--- submitted to Bob Argyle, 2011 Sep 24 --- published on Webb Society double star circular no 20 http://www.webbdeepsky.com/dssc/dssc20.pdf Common Proper Motion Pairs and other Doubles Found in Spectral Surveys - 2. HD stars and miscellaneous pairs. Brian A. Skiff, Lowell Observatory, 1400 West Mars Hill Road, Flagstaff AZ 86001-4499, USA e-mail: bas@lowell.edu This report is the second in a series presenting new doubles found while preparing various spectral surveys in machine-readable form. Many of the pairs in the current batch are ordinary HD stars between 7$^{\rm h}$ and 9$^{\rm h}$ RA, and between --40$^\circ$ and --53$^\circ$ Dec, which crosses the southern Milky Way in Puppis and Vela. An additional group comes from somewhat fainter HD Extension stars appearing on HDE charts 161, 162, and 163. These cover a block of northernmost Sagittarius from the open cluster M23 east across the very crowded M24 starcloud (Cannon \& Mayall 1949). A few more pairs come from miscellaneous sources specified in the notes. My working methods in identifying the pairs were very much the same as described in the first paper of this series (Skiff 2011). The astrometric sources are also the same as outlined previously, with some additional ones specific to the southern sky: Assafin refers to a catalogue of stellar occultation candidates for the Pluto system prepared by Brazilian astronomer Marcelo Assafin and colleagues (Assafin et al 2010). In 2007 Sep-Oct they used the ESO 2.2-m telescope and WFI mosaic CCD camera (0".24/pixel) to produce astrometry for 2.2 million stars along Pluto's track for the years 2008 to 2015 --- through dense regions of the Milky Way in northern Sagittarius. The data were reduced against UCAC2, and the positions are claimed to have errors under 0".05 for stars brighter than mag 19. The single use here matches the 2MASS observation for the same pair within a few hundredths of an arcsecond. GLIMPSE a large catalogue of some 100 million stars very close to the galactic plane and for 65 degrees in longitude in both directions from the galactic center. It was produced using Spitzer, an 85cm-aperture space telescope, and its IRAC camera, which operated in the thermal infrared between 3.6 and 8.0 microns. The images have a native resolution of 1".2/pixel, and coordinates were reduced against 2MASS. Due to undersampling of the star images, the overall astrometric accuracy is about 0".2 (see the Spitzer/GLIMPSE homepage cited in the references). However, since there were images in four different filters, most of the differential measures adopted here are rather better than this. The data were obtained in three series. The GLIMPSE-I data were taken 2004 March to November, for which I adopt a mean epoch of 2004.5; the GLIMPSE-II observations were acquired in two batches in 2005 September and 2006 April (epoch 2006.0); and GLIMPSE-3D was done mostly in early 2007 (epoch 2007.2). Rousseau refers to an astrometry catalogue prepared as part of work on the Hipparcos Input Catalogue (Rousseau et al 1996). The authors measured about 118,000 southern stars that were candidates for the HIC, including large numbers of companions to bright stars. The careful manual measurements were made on glass copies of the ESO `Quick Blue Survey' plates (1-m f/3 Schmidt), which is the earliest of the southern Schmidt surveys (mean epoch 1976.0). Unfortunately these plates have not been digitally scanned since then. The coordinates have a claimed overall {\it rms} error of about 0".35, in accord with what's seen here. This is about as good as can be expected for manual measurements of single Schmidt plates, especially on the mostly overexposed primaries involved here. As with other photographic data, close pairs (i.e. physically close on the actual plates) tend to