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Current system
20261+5122
WFC 233


Nearby doubles
17' : 20266+5106
HDS2923

22' : 20265+5101
KPP4198

30' : 20285+5141
KPP2206

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KPP1006

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RAO 435

49' : 20286+5039
HJ 1524

53' : 20318+5128
TDT2339

54' : 20207+5139
TDT2192

56' : 20205+5140
TDT2189

58' : 20200+5116
ES 800AB

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TDT2169

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ES 988

68' : 20323+5048
RAO 615

69' : 20205+5039
KPP 470

70' : 20203+5205
TDT2185

70' : 20336+5131
KPP2429AB

72' : 20334+5142
TDT2369

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HDS2903

73' : 20239+5232
A 1428

76' : 20311+5022
ES 1101

79' : 20304+5014
ES 1100

79' : 20183+5152
HDS2900

81' : 20176+5113
TDS1056

83' : 20223+5237
ES 989

84' : 20349+5109
ES 990

85' : 20188+5212
ES 2692



Selections
Full WDS
Binocular doubles
Binary Systems
Triple Systems
Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20261+5122 WFC 233

 
 
20h 26m 07.66s +51° 22' 06.0" P.A. 322.00 sep 5.1 mag 11.29,12.19
 
 
Coord 2000 20261+5122 Discov num WFC 233 Comp Coord arcsec 2000 20 26 07.66 +51 22 06.0
Date first 1899 Date last 2015 Obs 10
Pa first 323 Pa last 321.5 P.A. Now (θ) 321.5°
Sep first 5.8 Sep last 5.127 Sep. Now (ρ) 5.127"
Mag pri 11.29 Mag sec 12.19 delta mag (ΔM) 0.9 Spectral class
Pri motion ra -005 Sec motion ra -006
Pri motion dec -027 Sec motion dec -026
Notes V (Proper motion indicates physical)
rPM=0.052 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3584-00036-1 Gaia DR2 2181105068619251840
 
