015 12.69 1.01 12.032 APASS candidate; refcat2 z error 0.027 CD-29 18944 0 03 39.85 -28 50 32.8 +014 -009 12.04 0.59 11.870 APASS candidate; refcat2 z error 0.012 CD-29 18948 0 04 03.77 -28 48 15.2 -016 -008 11.59 1.04 10.964 APASS candidate; refcat2 z error 0.012 GSC 6418-0985 0 04 14.20 -28 47 04.3 +024 -048 12.93 0.70 12.614 APASS candidate; refcat2 z error 0.012 --- NGC 253 extinction field center: 0 47 00 -25 25 (J2000) Name RA (J2000) Dec pmA pmD V B-V U-B V-R R-I V-I z MK references/notes NGC 253 Alc A 0 47 34.81 -25 23 41.9 +016 +001 8.90 0.55 0.08 0.33 0.34 0.67 G0V Alcaino & Liller 1984AJ.....89..814A; Olsen V=8.899; HD 4572 NGC 253 Alc B 0 47 20.33 -25 22 51.4 -012 +019 9.30 0.60 0.16 0.36 0.36 0.72 8.982 G2V Alcaino & Liller 1984AJ.....89..814A; refcat2 z error 0.015; HD 4555 NGC 253 Alc C 0 47 32.40 -25 28 10.8 +033 +003 10.80 0.51 0.12 0.31 0.29 0.60 10.613 Alcaino & Liller 1984AJ.....89..814A; refcat2 z error 0.012; CD-26 253 NGC 253 Alc D 0 46 33.55 -25 27 32.9 -001 -001 11.65 0.64 0.28 0.37 0.35 0.72 11.346 Alcaino & Liller 1984AJ.....89..814A; refcat2 z error 0.020; CD-26 249 NGC 253 Alc F 0 47 13.61 -25 30 03.1 +012 -015 13.89 0.51 -0.01 13.603 G3V Alcaino 1981A&A....97..201A; refcat2 z error 0.008; GSC 6421-1374 NGC 253 Alc P 0 46 26.96 -25 23 15.0 +019 +016 11.25 0.78 0.39 0.44 0.40 0.84 10.781 Alcaino & Liller 1984AJ.....89..814A; refcat2 z error 0.012; CD-26 248 (chart star V) 11.24 0.81 0.37 Hanes & Grieve 1982MNRAS.198..193H GSC 6421-1317 0 46 21.26 -25 25 29.8 +017 -013 13.66 0.56 13.404 APASS data; refcat2 z error 0.008 GSC 6421-1824 0 46 44.77 -25 21 44.0 +003 +008 13.08 0.67 12.711 APASS data; refcat2 z error 0.012 --- NGC 1097 extinction field center: 2 46 54 -30 17 (J2000) Name RA (J2000) Dec pmA pmD V B-V U-B V-R R-I V-I z MK references/notes NGC 1097 1 2 46 56.74 -30 15 15.7 +012 +013 11.45 0.65 0.17 0.36 0.35 0.71 11.118 Hamuy & Maza 1989AJ.....97..720H, errors all 0.01; refcat2 z error 0.012; CD-30 1038 N NGC 1097 2 2 46 58.06 -30 16 49.1 +048 -020 11.51 0.73 0.30 0.41 0.36 0.77 11.103 Hamuy & Maza 1989AJ.....97..720H; refcat2 z error 0.012; CD-30 1038 S NGC 1097 3 2 46 34.79 -30 11 57.7 +001 -005 13.04 1.23 1.15 0.65 0.61 1.26 12.036 Hamuy & Maza 1989AJ.....97..720H; refcat2 z error 0.020 NGC 1097 4 2 46 42.49 -30 22 57.2 +008 -014 13.27 0.64 0.09 0.38 0.36 0.74 12.925 Hamuy & Maza 1989AJ.....97..720H, R-I error 0.02; refcat2 z error 0.013 NGC 1097 5 2 46 35.70 -30 20 45.6 -001 +002 13.71 0.68 0.14 0.40 0.39 0.79 13.321 Hamuy & Maza 1989AJ.....97..720H; refcat2 z error 0.012 CD-30 1039 2 47 13.84 -30 10 22.5 +035 +019 12.59 0.55 12.371 APASS candidate; refcat2 z error 0.012 CD-30 1040 2 47 20.68 -30 16 36.4 +010 +001 12.49 0.52 12.342 APASS candidate; refcat2 z error 0.027 GSC 7011-0748 2 47 19.21 -30 23 32.8 -003 -008 13.06 0.67 12.805 APASS