be measured systematically too close. However, the intermediate epoch of the observations allows it to help secure motion vectors in combination with other data. These three catalogues are items J/A+A/515/A32, II/293, and I/230, respectively, in the VizieR catalogue-query system. Further details about the catalogues can be found in the `ReadMe' pages associated with each VizieR entry in addition to the references cited above. For the common-motion pairs here I do not always show every available measurement. Instead I was guided by the number and dates of observations in the WDS, as well as the long list of astrometry sources cited by Wycoff et al (2006) as having been data-mined for the WDS. Even so, I usually show the earliest as well as the most recent available observations, if only to convince myself (and readers!) that the pair is related\ldots or not. The data table should be mostly self-explanatory. The first column shows the WDS name already assigned to the pairs. A few lack this name, and are newly reported here. For these the names column shows the HD number. The coordinates are given to 0".1 precision, as is adopted in the WDS, and nearly always are specifically for the primary star at both epoch and equinox J2000. The column `s' following the position shows a single-letter code for the source of the position: M 2MASS T Tycho-2 U UCAC2 These are not chosen at random, but are the `best' for any specific case. Unless they are problematic, the default is to adopt UCAC2 or Tycho-2 for brighter uncrowded stars, and 2MASS for the fainter stars. The magnitudes are standard V magnitudes obtained from a variety of sources, starting with published photoelectric or CCD photometry; the Tycho-2 catalogue, and ASAS-3 and TASS MkIV databases, and others; if necessary, as a last resort, rough adjusted averages from the red and blue magnitudes in the Schmidt survey catalogues, and even eyeball estimates from the plate-scans. It is often the case that only the combined magnitude has actually been measured; component values were then obtained by adopting delta-magnitudes from (for instance) CMC14 or UCAC3. The magnitudes are rounded to 0.1-mag precision in any case, and to whole magnitudes for rough estimates. Spectral types are shown in the next two columns. The quality of these types ranges from excellent to poor. If only one entry is present, it is for the primary only or for the combined type of the pair, generally when the delta-magnitude < 1.0. Uncertain or estimated photometric types (not from spectra) are shown with a colon. The relative astrometry then follows in the familiar format, with the source of each observation at the end of each line. Sometimes I have taken differences between two catalogues, where one star is present in each catalogue, e.g. ``Tycho-2 minus UCAC2". Obviously this is a little dodgy, since there can be slight systematic differences in the coordinate zero-points even if the epochs are identical --- and for the HIP/Tycho-based catalogues, there is not \emph {supposed} to be any difference! Such relative astrometry between catalogues should clearly have lower weight than other proper differential observations within a single catalogue. A note is given for every entry at the bottom of the data table. These mainly provide a valid SIMBAD name for the primary, since they all come from some published paper or catalogue. Other relevant details are given about apparent motion, spectral types, and so on. Acknowledgements Brian Mason (USNO) accepted most of these doubles some years ago on the skimpiest of evidence, fuller details for which are herewith supplied. I thank S\'ebastien Derriere (CDS-Strasbourg) for details about the astrometric reductions in the DENIS survey. Marilyn Meade (Univ of Wisconsin) quickly supplied