 
WDS 20261+5122 WFC 233 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
WFC (Washington Fundamental Cat. - astrographs)
WFC1939 Pa - Schlesinger, F. & Barney, I. 1939TOYal..11....1S
WFC1939 Trans. Astron. Obs. Yale Univ., 11, 1, 1939 (-10 to -14 deg zones)
WFC1940a Pa - Schlesinger, F. & Barney, I. 1940TOYal..12a...1S
WFC1940a Trans. Astron. Obs. Yale Univ., 12a, 1, 1940 (-14 to -18 deg zones)
WFC1940b Pa - Schlesinger, F. & Barney, I. 1940TOYal..12b...1S
WFC1940b Trans. Astron. Obs. Yale Univ., 12b, 1, 1940 (-18 to -20 deg zones)
WFC1943a Pa - Schlesinger, F. & Barney, I. 1943TOYal..13a...1S
WFC1943a Trans. Astron. Obs. Yale Univ., 13a, 1, 1943 (-20 to -22 deg zones)
WFC1943b Pa - Schlesinger, F. & Barney, I. 1943TOYal..13b...1S
WFC1943b Trans. Astron. Obs. Yale Univ., 13b, 1, 1943 (-27 to -30 deg zones)
WFC1943c Pa - Schlesinger, F. & Barney, I. 1943TOYal..14....1S
WFC1943c Trans. Astron. Obs. Yale Univ., 14, 1, 1943 (-22 to -27 deg zones)
WFC1945a Pa - Barney, I. 1945TOYal..16....1B
WFC1945a Trans. Astron. Obs. Yale Univ., 16, 1, 1945 (-06 to -10 deg zones)
WFC1945b Pa - Barney, I. 1945TOYal..17....1B
WFC1945b Trans. Astron. Obs. Yale Univ., 17, 1, 1945 (-02 to -06 deg zones)
WFC1947 Pa - Barney, I. 1947TOYal..18....1B
WFC1947 Trans. Astron. Obs. Yale Univ., 18, 1, 1947 (+15 to +20 deg zones)
WFC1948 Pa - Barney, I. 1948TOYal..19....1B
WFC1948 Trans. Astron. Obs. Yale Univ., 19, 1, 1948 (+09 to +15 deg zones)
WFC1949 Pa - Barney, I. 1949TOYal..20....1B
WFC1949 Trans. Astron. Obs. Yale Univ., 20, 1, 1949 (+01 to +05 deg zones)
WFC1950a Pa - Baillaud, J. .
WFC1950a Paris Obs., 1950 (+17 to +25 deg zones)
WFC1950b Pa - Barney, I. 1950TOYal..21....1B
WFC1950b Trans. Astron. Obs. Yale Univ., 21, 1, 1950 (+01 to -02 deg zones)
WFC1950c Pa - Barney, I. 1950TOYal..22A...1B
WFC1950c Trans. Astron. Obs. Yale Univ., 22, 1, 1950 (+05 to +09 deg zones)
WFC1953 Pa - Barney, I. 1953TOYal..24....1B
WFC1953 Trans. Astron. Obs. Yale Univ., 24, 1, 1954 (+25 to +30 deg zones)
WFC1954a Pa - Jackson, J. & Stoy R.H. 1954AnCap..17.....J
WFC1954a Ann. Cape Obs. London 17, 1954
WFC1954a Cape Photographic Catalogue for 1950.0., Vol. 17: Zone -30 deg to -35 deg
WFC1954b Pa - Jackson, J. & Stoy R.H. 1954AnCap..18.....J
WFC1954b Ann. Cape Obs. London 18, 1954
WFC1954b Cape Photographic Catalogue for 1950.0., Vol. 18: Zone -35 deg to -40 deg
WFC1954c Pa - Barney, I. 1954TOYal..25....1B
WFC1954c Trans. Astron. Obs. Yale Univ., 25, 1, 1954 (+20 to +25 deg zones)
WFC1954d Pa - Barney, I., Hoffleit, D., & Jones, R.B. 1954TOYal..26....1B
WFC1954d Trans. Astron. Obs. Yale Univ., 26, 1, 1954 (+85 to +90 deg zones)
WFC1955 Pa - Jackson, J. & Stoy R.H. 1955AnCap..19.....J
WFC1955 Ann. Cape Obs. London 19, 1955
WFC1955 Cape Photographic Catalogue for 1950.0., Vol. 19: Zone -52 deg to -56 deg
WFC1958a Pa - Schorr, R. & Kohlschuetter, A. .
WFC1958a AGK2 Cat. North of -2.5 deg, Vol. 1-15, 1958 (Bergedorf)
WFC1958b Pa - Schorr, R. & Kohlschuetter, A. .
WFC1958b AGK2 Cat. North of -2.5 deg, Vol. 1-15, 1958 (Bonn)
WFC1958c Pa - Jackson, J. & Stoy R.H. 1958AnCap..20..155J
WFC1958c Ann. Cape Obs. London, 20, 155, 1958
WFC1958c Cape Photographic Catalogue for 1950.0. Vol. 20: Zones -56 to -60 deg
