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Current system
18549+6911
WFC 215


Nearby doubles
33' : 18497+6930
MLR 96

35' : 18484+6908
WFC 254

38' : 18488+6853
LDS2421

42' : 18562+6952
TDS 954

43' : 19024+6927
STF2478

46' : 18463+6909
SKF2739

55' : 18457+6849
TDT1039

67' : 18473+7004
KPP1662

70' : 19050+6928
LDS1899

73' : 18440+6830
CTI 134

73' : 19083+6928
DAM 136

74' : 18551+6757
LDS2424

85' : 18535+7036
A 1172

85' : 18393+6931
TOI1859

87' : 18414+7001
GNO 2

92' : 18383+6937
CTI 848

93' : 18393+6955
WFC 211

94' : 19123+6928
TDT1292

95' : 19112+6952
MLR 92

98' : 18411+6810
MLB 355AB

98' : 18402+6815
KPP 813

101' : 19014+6737
UC 3764

104' : 19079+6756
MLB1082

105' : 19126+6829
LDS2431

115' : 19147+6830
TDT1314

117' : 18581+6716
MLB 414



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.

18549+6911 WFC 215

 
 
18h 54m 55.23s +69° 11' 11.7" P.A. 254.00 sep 3.8 mag 10.10,10.22
 
 
Coord 2000 18549+6911 Discov num WFC 215 Comp Coord arcsec 2000 18 54 55.23 +69 11 11.7
Date first 1893 Date last 2016 Obs 10
Pa first 249 Pa last 254 P.A. Now (θ) 254°
Sep first 3.6 Sep last 3.806 Sep. Now (ρ) 3.806"
Mag pri 10.10 Mag sec 10.22 delta mag (ΔM) 0.12 Spectral class
Pri motion ra +004 Sec motion ra +003
Pri motion dec +009 Sec motion dec +011
Notes T (Parallax indicates physical)
rPM=0.196 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Draco Tycho2 4431-01328-1 Gaia DR2 2262289502508290560
 
 
WDS 18549+6911 WFC 215 : 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
18549+6911 WFC 215 2006 6 254 3.9 10.10 10.22 D 185455.23+691111.7
18549+6911 WFC 215 2015 8 254 3.8 10.10 10.22 185455.23+691111.7
18549+6911 WFC 215 2016 10 254 3.8 10.10 10.22 T 185455.23+691111.7

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

 
 
WDS 18549+6911 WFC 215 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18549+6911 WFC 215 : MEASURES
 
 
No records found.

 
 
WDS 18549+6911 : VIRTUAL EYEPIECE
 
 

18549+6911 WFC 215A mag 10.1 18549+6911 WFC 215B sep 1.7 P.A. 231.10 mag 10.22 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 18549+6911 : ALADIN DSS IMAGE @ 18h 54m 55.23s +69° 11' 11.7"
 
 
 