observation dates for the GLIMPSE surveys not specified in the on-line documentation. References Assafin, M., Camargo, J. I. B., Vieira Martins, R., Andrei, A. H., Sicardy, B., Young, L., da Silva Neto, D. N., and Braga-Ribas, F., Astron. Astrophys., {\bf 515}, A32, 2010 Cannon, A. J., and Mayall, M. W., {\it The Annie J. Cannon Memorial Volume of the Henry Draper Extension}, Ann. Astron. Obs. Harvard Coll., {\bf 112}, 1949 Houk, N., {\it Michigan Catalogue of Two-Dimensional Spectral Types for the HD Stars}, vol 2, 1978 Houk, N., {\it Michigan Catalogue of Two-Dimensional Spectral Types for the HD stars}, vol 5, 1999 van Leeuwen, F., Astron. Astrophys., {\bf 474}, 653, 2007 Jeffries, R. D., Naylor, T., Devey, C. R., and Totten, E. J., Mon. Not. R. Astron. Soc., {\bf 351}, 1401, 2004 Lyra, W., Moitinho, A., van der Bliek, N. S., and Alves, J. F., Astron. Astrophys., {\bf 453}, 101, 2006 MacConnell, D. J., Astron. Astrophys., Suppl. Ser., {\bf 44}, 387, 1981 MacConnell, D. J., and Coyne, G. V., Vatican Obs. Publ., {\bf 2}, 63, 1983 Malmquist, K. G., Uppsala Astron. Obs. Ann., {\bf 4}, part no. 9, 1, 1960 Naylor, T., Totten, E. J., Jeffries, R. D., Pozzo, M., Devey, C. R., and Thompson, S. A., Mon. Not. R. Astron. Soc. {\bf 335}, 291, 2002 Pettersson, B., and Reipurth, B., Astron. Astrophys., Suppl. Ser., {\bf 104}, 233, 1994 Raghavan, D., Henry, T. J., Mason, B. D., Subasavage, J. P., Jao, W.-C., Beaulieu, T. D., and Hambly, N. C., Astrophys. J., {\bf 646}, 523, 2006 Rousseau, J. M., Perie, J. P., and Gachard, M. T., Astron. Astrophys., Suppl. Ser., {\bf 116}, 301, 1996 Skiff, B. A., Webb Society Double Star Section Circ., {\bf 19}, 14, 2011 Slawson, R. W., and Reed, B. C., Astron. J., {\bf 96}, 988, 1988 Slettebak, A., and Stock, J., Astron. Abh. Hamburg. Sternw., {\bf 5}, 105, 1959 Spitzer/GLIMPSE homepage: {\tt http://irsa.ipac.caltech.edu/data/SPITZER/GLIMPSE} Wisniewski, W., and Coyne, G. V., Vatican Obs. Publ., {\bf 1}, 245, 1976 Wycoff, G. L., Mason, B. D., and Urban, S. E., Astron. J., {\bf 132}, 50, 2006 ******************************************************************************* WDS 01002+5809 BC The AB pair (Stein 1507) turns out to be optical. The B component, however, is the fainter star of a common-motion pair with HD 236596 just to the east, now called comp C. UCAC3 has two entries each for stars B and C with more-or-less correct coordinates and motions. Component A is an unrelated K giant very much in the background of B+C. WDS 21295+5111 = VES 412 The primary was reported as having H-alpha emission in the Vatican emission-line survey (Wisniewski \& Coyne 1976). Follow-up by MacConnell \& Coyne (1983) shows this was in error, and the star has not appeared in any later emission-line survey. The modest motion together with visible-light and 2MASS colors are consistent with the pair being K dwarfs (maybe close to M0 for the fainter star). WDS 06138-2352 AB = HD 43162 This naked-eye late-G dwarf has at least two M-dwarf common-motion companions, adding two stars to the census of nearby stars within 25 parsecs --- the revised Hipparcos parallax distance is about 17pc (van Leeuwen 2007). The more distant C component was found by Deepak Raghavan et al (2006). The UCAC3 measure for AB shown here seems to be okay even though both Hipparcos/Tycho and AC2000 observations are omitted from the proper-motion solution for the primary star. WDS 10547+3646 = HD 94456 This large delta-mag pair was noticed by their common proper motion in Tycho-2 (primary) and UCAC2 (secondary). WDS 12093+4656 = BD+47 1931 Another wide common-motion pair toward the north galactic pole. The USNO-A2.0 measure is an excellent match to recent recent observations, confirming the physical link, despite the discrepant UCAC3 proper motion for the secondary (UCAC2 is