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Doubles in session


Current system
04254+2218
STF 541 AB
Kap Tau


Nearby doubles
23' : 04238+2215
LDS5551

30' : 04245+2244
BU 1235

35' : 04236+2154
LDS1168

40' : 04282+2220
HU 439

47' : 04220+2215
OCC 318

49' : 04240+2132
HU 303

50' : 04273+2300
OCC 309

52' : 04263+2128
TOK 16AB

53' : 04242+2129
LDS6129

53' : 04217+2230
LDS5545

55' : 04280+2137
BUP 60

57' : 04225+2137
LDS5548

58' : 04241+2313
LDS1169

59' : 04252+2121
LDS2232

62' : 04238+2120
LDS2230

62' : 04246+2319
POU 450

69' : 04217+2303
LDS5544

70' : 04213+2138
AZC 40

73' : 04225+2318
POU 443

73' : 04254+2331
LDS5555

82' : 04214+2118
LDS2227

82' : 04271+2059
LDS2239

83' : 04219+2325
LDS5546

83' : 04235+2059
CHR 16AB

84' : 04251+2341
POU 451

86' : 04315+2230
COU 266



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.
 
 
WDS 04254+2218 : COMPONENTS
 
 
  A Ab B C D E
Ab pa=0.0°
sep=0.00"
 
B pa=173.3°
sep=340.21"
pa=173.3°
sep=340.21"
 
C pa=175.1°
sep=180.57"
pa=175.1°
sep=180.57"
pa=351.4°
sep=159.82"
 
D pa=175.8°
sep=175.67"
pa=175.8°
sep=175.67"
pa=350.7°
sep=164.87"
pa=331.0°
sep=5.38"
 
E pa=268.4°
sep=135.55"
pa=268.4°
sep=135.55"
pa=332.3°
sep=377.18"
pa=319.4°
sep=231.99"
pa=319.1°
sep=226.72"
 
F pa=182.5°
sep=426.50"
pa=182.5°
sep=426.50"
pa=213.4°
sep=105.69"
pa=187.9°
sep=248.56"
pa=187.2°
sep=252.89"
pa=164.5°
sep=438.14"
 
 
04254+2218 A
 
 
Var name K Tau Coord arcsec 2000 042522.16+221737.9 Mag 4.22 Spectral class A7IV/V (white)
PmRA 105.00 PmDE -45.0 SAO 76601 HIP 20635
Tycho2 1277-01626-1 HD 27934 HR 1387 GC 5350
BD BD+21 642 Bayer Kappa 1 Tauri Bayer name Kap1 Tau Flamsteed 65 Tauri
Flamsteed name 65 Tau
Tycho2
Tycho2 1277-01626-1 Pflag RAmdeg 66.34236228 DEmdeg 22.29387398
PmRA 107.6 PmDE -44.4 E RAmdeg 3 E DEmdeg 4
E pmRA 0.7 E pmDE 0.7 EpRAm 1991.57 EpDEm 1990.93
Num 24 Q RAmdeg 1.3 Q DEmdeg 0.8 Q pmRA 1.1
Q pmDE 0.7 BTmag 4.380 E BTmag 0.014 VTmag 4.215
E VTmag 0.009 Prox 999 TYC T HIP 20635
CCDM RAdeg 66.34209889 DEdeg 22.29397944 EpRA 1990 1.84
EpDE 1990 1.44 E RAdeg 3.4 E DEdeg 3.8 Posflg
Corr -0.3
SAO
SAO 76601 DelFlag RA1950 PmRA1950 0.007
DE1950 PmDE1950 -0.046 Vmag 4.4 SpType A3
Double code Source 70 CatNum 5350 DM BD+21 642
DMcomp BDsup HD 27934 M HD 0
GC 5350 RA1950rad 1.1448693 DE1950rad 0.38713314 PmRA2000 0.0069
PmDE2000 -0.048
Hipparcos
Catalog H HIP 20635 Proxy RAhms 04 25 22.10
DEdms +22 17 38.3 Vmag 4.21 VarFlag R Vmag G
RAdeg 66.3421 DEdeg 22.294 AstroRef Plx 21.27
CCDM 04254+2215 N CCDM I Nsys 2 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 27934 BD BD+21 642
CD CP Dm number +21 642 VIred 0.16
SpType A7IV-V R SpType Coord arcsec 2000 042522.10+221738.3
Hipparcos 2
HIP 20635 Sn 5 So 0 Nc 1
RArad 1.1578876989 DErad 0.389103372 Plx 21.19 PmRA 105.1
PmDE -45.04 E RArad 0.2 E DErad 0.13 E Plx 0.21
E pmRA 0.28 E pmDE 0.19 Hpmag 4.2573 E Hpmag 0.0008
SHp 0.006 VA 0 BV 0.136 E BV 0.004
VI 0.16
 
