Sixth Catalog of Orbits of Visual Binary Stars — Web Search Interface

Text search:     Filter:     Orbit grade filter:     Sort by:     Rows per page:        

Results: 4051 rows (page 1)

Move the mouse over the image file to zoom in on the orbit or click on it for details and ephemerides.

WDS designation Discover designation ADS number HD number Hipparcos number RA (2000) DEC (2000) image file orbit grade equinox last observation notes reference mag 1 (V) flag mag 1 mag 2 (V) flag mag 2 period P units P error semi-major axis a units a error inclination i error node (Omega) flag node node error time of periastron T0 units T0 error eccentricity e error longitude of periastron (omega) omega error
00000-1930 LTT 9831 224690 2 000000.91 -192955.80 9 1991 yes HIP1997d 9.0 499.7989 d 18.8466 14.31 a 2.81 118.06 5.05 77.28 5.20 48397.3164 d 10.1805 0.0000 0.00
00003-4417 I 1477 224750 25 000019.10 -441726.00 3 2000 2022 Tok2023a 6.80 7.56 115.4 y 2.9 0.435 a 0.014 65.6 2.6 147.5 1.5 2011.58 y 0.86 0.717 0.020 297.3 2.2
00006-5306 HJ 5437 224782 50 000034.35 -530551.80 5 2015 Izm2019 6.55 9.85 904.0236 y 362.8075 2.80380 a 1.04206 49.893 14.260 5.860 30.497 2063.3249 y 16.3824 0.81172 0.14686 79.676 10.079
00008+1659 BAG 18 000048.09 +165917.50 5 2018 Tok2019c 8.79 12.6 66.62 y 0.531 a 167.7 142.2 1990.25 y 0.372 358.9
00014+3937 HLD 60 17178 224873 110 000123.67 +393638.20 3 2015 yes Izm2019 9.09 9.77 217.2694 y 16.5701 0.87865 a 0.01750 128.050 4.231 147.353 2.957 1903.2511 y 1.6226 0.63041 0.01456 148.186 5.431
00015+3044 HO 208 17167 224882 114 000129.19 +304408.70 5 2015 Izm2019 8.20 9.81 649.6410 y 319.4783 2.20987 a 1.67551 103.903 8.166 175.491 5.153 2054.9367 y 19.0547 0.77651 0.18187 76.124 12.674
00021-6817 I 699AB 224953 169 000208.72 -681650.60 5 2000 2000 Zir2013d 9.71 10.56 290.0 y 2.738 a 57.7 117.8 1884.54 y 0.65 207.1
00022+2705 BU 733AB 17175 224930 171 000210.18 +270455.60 1 yes Mdz2022 5.83 8.9 26.603 y 0.02 0.819 a 0.003 49.912 0.32 109.314 0.4 1882.997 y 0.07 0.358 0.003 279.052 0.3
00023-1324 GAA 22Aa,Ab 224974 179 000216.68 -132426.80 2 GaA2023 5.8 k 7.7 k 10.658451 d 0.000005 2.073 m 0.004 53.4 0.1 28.21 0.08 59388.250 d 0.001 0.3391 0.0002 76.861 0.03
00024+1047 A 1249AB 17180 224994 190 000225.33 +104635.90 3 yes Tok2024d 9.91 9.37 58.86 y 1.25 0.2004 a 0.0031 110.6 1.4 66.4 2.2 2002.92 y 0.55 0.806 0.022 18.6 0.806
00026+1841 HDS 2Aa,Ab 225000 201 000233.44 +184100.10 3 2000 2023 yes Tok2024a 8.49 10.62 22.68 y 0.34 0.1106 a 0.0028 59.8 1.3 17.4 2.3 2020.967 0.074 0.6313 0.0130 302.2 3.1
00026-0829 A 428 4 225015 210 000238.92 -082916.60 4 2000 2022 Tok2023a 9.82 10.07 761. y 0.793 a 108.8 197.9 1995.6 y 0.644 210.3