correct). WDS 08533-7229 = HD 311449 This is a wide pair of A-type stars, the brighter of which was recorded on HDE chart 157; the companion is CPD-72 752. I show only some representative `bookend' measures, since several more are already given in the WDS. The GSC-ACT measure is the mean of three overlapping plates. WDS 08547-6624 = HD 311185 A wide pair of F/G dwarfs; the companion is CPD-65 1051. Again I show only some representative measures. WDS 07492-1020 = HD 63554 The brighter, bluer star of this pair was reported to have H-alpha emission by Jack MacConnell (1981). The red color of the secondary suggests it must be a luminous G or K star in order to be consistent with the delta-magnitude. The proper motion is very small, and there are no radial velocities, so the physical link is not certain. Again I show only some representative measures in addition to those present in the WDS. WDS 08442-4116 = [M81] I-254 Another H-alpha emission-line star from Jack MacConnell (1981), confirmed by Pettersson \& Reipurth (1994). This lies in the star-group Collinder 197, and is projected on a region of bright nebulae and dark clouds. In the near-infrared a third component comes up lying between the two stars listed here, but no measures are possible. The location in a star-forming region suggests this could be a T Tauri-type binary. WDS 12133+3013 = BD+31 2339 This is a likely common-motion pair of stars with nearly identical colors. Malmquist (1960) shows the combined type as F0, while Slettebak \& Stock (1959) gave it as F2, which photometry indicates is more nearly correct. The astrometric history goes back to the AC2000, and additional measures are recorded in the WDS besides those here. WDS 07158-5132 = HD 56784 The matching proper motion of this G-dwarf pair alone is sufficient to prove the connection; the colors and delta-magnitude are also consistent. The WDS contains some additional measures not shown here. WDS 07232-4901 = HD 58446 The primary here is evidently somewhat reddened; the companion is nearly as red, but is not faint enough to be a main-sequence star. If they are each single, one possibility is that the secondary is a subgiant; it is also possible that it is a close binary itself, and thus appears brighter than expected for a single star. The three more recent measures shown here are not in the WDS. WDS 07439-4937 = HD 62914 The early-F type primary has a somewhat fainter companion whose magnitude and colors are consistent with it being a G dwarf. The three more recent measures are not present in the WDS. WDS 07526-4401 = HD 64574 Houk (1978) classified the primary as type F0, with no luminosity class and her quality code 4 (least reliable). This is probably due to the overlap of the spectrum with the secondary, CPD-43 1881, about 20" south. Except for the AC2000 observation, the measures here supplement those in the WDS. WDS 07547-4730 = HD 65057 Except for the AC2000 observation, the measures of this common-motion pair supplement those in the WDS. WDS 07592-4900 = HD 65985 The proximity and large delta-magnitude mean that only the 2MASS observation is available. The companion is recorded in UCAC3, but is shown with a spurious large `radial' proper motion directly away from the primary. WDS 07593-5210 = HD 66063 + HD 66040 This is clearly an optical pair that nevertheless have remarkably similar proper motion. The primary is an A2V star that must be roughly 200-250pc distant. The companion, less than a magnitude fainter, is an Hipparcos K0V star with a reliable parallax placing it only 50pc away. This is a good example of being able to use information other than the relative astrometry to help determine the nature of a pair. WDS 08011-4630 = HD 66362 + HD 66361 Another double-HD pair, but this time almost certainly related due to