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Doubles in session


Current system
20423+4549
BKO 158 EH


Nearby doubles
17' : 20421+4532
BKO 157

18' : 20420+4532
BRT2271

27' : 20438+4610
TDT2503

29' : 20427+4521
ES 1270

32' : 20440+4521
KPP3361

34' : 20437+4619
HO 140

34' : 20414+4517
H N 73
Deneb

37' : 20394+4530
TDS1087

37' : 20436+4514
CBL 85

39' : 20427+4627
TDS1092

42' : 20464+4551
CVR 230

47' : 20456+4621
HDS2955

49' : 20431+4637
BRT2273

50' : 20434+4501
ES 668AB

52' : 20432+4458
BKO 159

54' : 20433+4456
ES 2699

54' : 20473+4535
HO 280

56' : 20388+4629
BRT2268

62' : 20466+4632
KUI 101

64' : 20437+4651
TDS1096

68' : 20376+4504
HJ 1555

68' : 20485+4519
LDS2456

68' : 20360+4555
STJ 103

69' : 20461+4452
ES 30

70' : 20489+4537
HDS2965

71' : 20489+4607
HJ 1581



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 20423+4549 : COMPONENTS
 
 
  A B C D E F G H
B pa=346.6°
sep=29.40"
 
C pa=358.1°
sep=71.20"
pa=6.0°
sep=42.79"
 
D pa=184.7°
sep=58.18"
pa=178.7°
sep=86.61"
pa=181.1°
sep=129.17"
 
E pa=129.9°
sep=62.82"
pa=141.4°
sep=88.15"
pa=155.6°
sep=122.38"
pa=71.5°
sep=55.87"
 
F pa=152.4°
sep=37.00"
pa=158.7°
sep=65.89"
pa=169.4°
sep=105.75"
pa=41.1°
sep=33.42"
pa=283.6°
sep=31.94"
 
G pa=150.5°
sep=71.30"
pa=155.2°
sep=99.87"
pa=164.3°
sep=138.38"
pa=95.8°
sep=40.11"
pa=211.0°
sep=25.40"
pa=148.5°
sep=34.34"
 
H pa=77.1°
sep=36.68"
pa=115.7°
sep=47.20"
pa=148.8°
sep=73.62"
pa=31.5°
sep=77.60"
pa=345.6°
sep=50.04"
pa=24.4°
sep=44.98"
pa=0.5°
sep=70.23"
 
I pa=157.9°
sep=67.18"
pa=160.6°
sep=96.34"
pa=168.3°
sep=136.24"
pa=98.1°
sep=30.35"
pa=226.3°
sep=31.76"
pa=164.6°
sep=30.56"
pa=268.9°
sep=9.85"
pa=188.5°
sep=71.20"
 
 
20423+4549 A
 
 
Name HD 197488 Coord arcsec 2000 204220.31+454924.5 Mag 7.66 Spectral class G2V (yellow)
PmRA -56.00 PmDE -189.0 SAO 49960 HIP 102189
Tycho2 3574-02567-1 HD 197488 ADS 14190 BD BD+45 3245
Tycho2
Tycho2 3574-02567-1 Pflag RAmdeg 310.58461112 DEmdeg 45.82345838
PmRA -54.4 PmDE -187.8 E RAmdeg 5 E DEmdeg 5
E pmRA 0.9 E pmDE 1.0 EpRAm 1991.32 EpDEm 1991.31
Num 10 Q RAmdeg 0.6 Q DEmdeg 1.0 Q pmRA 0.8
Q pmDE 1.0 BTmag 8.329 E BTmag 0.016 VTmag 7.654
E VTmag 0.011 Prox 603 TYC T HIP 102189
CCDM RAdeg 310.58478972 DEdeg 45.82389250 EpRA 1990 1.76
EpDE 1990 1.68 E RAdeg 4.7 E DEdeg 4.9 Posflg
Corr 0.1
SAO
SAO 49960 DelFlag RA1950 PmRA1950 -0.0068
DE1950 PmDE1950 -0.193 Vmag 7.9 SpType G0
Double code Source 3 CatNum 1733 DM BD+45 3245
DMcomp BDsup HD 197488 M HD 0
GC RA1950rad 5.4133556 DE1950rad 0.79666845 PmRA2000 -0.0064
PmDE2000 -0.196
Hipparcos
Catalog H HIP 102189 Proxy RAhms 20 42 20.35
DEdms +45 49 26.1 Vmag 7.59 VarFlag R Vmag H
RAdeg 310.585 DEdeg 45.8239 AstroRef Plx 17.96
CCDM 20423+4549 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 197488 BD BD+45 3245
CD CP Dm number +45 3245 VIred 0.64
SpType G2V R SpType Coord arcsec 2000 204220.35+454926.1
Hipparcos 2
HIP 102189 Sn 5 So 0 Nc 1
RArad 5.420727435 DErad 0.799778213 Plx 18.47 PmRA -55.62
PmDE -188.87 E RArad 0.46 E DErad 0.36 E Plx 0.47
E pmRA 0.58 E pmDE 0.41 Hpmag 7.7248 E Hpmag 0.0013
SHp 0.012 VA 0 BV 0.613 E BV 0.01
VI 0.68
CCDM
Ccdm 20423+4549 RComp Comp A Note1
Note2 Discov num DRAs 2.29 DDEs 24.0
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.7 Sp G0 PmNote *
PmRA -61 PmDE -194 Dm number +45 3245 Cat1 BD
Name2 +45 1733 Cat2 AGK2/3 HD 197488 M HD
ADS BDS A14190 M ADS BDS N IDS IDS 20390N4528A
HIC 102189
 