 
04254+2218 Ab
 
 
Coord arcsec 2000 042522.16+221737.9 Mag 5.2 Spectral class V Calc coord yes
 
 
04254+2218 B
 
 
Coord arcsec 2000 042525.01+221200.0 Coord calc 042525.01+221200.0 Mag 5.29 Spectral class A7V (white)
PmRA 114.00 PmDE -46.0 SAO 76602 HIP 20641
Tycho2 1277-01627-1 HD 27946 HR 1388 GC 5351
BD BD+21 643 Bayer Kappa 2 Tauri Bayer name Kap2 Tau Flamsteed 67 Tauri
Flamsteed name 67 Tau Calc delta mag 0.09
Tycho2
Tycho2 1277-01627-1 Pflag RAmdeg 66.35423433 DEmdeg 22.20000213
PmRA 113.6 PmDE -45.6 E RAmdeg 4 E DEmdeg 4
E pmRA 0.7 E pmDE 0.7 EpRAm 1991.34 EpDEm 1990.94
Num 23 Q RAmdeg 0.8 Q DEmdeg 0.8 Q pmRA 0.9
Q pmDE 0.7 BTmag 5.560 E BTmag 0.014 VTmag 5.294
E VTmag 0.009 Prox 999 TYC T HIP 20641
CCDM RAdeg 66.35395528 DEdeg 22.20011056 EpRA 1990 1.82
EpDE 1990 1.44 E RAdeg 3.5 E DEdeg 4.0 Posflg
Corr -0.2
SAO
SAO 76602 DelFlag RA1950 PmRA1950 0.0079
DE1950 PmDE1950 -0.052 Vmag 5.4 SpType F0
Double code Source 70 CatNum 5351 DM BD+21 643
DMcomp BDsup HD 27946 M HD 0
GC 5351 RA1950rad 1.14508375 DE1950rad 0.38549472 PmRA2000 0.0078
PmDE2000 -0.054
Hipparcos
Catalog H HIP 20641 Proxy RAhms 04 25 24.94
DEdms +22 12 00.4 Vmag 5.27 VarFlag R Vmag H
RAdeg 66.3539 DEdeg 22.2001 AstroRef Plx 22.65
CCDM 04254+2215 N CCDM I Nsys 2 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 27946 BD BD+21 643
CD CP Dm number +21 643 VIred 0.28
SpType A7V R SpType Coord arcsec 2000 042524.94+221200.4
Hipparcos 2
HIP 20641 Sn 5 So 0 Nc 1
RArad 1.1580946544 DErad 0.3874650578 Plx 22.03 PmRA 111.97
PmDE -47.71 E RArad 0.32 E DErad 0.21 E Plx 0.35
E pmRA 0.46 E pmDE 0.34 Hpmag 5.3388 E Hpmag 0.0008
SHp 0.005 VA 0 BV 0.25 E BV 0.01
VI 0.28
 
 
04254+2218 C
 
 
Coord arcsec 2000 042523.28+221438.0 Mag 10.6 PmRA -1.00 PmDE -18.0
Calc delta mag 5.4
 
 
04254+2218 D
 
 
Coord arcsec 2000 042523.09+221442.7 Mag 10 PmRA -4.00 PmDE -8.0
Calc delta mag 4.8 Calc coord yes
 
 
04254+2218 E
 
 
Coord arcsec 2000 042512.40+221734.1 Mag 13.08 PmRA -5.00 PmDE 10.0
Calc delta mag 7.88 Calc coord yes
 
 
04254+2218 F
 
 
Coord arcsec 2000 042520.82+221031.8 Mag 13.7 PmRA 9.00 PmDE 1.0
Calc delta mag 8.5 Calc coord yes