their similar spectral types. All the astrometry here is supplemental to the WDS. WDS 08032-4320 AC = HD 66745 The conventional AB pair contains two F/G dwarfs. On the digitized sky survey red and far-red plates, and on the near-infrared 2MASS images, a third star comes up on the east side, probably a background M-giant that must be an optical companion. It dominates in the 2MASS images and is linked to the mid-infrared source IRAS Z08015-4311. WDS 08063-4809 = HD 67534 This matched pair of F stars was listed as a single object in the original HD catalogue, but resolved in most other sources. Thus the primary is CD-47 3586 = CPD-47 1848, while the companion is CD-47 3585 = CPD-47 1847, which names have been carried forward in the literature. WDS 08066-4847 = HD 67611 Another wide pair with common motion and colors consistent with the delta-magnitude. WDS 08088-4914 = HD 68114 + HD 68115 A nearly-matched pair of A0V stars in the region of the open cluster NGC 2571. The stars have good astrometric history. Besides two historically-based measures, I show relative astrometry from three CCD photometric studies of the open cluster, all of which happened to use the CTIO 0.9-m telescope to obtain their data. This suggests it is worth searching the complete VizieR database to find relevant data beyond those publications specifically aimed at double stars. WDS 08139-4355 = HD 69167 This pair has sometimes been recorded separately in classical astrometric catalogues, but not listed in the WDS until recently. They have essentially the same colors, so their proximity argues for a physical connection. WDS 08177-5020 = HD 70066 Although Houk (1978) classified the primary as G6/8V, the small Hipparcos parallax implies this must be a giant. By inference the companion is an F-type dwarf. WDS 08203-5118 = HD 70542 Though seemingly matched on the sky, this is an optical pair, as shown by the representative measures here. The 2MASS J-K colors suggest the primary (southwestern component) is a late-G dwarf, consistent with its modest proper motion, while the companion is a bluer F-type star, implying a background object. These are barely consistent with the approximate types K + A given by Houk (1978), which are obviously uncertain due to the overlapping spectra; the original HD type of F5 must be a compromise type for the combined light, but in fact is appropriate for the secondary alone. WDS 08205-5130 AC = HD 70586 + HD 70585 The close AB Rossiter pair is the eastern of two bright HD stars. The `bookend' dates shown here for the wide pair are representative of several additional measures in the WDS. WDS 08237-4151 AB,C = HD 71058 The AB components here are a conventional pair by Innes; the third star comes up only at longer wavelengths, and is clearly a background M giant. WDS 08311-5146 = HD 72518 The companion is CD-51 3060, which has common proper motion. The delta-mag and 2MASS J-K color for the companion are consistent with it being an F dwarf. WDS 19496+3939 AC = HD 226030 A faint third component joins the early Herschel AB pair here on digitized sky survey images, and is resolved in 2MASS and UCAC2. UCAC3 shows all three stars, but in five somewhat garbled entries. WDS 17536-1726 AC = HD 312312 The wide Harvard pair have common motion; the new third component is almost certainly a background red giant that comes up only at longer wavelengths. HD 312423 This pair is not yet in the WDS. The stars are resolved in 2MASS and in the GLIMPSE survey catalogue. The pair is also present in UCAC3, but the secondary (at least) has spurious `radial' proper motion. WDS 18007-1721 = HD 312453 The primary was found to have H-alpha emission by MacConnell (1981). The faint companion also appears in UCAC3, though again it shows spurious large proper motion directly away from