COMMISSIONS 27 AND 42 OF THE IAU INFORMATION BULLETIN ON VARIABLE STARS Number 3944 Konkoly Observatory Budapest 19 October 1993 HU ISSN 0374 - 0676 Improved Positions of Southern NSV Stars. I Following with a program conducted to improve the coordinates of southern confirmed and suspected variable stars, improved positions for New Suspected Variable (NSV) stars are herein presented. Each of the stars presented in this note has been identified on the first- epoch plates of the SPM (van Altena et a1. 1990) project. The x, y measurements were transformed into celestial coordinates using an average of 37 SRS stars kindly supplied by the late Dr. Clayton Smith of the US Naval Observatory. The average standard error of the transformation is 0.7" in both RA and Dec. More details can be found in Lopez and Girard (1990). Table I lists the newly determined positions. The first column gives the NSV number; the second and third provide the RA and Dec (equinox B1950.0), respectively; the fourth column is the epoch of observation (given as epoch minus 1900); the last two columns list the differences between our new positions and those quoted in the NSV catalogue in minutes of time in RA and arc minutes in Dec. The differences are in the sense new position minus NSV coordinates. The 96 objects listed in Table I added to the 368 already reported by Lopez and Girard (1990), bring to 464 the total number of NSV stars for which we have been able to improve their positions. Carlos E. Lopez and Hector S. Lepez Felix Aguilar and Yale Southern Obs. Benavidez 8175 (oeste) - 5413 Chimbas E-mail: celopez@unsjfa.edu.ar San Juan - Argentina References: Lopez, C.E., and Girard, T.M. 1990. Publ. Astron. Soc. of the Pacific 102, 1018. [BIBCODE 1990PASP..102.1018L ] van Altena, W.F., Girard, T.M., Lopez, C.E., Lopez, J-A., and Molina, E.A. 1990 in IAU Symposium 141, Inertial Coordinate System on the Sky, ed. J.H. Lieske and V.K. Abalakin (Dordrecht: Kluwer), p. 419. [BIBCODE 1990IAUS..141..419V ] TABLE I Improved Positions of Southern NSV Stars --------------------------------------------------------------------------- Star RA (1950.0) Dec Epoch deltaRA DeltaDec h m s d ' " --------------------------------------------------------------------------- 07593 16 14 16.26 -57 1 45.3 69.38 -0.012 +0.345 07643 16 18 11.24 -57 39 33.5 69.38 -0.046 +0.442 07671 16 19 54.14 -55 47 50.7 69.38 -0.014 +0.054 07729 16 24 21.73 -59 39 18.7 68.37 -0.005 +0.188 07783 16 28 21.48 -58 58 59.8 69.37 +0.008 -0.297 07827 16 31 26.11 -60 26 8.2 69.37 +0.002 +0.163 07833 16 32 8.40 -55 33 33.9 69.38 -0.027 +0.635 07853 16 33 47.00 -59 38 38.5 69.37 0.000 -0.142 07886 16 37 4.84 -55 17 9.9 69.38 +0.031 +0.335 07921 16 40 7.23 -57 45 50.9 68.38 -0.004 -0.449 07959 16 44 12.99 -58 55 57.0 18.37 +0.016 -0.249 07965 16 44 52.40 -55 12 39.9 69.79 -0.010 +0.334 07975 16 46 4.39 -56 41 47.3 69.79 -0.010 +0.012 07988 16 47 34.30 -54 47 45.6 69.79 -0.062 +0.339 08002 16 49 4.75 -61 19 1.7 69.37 +0.013 -0.029 08007 16 49 26.00 -57 13 38.3 69.65 -0.017 +0.661 08008 16 49 27.30 -56 72 38.1 69.79 -0.012 +0.266 08013 16 50 15.84 -59 22 41.4 69.37 +0.014 -0.090 08025 16 50 49.39 -57 12 36.5 69.38 -0.010 -0.409 08043 16 52 4.20 -55 50 57.5 69.79 +0.003 +0.241 08049 16 52 32.55 -60 18 36.6 69.37 +0.026 +0.290 08050 16 52 35.46 -60 25 3.5 69.37 +0.024 +0.442 08053 16 52 44.74 -61 46 59.0 69.37 -0.004 +0.017 08054 16 52 56.83 -57 59 26.0 69.65 +0.014 -0.533 08074 16 55 16.48 -53 35 0.8 70.19 -0.042 +0.287 08080 16 55 49.22 -56 35 41.4 70.19 -0.046 -0.089 08083 16 56 9.27 -57 21 4.6 69.37 -0.062 -0.376 08089 16 57 0.53 -61 55 13.4 69.37 +0.009 +0.177 08105 16 57 52.72 -61 1 4.7 69.37 +0.012 +0.621 08109 16 58 12.15 -59 26 33.3 69.37 -0.031 +0.045 08118 16 59 3.14 -59 25 22.0 69.37 -0.031 +0.033 08120 16 59 9.00 -61 26 3.3 69.37 +0.017 +0.545 08125 16 59 17.01 -63 20 22.9 66.54 -0.033 +0.318 08130 16 59 22.27 -54 48 10.1 70.19 -0.029 +0.032 08139 17 0 40.00 -59 28 15.4 69.37 -0.017 -0.057 08172 17 2 17.57 -57 38 50.1 69.78 +0.009 -0.335 08181 17 2 52.76 -55 34 19.0 70.19 -0.287 -0.217 08196 17 3 54.37 -55 27 58.6 70.19 -0.027 -0.377 08212 17 4 49.29 -62 26 17.4 69.37 +0.038 -0.089 08221 17 5 9.18 -57 40 52.0 69.78 -0.030 -0.267 08230 17 6 7.55 -58 1 28.3 69.78 +0.026 -0.372 08242 17 6 54.72 -60 1 29.2 69.37 -0.005 +0.014 08245 17 7 5.28 -60 10 57.7 69.37 +0.088 -0.061 08314 17 10 8.51 -63 8 32.5 66.54 -0.042 -0.242 08341 17 10 52.47 -56 57 24.2 69.78 +0.041 -0.504 08390 17 12 1.27 -55 8 11.8 70.19 -0.045 -0.096 08427 17 13 9.27 -61 34 50.8 69.37 -0.046 +0.254 08443 17 14 4.89 -55 6 33.0 70.19 -0.002 +0.150 08452 17 14 27.95 -57 43 22.0 69.37 -0.001 -0.167 08475 17 15 14.42 -56 28 8.4 69.37 -0.026 +0.261 08507 17 16 27.05 -56 7 48.1 69.37 -0.016 +0.298 08565 17 19 24.48 -63 59 6.4 66.54 -0.025 -0.007 08621 17 22 33.80 -44 49 32.2 69.63 -0.003 -0.137 08806 17 25 52.89 -51 51 25.3 69.08 -0.018 -0.122 08846 17 26 14.64 -51 35 48.5 69.08 -0.006 -0.009 09166 17 31 24.18 -48 39 9.9 68.55 +0.003 +0.135 09203 17 33 1.61 -63 40 14.7 68.35 -0.040 -0.144 09245 17 34 7.02 -42 29 19.9 69.63 +0.017 -0.032 09348 17 35 41.24 -52 36 26.0 68.55 +0.004 -0.134 09460 17 37 33.63 -65 52 46.4 68.35 -0.023 -0.273 09477 17 37 46.81 -64 35 24.9 68.35 -0.020 -0.016 09495 17 38 13.30 -45 32 47.9 69.63 +0.222 +0.201 09510 17 38 13.33 -45 32 48.9 69.63 +0.022 +0.086 09514 17 38 22.55 -49 0 56.7 68.55 +0.076 +0.255 09523 17 38 38.79 -49 54 18.1 68.55 -0.037 -0.401 09525 17 38 49.04 -51 50 50.5 68.55 +0.001 +0.158 09529 17 38 54.56 -66 8 54.2 68.35 -0.024 -0.203 09541 17 39 27.59 -47 19 51.1 69.09 +0.026 -0.152 09542 17 39 27.49 -52 20 22.3 68.55 -0.009 -0.172 09552 17 40 2.22 -47 17 1.7 69.09 +0.020 -0.028 09553 17 40 1.60 -49 4 14.3 68.55 +0.010 -0.039 09554 17 40 2.99 -48 28 42.1 68.55 0.000 -0.002 09556 17 40 10.97 -49 20 55.6 68.55 -0.034 -0.127 09560 17 40 12.10 -50 1 25.9 68.55 -0.082 -0.231 09575 17 40 37.22 -53 37 40.8 68.55 +0.004 -0.780 09578 17 40 42.17 -48 18 21.2 68.55 +0.019 -0.053 09611 17 41 50.07 -47 58 5.9 68.91 +0.018 -0.398 09616 17 41 53.26 -49 17 8.1 68.54 +0.004 +0.366 09647 17 43 9.69 -46 40 4.4 69.09 -0.005 -0.173 09649 17 43 18.31 -51 40 23.8 60.54 +0.005 +0.203 09650 17 43 19.16 -46 32 44.5 69.09 +0.003 +0.158 09651 17 43 22.07 -51 27 47.7 68.54 +0.035 -0.096 09652 17 43 24.42 -51 53 6.9 68.54 +0.024 -0.015 09662 17 43 45.87 -51 35 45.0 68.54 +0.014 +0.250 09677 17 44 33.49 -51 12 36.8 68.54 +0.008 +0.286 09680 17 44 38.56 -49 52 3.1 68.54 -0.007 +0.248 09685 17 44 52.32 -45 59 39.0 69.09 -0.011 -0.651 09695 17 45 19.91 -51 19 40.4 68.54 -0.001 +0.426 09701 17 45 38.44 -46 31 34.0 69.09 +0.041 +0.134 09718 17 46 21.57 -48 56 18.5 68.54 -0.007 +0.191 09746 17 47 29.68 -46 57 13.6 68.91 +0.011 -0.527 09758 17 48 4.96 -51 54 48.2 68.54 +0.016 -0.703 09761 17 48 9.27 -47 46 39.2 68.82 +0.005 -0.453 09763 17 48 22.38 -47 11 2.9 68.82 -0.044 -0.048 09770 17 48 50.52 -49 24 50.9 68.54 +0.042 +0.352 09771 17 48 47.76 -46 24 56.5 69.09 -0.021 -0.041 --------------------------------------------------------------------