WFC1958d Pa - Jackson, J. & Stoy R.H. 1958AnCap..20..155J
WFC1958d Ann. Cape Obs., London, 20, 155, 1958
WFC1958d Cape Photographic Catalogue for 1950.0. Vol. 20: Zones -60 to -64 deg
WFC1959a Pa - Barney, I., Hoffleit, D., & Jones, R.B. 1959TOYal..26....1B
WFC1959a Trans. Astron. Obs. Yale Univ., 26, 1, 1959 (+50 to +55 deg zones)
WFC1959b Pa - Barney, I., Hoffleit, D., & Jones, R.B. 1959TOYal..27....1B
WFC1959b Trans. Astron. Obs. Yale Univ., 27, 1, 1959 (+55 to +60 deg zones)
WFC1966a Pa - Stoy R.H. 1966AnCap..21....0S
WFC1966a Ann. Cape Obs. London, 21, 1966
WFC1966a Cape Photographic Catalogue for 1950.0. Vol. 21: Zones -64 to -68 deg
WFC1966b Pa - Stoy R.H. 1966AnCap..21....0S
WFC1966b Ann. Cape Obs. London, 21, 1966
WFC1966b Cape Photographic Catalogue for 1950.0. Vol. 21: Zones -68 to -72 deg
WFC1966c Pa - Stoy R.H. 1966AnCap..21....0S
WFC1966c Ann. Cape Obs. London, 21, 1966
WFC1966c Cape Photographic Catalogue for 1950.0. Vol. 21: Zones -72 to -76 deg
WFC1966d Pa - Stoy R.H. 1966AnCap..21....0S
WFC1966d Ann. Cape Obs. London, 21, 1966
WFC1966d Cape Photographic Catalogue for 1950.0. Vol. 21: Zones -76 to -80 deg
WFC1967 Pa - Hoffleit, D. 1967TOYal..28....1H
WFC1967 Trans. Astron. Obs. Yale Univ., 28, 1, 1967 (-30 to -35 deg zones)
WFC1968a Pa - Stoy R.H. 1968AnCap..22..125S
WFC1968a Ann. Cape Obs., London, 22, 125, 1968
WFC1968a Cape Photographic Catalogue for 1950.0. Vol. 22: Zones -80 to -89 deg
WFC1968b Pa - Hoffleit, D. 1968TOYal..29....1H
WFC1968b Trans. Astron. Obs. Yale Univ., 29, 1, 1968 (-35 to -40 deg zones)
WFC1970 Pa - Hoffleit, D., Eckert, D., Lu, P., & Paranya, K. 1970TOYal..30....1H
WFC1970 Trans. Astron. Obs. Yale Univ., 30, 1, 1970 (-40 to -50 deg zones)
WFC1971 Pa - Lu, P.K. 1971TOYal..31....1L
WFC1971 Trans. Astron. Obs. Yale Univ., 31, 1, 1971 (-70 to -90 deg zones)
WFC1975 Pa - Dieckvoss, W. .
WFC1975 AGK3 Cat. North of -2.5 deg dec, Vol. 1-8, 1975
WFC1983a Pa - Eichhorn, H., Googe, W.D., Lukac, C.F., & Murphy, J.K. 1983AJ.....88..546E
WFC1983a AJ 88, 546, 1983 (Sydney Obs. -48 to -54 deg zones)
WFC1983b Pa - King, D.S. & Lomb, N.R. 1983RSNSW.116...53K
WFC1983b Journal & Proc., Royal Soc. New South Wales 116, 53-70, 1983
WFC1983b (Sydney Obs. -51 to -63.5 deg zones)
WFC1983c Pa - Fallon, F.W. & Hoffleit, D. 1983TrAOY..32....1F
WFC1983c Trans. Astron. Obs. Yale Univ., 32, 1, 1983 (-60 to -70 deg zones)
WFC1992 Pa - Zacharias, N., de Vegt, C., Nicholson, W., & Penston, M.J. 1992A&A...254..397Z
WFC1992 A&A 254, 397, 1992 (CPC2)
WFC1994 Pa - Bystrov, N.F., Polojentsev, D.D, Potter, H.I., Yagudin, L.I., & Zallez, R.F. 1994BICDS..44....3B
WFC1994 Bull. Inf. CDS 44, 3, 1994 (FOKAT)
WFC1998 Pa j Urban, S.E., Corbin, T.E., Wycoff, G.L., Martin, J.C., Jackson, E.S., 1998AJ....115.1212U
WFC1998 Zacharias, M.I., & Hall, D.M.
WFC1998 AJ 115, 1212, 1998 (Astrographic Cat. 2000)
WFC1999 Pa - Zacharias, N. & Zacharias, M.I. 1999AJ....118.2503Z
WFC1999 AJ 118, 2503, 1999
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20261+5122 WFC 233 2000 6 322 5.1 11.29 12.19 D 202607.66+512206.0
20261+5122 WFC 233 2003 7 322 5.1 11.29 12.19 D 202607.66+512206.0
20261+5122 WFC 233 2010 8 324 5.0 11.29 12.19 202607.66+512206.0
20261+5122 WFC 233 2015 9 322 5.1 11.29 12.19 202607.66+512206.0

