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

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Results: 4051 rows (page 8)

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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
01546+2049 MKT 3 11636 8903 015438.35 +204829.90 2 yes Pbx2000b 2.6 r 5.2 r 106.99442 d 0.00069 36.0 m 0.54 47.5 0.54 83.3 0.27 44809.1016 d 0.0066 0.8801 0.00080 204.9 0.33
01549+4042 HR 551 11613 8922 015453.75 +404207.90 9 1992 Jnc2005 6.26 838.0 d 8.14 m 0.93 23.6 1.8 155.7 4.1 43521.5 d 0.00 0.0
01551+2847 STF 183AB 1522 11671 8938 015507.39 +284752.60 3 1997 yes USN2000b 7.67 10.0 332.79 y 0.489 a 121.3 170.3 1966.42 y 0.523 290.5
01554+0257 A 2407 1530 8958 015522.03 +025724.10 4 2000 2015 yes Tok2021c 10.0 10.5 184.4 y 6.2 0.757 a 0.012 48.0 0.9 181.2 2.3 1976.0 y 2.4 0.113 0.024 49.3 6.9
01556+0146 BU 1367 1533 015533.97 +014556.90 5 2001 yes Izm2019 10.4 10.7 882.5951 y 507.172 3.75320 a 2.38687 80.859 10.00 19.732 10.395 1884.0678 y 31.8613 0.88304 0.12481 291.812 27.663
01559+0151 STF 186 1538 11803 8998 015553.80 +015059.60 2 yes Msn2023 6.79 6.84 167.7 y 3.1 1.048 a 0.035 74.6 2.4 220.07 0.65 1893.8 y 3.1 0.717 0.057 224.3 3.5
01559-2150 DON 27 11840 9006 015556.74 -214931.50 4 2000 2021 Tok2022g 8.79 10.6 460.0 y 0.588 a 117.6 43.0 2017.675 y 0.587 77.1
01570+3101 A 819AB 1548 11849 9087 015701.33 +310122.40 3 2020 yes Lin2022b 8.16 9.30 138.6 y 3.7 0.421 a 0.026 48.8 2.3 154.1 1.5 2010.80 y 0.41 0.546 0.006 186.8 2.3
01576+4205 NLTT 6522 9121 015734.65 +420437.00 9 2000 1991 yes Ren2010 9.01 694.870 d 0.35 22.2 m 1.8 96.0 5.7 214.1 7.7 47889.5 d 1.1 0.570 0.007 310.2 1.1
01577+4434 A 1526 1554 11869 9128 015740.62 +443348.00 4 2000 1995 Cve2010e 8.7 8.8 877.5 y 53.7 0.648 a 0.060 100.2 2.0 112.6 1.3 1919.6 y 55.4 0.449 0.041 187.4 3.2
01588-6134 alp Hyi 12311 9236 015845.87 -613411.70 9 1991 yes HIP1997d 2.90 605.9628 d 4.0765 21.66 m 1.38 42.50 3.88 85.09 6.92 48586.0781 d 5.3707 0.6426 0.0537 233.96 7.56
02009-4350 I 265 12439 9408 020052.92 -434951.40 4 2000 2008 Hrt2010a 8.63 9.64 775.00 y 1.209 a 68.9 222.60 1977.26 y 0.744 271.2
02012+1634 BU 515 1605 12315 9434 020109.75 +163354.50 5 2024 Tok2025b 7.70 11.2 220. y 0.795 a 63.2 74.7 2024.505 y 0.762 346.3
02020+7054 BU 513AB 1598 12111 9480 020157.55 +705425.40 2 2000 2023 yes Doc2024b 4.65 6.74 60.43 y 0.30 0.624 a 0.002 18.9 2.0 56.7 0.5 1964.52 y 0.20 0.349 0.003 10.3 2.0
