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Current system
17053+5428
BU 1088 BC


Nearby doubles
10' : 17054+5438
TDT 206

43' : 17102+5430
STF2138AB

51' : 17103+5403
SCA9002AB

56' : 16594+5407
LDS4716

57' : 17118+5432
DEA 87

59' : 16589+5444
HDS2402

71' : 17131+5408
STF2146AB

76' : 17039+5314
STTA151AB

87' : 16554+5424
LDS4707

90' : 17071+5556
CRB 199

92' : 16549+5420
SKF 52

97' : 17165+5433
SCA9003AB

99' : 17047+5250
TDT 202

117' : 16565+5558
LDS4710

122' : 17170+5337
GRV1133

124' : 17185+5346
ES 776AB

125' : 17183+5338
SWI 3

125' : 17141+5608
STT 327

127' : 17138+5246
TDT 272

130' : 16513+5347
SWI 2

131' : 16554+5252
BEM9022AB

133' : 16538+5556
UC 3250

141' : 17111+5640
MET 80

141' : 17141+5627
TDT 276

145' : 17170+5612
SLE 81

150' : 16486+5508
STF2108



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Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.
 
 
WDS 17053+5428 : COMPONENTS
 
 
  A B
B pa=119.8°
sep=0.40"
 
C pa=176.6°
sep=12.14"
pa=178.2°
sep=11.93"
 
 
17053+5428 A
 
 
Common name Alrakis Meaning dancer Other names Arrakis, Errakis Coord arcsec 2000 170520.20+542814.3
Mag 5.66 Spectral class F7V (yellow-white) PmRA -68.00 PmDE 89.0
SAO 30239 HIP 83608 Tycho2 3890-01396-2 HD 154906
HR 6370 GC 23092 BD BD+54 1857 Bayer Mu Draconis
Bayer name Mu Dra Flamsteed 21 Draconis Flamsteed name 21 Dra
Tycho2
Tycho2 3890-01396-2 Pflag P RAmdeg 256.33405978 DEmdeg 54.47032257
PmRA -68.4 PmDE 88.7 E RAmdeg 4 E DEmdeg 4
E pmRA 3.4 E pmDE 3.3 EpRAm 1991.62 EpDEm 1991.52
Num 3 Q RAmdeg 5.2 Q DEmdeg 0.2 Q pmRA 5.2
Q pmDE 0.3 BTmag 6.171 E BTmag 0.015 VTmag 5.656
E VTmag 0.009 Prox 22 TYC T HIP 83608
CCDM A RAdeg 256.33408417 DEdeg 54.46986639 EpRA 1990 1.62
EpDE 1990 1.52 E RAdeg 3.7 E DEdeg 3.8 Posflg D
Corr -0.1
SAO
SAO 30239 DelFlag RA1950 PmRA1950 -0.0091
DE1950 PmDE1950 0.084 Vmag 5.1 SpType F5
Double code Source 70 CatNum 23092 DM BD+54 1857
DMcomp BDsup HD 154905 M HD 9
GC 23092 RA1950rad 4.46930511 DE1950rad 0.95182475 PmRA2000 -0.0084
PmDE2000 0.085
Hipparcos
Catalog H HIP 83608 Proxy H RAhms 17 05 20.18
DEdms +54 28 11.5 Vmag 4.91 VarFlag R Vmag H
RAdeg 256.334 DEdeg 54.4699 AstroRef A Plx 37.08
CCDM 17053+5428 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 30 Rho 2.16 HD 154905 BD BD+54 1857
CD CP Dm number +54 1857 VIred 0.54
SpType F5 R SpType Coord arcsec 2000 170520.18+542811.5
Hipparcos 2
HIP 83608 Sn 15 So 3 Nc 2
RArad 4.4738739148 DErad 0.9506784466 Plx 36.45 PmRA -58.16
PmDE 67.87 E RArad 0.45 E DErad 0.42 E Plx 0.46
E pmRA 0.56 E pmDE 0.64 Hpmag 5.017 E Hpmag 0.0006
SHp 0.005 VA 0 BV 0.471 E BV 0.001
VI 0.54
CCDM
Ccdm 17053+5428 RComp Comp A Note1
Note2 Discov num DRAs 2.15 DDEs 12.3
R dRAs 10 Year Theta Rho
Obs 3 Vmag 5.8 Sp F5 PmNote *
PmRA -89 PmDE 63 Dm number +54 1857 Cat1 BD
Name2 +54 1079 Cat2 AGK2/3 HD 154906 M HD
ADS BDS A10345 M ADS BDS N IDS IDS 17033N5436A
HIC 83608
 
 
17053+5428 B
 
 
Coord arcsec 2000 170520.24+542814.1 Coord calc 170520.24+542814.1 Mag 5.69 Spectral class F7V (yellow-white)
PmRA -68.00 PmDE 89.0 Tycho2 3890-01396-1 HD 154905
HR 6369 Flamsteed 21 Draconis Flamsteed name 21 Dra Calc delta mag 0.03
Tycho2
Tycho2 3890-01396-1 Pflag P RAmdeg 256.33405978 DEmdeg 54.47032257
PmRA -68.4 PmDE 88.7 E RAmdeg 4 E DEmdeg 4
E pmRA 3.4 E pmDE 3.3 EpRAm 1991.62 EpDEm 1991.52
Num 3 Q RAmdeg 5.2 Q DEmdeg 0.2 Q pmRA 5.2
Q pmDE 0.3 BTmag 6.224 E BTmag 0.014 VTmag 5.693
E VTmag 0.009 Prox 22 TYC T HIP 83608
CCDM B RAdeg 256.33460611 DEdeg 54.47038444 EpRA 1990 1.64
EpDE 1990 1.54 E RAdeg 3.8 E DEdeg 3.8 Posflg D
Corr -0.1
CCDM
Ccdm 17053+5428 RComp Comp B Note1 *
Note2 @ Discov num STF2130 DRAs DDEs
R dRAs Year 1828 Theta Rho
Obs 99 Vmag 5.8 Sp F5 PmNote
PmRA -72 PmDE 77 Dm number Cat1
Name2 Cat2 HD 154905 M HD
ADS BDS A10345 M ADS BDS N IDS IDS 17033N5436B
HIC 83608
 
 
17053+5428 C
 
 
Coord arcsec 2000 170520.28+542802.2 Mag 13.7 PmRA -75.00 PmDE 89.0
Calc delta mag 8.04 Calc coord yes
CCDM
Ccdm 17053+5428 RComp Comp C Note1
Note2 Discov num BU 1088 DRAs DDEs
R dRAs Year 1958 Theta 175 Rho 13.2
Obs 3 Vmag 13.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A10345 M ADS BDS N N IDS IDS 17033N5436C
HIC