If you need more information about this double, apply for a data request form to the WDS.

 
 
WDS 20261+5122 WFC 233 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20261+5122 WFC 233 : MEASURES
 
 
No records found.

 
 
WDS 20261+5122 : VIRTUAL EYEPIECE
 
 

20261+5122 WFC 233A mag 11.29 20261+5122 WFC 233B sep 4.5 P.A. 333.60 mag 12.19 virtual eyepiece
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20261+5122 : ALADIN DSS IMAGE @ 20h 26m 07.66s +51° 22' 06.0"
 
 
 
 
WDS 20261+5122 WFC 233 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20261+5122 WFC 233 distance=0' 20266+5106 HDS2923 distance=17' 20265+5101 KPP4198 distance=22' 20285+5141 KPP2206 distance=30' 20226+5125 KPP1006 distance=34' 20300+5135 RAO 435 distance=39' 20286+5039 HJ 1524 distance=49' 20318+5128 TDT2339 distance=53' 20207+5139 TDT2192 distance=54' 20205+5140 TDT2189 distance=56' 20200+5116 ES 800CD distance=57' 20200+5116 ES 800CE distance=57' 20200+5116 ES 800AB distance=58' 20200+5116 ES 800AC distance=58' 20200+5116 ABH 138AF distance=58' 20200+5116 ABH 138AG distance=58' 20200+5116 ES 800AE distance=58' 20196+5132 TDT2169 distance=62' 20217+5214 ES 988 distance=67' 20323+5048 RAO 615 distance=68' 20205+5039 KPP 470 distance=69' 20203+5205 TDT2185 distance=70' 20336+5131 KPP2429AB distance=70' 20334+5142 TDT2369 distance=72' 20192+5053 HDS2903 distance=72' 20239+5232 A 1428 distance=73' 20311+5022 ES 1101 distance=76' 20304+5014 ES 1100 distance=79' 20183+5152 HDS2900 distance=79' 20176+5113 TDS1056 distance=81' 20223+5237 ES 989 distance=83' 20349+5109 ES 990 distance=84' 20188+5212 ES 2692 distance=85' 20356+5104 TDT2400 distance=91' 20173+5201 ES 660AB distance=92' 20173+5201 ES 660BC distance=92' 20162+5126 SKF 345 distance=93' 20200+5008 KPP4192 distance=95' 20273+4948 BVD 269 distance=96' 20327+5235 TDT2350 distance=96' 20306+4956 TDT2331 distance=96' 20159+5109 HU 585 distance=97' 20320+5001 HEI 909 distance=99' 20337+5232 TDS1082 distance=99' 20167+5208 TDT2136 distance=99' 20162+5209 TDT2131 distance=104' 20367+5053 HEI 879Aa,Ab distance=104' 20367+5053 HLD 39AB distance=104' 20169+5017 BUP 243BG distance=108' 20300+4940 HU 589 distance=109' 20169+5017 BUP 243DF distance=109' grafico limitrofi
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Show name coord_2000 discov# comp pa sep dist(')
Show 20261+5122 WFC 233 322 5.1
Show 20266+5106 HDS2923 196 0.2 17
Show 20265+5101 KPP4198 173 1.6 22
Show 20285+5141 KPP2206 256 18.3 30
Show 20226+5125 KPP1006 30 8.1 34
Show 20300+5135 RAO 435 301 3.1 39
Show 20286+5039 HJ 1524 125 5.3 49
Show 20318+5128 TDT2339 338 1.0 53
Show 20207+5139 TDT2192 254 0.6 54
Show 20205+5140 TDT2189 300 0.9 56
Show 20200+5116 ES 800 CD 133 2.5 57
Show 20200+5116 ES 800 CE 92 73.3 57
Show 20200+5116 ES 800 AB 321 30.2 58
Show 20200+5116 ES 800 AC 101 42.6 58
Show 20200+5116 ABH 138 AF 110 86.0 58
Show 20200+5116 ABH 138 AG 338 76.5 58
Show 20200+5116 ES 800 AE 95 115.6 58
Show 20196+5132 TDT2169 53 0.9 62
Show 20217+5214 ES 988 10 3.7 67
Show 20323+5048 RAO 615 157 0.8 68
Show 20205+5039 KPP 470 129 3.9 69
Show 20203+5205 TDT2185 289 0.9 70
Show 20336+5131 KPP2429 AB 346 20.8 70
Show 20334+5142 TDT2369 61 2.4 72
Show 20192+5053 HDS2903 320 0.1 72
Show 20239+5232 A 1428 205 0.3 73
Show 20311+5022 ES 1101 240 2.2 76
Show 20304+5014 ES 1100 285 2.6 79
Show 20183+5152 HDS2900 106 0.1 79
Show 20176+5113 TDS1056 256 1.4 81
Show 20223+5237 ES 989 271 3.9 83
Show 20349+5109 ES 990 299 2.6 84
Show 20188+5212 ES 2692 85 24.5 85
Show 20356+5104 TDT2400 43 1.2 91
Show 20173+5201 ES 660 AB 303 29.9 92
Show 20173+5201 ES 660 BC 289 9.3 92
Show 20162+5126 SKF 345 25 26.2 93
Show 20200+5008 KPP4192 232 1.5 95
Show 20273+4948 BVD 269 288 11.1 96
Show 20327+5235 TDT2350 329 1.4 96
Show 20306+4956 TDT2331 235 0.9 96
Show 20159+5109 HU 585 48 4.2 97
Show 20320+5001 HEI 909 234 2.7 99
Show 20337+5232 TDS1082 5 1.0 99
Show 20167+5208 TDT2136 286 2.1 99
Show 20162+5209 TDT2131 357 1.9 104
Show 20367+5053 HEI 879 Aa,Ab 137 0.1 104
Show 20367+5053 HLD 39 AB 174 7.5 104
Show 20169+5017 BUP 243 BG 193 10.5 108
Show 20300+4940 HU 589 204 1.6 109
Show 20169+5017 BUP 243 DF 216 105.9 109