the primary (due north in this case). WDS 08401-4745 ABC = HD 74107 This trio lies on the periphery of the sparse open cluster IC 2395. The two faint companions are only slightly less blue than the primary. WDS 08429-5231 = HD 74652 The large delta-mag and 2MASS J-K color of the companion are consistent with it being a dwarf near K0. WDS 08531-4522 ABC = HD 76211 While the B companion due south is quite blue and is likely physical, the third star northwest is less so, and is more likely to be optical. The AC2000 observations for B and C have slightly different epochs than A, and the dates are averaged here. WDS 08554-4653 AC = HD 76589 The close AB pair is from Rossiter; the new distant companion is CD-46 4760 = CPD-46 3244. It shares common motion and has a spectral type consistent with the delta-magnitude. WDS 08567-4355 = HD 76776 The relatively faint companion seems to share common motion. The delta-mag and 2MASS J-K color are consistent with the companion being a K dwarf. WDS 08583-4612 = HD 77046 A common-motion pair with good astrometric history. The primary is in the Hertzsprung gap, classified as type G3III by Houk (1978), and G4III by Slawson \& Reed (1988). The unexpected detections in the mid-infrared by the MSX and AKARI spacecraft add astrophysical interest. The star is not obviously variable in the ASAS-3 database. WDS 09023-4656 = HD 77652 Only an estimate from 2MASS images is available for the relatively close, faint companion. WDS 18095-1712 ABC = HD 312610 This blue primary star has two close companions, but their relation to the primary is uncertain. WDS 18125-1901 = HD 312761 The companion is 2.5 mag fainter but not much redder than the blue primary --- unusual for so faint a star in this part of the sky, so it has a fair chance of being related. HD 312789 This pair is not yet in the WDS and was recognized due to the discrepancy between the blue HDE spectral type and the red 2MASS colors. Inspection of DSS and 2MASS images showed the red companion. This star is almost certainly an unrelated background red giant, and is close enough to be poorly resolved in both 2MASS and the GLIMPSE catalogue. The pair are about equally bright in the near-infrared J band. WDS 18146-1742 = HD 312835 This is almost certainly an optical pair. The G-dwarf primary has modest motion toward the northeast, while the companion is a background red giant, and the dwarf is creeping up on it slowly. The red star dominates at near-infrared wavelengths. WDS 18137-1903 = HD 312913 Another close pair with disparate colors, including a red component that comes up at longer wavelengths. The inference is that this is an optical pair involving an A-type dwarf and a red giant very much in the background. This is located in a crowded bit of real estate in the M24 starcloud about 2' from the planetary nebula NGC 6567. WDS 18169-1734 = HD 313010 The companion here again dominates in the infrared, so this is another blue/red optical pair. The DENIS measure appears to be relatively poor. WDS 18167-2022 = HD 313111 This optical pair are about equally bright on the POSS-II far-red plate-scan, and the red companion dominates in the 2MASS J-band image. WDS 18206-1811 = HD 313158 One more blue/red pair in the M24 starcloud. The red companion is discernable on the digitized sky survey far-red scan, and obvious in 2MASS images (roughly equal brightness at J). As with previous cases, it is presumably an unrelated background M giant. HD 313346 This pair is not in the WDS, but recorded with the double-star flag in UCAC3, though the proper motion for the companion is incorrect there. The blue primary has a red companion that comes up at longer wavelengths, surely a background red giant. WDS 18261-2019 = HD 313384 This is a conventional moderately close pair that is resolved