02020+0246 STF 202AB 1615 12446 9487 020202.80 +024549.40 4 2000 2015 yes Sca2015c 4.10 5.17 3267.4 y 7.400 a 113.4 3.7 2188.58 y 0.465 147.9
02022-2402 HDS 272AB 12515 9497 020211.25 -240223.80 5 2000 2010 Hrt2011d 8.01 11.7 138.54 y 0.970 a 111.1 89.6 2074.75 y 0.513 274.2
02022-2402 TOK 41Ba,Bb 12515 9497 020211.25 -240223.80 3 2017 Tok2018j 8.5 8.8 14.40 y 0.89 0.102 a 0.005 152.5 4.3 120.5 13.2 2006.400 y 0.58 0.058 0.051 227.2 16.9
02022+3643 A 1813AB 1613 12376 9500 020212.83 +364301.60 1 2014 Tok2020i 8.7 8.9 12.903 y 0.019 0.1496 a 0.0017 66.1 0.7 191.6 0.8 1989.090 y 0.036 0.415 0.008 113.7 1.0
02022+3643 A 1813AB,C 1613 12376 9500 020212.83 +364301.60 5 2009 Izm2019 8.29 11.1 234.6893 y 208.088 1.40294 a 0.51872 118.095 12.57 173.071 16.558 1895.7486 y 24.5043 0.52293 0.21429 131.547 38.966
02035-0455 TOK 873 9603 020330.23 -045441.30 4 2000 2024 Tok2024e 10.5 13.3 49.9 y 18.8 0.443 a 0.118 46.0 3.6 74.1 4.6 2019.537 y 0.155 0.542 0.120 184.6 2.0
02037+2556 STF 208AB 1631 12558 9621 020339.26 +255607.60 3 yes Hei1996a 5.82 7.87 325. y 1.39 a 51. 20.5 1931.6 y 0.59 165.
02038-0020 TOK 38Aa,Ab 1634 12641 9631 020348.12 -002024.50 3 yes Tok2020e 6.15 7.97 5.66 y 0.0 0.0377 a 0.0009 71.7 3.8 271.9 2.1 2005.42 y 0.02 0.367 0.006 30.5 1.0
02039+4220 STT 38BC 1630 12534 9640 020353.92 +421947.50 2 2000 2010 yes Doc2017a 5.3 6.5 62.63 y 0.317 a 104.8 103.2 1951.98 y 0.874 163.4
02039-4525 RST2272 12759 9642 020355.25 -452446.50 4 2000 2015 Tok2016b 7.37 11.6 415.0 y 1.659 a 36.0 301.3 2327.57 y 0.2645 175.5
02048+6030 A 957 1632 12529 9704 020448.71 +603022.70 5 2000 2012 FMR2020a 8.52 10.4 219.97 y 0.471 a 125.3 107.7 1870.07 y 0.462 250.1
02051-1737 BEU 3 9724 020504.84 -173652.60 4 2017 yes MnA2019 5.57 9.39 13.328 y 0.037 495.5 m 1.2 91.771 0.057 102.987 0.022 61554. d 14. 0.3771 0.0082 245.62 0.48
02051+7717 SHJ 22A 12230 9727 020507.05 +771653.20 9 1991 yes HIP1997d 5.28 1616.2692 d 132.678 39.32 m 7.57 148.25 8.51 64.59 12.15 47969.2578 d 45.3193 0.0000 0.00
02057-2423 WSI 71Aa,Ab 1652 12889 9774 020541.51 -242233.80 3 2000 2012 yes Tok2014b 9.27 9.50 2.582 y 0.003 0.048 a 0.003 75.9 4.0 127.2 4.6 2010.917 y 0.015 0.769 0.015 287.9 1.5
02057-2423 I 454AB 1652 12889 9774 020541.51 -242233.80 4 2000 2014 yes Tok2014b 8.62 11.3 213. y 213. 1.03 a 0.66 76. 11. 140. 8. 2057. y 43. 0.45 0.84 175. 85.