00028+0208 BU 281AB 9 225028 223 000247.14 +020749.40 5 2000 2014 yes Lin2015a 7.40 9.36 1117. y 3.140 a 108.5 149.9 2077.5 y 0.639 55.7
00036-3106 TOK 686 225120 290 000337.06 -310538.90 4 Tok2024c 7.5 10.6 14.014 y 0.1310 a 71.2 11.8 2013.792 y 0.233 264.9
00039-5750 I 700 225158 306 000354.07 -574949.60 4 2000 2021 Tok2021c 9.12 9.68 185. y 0.56 a 68.4 80.7 2067.4 y 0.47 231.3
00046+4206 CHR 122Aa,Ab 30 225218 365 000436.60 +420533.20 3 2000 2023 yes Mit2024 6.0 35.4 y 0.6 90. m 2. 119. 1. 133. 1. 2005.96 y 0.06 0.818 0.007 64. 1.
00047+3416 STF3056AB 32 225220 374 000440.09 +341554.70 4 2000 2009 Zir2015a 7.72 8.08 545. y 0.623 a 99.4 136.4 2142.0 y 0.670 119.6
00048+3810 BU 862 34 385 000446.86 +381025.20 4 2000 2024 JLA2025 10.02 10.18 476.9 y 3. 0.845 a 0.003 41.59 0.02 42.9 0.3 1942.86 y 0.03 0.723 0.001 199.3 0.3
00053-0542 33 Psc 28 443 000520.15 -054228.20 9 1991 yes HIP1997d 4.63 72.9300 d 4.57 m 1.08 35.97 37.26 66.30 25.28 48319.3281 d 5.0119 0.2720 337.71
00055+3406 HU 1201AB 51 39 461 000529.06 +340620.40 3 2000 1998 yes Zir2003 8.20 9.76 47.06 y 0.138 a 91.5 128.1 1983.89 y 0.651 23.9
00057+4549 STT 547AB 48 38 473 000541.03 +454843.30 4 2012 yes Pko2020b 8.98 9.15 553.5 y 120.3 6.39 a 0.89 54.3 2.3 12.5 2.8 2112.0 y 28.8 0.19 0.08 256.8 31.4
00057+4549 STT 547AF 48 38 473 000541.03 +454843.30 5 yes Kiy2001 8.98 10.19 830.37 c 205.1 a 75.9 74.3 26357. y 0.81 345.6
00059+1805 STF3060AB 60 113 495 000555.56 +180434.40 4 2015 yes Izm2019 9.32 9.65 3804.2824 y 874.5757 12.48656 a 6.33210 78.895 8.043 70.947 38.097 1339.1860 y 963.4660 0.82967 0.14080 289.172 31.722
00061+0943 HDS 7 126 510 000608.02 +094253.90 3 Tok2024c 8.47 8.88 51.23 y 1.11 0.2145 a 0.0032 60.0 0.9 184.1 1.1 2003.83 y 0.11 0.534 0.014 237.1 2.1
00063+5826 STF3062 61 123 518 000615.81 +582612.50 2 2000 yes Sod1999 6.42 7.32 106.7 y 1.44 a 45. 221. 1943.1 y 0.45 277.
00076-0433 STF3063 84 296 000735.68 -043251.10 5 2015 Izm2019 9.30 10.29 687.9954 y 339.4448 2.33846 a 0.95313 99.936 5.263 46.192 4.837 1781.1507 y 56.2815 0.49847 0.23849 97.779 45.289
00084+2905 MKT 11Aa,Ab 94 358 677 000823.17 +290527.00 2 1989 yes Doc2014h 2.22 4.21 96.7005 d 0.004382 0.02443 a 0.00039 105.5 0.37 285.2 2.5 47374.6 m 0.092103 0.534812 0.0046 77.4527 0.31
00085+3456 HDS 17 375 689 000828.39 +345604.30 2 2020 yes Mit2021 8.11 8.36 12.77 y 0.01 89.0 m 0.3 209.9 0.7 252. 2. 2006.41 y 0.01 0.527 0.002 11. 2.
00088+8647 NLTT 324 245 705 000850.82 +864716.30 9 2000 yes Ren2013 8.37 71.550 d 2.5 m 0.7 142.3 17.6 26.6 12.7 46405.920 d 0.221 140.8
00089+2050 BEU 1 000853.91 +205025.20 2 2000 2020 yes Jnn2022 12.7 14.3 5.92 y 0.01 143.8 m 1.6 145.3 1.6 84.2 1.6 2018.91 y 0.04 0.10 0.01 241. 4.