candidate; refcat2 z error 0.012 --- NGC 1904-NW extinction field center: 5 23 39 -24 21 (J2000) --- Stetson 2021 Jun 21 data --- color ranges: 0.48 < B-V < 1.22; -0.09 < U-B < 1.24 Name RA (J2000) Dec pmA pmD V B-V U-B V-R R-I V-I z MK references/notes NGC 1904-S615 5 23 07.48 -24 14 08.1 +002 +002 12.289 0.982 0.688 1.016 11.628 Stetson n~15 errors 0.0045,0.0064,0.0054,,,0.0082; refcat2 z error 0.012; CD-24 3042 NGC 1904-S638 5 23 20.98 -24 18 07.0 +008 +001 12.019 0.499 0.061 0.577 11.878 Stetson n~20 errors 0.0038,0.0067,0.0070,,,0.0101; refcat2 z error 0.020; CD-24 3045 NGC 1904-S639 5 23 21.43 -24 21 33.0 +004 +002 12.523 1.033 0.842 1.069 11.771 Stetson n~20 errors 0.0030,0.0052,0.0046,,,0.0083; refcat2 z error 0.020 NGC 1904-S352 5 23 24.24 -24 16 53.7 +006 +007 13.450 0.488 -0.044 0.593 13.283 Stetson n~20 errors 0.0030,0.0054,0.0096,,,0.0097; refcat2 z error 0.009 NGC 1904-S655 5 23 27.51 -24 23 25.3 -001 +001 12.754 0.757 0.208 0.847 12.264 Stetson n~25 errors 0.0051,0.0088,0.0076,,,0.0090; refcat2 z error 0.020 CD-24 3053 5 23 39.02 -24 21 14.7 +005 -006 10.42 1.24 9.444 APASS/ASAS-3 candidate; refcat2 z error 0.042 NGC 1904-S690 5 23 50.36 -24 22 00.2 -004 +002 12.280 0.484 -0.094 0.579 12.124 Stetson n~120 errors 0.0010,0.0016,0.0082,,,0.0012; refcat2 z error 0.021 NGC 1904-S695 5 23 53.76 -24 19 44.8 +020 +024 12.253 0.822 0.404 0.838 11.789 Stetson n~140 errors 0.0007,0.0016,0.0021,,,0.0011; refcat2 z error 0.012 NGC 1904-S227 5 23 59.13 -24 26 40.0 +001 +014 13.310 0.758 0.195 0.774 12.864 Stetson n~150 errors 0.0014,0.0022,0.0072,,,0.0016; refcat2 z error 0.012 NGC 1904-S704 5 23 59.69 -24 15 03.2 -002 -002 13.393 1.218 1.242 1.254 12.431 Stetson n~20 errors 0.0043,0.0056,0.0050,,,0.0116; refcat2 z error 0.020 NGC 1904-S406 5 24 02.98 -24 15 25.6 +003 -002 14.395 0.521 -0.087 0.601 14.203 Stetson n~15 errors 0.0032,0.0043,0.0079,,,0.0096; refcat2 z error 0.009 NGC 1904-S721 5 24 11.08 -24 24 10.4 +007 -010 13.161 0.838 0.389 0.846 12.648 Stetson n~150 errors 0.0009,0.0014,0.0020,,,0.0013; refcat2 z error 0.012 --- MCG -05-23-16 extinction field center: 9 47 24 -30 52 (J2000) picks up additional stars NW --- Hamuy & Maza errors mostly 0.01, a few 0.02 --- color ranges: 0.21 < B-V < 1.20; -0.01 < U-B < 1.16 Name RA (J2000) Dec pmA pmD V B-V U-B V-R R-I V-I z MK references/notes MCG -05-23-16 1 9 47 38.47 -30 54 22.0 -003 -011 11.58 0.57 0.03 0.34 0.33 0.67 11.321 Hamuy & Maza 1989AJ.....97..720H; refcat2 z error 0.021; CD-30 7905 MCG -05-23-16 2 9 47 29.69 -30 56 08.7 -021 +033 12.14 0.55 -0.01 0.34 0.34 0.68 11.854 Hamuy & Maza 1989AJ.....97..720H; refcat2 z error 0.012; CD-30 7900 MCG -05-23-16 3 9 47 36.65 -30 58 28.0 +004 -007 12.32 0.66 0.09 0.37 0.36 0.73 11.957 Hamuy & Maza 1989AJ.....97..720H; refcat2 z error 0.012 MCG -05-23-16 4 9 47 52.30 -30 56 54.1 -013 +007 13.43 0.62 0.11 0.34 0.32 0.66 13.136 Hamuy & Maza 1989AJ.....97..720H; refcat2 z error 0.015 MCG -05-23-16 5 9 47 21.73 -30 57 43.5 -007 +002 12.65 1.20 1.16 0.62 0.55 1.17 11.771 Hamuy & Maza 1989AJ.....97..720H; refcat2 z error 0.023 MCG -05-23-16 6 9 47 38.38 -30 55 45.6 -018 -005 13.87 0.82 0.44 0.46 0.42 0.88 13.340 Hamuy & Maza 1989AJ.....97..720H; refcat2 z error 0.012 MCG -05-23-16 7 9 47 48.84 -30 56 58.4 -004 -000 14.97 0.61 0.03 0.35 14.619 Hamuy & Maza 1989AJ.....97..720H; refcat2 z error 0.012 CD-30 7893 9 46 57.14 -30 48 54.7 -016 +011 10.87 0.97 APASS candidate TYC 7168-1031-1 9 47 04.08 -30 46 26.3 -025 +004 12.11 0.94 11.458 APASS candidate; refcat2 z error 0.020 CD-30 7897 9 47 12.84 -30 45 29.7 -009 +001 11.77 0.24 11.901 APASS candidate; refcat2 z error 0.021 GSC 7168-1044 9 47 48.09 -30 46 30.1 -007 -008 12.42 0.52 12.222 APASS candidate; refcat2 z error 0.012 GSC 7168-0783 9 47 12.03 -30 55 38.8 -008 +003 13.35 0.21 13.549 APASS candidate; refcat2 z error 0.021 --- NGC 4590-S = Messier 68 field center: 12 39 24 -26 55 (J2000) --- Stetson 2020 Sep 14 data --- galaxy on S side is MCG -04-30-09 (rv 2994 km/sec) Name RA (J2000) Dec pmA pmD V B-V U-B V-R R-I V-I z MK references/notes NGC 4590 ALA A 12 39 46.97 -26 54 44.6 -013 -013 8.87 1.17 1.19 0.62 0.54 1.16 K2III Alcaino et al 1987AJ.....93.1464A; HD 110087 8.884 1.176 1.190 Mermio means NGC 4590 ALA B 12 38 54.63 -26 49 47.8 -026 +008 11.71 0.92 0.53 0.48 0.48 0.96 11.098 Alcaino et al 1987AJ.....93.1464A; refcat2 z error 0.012; CD-26 9249 NGC 4590 ALA C 12 39 35.32 -26 53 28.9 -016 -012 12.43 0.54 -0.06 0.32 0.32 0.64 12.200 Alcaino et al 1987AJ.....93.1464A; refcat2 z error 0.012; CPD-26 4769 NGC 4590 ALA D 12 39 53.68 -26 53 06.0 -003 +002 12.96 0.44 -0.20 0.29 0.33 0.62 12.741 Alcaino et al 1987AJ.....93.1464A; refcat2 z error 0.020 NGC 4590 ALA E 12 39 51.48 -26 51 46.4 -003 +002 13.393 1.087 0.649 0.624 1.273 12.406 Stetson S622 n~20 errors 0.0019,0.0043,,0.0075,0.0074,0.0023; refcat2 z error 0.020 13.41 1.10 0.65 0.62 0.63 1.25 Alcaino et al 1987AJ.....93.1464A GSC 6691-0080 12 39 18.94 -26 49 41.9 -003 +002 13.488 1.011 0.606 0.588 1.193 12.609 Stetson S203 n~30 errors 0.0017,0.0073,,0.0098,0.0097,0.0020; refcat2 z error 0.020; cluster member 13.473 1.023 1.203 Walker 1994AJ....108..555W --- additional stars CD-26 9248 12 38 54.59 -26 58 59.1 -031 -029 10.14 1.12 APASS candidate GSC 6691-0051 12 39 02.85 -27 00 54.9 -018 -004 13.09 0.75 12.690 APASS candidate; refcat2 z error 0.020 GSC 6691-0151 12 39 03.77 -26 51 20.3 -003 +002 13.70 1.03 12.802 APASS candidate; refcat2 z error 0.020 GSC 6691-0553 12 39 11.25 -26 56 10.8 -015 -023 12.37 0.76 11.969 APASS candidate; refcat2 z error 0.012 HD 109986 12 39 12.55 -26 55 50.1 -070 -004 9.27 0.93 G8IV Mermio means GSC 6691-0338 12 39 33.18 -26 