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Doubles in session


Current system
20507+8552
STF 2794
HD 201748


Nearby doubles
15' : 20376+8551
LOC 458

47' : 20487+8506
LOC 471AB

119' : 21105+8356
LOC 481

125' : 20319+8350
LOC 456

180' : 20345+8254
MLR 235

182' : 20421+8251
LOC 469

206' : 20406+8227
TDT2464

214' : 20573+8219
LOC 470

223' : 20546+8210
LOC 468

227' : 20449+8206
LOC 467

234' : 20520+8158
TDT2588

260' : 21060+8134
LOC 480

273' : 21060+8121
PKO 31

275' : 20465+8118
KPP4213

276' : 20472+8117
TDT2537

288' : 20454+8105
LDS1938



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 20507+8552 : COMPONENTS
 
 
  A
B pa=91.4°
sep=1.28"
 
 
20507+8552 A
 
 
Componente originario normalizzato AB Name HD 201748 Coord arcsec 2000 205042.69+855204.6 Mag 8.54
Spectral class F0 (yellow-white) PmRA 13.00 PmDE 16.0 SAO 3488
HIP 102893 Tycho2 4653-00560-1 HD 201748 GC 29348
BD BD+85 359
Tycho2
Tycho2 4653-00560-1 Pflag RAmdeg 312.67788437 DEmdeg 85.86795600
PmRA 12.7 PmDE 15.9 E RAmdeg 6 E DEmdeg 6
E pmRA 0.9 E pmDE 1.0 EpRAm 1990.88 EpDEm 1991.10
Num 15 Q RAmdeg 1.5 Q DEmdeg 0.8 Q pmRA 1.6
Q pmDE 0.8 BTmag 8.800 E BTmag 0.017 VTmag 8.541
E VTmag 0.012 Prox 179 TYC T HIP 102893
CCDM A RAdeg 312.67747750 DEdeg 85.86791944 EpRA 1990 1.67
EpDE 1990 1.71 E RAdeg 5.8 E DEdeg 6.2 Posflg
Corr 0.0
SAO
SAO 3488 DelFlag RA1950 PmRA1950 0.0167
DE1950 PmDE1950 0.014 Vmag 8.2 SpType F0
Double code Source 70 CatNum 29348 DM BD+85 359
DMcomp BDsup HD 201748 M HD 0
GC 29348 RA1950rad 5.49355084 DE1950rad 1.49531621 PmRA2000 0.0172
PmDE2000 0.011
Hipparcos
Catalog H HIP 102893 Proxy RAhms 20 50 42.58
DEdms +85 52 04.5 Vmag 8.52 VarFlag R Vmag G
RAdeg 312.677 DEdeg 85.8679 AstroRef A Plx 5.62
CCDM 20508+8552 N CCDM I Nsys 2 Ncomp 1
MultFlag C Source P Qual A M HIP
Theta Rho HD 201748 BD BD+85 359
CD CP Dm number +85 359 VIred 0.24
SpType F0 R SpType Coord arcsec 2000 205042.58+855204.5
Hipparcos 2
HIP 102893 Sn 95 So 3 Nc 1
RArad 5.4572505999 DErad 1.4986778494 Plx 4.15 PmRA 12.63
PmDE 14.71 E RArad 0.81 E DErad 0.72 E Plx 0.85
E pmRA 1.07 E pmDE 0.9 Hpmag 8.5948 E Hpmag 0.0095
SHp 0.034 VA 0 BV 0.218 E BV 0.015
VI 0.24
 
 
20507+8552 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 205043.87+855204.6 Mag 10.88 PmRA 9.00
PmDE 5.0 Calc delta mag 2.34 Calc coord yes