00090-5400 HDO 181 469 730 000902.35 -540007.10 3 2000 2018 yes Alz2020b 6.74 8.07 201.9 y 0.400 a 158.6 141.5 1981.29 y 0.380 13.2
00093+2517 NLTT 403 471 754 000915.63 +251656.30 9 1991 Gln2007 7.77 483. d 13. 9.8 m 2.8 74. 10. 169. 16. 48565. d 74. 0.22 0.31 112. 46.
00093+7943 STF 2 102 431 760 000920.18 +794252.40 3 2000 yes Hei1997 6.68 6.89 540. y 0.995 a 110.1 171.2 1887.5 y 0.715 333.7
00094-2759 BU 391AB 111 493 761 000921.02 -275916.50 4 2013 yes Izm2019 6.13 6.24 575.6506 y 247.6280 1.61369 a 0.48515 98.715 3.851 76.733 6.525 2087.6590 y 104.9476 0.50220 0.31475 272.711 42.552
00095+1907 COU 247 489 768 000928.15 +190656.80 4 2000 2010 Doc2012i 8.29 9.98 159.51 y 0.543 a 137.0 21.1 2005.80 y 0.309 103.4
00098-3347 SEE 3 546 794 000950.08 -334720.60 4 Tok2024c 9.56 9.74 295.7 y 8.6 0.928 a 0.020 33.1 2.0 274.3 3.4 1978.66 y 0.48 0.770 0.009 72.5 3.4
00100+0835 A 1801 120 807 000957.47 +083437.30 4 2000 2021 Tok2021c 9.5 9.5 229. y 0.435 a 94.1 195.9 2020.0 y 0.132 151.4
00101+3825 HDS 23Da,Db 823 001005.26 +382453.60 3 2000 2010 Cve2017b 11.42 12.85 25.912 y 0.232 0.1121 a 0.0017 130.5 6.0 119.0 10.1 2006.730 y 0.196 0.811 0.211 348.7 11.4
00106-7313 I 43AB 661 865 001038.56 -731327.70 5 2000 1996 yes Cve2010e 6.97 8.55 1637.7 y 84.0 2.762 a 0.177 95.6 1.8 172.8 5.3 2187.8 y 86.3 0.487 0.036 13.9 2.6
00111+0513 TOK 869 898 001104.61 +051232.30 4 Tok2024c 10.9 13.4 8.49 y 0.10 0.1112 a 0.0029 51.2 1.8 108.8 2.0 2018.22 y 0.18 0.183 0.018 239.7 8.0
00114+5850 SKW 1Aa,Ab 001125.83 +584928.60 4 2003 yes SKW2005 15. 19. 178.0 y 0.10 a 70. 48. 2021.0 y 0.31 300.
00114+5850 SKW 1Aa,Ab 001125.83 +584928.60 4 2003 yes SKW2005 15. 19. 412.1 y 0.17 a 70. 243. 2009.0 y 0.69 63.
00114+5850 SKW 1Aa,Ab 001125.83 +584928.60 4 2003 yes SKW2005 15. 19. 462.7 y 0.14 a 0.3 31. 2014.0 y 0.90 344.
00114+5850 SKW 1Aa,Ab 001125.83 +584928.60 4 2003 yes SKW2005 15. 19. 62.7 y 0.05 a 0.4 33. 2009.5 y 0.90 14.
00118+2825 BU 255 147 744 956 001150.13 +282524.00 4 2000 2008 Zir2015a 7.88 8.97 245. y 0.661 a 116.0 166.1 2067.2 y 0.960 265.4
00121-5832 RST4739 791 975 001205.19 -583129.30 3 2000 2018 Cve2020 8.44 8.61 38.23 y 0.226 a 155.6 50.1 2027.97 y 0.551 275.8
00121+5337 BU 1026AB 148 761 981 001208.05 +533726.10 2 2000 yes Hrt1996a 7.25 8.46 66.84 y 0.17 0.2514 a 0.0055 42.77 0.84 254.9 1.2 1986.542 y 0.029 0.8282 0.0058 255.2 1.1
00122+4647 A 802 149 764 984 001210.31 +464629.70 5 2000 1991 yes Msn2001c 9.70 10.35 269.52 y 0.260 a 108.8 125.6 1972.51 y 0.511 266.6
00125+1434 LN Peg 999 001230.12 +143349.30 9 1991 yes HIP1997d 8.59 1251.3550 d 88.1887 18.39 m 1.24 81.27 5.77 118.04 4.23 48480.6250 d 16.4729 0.0000 0.00
00125-3219 B 1023 824 1001 001230.94 -321915.00 4 2000 2023 Tok2023a 9.51 10.86 300. y 0.349 a 145.0 221.9 1979.29 y 0.861 270.0


