The Washington Double Star Catalog - Web Search Interface

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How numeric groups A/B/C work:

Each numeric filter belongs to one of the groups A, B, or C.

  • All filters inside the same group are combined using AND.
  • The groups themselves are combined using OR.
  • This produces a structure like:
    (A1 AND A2) OR (B1 AND B2) OR (C1)
  • Global filters (text search, minimum observations, “only orbits”) apply before the groups.
Examples:
  • If Filter 1 and Filter 2 are in group A, and Filter 3 is in group B, the query is: (Filter1 AND Filter2) OR (Filter3)
  • If Filter 1, Filter 2, Filter 3 and Filter 4 are in the same group A, the query is: Filter1 AND Filter2 AND Filter3 AND Filter4
COORD DISC COMP FSTDATE LSTDATE NOBS FSTPA LSTPA FSTSEP LSTSEP FSTMAG SECMAG STYPE PM1RA PM1DC PM2RA PM2DC DNUM NOTES ACOORD ALT.(°) Dist (arcmin) SIMBAD GAIA ALADIN ORBITS
23597+2305 TDT4311 1991 2015 3 157 147 1.2 1.1 11.16 11.71 106 -27 106 -27 +22 4937 235944.23+230437.9 — SIMBAD GAIA ALADIN No
23597+2843 PTF 30 2012 2012 1 317 317 1.0 1.0 15.80 17.70 15 3 235939.51+284326.8 — SIMBAD GAIA ALADIN No
23597+3748 ES 2443 AB 1929 2014 9 231 234 73.5 77.6 8.86 12.22 B9 7 -9 -56 -12 +36 5141 235939.53+374758.7 — SIMBAD GAIA ALADIN No
23597+3748 ES 2443 BC 1930 2015 10 150 131 7.3 10.2 10.90 11.40 -56 -12 -3 -4 235934.36+374712.4 — SIMBAD GAIA ALADIN No
23597+7234 TDT4310 1991 1991 1 158 158 0.5 0.5 10.58 10.61 7 19 7 19 +71 1243 X 235940.22+723331.9 — SIMBAD GAIA ALADIN No
23597-3500 LDS6078 AB 1912 2017 12 213 212 146.5 138.0 9.14 9.87 K1III 50 -28 110 10 -3516020 N 235942.13-345953.2 — SIMBAD GAIA ALADIN No
23597-3500 B 2511 BC 1930 2016 15 160 171 4.0 4.5 9.87 15.10 K0 106 8 -3516019 NT 235936.07-350152.9 — SIMBAD GAIA ALADIN No
23597-3500 WSP 8 BD 2016 2016 1 240 240 21.5 21.5 9.90 19.50 K0 106 8 235936.07-350152.9 — SIMBAD GAIA ALADIN No
23597-4405 WSI 140 2010 2023 14 300 36 0.3 0.1 13.40 13.90 M7 -19 275 O 235944.83-440459.9 — SIMBAD GAIA ALADIN Yes
23598+0640 BAG 31 Aa,Ab 2001 2017 3 195 201 0.2 0.3 9.50 10.00 K5 -61 -169 +05 5244 X 235947.82+063952.4 — SIMBAD GAIA ALADIN No
23598+0640 ALD 8 AB 1915 2015 13 27 19 3.0 4.9 9.40 12.20 K5 -51 -166 +05 5244 235947.82+063952.4 — SIMBAD GAIA ALADIN No
23598+0848 LDS5151 Aa,Ab 2015 2016 2 283 283 1.3 1.3 14.60 14.70 161 74 160 81 T 235954.43+084838.5 — SIMBAD GAIA ALADIN No
23598+0848 LDS5151 AB 1960 2010 4 145 145 99.0 98.1 14.83 16.66 166 84 166 84 235954.43+084838.5 — SIMBAD GAIA ALADIN No
23598+1116 BU 1533 1901 2010 4 122 119 25.7 25.4 6.75 11.10 A2 11 1 20 7 +10 5017 235947.81+111624.3 — SIMBAD GAIA ALADIN No
23598+1744 BPM2499 1996 2016 9 153 153 15.9 15.9 13.59 14.40 -34 1 -11 -31 NV 235947.82+174347.8 — SIMBAD GAIA ALADIN No
23598+5653 STI3074 1917 2015 8 296 295 10.0 8.7 11.94 12.50 4 -12 4 -15 235948.42+565327.0 — SIMBAD GAIA ALADIN No
23598+6004 HAU 29 1898 2015 13 117 114 20.0 22.4 9.36 11.20 B9V -5 0 11 -6 +59 2804 235947.51+600419.2 — SIMBAD GAIA ALADIN No
23598+6302 TDT4312 AB 1991 1991 1 94 94 0.6 0.6 11.03 11.17 156 -32 156 -32 XW 235947.05+630148.0 — SIMBAD GAIA ALADIN No
23598-0741 GKM9547 Aa,Ab 2022 2022 1 58 58 0.5 0.5 10.90 12.90 -54 -93 -08 6223 WR 235945.11-074042.9 — SIMBAD GAIA ALADIN No
23598-1845 HU 600 1901 2016 13 16 11 2.0 1.8 10.10 11.57 F3V 9 -22 9 -22 -19 6552 235950.08-184522.1 — SIMBAD GAIA ALADIN No
23598-7130 TDS1234 1991 2016 4 107 105 1.2 1.3 10.31 10.44 G0/2V 52 -29 -72 2793 235950.15-713014.4 — SIMBAD GAIA ALADIN No
23599+0048 HJ 3230 1831 2015 14 355 268 4.0 20.2 11.93 13.90 21 -22 U 235958.10+004856.8 — SIMBAD GAIA ALADIN No
23599+1413 SKF1113 2001 2016 5 171 171 1.6 1.6 16.30 16.60 M0 -7 17 235956.44+141302.5 — SIMBAD GAIA ALADIN No
23599+2353 DVG 51 1998 2016 9 1 1 72.8 72.7 15.30 15.60 57 -27 62 -27 235953.71+235243.3 — SIMBAD GAIA ALADIN No
23599+2915 SKF1114 2003 2016 3 78 73 1.3 1.0 16.40 16.40 M2 10 -22 235956.80+291526.2 — SIMBAD GAIA ALADIN No
23599+5216 TDT4314 1991 2023 4 125 130 1.9 1.7 10.30 11.80 -13 9 -13 9 +51 3754 235956.50+521555.1 — SIMBAD GAIA ALADIN No
23599+5704 STI3075 1906 2015 12 180 179 9.3 9.6 11.73 11.33 -4 -4 2 -4 235954.91+570448.3 — SIMBAD GAIA ALADIN No
23599+6108 TDT4313 AB 2016 2016 1 295 295 3.7 3.7 10.40 17.30 F5 34 -57 235956.25+610743.1 — SIMBAD GAIA ALADIN No
23599+6108 SKF2832 AB,C 1999 2016 4 248 248 22.3 22.2 10.50 18.20 F5+M: 34 -57 35 -56 V 235956.25+610743.1 — SIMBAD GAIA ALADIN No
23599+6113 STI1247 1901 2015 11 249 249 15.3 14.5 10.65 12.01 -2 -2 -3 -2 235945.98+611304.2 — SIMBAD GAIA ALADIN No
23599+8515 LOC 568 2015 2016 2 161 161 3.1 3.1 11.50 14.50 59 9 59 8 T 235953.24+851505.4 — SIMBAD GAIA ALADIN No
23599-0412 CBL 551 1994 2016 9 151 151 77.1 77.1 16.50 17.10 -51 -96 -52 -96 V 235954.91-041212.9 — SIMBAD GAIA ALADIN No
23599-0937 KPP 539 1998 2016 6 242 242 3.7 3.7 11.90 13.70 17 -1 17 -3 V 235951.23-093644.5 — SIMBAD GAIA ALADIN No
23599-1818 LDS6408 1958 1958 1 272 272 2.0 2.0 18.60 18.70 X . . — Invalid Invalid Invalid No
23599-3112 TDT4315 1991 1991 1 248 248 0.7 0.7 11.54 11.90 1 0 1 0 -3119543 X 235953.60-311201.2 — SIMBAD GAIA ALADIN No