57 58.4 -040 -022 12.79 0.73 12.390 APASS candidate; refcat2 z error 0.012 LHS 2597 12 39 36.44 -26 58 11.0 -585 -189 15.32 1.83 11.841 APASS candidate; refcat2 z error 0.020; 11pc distance GSC 6691-0161 12 39 43.21 -27 00 11.4 -015 +004 13.49 1.00 12.767 APASS candidate; refcat2 z error 0.020 GSC 6691-0144 12 39 55.92 -27 00 24.2 +001 -002 11.95 1.12 11.139 APASS candidate; refcat2 z error 0.021 --- IC 4329A extinction field center: 13 49 19 -30 18 30 (J2000) Name RA (J2000) Dec pmA pmD V B-V U-B V-R R-I V-I z MK references/notes IC 4329A 10 13 48 51.65 -30 22 00.6 -004 -005 12.63 1.00 0.67 0.52 0.50 1.02 11.939 Hamuy & Maza 1989AJ.....97..720H errors all 0.01; refcat2 z error 0.012; GSC 7279-0383 12.631 1.004 1.077 Stetson S9 n=7 errors 0.0053,0.0128,,,,0.0057 IC 4329A 1 13 48 57.85 -30 22 04.8 -034 -024 10.34 0.73 0.26 0.41 0.39 0.80 9.895 Hamuy & Maza 1989AJ.....97..720H errors all 0.01; refcat2 z error 0.012; CD-29 10609, x-ray bright (var?) IC 4329A-S24 13 49 06.57 -30 20 36.6 -020 -014 13.224 0.801 0.865 12.774 Stetson n=7 errors 0.0040,0.0124,0.0057; refcat2 z error 0.021; GSC 7279-1171 IC 4329A 8 13 49 30.59 -30 23 37.6 -015 -006 11.71 1.27 1.24 0.70 0.65 1.35 10.667 Hamuy & Maza 1989AJ.....97..720H errors all 0.01; refcat2 z error 0.025; CD-29 10612 IC 4329A 2 13 49 38.63 -30 18 04.1 -011 -005 11.10 1.58 1.83 1.03 1.30 2.33 8.911 Hamuy & Maza 1989AJ.....97..720H errors all 0.01 (V 0.03); refcat2 z error 0.020; CD-29 10615, sl var IC 4329A 5 13 49 43.92 -30 19 47.8 -016 -019 14.07 0.57 -0.04 0.35 0.35 0.70 13.768 Hamuy & Maza 1989AJ.....97..720H errors all 0.01; refcat2 z error 0.012; GSC 7279-0591 IC 4329A 3 13 49 47.35 -30 16 34.7 -004 +008 13.00 0.65 0.14 0.36 0.36 0.72 12.672 Hamuy & Maza 1989AJ.....97..720H errors all 0.01; refcat2 z error 0.012; GSC 7279-0125 IC 4329A 4 13 49 51.14 -30 16 29.3 -009 -012 13.44 0.61 0.11 0.36 0.35 0.71 13.133 Hamuy & Maza 1989AJ.....97..720H errors all 0.01; refcat2 z error 0.019; GSC 2779-0292 13.429 0.669 0.727 Stetson S65 n=7 errors 0.0050,0.0127,,,,0.0065 IC 4329A 9 13 49 59.24 -30 20 05.2 -003 +009 13.91 0.57 -0.02 0.32 0.34 0.66 13.659 Hamuy & Maza 1989AJ.....97..720H errors all 0.01; refcat2 z error 0.012; GSC 7279-0481 13.905 0.592 0.683 Stetson S70 n=7 errors 0.0037,0.0123,,,,0.0056 --- SA 132-801 field center: 16 18 40 -15 09 (J2000) --- color ranges: 0.60 < B-V < 1.81; 0.13 < U-B < 2.10 --- Henden V-I often significantly different from V-R + R-I Name RA (J2000) Dec pmA pmD V B-V U-B V-R R-I V-I z MK references/notes SA 132- 801 16 18 37.19 -15 08 50.7 -013 +000 10.839 1.806 2.098 1.256 1.468 2.721 9.197 BD-14 4395, L83b n=10,7,4 errors 0.0114,0.0044,0.0196,0.0075,0.0060,0.0120; SkyM1.1 z, Landolt suggests sl var (unsurprisingly), but colors should be stable 10.851 1.813 2.059 1.252 1.471 2.753 Henden n=78; errors 0.032 