L O W - M A S S X - R A Y B I N A R I E S --------------------------------------------- in lexigraphical order Object Name Coordinates Type Mag1 Mag3 LX/LO Orb.Per. 3. Per. EB Spectr2 M1/M2 Incl M1 M2 Altern.Name (J2000) Mag2 Mag4 T1 2. Per. 4. Per. SB Spectr1 V1333 Aql 19 11 15.9 XT XB 19.4 14.8 900 0.7904 : K5/5 Aql XR-1 +00 35 06 1 435 V1405 Aql 19 18 47.9 XB SH 21.5 10000 0.03472 D 4U 1915-05 -05 14 09 0.035041 V1408 Aql 19 59 23.9 18.7 800 0.3887 4U 1957+11 +11 42 29 1 19.1 V801 Ara 16 40 55.4 AS XB 17.5 1700 0.158495 1.45 MXB 1636-53 -53 45 05 1 17.9 1 0.20 V821 Ara 17 02 49.3 XT XP? 15. 10 0.619 0.00113 GX 339-4 -48 47 22 1 >21. 190.5 1 V395 Car 09 22 34.7 DC 15.5B 1.6 13.25 : 1 K2 2S 0921-630 -63 17 41 1 18.0B 1 V822 Cen 14 58 21.9 XT XB 18.2 12.8 300 0.629063 K7/3 42 1.3 <0.7 Cen X-4 -31 40 07 1 19.1 1 12 0.8 BW Cir 13 58 09.6 XT 22.: 16.9 1.92 : X 1354-6429 -64 44 05 1 V691 CrA 18 25 46.6 DC 15.8 20 0.232109 1 80 1.4 0.28 2A 1822-371 -37 06 18 1 16.4 2 4 0.6 0.08 UW CrB 16 05 45.7 19.7 16 0.07711 1 MS 1603+2600 +25 51 45 1 V404 Cyg 20 24 03.7 XT BH 20.5 11.6 6.4714 K0/3-5 16.7 56 10. 0.65 GS 2023+338 +33 52 03 1 0.23585 1 1.5 4 2. 0.25 V1341 Cyg 21 44 41.1 ZS XB 14.5 140 9.844 QPO A-F/3-4 70: 1.6: 0.8: Cyg X-2 +38 19 18 1 14.9 77.8 1 5 0.3 0.3 V1727 Cyg 21 31 26.2 DC XB 18.0 15.8 30 0.218259 1 F7/5 85 0.6 0.4 4U 2129+47 +47 17 25 1 1 5 0.2 0.2 V616 Mon 06 22 44.4 XT BH 17.9 11.2 200 0.323014 K4/5 15 <76 3.77 0.27 Mon X-1 -00 20 45 1 18.4 2 2 0.47 0.12 GR Mus 12 57 37.1 XB 19.1 200 0.16389 0.0275 D 2S 1254-690 -69 17 20 1 1 GU Mus 11 26 26.6 XT BH 20.4 13.4 >100 0.432602 K3-4/5 7.5 60 6.3 0.85 N Mus 1991 -68 40 32 1 SH 20.6 0.4376 2 1.1 6 1.3 0.25 QX Nor 16 12 42.9 XT XB >20. 18.: 4.1 : 4U 1608-52 -52 25 23 1 AS V2107 Oph 17 08 14.1 XT BH 21.3 15.8 0.521 <80 6.65 0.45 N Oph 1977 -25 05 32 1 21.8 1 0.25 0.15 V2134 Oph 17 02 06.3 XT XB 18.3 600 0.296505 1 >65 MXB 1659-29 -29 56 45 1 >23. V2216 Oph 17 31 44.1 AS 17.0 400 0.1749 4U 1728-16 -16 57 41 1 17.3 1 V2293 Oph 17 19 36.8 XT SH? >21. 15.0 N Oph 1993 -25 01 03 1 0.6127 : V1055 Ori 06 17 07.3 XB 18.5 1200 4.898 : 2S 0614+091 +09 08 13 1 V518 Per 04 21 42.8 XT BH 22.4 12.6 0.212140 M0-4/5 48 3.57 0.39 GRO J0422+32 +32 54 27 1 SH 0.2157 1 3 0.34 0.02 V4134 Sgr 17 58 39.9 18.4 1400 0.1858 D 4U 1755-33 -33 48 27 1 18.8 V818 Sco 16 19 55.0 ZS 12.0 500 0.787313 0.00293 Sco X-1 -15 38 25 1 13.4 QPO 1 V926 Sco 17 38 58.1 AS XB 17.5 1100 0.19382 MXB 1735-44 -44 27 00 1 1 V1033 Sco 16 55 00.1 XT BH 17.3 14.1 2.62157 1 F3-6/4 2.9 69. 7.02 2.34 GRO J1655-40 -39 50 45 1 >18. 1 0.0 0. 0.22 0.12 MM Ser 18 39 57.4 AS XB 19.2 1200 0.54 : Ser XR-1 +05 02 08 1 3.40252: NP Ser 18 16 01.3 ZS XB 17.5 3000 0.813 QPO 4U 1813-14 -14 02 11 1 KZ TrA 16 32 16.6 XP 18.5 170 0.02876 7.6635 4U 1627-67 -67 27 42 1 LU TrA 16 01 02.2 18.6 180 0.3807 4U 1556-605 -60 44 18 1 19.2 MM Vel 10 13 36.3 XT BH? 20.2 13.8 0.286 : >37 N Vel 1993 -45 04 32 1 UY Vol 07 48 33.7 XT XB 16.8 0.159338 1 EXO 0748-676 -67 45 09 1 18.0 QZ Vul 20 02 49.4 XT BH 17.5 0.344092 K3-6/5 24 65 8.5 0.36 GS 2000+25 +25 14 11 1 SH >23. 0.3474 1 7 9 1.5 0.12 AC 211 21 29 58.0 GC XB 15.6 20 0.713014 +12 10 02 1 16.4 1 LMC X-2 05 20 29.3 16.7 400 12.543 1 -71 57 36 8 19.3 1 0042+3244 00 44 48.8 XT 18.8 11.6 : 4U 0042+32 +33 00 33 2 19.3 1323-6152 13 26 36.2 XB 0.1222 D 4U 1323-62 -62 08 09 3 1624-4904 16 28 02.3 0.921 D 4U 1624-49 -49 11 25 C 1702-3621 17 05 44.4 ZS 18.6 0.933 QPO 4U 1702-36 -36 25 23 1 1705-4402 17 08 54.5 AS XB 0.0544 D 4U 1705-44 -44 06 02 D J1744-2844 17 44 33.1 XT XB 11.8367 0.46709 -28 44 19 1 XP 1 J1745-2901 17 45 36 0.3482 1 -29 01 34 1746-3702 17 50 12.5 GC XB 0.239 : 4U 1746-37 -37 03 08 1 1811-1710 18 14 31.0 AS XB? 25.0 : K2/3 GX 13+1 -17 09 26 1 1820-3023 18 23 40.5 GC AS 18.7B 0.007928 QPO 4U 1820-30 -30 21 39 1 XB 1850-0846 18 53 04.8 GC XB 20.3 0.01427 -08 42 20 1