Results: 35 rows (page 3147)


Description of Data in the WDS

COORD   : 2000 Coordinates
DISC    : Discoverer & Number
COMP    : Components
FSTDATE : Date of the first observations
LSTDATE : Date of the last observations
NOBS    : Number of Observations
FSTPA   : Position Angle in degrees for FSTDATE
LSTPA   : Position Angle in degrees for LSTDATE
FSTSEP  : Separation in seconds of arc for FSTDATE
LSTSEP  : Separation in seconds of arc for LSTDATE
FSTMAG  : Magnitude of First Component
SECMAG  : Magnitude of Second Component
STYPE   : Spectral Type (Primary/Secondary)
PM1RA   : Primary Proper Motion in seconds of arc per 1000 years (RA)
PM1DC   : Primary Proper Motion in seconds of arc per 1000 years (Dec)
PM2RA   : Secondary Proper Motion in seconds of arc per 1000 years (RA)
PM2DC   : Secondary Proper Motion in seconds of arc per 1000 years (Dec)
DNUM    : Durchmusterung Number
NOTES   : Notes (see below)
ACOORD  : 2000 arcsecond coordinates

Columns added for this website

SIMBAD : Opens a new tab to a SIMBAD page
GAIA   : Opens a new tab to a GAIA DR3 page
ALADIN : Opens a new tab to an ALADIN image
ORBITS : Shows the orbit parameters if it exists in the Sixth Catalog of Orbits of Visual Binary Stars

WDS Notes (NOTES column meaning)

N: Notes found in the Notes table.
B: Summary line gives blue magnitudes.
C: Orbit and Linear solution.
I: Identification uncertain.
K: Infrared magnitudes.
L: Linear solution.
M: Magnitude modified.
O: Orbit exists.
P: Proper motion.
R: Red magnitudes.
S: Non-physical pair.
T: Physical pair.
U: Non-physical.
V: Physical.
W: Additional components.
X: Dubious double.
Y: Non-physical (parallax).
Z: Physical (parallax).

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