in UCAC3 and 2MASS. Though nearly equal in brightness, I take the southwest component to be the primary simply because that component was picked up in Tycho-2. ******************************************************************************* Name RA (J2000) Dec s Va Vb spec theta rho epoch source WDS 01002+5809 BC 1 00 13.08 +58 09 12.5 U 12.7 9.6 K: F2 84.1 21.73 1910.4 AC2000 mean epoch 85.5 21.76 1983.850 GSC-ACT 85.4 21.75 1998.988 2MASS WDS 21295+5111 21 29 32.96 +51 11 18.8 M 10.9 12.9 K: 232.7 4.55 1994.651 SDSS DR7 231.9 4.45 1998.860 2MASS WDS 06138-2352 AB 6 13 45.30 -23 51 42.9 T 6.4 12.5 G5V M4Ve 177.2 24.87 1976.91 Rousseau 176.7 24.44 1999.033 2MASS 176.5 24.55 2000.0 UCAC3 WDS 10547+3646 10 54 44.78 +36 45 31.7 T 7.4 14.0 F2V M: 60.1 33.09 1953.346 USNO-A2.0 58.9 34.20 1984.099 GSC-ACT 58.9 34.17 2000.0 Tycho-2 minus UCAC2 59.0 34.12 2000.252 2MASS WDS 12093+4656 12 09 19.97 +46 56 11.7 U 9.7 14.7 A5 K: 215.3 33.83 1955.161 USNO-A2.0 215.4 33.87 2000.0 UCAC2 215.3 33.88 2000.246 2MASS 215.4 33.81 2002.296 CMC14 WDS 08533-7229 8 53 16.94 -72 29 20.8 U 10.0 11.1 A 43.7 43.50 1892.251 AC2000 44.0 43.36 1977.2 GSC-ACT,n=3 43.9 43.39 2000.0 UCAC2 WDS 08547-6624 8 54 44.01 -66 24 03.4 U 10.5 10.9 G0 345.1 29.61 1892.208 AC2000 346.2 29.63 1976.255 GSC-ACT 346.1 29.28 1980.139 USNO-A2.0 345.3 29.85 1998.403 DENIS 345.4 29.88 2000.0 UCAC2 WDS 07492-1020 7 49 11.48 -10 20 00.3 U 9.8 10.3 B8II 41.8 8.90 1904.206 AC2000 42.0 8.81 2000.0 UCAC2 42.1 8.76 2003.988 CMC14 WDS 08442-4116 8 44 10.93 -41 16 18.7 M 12.4 13.4 K:e 111.0 3.99 1997.192 DENIS 110.1 3.95 1999.060 DENIS 110.5 4.11 1999.156 2MASS WDS 12133+3013 12 13 15.40 +30 13 11.3 U 11.1 11.9 F2 179.1 7.50 1903.004 AC2000 177.2 7.61 2003.008 CMC14 WDS 07158-5132 7 15 50.15 -51 31 55.5 U 10.6 11.4 F8/G2 196.5 9.99 1902.295 AC2000 195.1 9.97 1996.178 DENIS 195.1 9.94 1998.898 DENIS WDS 07232-4901 7 23 11.76 -49 00 53.5 T 8.9 12.0 G8III 233.0 33.38 1903.3 AC2000 mean epoch 233.1 32.80 1978.015 GSC-ACT 232.7 32.33 1980.025 USNO-A2.0 233.1 33.30 1996.186 DENIS WDS 07439-4937 7 43 52.04 -49 37 05.4 T 9.6 11.5 F2IV G: 314.6 15.54 1903.615 AC2000 314.8 15.00 1976.14 Rousseau 314.3 15.24 1999.126 DENIS 314.2 15.21 2000.0 UCAC2 WDS 07526-4401 7 52 36.47 -44 00 43.0 U 10.2 10.7 F0 F: 171.8 19.68 1902.106 AC2000 173.4 18.74 1976.906 GSC-ACT 171.4 19.51 1996.988 DENIS 171.4 19.56 1999.131 DENIS 171.3 19.52 2000.0 UCAC2 WDS 07547-4730 7 54 44.96 -47 29 47.4 T 9.1 12.1 F6V K: 34.5 11.23 1901.557 AC2000 35.3 11.59 1976.07 Rousseau 36.9 11.16 1996.071 DENIS 36.1 11.30 2000.0 UCAC2 WDS 07592-4900 7 59 13.28 -48 59 50.4 U 10.1 14.0 A1V F/G: 179.3 4.12 1999.967 2MASS WDS 07593-5210 7 59 16.82 -52 09 32.5 T 8.4 9.2 A2V K0V 315.9 37.58 1901.481 AC2000 316.2 37.43 1999.967 DENIS 316.2 37.45 2000.0 UCAC2 WDS 08011-4630 8 01 03.85 -46 29 30.2 U 8.3 9.3 B9V A0/1V 237.4 27.68 1902.784 AC2000 236.8 27.03 1976.07 Rousseau 237.2 27.22 1998.455 DENIS,n=2 237.2 27.28 1999.216 2MASS WDS 08032-4320 AC 8 03 09.40 -43 19 56.0 T 9.9 13.0 F5V 89.6 8.12 1976.07 Rousseau 89.7 7.88 1999.219 2MASS WDS 08063-4809 8 06 17.41 -48 08 58.8 U 10.3 10.5 F0/2 F0/2 189.6 18.33 1902.598 AC2000 189.8 18.33 1999.145 DENIS 189.9 18.31 2000.0 UCAC2 WDS 08066-4847 8 06 37.18 -48 46 46.2 T 9.5 11.5 F2III 326.8 30.23 1903.639 AC2000 326.3 30.38 1975.198 GSC-ACT 326.7 30.73 1999.159 DENIS,n=2 326.7 30.70 2000.0 UCAC2 WDS 08088-4914 8 08 49.81 -49 13 43.7 U 9.4 9.7 A0V A0V 99.8 32.58 1903.155 AC2000 99.9 32.71 1996.3 Naylor et al (2002) 100.0 32.78 1999.17 Jeffries et al (2004) 99.8 32.70 2000.0 UCAC2 100.0 32.73 2003.1 Lyra et al (2006) WDS 08139-4355 8 13 55.89 -43 54 31.7 T 10.0 11.3 B9IV 168.0 8.46 1898.585 AC2000 170.1 8.64 1976.07 Rousseau 169.1 8.70 2000.0 UCAC2 WDS 08177-5020 8 17 42.99 -50 19 42.7 T 9.7 11.8 G6/8 F: 328.8 42.08 1903.191 