0.015 0.041 0.029 0.024 0.015; ASAS-3 sl var; V-R + R-I = 2.723 SA 132- 813 16 18 44.49 -15 09 53.6 +008 -031 11.486 0.817 0.339 0.490 0.467 0.957 10.889 L83b n=10,7,4 errors 0.0038,0.0019,0.0060,0.0045,0.0045,0.0055; SkyM1 z, refcat2 z=10.870 11.479 0.819 0.348 0.488 0.469 0.975 Henden n=78; errors 0.022 0.015 0.036 0.029 0.025 0.030; V-R + R-I = 0.957 TYC 6202-0047-1 16 18 32.06 -15 12 42.6 -002 -006 12.081 0.596 0.156 0.378 0.368 0.757 11.688 Henden n=78; errors 0.024 0.019 0.036 0.036 0.024 0.011; refcat2 z, SkyM2 z=11.663 GSC 6202-0147 16 18 35.57 -15 08 38.8 -009 -052 12.879 1.379 1.291 0.895 0.834 1.755 11.415 Henden n=77; errors 0.024 0.016 0.040 0.030 0.027 0.013; refcat2 z, SkyM2 z=11.336 GSC 6202-0013 16 18 40.89 -15 09 27.7 -002 -002 13.333 1.302 1.161 0.730 0.672 1.426 12.123 Henden n=78; errors 0.024 0.018 0.061 0.031 0.028 0.004; SkyM2 z, refcat2 z is wrong GSC 6202-0229 16 18 59.68 -15 07 13.3 -005 -015 12.630 0.773 0.249 0.492 0.481 0.972 12.010 Henden n=78; errors 0.026 0.020 0.035 0.031 0.027 0.009; refcat2 z, SkyM2 z=11.973 GSC 6202-0705 16 19 08.29 -15 07 29.4 -004 -004 13.095 1.279 1.146 0.737 0.660 1.405 11.959 Henden n=7; errors 0.011 0.020 0.053 0.026 0.013 0.026; refcat2 z, SkyM2 z=11.893 GSC 6202-0751 16 19 08.92 -15 03 37.7 -004 +003 12.482 0.668 0.129 0.458 0.432 0.893 11.956 Henden n=7; errors 0.013 0.015 0.049 0.021 0.018 0.019; refcat2 z, SkyM2 z=11.902 GSC 6202-1322 16 19 10.82 -15 02 25.7 +004 -001 11.886 1.654 1.915 0.973 0.834 1.820 10.267 Henden n=7; errors 0.022 0.027 0.044 0.022 0.015 0.034; SkyM1.1 z --- field center: 17 38 32 -23 53 10 (J2000) --- Stetson 2021 Jun 18 data --- color ranges: 0.43 < B-V < 1.95; -0.14 < U-B < 2.22 Name RA (J2000) Dec pmA pmD V B-V U-B V-R R-I V-I z MK references/notes NGC 6401 S 1 17 38 12.67 -23 54 37.2 +001 +001 12.053 0.655 0.241 0.948 11.522 Stetson n~18 errors 0.0041,0.0079,0.0078,,,0.0055; refcat2 z, SkyM2 z=11.463 NGC 6401 S 6 17 38 21.00 -23 58 11.8 -002 -000 10.846 0.425 -0.135 0.667 10.594 Stetson n~18 errors 0.0064,0.0139,0.0126,,,0.0104; SkyM2 z; CD-23 13476 = CPD-23 6624 NGC 6401 S 7 17 38 24.21 -23 50 42.6 -024 -007 11.625 1.075 0.543 1.303 10.593 Stetson n~18 errors 0.0036,0.0073,0.0080,,,0.0052; SkyM2 z; CD-23 13478 NGC 6401 S17 17 38 33.23 -23 50 40.9 -004 -011 11.046 1.951 2.222 2.251 Stetson n~15 errors 0.0064,0.0102,0.0108,,,0.0113; CD-23 13480; ASAS-3/ASAS-SN not var NGC 6401 S64 17 38 51.20 -23 48 04.7 -001 +001 11.968 0.832 0.323 1.073 11.348 Stetson n~18 errors 0.0089,0.0118,0.0090,,,0.0163; refcat2 z, SkyM2 z=11.300 NGC 6401 S67 17 38 54.44 -23 54 38.2 -008 -019 12.314 1.541 1.414 1.693 Stetson n~15 errors 0.0034,0.0058,0.0062,,,0.0048; GSC 6827-0702 --- GSPC S596 field center: 20 19 54 -19 53 (J2000) --- nominal color range: 0.58 < B-V < 1.52 Name RA (J2000) Dec pmA pmD V B-V U-B V-R