Description of Columns

RA (2000)               : epoch-2000 right ascension (hours, minutes, seconds)
DEC (2000)              : epoch-2000 declination (degrees, minutes, seconds)
WDS designation         : based on arcminute-accuracy epoch-2000 coordinates)
Discover designation    : Discover designation and components, or other catalog designation
ADS number              : ADS (Aitken Double Star catalog) number
HD number               : HD catalog number
Hipparcos number        : Hipparcos catalog number
mag 1 (V)               : Magnitude of the primary (usually V)
flag mag 1              : flag:
                          > = fainter than quoted magnitude
                          < = brighter than quoted magnitude 
                          v = variable magnitude
                          k = magnitude is in K-band or other infrared band
                          ? = magnitude is uncertain
mag 2 (V)               : Magnitude of the secondary (usually V)
flag mag 2              : flag:
                          > = fainter than quoted magnitude
                          < = brighter than quoted magnitude 
                          v = variable magnitude
                          k = magnitude is in K-band or other infrared band
                          ? = magnitude is uncertain
period                  : Period (P)
P units                 : Code for units:
                          m = minutes (not yet used!)
                          h = hours (not yet used!)
                          d = days
                          y = years
                          c = centuries (rarely used)
P error                 : Published formal error in P (in same units as for P)
semi-major axis         : Semi-major axis (a)
a units                 : Code for units:
                          a = arcseconds
                          m = milliarcseconds (mas)
                          M = arcminutes (used only for alp Cen + Proxima Cen)
                          u = microarcseconds (uas - not yet used)
a error                 : Error in a. Units are the same as for a
inclination             : Inclination (i), in degrees
i error                 : Error in i
node (Omega)            : Node (Omega), in degrees. An identified ascending node is indicated by
                          an asterisk following the value.
flag node               : If the ascending node is later determined to off by 180deg, it is flipped,
                          and a "q" code added to indicate the change. 
node error              : Error in Omega
time of periastron      : The time of periastron passage (T0)
T0 units                : Code for units:
                          c = centuries (fractional year / 100; used only for alp Cen + Proxima Cen) 
                          d = truncated Julian date (JD-2,400,000 days)
                          m = modified Julian date  (MJD = JD-2,400,000.5 days)
                          y = fractional Besselian year
T0 error                : Error in T0. Units are the same as for T0
eccentricity            : Eccentricity (e)
e error                 : Error in e
longitude of periastron : Longitude of periastron (omega), in degrees, reckoned 
(omega)                   from the node as listed. If the published omega value 
                          is later determined to fall in the wrong quadrant, the 
                          value is flipped by 180deg; a letter "q" indicates the 
                          quadrant has been corrected.
omega error             : Error in omega
equinox                 : Equinox, if any, to which the node refers
last observation        : Date of the last observation used in the orbit calculation, if published.
orbit grade             : Orbit grade, ranging from 1 ("definitive") to 5 
                          ("indeterminate"). Additionally, a grade of 8 is used
                          for interferometric orbits based on visibilities 
                          rather than rho and theta measures (hence not gradable
                          by the present scheme) and a grade of 9 indicates an
                          astrometric binary (also lacking rho and theta data).
notes                   : A clickable flag "yes" to any notes for this system. 
reference               : A clickable code for the reference (usually based on the name of
                          the first author and the date of publication).
                          The bibcode in the references file is clickable and links to ADS.
image file              : Name of image file (png format) illustrating orbit and
                          all associated measures in the Washington Double Star 
                          database.

The data presented here comes from the USNO website (updated: February 2026)