AC2000 328.3 41.64 1975.198 GSC-ACT 327.3 41.81 1976.909 GSC-ACT 328.4 41.66 1999.197 DENIS 328.3 41.63 2000.0 UCAC2 WDS 08203-5118 8 20 17.35 -51 18 04.3 U 10.8 10.8 K F: 22.2 11.05 1901.867 AC2000 36.3 10.08 1996.249 DENIS 36.5 10.08 1998.304 DENIS 36.3 10.06 2000.0 UCAC2 WDS 08205-5130 AC 8 20 28.26 -51 29 45.9 T 8.3 8.8 F2III A8/F0 257.3 28.78 1899.090 AC2000 257.9 29.22 2000.0 UCAC2 WDS 08237-4151 AB,C 8 23 41.50 -41 51 10.6 T 10.1 15.0 Ap 66.1 5.39 1996.236 DENIS 66.3 5.78 1999.129 2MASS WDS 08311-5146 8 31 06.89 -51 46 27.4 T 9.0 12.0 K0III F: 70.6 39.87 1900.756 AC2000 70.4 39.95 1976.909 GSC-ACT 70.6 39.89 1996.227 DENIS 70.4 40.12 1999.019 DENIS 70.5 39.97 2000.0 UCAC2 WDS 19496+3939 AC 19 49 38.38 +39 38 47.5 U 9.3 14.9 G0 127.9 10.82 1998.392 2MASS 127.7 10.58 2000.0 UCAC2 WDS 17536-1726 AC 17 53 38.51 -17 26 23.0 U 10.5 16.0 B8 281.0 2.69 1999.320 2MASS 280.6 2.51 1999.9 DENIS,n=2 HD 312423 17 57 25.60 -19 25 14.2 M 11.2 12.7 A3 157.2 3.82 1998.449 2MASS 161.1 3.89 2007.2 GLIMPSE-3D WDS 18007-1721 18 00 42.55 -17 20 44.3 U 10.8 13.0 A0e 2.5 4.35 1998.285 2MASS WDS 08401-4745 AB 8 40 06.65 -47 44 54.3 T 9.6 11.3 A0V 96.5 8.34 1902.181 AC2000 98.4 8.45 1976.07 Rousseau 96.7 8.12 1999.079 DENIS 97.1 8.10 1999.244 2MASS 96.8 8.08 2000.0 UCAC2 WDS 08401-4745 AC 9.6 13.1 A0V 10.8 10.97 1902.181 AC2000 12.0 10.84 1976.07 Rousseau 13.1 10.46 1999.079 DENIS 13.1 10.42 1999.244 2MASS 12.9 10.41 2000.0 UCAC2 WDS 08429-5231 8 42 54.76 -52 30 50.8 T 8.4 14.0 K2III K: 344.0 36.77 1976.909 GSC-ACT 344.5 36.60 1977.275 GSC-ACT 344.8 36.71 2000.0 UCAC2 344.9 36.71 2000.441 DENIS WDS 08531-4522 AB 8 53 03.92 -45 22 24.5 T 9.5 10.8 A0V 173.5 14.94 1905.4 AC2000 mean epoch 175.1 14.56 1976.10 Rousseau 173.3 14.62 1999.200 2MASS 173.2 14.63 2000.0 UCAC2 WDS 08531-4522 AC 9.5 12.2 A0V 309.8 16.80 1905.4 AC2000 mean epoch 310.3 17.68 1976.10 Rousseau 311.3 17.07 1999.200 2MASS 311.3 17.11 2000.0 UCAC2 WDS 08554-4653 AC 8 55 23.04 -46 53 27.9 T 8.3 10.3 B9IV A0V: 162.6 18.45 1903.781 AC2000 159.3 19.22 1976.10 Rousseau 161.3 19.08 1996.060 DENIS 161.7 18.88 2000.0 UCAC2 WDS 08567-4355 8 56 39.01 -43 55 29.0 T 8.9 13.7 Fm K: 125.9 54.03 1979.002 GSC-ACT 125.3 54.30 1980.495 USNO-A2.0 126.0 54.34 1999.110 DENIS,n=2 126.0 54.43 2000.0 UCAC2 WDS 08583-4612 8 58 16.19 -46 11 52.3 U 8.6 11.3 G3III 96.8 15.27 1902.857 AC2000 97.6 15.33 1997.142 DENIS 97.1 15.37 2000.0 UCAC2 WDS 09023-4656 9 02 09.02 -46 55 53.7 U 9.8 15.0 A1V 313 2.4 2000.244 2MASS estimate WDS 18095-1712 AB 18 09 29.71 -17 11 56.2 U 10.3 16.0 B5 242.6 4.68 1998.285 2MASS WDS 18095-1712 AC 10.3 13.0 B5 280.3 6.31 1998.285 2MASS 281.3 6.25 1998.622 DENIS 279.9 6.30 2002.608 CMC14 WDS 18125-1901 18 12 30.66 -19 01 19.5 U 11.3 13.8 A2 120.4 5.92 1996.320 DENIS 121.1 5.83 1998.405 2MASS 120.4 5.78 2003.427 CMC14 minus UCAC2 121.3 5.66 2004.5 GLIMPSE-I HD 312789 18 10 04.31 -19 29 10.1 U 11.8 16.0 A2 351.8 2.27 2000.0 UCAC2 minus 2MASS 355.9 1.99 2006.0 UCAC2 minus GLIMPSE-II WDS 18146-1742 18 14 35.25 -17 42 05.9 T 10.7 16.0 G0 51.3 3.27 1999.331 2MASS 49.8 3.26 2004.5 GLIMPSE-I WDS 18137-1903 18 13 43.45 -19 02 43.1 U 10.9 16.0 A 266.0 2.75 2000.0 UCAC2 minus 2MASS 263.2 2.69 2004.5 GLIMPSE-I WDS 18169-1734 18 16 51.20 -17 33 32.1 U 10.8 18.0 A2 242.4 3.67 1999.331 2MASS 239.6 3.29 1999.444 DENIS 241.5 3.85 2004.5 GLIMPSE-I WDS 18167-2022 18 16 41.87 -20 22 26.0 U 10.8 16.0 A2 141.4 3.02 1999.444 DENIS 141.8 3.00 2000.0 UCAC2 minus 2MASS 142.5 3.14 2007.2 GLIMPSE-3D WDS 18206-1811 18 20 38.88 -18 11 04.6 U 10.5 16.0 A0 143.2 3.59 1999.438 2MASS 139.1 3.65 1999.515 DENIS HD 313346 18 26 58.43 -18 34 40.6 U 10.4 12.5 A 15.4 4.64 1998.419 2MASS 15.7 4.63 1998.567 DENIS 15.4 4.63 2007.769 Assafin WDS 18261-2019 18 26 04.30 -20 19 23.0 M 12.0 12.0 A5 35.2 2.93 1998.419 2MASS 35.1 2.91 2000.0 UCAC3