 
20423+4549 B
 
 
Coord arcsec 2000 204219.66+454953.1 Coord calc 204219.66+454953.1 Mag 10.58 PmRA -1.00
PmDE -9.0 Calc delta mag 2.92
CCDM
Ccdm 20423+4549 RComp Comp B Note1
Note2 Discov num STT 411 DRAs 1.61 DDEs 52.8
R dRAs 90 Year 1940 Theta 331 Rho 21.0
Obs 10 Vmag 10.5 Sp PmNote *
PmRA -8 PmDE -12 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14190 M ADS BDS N IDS IDS 20390N4528B
HIC
 
 
20423+4549 C
 
 
Coord arcsec 2000 204220.09+455035.7 Mag 10.23 PmRA -4.00 PmDE 1.0
Tycho2 3574-02074-1 Calc delta mag 2.57 Calc coord yes
Tycho2
Tycho2 3574-02074-1 Pflag RAmdeg 310.58297025 DEmdeg 45.84243879
PmRA 3.1 PmDE 3.2 E RAmdeg 21 E DEmdeg 25
E pmRA 1.2 E pmDE 1.2 EpRAm 1987.14 EpDEm 1984.73
Num 5 Q RAmdeg 1.3 Q DEmdeg 0.6 Q pmRA 1.3
Q pmDE 0.7 BTmag 10.791 E BTmag 0.045 VTmag 10.372
E VTmag 0.043 Prox 668 TYC T HIP
CCDM RAdeg 310.58296778 DEdeg 45.84243389 EpRA 1990 1.82
EpDE 1990 1.62 E RAdeg 24.6 E DEdeg 31.6 Posflg
Corr 0.0
 
 
20423+4549 D
 
 
Coord arcsec 2000 204219.85+454826.5 Mag 10.6 PmRA 4.00 PmDE 7.0
Tycho2 3574-02542-1 Calc delta mag 2.94 Calc coord yes
Tycho2
Tycho2 3574-02542-1 Pflag RAmdeg 310.58303644 DEmdeg 45.80724379
PmRA 5.0 PmDE 8.4 E RAmdeg 21 E DEmdeg 25
E pmRA 1.2 E pmDE 1.2 EpRAm 1987.40 EpDEm 1985.01
Num 5 Q RAmdeg 2.2 Q DEmdeg 1.0 Q pmRA 2.2
Q pmDE 1.0 BTmag 10.886 E BTmag 0.046 VTmag 10.408
E VTmag 0.043 Prox 553 TYC T HIP
CCDM RAdeg 310.58303250 DEdeg 45.80721944 EpRA 1990 1.81
EpDE 1990 1.63 E RAdeg 23.9 E DEdeg 31.3 Posflg
Corr 0.1
 
 
20423+4549 E
 
 
Coord arcsec 2000 204224.92+454844.2 Coord calc 204224.92+454844.2 Mag 10.55 PmRA -1.00
PmDE -2.0 Tycho2 3574-03272-1 Calc delta mag 2.89
Tycho2
Tycho2 3574-03272-1 Pflag RAmdeg 310.60384738 DEmdeg 45.81227488
PmRA 0.5 PmDE -3.1 E RAmdeg 28 E DEmdeg 30
E pmRA 1.7 E pmDE 1.6 EpRAm 1986.57 EpDEm 1985.90
Num 4 Q RAmdeg 0.7 Q DEmdeg 1.6 Q pmRA 0.7
Q pmDE 1.6 BTmag 11.854 E BTmag 0.099 VTmag 10.312
E VTmag 0.042 Prox 553 TYC T HIP
CCDM RAdeg 310.60384528 DEdeg 45.81229500 EpRA 1990 1.76
EpDE 1990 1.70 E RAdeg 35.7 E DEdeg 38.3 Posflg
Corr -0.1
 
 
20423+4549 F
 
 
Coord arcsec 2000 204221.95+454851.7 Mag 12.2 PmRA -9.00 PmDE 2.0
Calc delta mag 4.54 Calc coord yes
 
 
20423+4549 G
 
 
Coord arcsec 2000 204223.67+454822.4 Mag 14 PmRA 13.00 PmDE 4.0
Calc delta mag 6.34 Calc coord yes
 
 
20423+4549 H
 
 
Coord arcsec 2000 204223.73+454932.7 Mag 12.6 PmRA -6.00 PmDE -1.0
Calc delta mag 4.94 Calc coord yes
 
 
20423+4549 I
 
 
Coord arcsec 2000 204222.73+454822.2 Mag 13.6 Calc delta mag 5.94 Calc coord yes