R-I V-I z MK references/notes GSPC S596-C 20 19 20.92 -19 58 18.9 -008 +011 10.55 1.29 1.20 9.580 1988ApJS...68....1L n=2 errors 0.01,0.00; SkyM2 z, BD-20 5888 = CPD-20 7834, DENIS I=9.35 10.54 1.27 APASS 10.54 ASAS-3 HD 193190 20 19 33.18 -19 54 46.2 -024 -032 7.71 1.08 K0III APASS 7.72 ASAS-3 GSPC S596-B 20 19 36.17 -19 53 04.1 +004 +000 10.06 1.15 1.12 9.198 1988ApJS...68....1L n=2 errors 0.00,0.00; SkyM2 z, BD-20 5890 = CPD-20 7837, DENIS I=8.94 10.07 1.11 APASS 10.06 ASAS-3 GSPC S596-F 20 19 46.50 -19 49 14.7 +007 -029 13.64 0.85 0.95 13.037 1988ApJS...68....1L n=2 errors 0.01,0.03; refcat2 z, SkyM2 z=13.033, DENIS I=12.69 13.590 0.887 0.517 GSPC v2.4 n=2 errors 0.007,0.010,,0.010 13.61 0.90 APASS 13.67 ASAS-3 HD 193242 20 19 54.29 -19 54 46.6 -021 -099 9.160 0.764 0.094 0.654 1981MNSSA..40...14D assume all errors 0.015; SkyM1.1 z unc=0.084; metal-weak G/K-subgiant 9.17 0.76 1988ApJS...68....1L; GSPC S596-A n=2 errors 0.01,0.00 9.15 0.77 APASS 9.16 ASAS-3 GSPC S596-D 20 19 56.03 -19 52 27.1 -012 -009 12.19 0.71 0.84 11.767 1988ApJS...68....1L n=2 errors 0.01,0.00; refcat2 z, SkyM2 z=11.752, DENIS I=11.35 12.16 0.69 APASS 12.16 ASAS-3 GSPC S596-G 20 19 58.98 -19 48 41.0 +013 -001 14.62 0.67 0.70 14.334 APASS data; refcat2 z, SkyM2 z=14.316, DENIS I=13.92 14.683 0.607 0.379 GSPC v2.4 n=2 errors 0.007,0.010,0.010 14.75 0.61 1988ApJS...68....1L n=2 errors 0.10,0.04 (V wrong) GSPC S596-E 20 20 27.07 -19 52 04.7 -001 -008 13.26 0.58 0.66 13.005 1988ApJS...68....1L n=2 errors 0.01,0.00; refcat2 z, SkyM2 z=13.002, DENIS I=12.60 13.26 0.56 APASS 13.27 ASAS-3 CPD-20 7846 20 20 28.08 -19 57 57.3 -012 -018 8.85 1.52 APASS 8.79 ASAS-3 --- Mrk 509 field center: 20 44 09 -10 43 00 (J2000) --- color ranges (excl Mark A): 0.55 < B-V < 0.97; -0.05 < U-B < 0.82 --- Stetson 2021 Jan 22 results --- Hamuy & Maza errors all 0.01 mag Name RA (J2000) Dec pmA pmD V B-V U-B V-R R-I V-I z MK references/notes MarkA-CL163 20 43 38.98 -10 43 29.7 +001 -002 12.593 0.965 0.641 0.527 0.499 1.026 11.905 CL2013 n=44 errors 0.0012,0.017,0.0018,0.0017,0.0015,0.0015; refcat2 z error 0.020 12.600 0.972 0.642 0.552 0.470 1.022 Henden n=10; errors 0.025 0.039 0.035 0.048 0.046 9.999 MarkA-CL197 20 43 42.99 -10 48 17.9 +107 -012 13.859 0.669 0.116 0.384 0.369 0.753 13.501 CL2013 n=44 errors 0.0008,0.0014,0.0020,0.0013,0.0012,0.0011; refcat2 z error 0.008 13.860 0.668 0.125 0.395 0.357 0.752 Henden n=10; errors 0.015 0.024 0.030 0.016 0.029 9.999 MarkA-CL204 20 43 44.23 -10 46 10.2 +003 -009 12.905 0.939 0.583 0.513 0.490 1.003 12.249 CL2013 n=44 errors 0.0011,0.0014,0.0016,0.0015,0.0015,0.0016; refcat2 z error 0.020 12.909 0.948 0.558 0.523 0.480 1.003 Henden n=10; errors 0.020 0.028 0.047 0.012 0.020 9.999 Mark A2 20 43 55.00 -10 45 31.3 +007 -001 14.540 0.666 0.096 0.379 0.371 0.751 14.197 L92 = L2009 n=21,10 