02060-2209 SEE 16 1665 12912 9798 020559.35 -220903.00 4 2000 2019 Tok2019h 8.88 9.30 228. y 0.404 a 101.8 33.8 1971.9 y 0.585 133.1
02087-1005 HU 16 1674 13191 020842.29 -100518.90 5 2000 2013 Tok2017c 9.30 10.5 485.0 y 1.173 a 45.4 338.8 1929.62 y 0.0 0.0
02090+3540 COU1067 13102 10022 020902.07 +354029.50 4 BAE2021 8.94 9.44 133.9 y 9.4 0.239 a 0.011 77.2 0.2 20.2 0.2 1980.5 y 0.3 0.554 0.015 271.2 3.4
02091+4048 BX And 13078 10027 020903.42 +404739.10 7 yes Pbl2006 8.98 62. y 9. 74.5 0.3 0.3
02095+3459 MKT 4 13161 10064 020932.52 +345914.60 1 2000 1990 yes MkT1995 3.00 31.387 d 0.001 8.02 m 0.05 129.9 0.2 64.9 0.3 47729.07 d 0.03 0.440 0.002 298.1 0.2
02104-5049 ESG 1 13445 10138 021025.98 -504925.20 5 2000 2012 yes Msn2017c 6.17 13.2 341.5 y 4.393 a 125.4 79.6 2000.5 y 0.49 306.4
02104-5049 ESG 1 13445 10138 021025.98 -504925.20 5 2000 yes Bdt2019 6.17 13.2 72. y 8. 2.010 a 0.070 125.4 0.9 232.2 1.7 69900. d 300. 0.53 0.04 311.9 3.4
02107+4426 COU1667 021043.10 +442618.20 4 BAE2021 9.2 9.2 223.2 y 28.2 0.218 a 0.019 124.2 1.3 58.5 1.2 2009.8 y 0.6 0.596 0.014 77.2 5.5
02114+6221 STF 216 1682 13196 021121.54 +622052.60 5 Alz2024e 8.1 9.0 410. y 104. 0.434 a 0.081 122.4 11.9 61.2 10.7 1981. y 4.0 0.929 0.032 309.7 15.3
02124+3018 STF 227 1697 13480 10280 021222.28 +301811.10 4 yes FMR2020c 5.26 6.67 5172.5 y 7.037 a 110.3 158.8 4960.3 y 0.63 277.5
02124+3018 STF 227 1697 13480 10280 021222.28 +301811.10 4 yes FMR2020c 5.26 6.67 2647.0 y 4.502 a 119.9 169.6 3164.1 y 0.74 270.3
02128-0224 TOK 39Aa,Ab 1703 13612 10305 021247.54 -022337.10 3 2019 yes Tok2020e 6.18 6.69 0.2595 y 0.0144 a 30.0 241.0 1989.5599 y 0.689 74.3
02132+4030 HEL 5Ba,Bb 13507 10321 021254.96 +404007.00 4 2000 2015 yes Hel2016 5.6 9.4 20.960 y 0.063 0.3180 a 0.0048 160.4 1.6 245.27 0.53 52343.7 d 9.8 0.3781 0.0036 350.22 0.62
02130+0851 MCA 5 13611 10324 021300.01 +085048.30 9 1991 yes HIP1997d 4.34 1642.1000 d 4.52 m 4.50 106.47 15.34 71.24 23.97 34985.5000 d 0.0000 0.00
02132+4414 CHR 5 13520 10340 021313.34 +441354.10 9 2000 yes Ren2013 4.8 748.200 d 2.4 m 0.6 54.1 19.9 344.5 10.3 37886.000 d 0.340 358.0
02133+3649 JNN 18 021320.62 +364850.60 2 2016 yes MnA2019 14.2 16.6 6.419 y 0.071 161.5 m 1.3 115.30 0.24 83.73 0.33 57604.5 d 2.9 0.4232 0.0039 207.66 0.73
02136+5104 BAG 1Aa,Ab 13530 10366 021336.34 +510356.90 9 1991 yes HIP1997d 5.31 1650.0000 d 16.75 m 1.50 115.60 7.72 168.33 10.49 47205.4414 d 67.9757 0.7500 270.00
02136-5721 HDS 296 13096 10362 021333.55 -572041.90 4 2000 2018 Tok2018i 8.85 10.3 75.3 y 0.175 a 74.2 100.9 2023.8 y 0.40 41.3
02140+4729 STF 228 1709 13594 10403 021402.43 +472903.30 2 2000 2015 yes Pru2017 6.56 7.21 145.41 y 0.47 0.89 a 0.02 63.75 0.17 99.07 0.25 1899.07 y 0.21 0.2626 0.0016 322.66 0.60
02143-4952 TOK 815 13949 10421 021418.51 -495144.60 3 Tok2024c 9.9 10.0 9.196 y 0.1446 a 78.0 273.4 2017.400 y 0.300 111.7
02145+6631 MCA 6 13475 10438 021429.10 +663128.00 2 2020 yes Mit2021 6.4 7.6 40.0 y 0.1 82.3 m 0.3 24. 1. 83.1 4.5 2029.4 y 0.1 0.362 0.003 223.3 4.7


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: April 2026)