 
WDS 18549+6911 WFC 215 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18549+6911 WFC 215 distance=0' 18497+6930 MLR 96 distance=33' 18484+6908 WFC 254 distance=35' 18488+6853 LDS2421 distance=38' 18562+6952 TDS 954 distance=42' 19024+6927 STF2478 distance=43' 18463+6909 SKF2739 distance=46' 18457+6849 TDT1039 distance=55' 18473+7004 KPP1662 distance=67' 19050+6928 LDS1899 distance=70' 18440+6830 CTI 134 distance=73' 19083+6928 DAM 136 distance=73' 18551+6757 LDS2424 distance=74' 18535+7036 A 1172 distance=85' 18393+6931 TOI1859 distance=85' 18414+7001 GNO 2 distance=87' 18383+6937 CTI 848 distance=92' 18393+6955 WFC 211 distance=93' 19123+6928 TDT1292 distance=94' 19112+6952 MLR 92 distance=95' 18411+6810 MLB 355AB distance=98' 18411+6810 MLB 355AC distance=98' 18402+6815 KPP 813 distance=98' 19014+6737 UC 3764 distance=101' 19079+6756 MLB1082 distance=104' 19126+6829 LDS2431 distance=105' 19147+6830 TDT1314 distance=115' 18581+6716 MLB 414 distance=117' 19106+6749 LDS2430AB distance=119' 19106+6749 DAM1456AC distance=119' 18543+6706 MLB 287 distance=126' 18543+6705 MLB1080 distance=127' 18484+7115 TDT1061 distance=129' 19143+6754 STF2508 distance=132' 19067+6716 LDS2760 distance=133' 19126+6740 BUP 186AB (Altais) distance=134' 19126+6740 BUP 186AC (Altais) distance=134' 19022+6702 LDS2427 distance=135' 19146+6733 MLB 356 distance=147' 18441+7129 LDS1891 distance=149' 19078+6658 UC 3809 distance=152' 18446+6649 MLB 286 distance=153' 18384+6708 STF2384AB distance=155' 18384+6708 STF2384AB,C distance=155' 19106+6700 MLB 288 distance=158' 19070+7143 TDT1228 distance=164' 18592+6629 TDT1166 distance=164' 19141+6707 HDS2722 distance=164' 19107+6646 TDS 975 distance=170' 18364+6655 TOK 323 distance=172' 19082+7149 CRB 206 distance=172' 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 18549+6911 WFC 215 254 3.8
Show 18497+6930 MLR 96 267 1.7 33
Show 18484+6908 WFC 254 218 13.3 35
Show 18488+6853 LDS2421 274 34.6 38
Show 18562+6952 TDS 954 309 0.9 42
Show 19024+6927 STF2478 316 1.0 43
Show 18463+6909 SKF2739 227 6.8 46
Show 18457+6849 TDT1039 329 0.4 55
Show 18473+7004 KPP1662 151 12.8 67
Show 19050+6928 LDS1899 250 3.2 70
Show 18440+6830 CTI 134 326 6.8 73
Show 19083+6928 DAM 136 112 9.2 73
Show 18551+6757 LDS2424 354 13.3 74
Show 18535+7036 A 1172 261 6.8 85
Show 18393+6931 TOI1859 184 10.6 85
Show 18414+7001 GNO 2 82 0.1 87
Show 18383+6937 CTI 848 280 1.0 92
Show 18393+6955 WFC 211 68 9.5 93
Show 19123+6928 TDT1292 59 2.4 94
Show 19112+6952 MLR 92 30 0.4 95
Show 18411+6810 MLB 355 AB 197 8.5 98
Show 18411+6810 MLB 355 AC 270 23.4 98
Show 18402+6815 KPP 813 166 7.0 98
Show 19014+6737 UC 3764 311 35.3 101
Show 19079+6756 MLB1082 39 12.9 104
Show 19126+6829 LDS2431 148 9.4 105
Show 19147+6830 TDT1314 50 0.5 115
Show 18581+6716 MLB 414 140 2.0 117
Show 19106+6749 LDS2430 AB 38 18.6 119
Show 19106+6749 DAM1456 AC 19 8.8 119
Show 18543+6706 MLB 287 314 7.4 126
Show 18543+6705 MLB1080 6 10.0 127
Show 18484+7115 TDT1061 216 0.6 129
Show 19143+6754 STF2508 116 17.7 132
Show 19067+6716 LDS2760 220 23.5 133
Show Altais 19126+6740 BUP 186 AB 341 80.4 134
Show Altais 19126+6740 BUP 186 AC 21 131.2 134
Show 19022+6702 LDS2427 88 3.0 135
Show 19146+6733 MLB 356 20 4.1 147
Show 18441+7129 LDS1891 98 3.2 149
Show 19078+6658 UC 3809 108 62.4 152
Show 18446+6649 MLB 286 290 3.8 153
Show 18384+6708 STF2384 AB 307 0.4 155
Show 18384+6708 STF2384 AB,C 162 136.5 155
Show 19106+6700 MLB 288 288 3.9 158
Show 19070+7143 TDT1228 225 0.9 164
Show 18592+6629 TDT1166 195 0.9 164
Show 19141+6707 HDS2722 25 0.1 164
Show 19107+6646 TDS 975 275 1.0 170
Show 18364+6655 TOK 323 116 181.1 172
Show 19082+7149 CRB 206 51 12.6 172

 
 
WDS 18549+6911 : COMPONENTS
 
 
  A
B pa=231.1°
sep=1.67"
 
 
18549+6911 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 185455.23+691111.7 Mag 10.1 PmRA 4.00
PmDE 9.0 Tycho2 4431-01328-1
Tycho2
Tycho2 4431-01328-1 Pflag RAmdeg 283.73013472 DEmdeg 69.18657335
PmRA 5.1 PmDE 13.6 E RAmdeg 21 E DEmdeg 20
E pmRA 1.7 E pmDE 1.8 EpRAm 1990.07 EpDEm 1990.30
Num 3 Q RAmdeg 2.6 Q DEmdeg 0.5 Q pmRA 2.7
Q pmDE 0.5 BTmag 10.563 E BTmag 0.035 VTmag 10.099
E VTmag 0.032 Prox 38 TYC T HIP
CCDM RAdeg 283.73010083 DEdeg 69.18654167 EpRA 1990 1.58
EpDE 1990 1.61 E RAdeg 20.7 E DEdeg 20.4 Posflg
Corr 0.0
 
 
18549+6911 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 185454.99+691110.7 Mag 10.22 PmRA 3.00
PmDE 11.0 Tycho2 4431-01328-2 Calc delta mag 0.12 Calc coord yes
Tycho2
Tycho2 4431-01328-2 Pflag RAmdeg 283.72728852 DEmdeg 69.18628141
PmRA 4.3 PmDE 15.4 E RAmdeg 25 E DEmdeg 24
E pmRA 1.7 E pmDE 1.8 EpRAm 1989.44 EpDEm 1989.78
Num 3 Q RAmdeg 1.5 Q DEmdeg 1.4 Q pmRA 1.5
Q pmDE 1.4 BTmag 10.735 E BTmag 0.041 VTmag 10.220
E VTmag 0.037 Prox 38 TYC T HIP
CCDM RAdeg 283.72726028 DEdeg 69.18624583 EpRA 1990 1.57
EpDE 1990 1.65 E RAdeg 24.8 E DEdeg 24.1 Posflg
Corr 0.1