errors 0.0028,0.0031,0.0046,0.0024,0.0050,0.0059; refcat2 z error 0.0014 14.538 0.654 0.095 0.376 0.364 0.740 CL2013 n=44 errors 0.0014,0.0021,0.0021,0.0017,0.0014,0.0018 14.545 0.660 0.086 0.377 0.367 0.744 Stetson errors 0.0012,0.0018,0.0022,0.0017,0.0018,0.0018 14.543 0.662 0.110 0.385 0.361 0.746 Henden n=13; errors 0.019 0.028 0.029 0.025 0.019 9.999 Mark A 20 43 59.23 -10 47 41.7 +026 +006 13.258 -0.242 -1.162 -0.115 -0.125 -0.241 14.124 L92 n=39,22 errors 0.0019,0.0018,0.0038,0.0018,0.0045,0.0048; PS2 z n=8 error 0.0053; SkyM2 z=14.127 13.256 -0.246 -1.159 -0.114 -0.124 -0.238 L2009 n=88,71 errors 0.0008,0.0008,0.0021,0.0008,0.0027,0.0029 13.263 -0.247 -1.158 -0.115 -0.141 -0.256 Stetson n~250 errors 0.0012,0.0019,0.0032,0.0019,0.0023,0.0022 13.263 -0.222 -1.114 -0.139 -0.095 -0.234 Henden n=13; 0.027 0.022 0.030 0.017 0.024 9.999 Mrk 509 Hamuy B 20 44 00.39 -10 43 06.0 +008 -004 13.126 0.547 -0.021 0.321 0.316 0.637 12.893 Stetson S26 n~100 errors 0.0010,0.0015,0.0020,0.0013,0.0014,0.0015; refcat2 z, SkyM2 z=12.882 13.121 0.546 -0.006 0.325 0.315 0.640 CL2013 n=44 errors 0.0009,0.0012,0.0017,0.0011,0.0011,0.0012 13.125 0.549 0.000 0.337 0.292 0.629 Henden n=10; 0.011 0.028 0.028 0.034 0.083 9.999 13.12 0.55 0.00 0.32 0.31 0.63 Hamuy & Maza 1989AJ.....97..720H Mrk 509 Hamuy E 20 44 02.98 -10 40 22.7 -007 -015 11.377 0.907 0.606 0.516 0.478 0.994 10.731 CL2013 n=39 errors 0.0009,0.0011,0.0012,0.0017,0.0021,0.0017; refcat2 z, SkyM2 z=10.696 11.38 0.92 0.60 0.51 0.48 0.99 Hamuy & Maza 1989AJ.....97..720H Mrk 509 Hamuy H 20 44 03.29 -10 37 42.3 -006 +007 13.318 0.535 -0.033 0.329 0.319 0.648 13.040 CL2013 n=35 errors 0.0013,0.0024,0.0026,0.0021,0.0024,0.0021; PS2 z error 0.016; close pair 13.30 0.54 -0.04 0.31 0.33 0.64 Hamuy & Maza 1989AJ.....97..720H Mark A3 20 44 03.82 -10 45 37.9 +012 -027 14.818 0.938 0.651 0.587 0.510 1.098 14.062 L92 = L2009 n=21,10 errors 0.028,0.0031,0.0046,0.0024,0.0050,0.0059; refcat2 z error 0.009 14.804 0.939 0.667 0.576 0.519 1.095 CL2013 n=44 errors 0.0014,0.0021,0.0021,0.0017,0.0014,0.0018 14.820 0.942 0.658 0.584 0.513 1.097 Stetson errors 0.0011,0.0019,0.0028,0.0016,0.0017,0.0016 14.812 0.937 0.696 0.580 0.515 1.095 Henden n=13; errors 0.014 0.030 0.037 0.020 0.021 9.999 Mrk 509 Hamuy I 20 44 09.18 -10 39 10.8 -006 -015 14.417 0.600 -0.052 0.357 0.363 0.720 14.123 Stetson S864 errors 0.0011,0.0016,0.0022,0.0017,0.0020,0.0019; PS2 z error 0.004 14.422 0.592 -0.023 0.364 0.363 0.727 CL2013 n=39 errors 0.0010,0.0021,0.0026,0.0019,0.0021,0.0016 14.43 0.59 -0.03 0.37 0.37 0.74 Hamuy & Maza 1989AJ.....97..720H Mrk 509 Hamuy G 20 44 10.69 -10 39 23.2 +003 -052 12.551 0.572 -0.045 0.372 0.369 0.741 12.217 CL2013 n=39 errors 0.0007,0.0013,0.0018,0.0011,0.0011,0.0010; refcat2 z, SkyM2 z=12.205 12.55 0.58 -0.05 0.36 0.38 0.74 Hamuy & Maza 1989AJ.....97..720H