 
 
WDS 20261+5122 : COMPONENTS
 
 
  A
B pa=333.6°
sep=4.48"
 
 
20261+5122 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 202607.66+512206.0 Mag 11.29 PmRA -5.00
PmDE -27.0 Tycho2 3584-00036-1
Tycho2
Tycho2 3584-00036-1 Pflag RAmdeg 306.53192026 DEmdeg 51.36832079
PmRA -2.2 PmDE -30.1 E RAmdeg 47 E DEmdeg 48
E pmRA 1.7 E pmDE 1.6 EpRAm 1981.58 EpDEm 1979.80
Num 5 Q RAmdeg 0.3 Q DEmdeg 0.7 Q pmRA 0.3
Q pmDE 0.6 BTmag 11.612 E BTmag 0.074 VTmag 11.289
E VTmag 0.087 Prox 48 TYC T HIP
CCDM RAdeg 306.53192833 DEdeg 51.36838972 EpRA 1990 1.71
EpDE 1990 1.75 E RAdeg 49.6 E DEdeg 51.7 Posflg
Corr 0.0
 
 
20261+5122 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 202607.45+512210.0 Mag 12.19 PmRA -6.00
PmDE -26.0 Tycho2 3584-00036-2 Calc delta mag 0.9 Calc coord yes
Tycho2
Tycho2 3584-00036-2 Pflag RAmdeg 306.53051304 DEmdeg 51.36931902
PmRA -5.2 PmDE -29.5 E RAmdeg 94 E DEmdeg 96
E pmRA 2.5 E pmDE 2.3 EpRAm 1971.51 EpDEm 1965.32
Num 5 Q RAmdeg 1.5 Q DEmdeg 2.0 Q pmRA 1.5
Q pmDE 2.0 BTmag 12.903 E BTmag 0.284 VTmag 12.194
E VTmag 0.209 Prox 48 TYC HIP
CCDM RAdeg 306.53053139 DEdeg 51.36938750 EpRA 1990 1.72
EpDE 1990 1.75 E RAdeg 107.3 E DEdeg 114.1 Posflg
Corr 0.0