Mrk 509 Hamuy D 20 44 11.21 -10 41 52.4 +005 +001 12.404 0.565 0.097 0.329 0.313 0.642 12.184 CL2013 n=43 errors 0.0008,0.0012,0.0017,0.0018,0.0018,0.0012; refcat2 z, SkyM2 z=12.181 12.416 0.577 0.089 0.331 0.307 0.638 Henden n=9; 0.016 0.021 0.033 0.017 0.032 9.999 12.41 0.57 0.09 0.32 0.31 0.63 Hamuy & Maza 1989AJ.....97..720H Mrk 509 Hamuy A 20 44 15.08 -10 44 41.7 -008 -012 14.547 0.661 0.136 0.373 0.346 0.719 14.230 Stetson S1 errors 0.0011,0.0017,0.0028,0.0021,0.0022,0.0017; refcat2 z error 0.008 14.537 0.648 0.154 0.371 0.356 0.727 CL2013 n=42 errors 0.0016,0.0020,0.0020,0.0023,0.0019,0.0019 14.555 0.657 0.181 0.383 0.354 0.737 Henden n=10; errors 0.010 0.031 0.019 0.031 0.033 9.999 14.54 0.67 0.17 0.35 0.36 0.71 Hamuy & Maza 1989AJ.....97..720H MarkA-CL567 20 44 28.16 -10 41 05.7 +017 -019 11.064 0.969 0.816 0.529 0.457 0.986 10.435 CL2013 n=35 errors 0.0015,0.0021,0.0026,0.0040,0.0046,0.0031l PS2 z error 0.012, SkyM1.2 z=10.420 GSC 5760-1565 20 44 39.32 -10 46 20.6 -004 -013 11.83 1.67 ASAS-3/APASS candidate --- PKS 2155-304 extinction field center: 21 58 40 -30 16 (J2000) --- nominal color range: 0.40 < B-V < 0.90 Name RA (J2000) Dec pmA pmD V B-V U-B V-R R-I V-I z MK references/notes PKS 2155-304 1 21 59 01.52 -30 09 30.0 +017 -012 9.17 0.40 -0.02 0.23 0.24 0.47 F2V Hamuy & Maza 1989AJ.....97..720H errors all 0.01; HD 208756 PKS 2155-304 2 21 59 02.50 -30 10 46.6 +049 -009 12.05 0.69 0.15 0.38 0.37 0.75 11.677 Hamuy & Maza 1989AJ.....97..720H; refcat2 z error 0.012; CD-30 18947 PKS 2155-304 3 21 59 05.35 -30 10 51.0 +077 +010 13.00 0.90 0.58 0.53 0.45 0.98 12.345 Hamuy & Maza 1989AJ.....97..720H; refcat2 z error 0.021 PKS 2155-304 4 21 58 42.34 -30 10 27.4 +007 -009 14.28 0.65 0.15 0.36 0.36 0.72 13.954 Hamuy & Maza 1989AJ.....97..720H; refcat2 z error 0.011 PKS 2155-304 5 21 58 58.01 -30 13 29.1 +007 -030 15.35 0.66 -0.01 0.34 0.32 0.66 15.039 Hamuy & Maza 1989AJ.....97..720H (U-B,R-I errors 0.02); refcat2 z error 0.011 --- additional stars GSC 7488-1267 21 58 08.26 -30 11 58.1 -009 +001 12.63 0.90 12.053 APASS candidate; refcat2 z error 0.012 CD-30 18939 21 58 12.50 -30 17 46.5 +001 -027 12.17 0.65 11.872 APASS candidate; refcat2 z error 0.012 GSC 7488-1137 21 58 32.82 -30 23 48.6 +008 -009 13.21 0.79 12.728 APASS candidate; refcat2 z error 0.012 GSC 7488-1178 21 58 39.47 -30 20 03.2 +001 -008 12.33 0.76 11.933 APASS candidate; refcat2 z error 0.012 GSC 7488-0791 21 58 46.51 -30 17 51.4 -002 -017 12.59 0.59 12.353 APASS candidate; refcat2 z error 0.013 GSC 7488-1266 21 58 55.64 -30 20 53.6 +023 -018 12.67 0.64 12.384 APASS candidate; refcat2 z error 0.013 GSC 7488-0252 21 59 01.65 -30 20 25.8 +007 -008 13.68 0.48 13.539 APASS candidate; refcat2 z error 0.020 GSC 7488-1250 21 59 06.93 -30 22 38.0 -006 -032 12.66 0.74 12.284 APASS candidate; refcat2 z error 0.022