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Doubles in session


Current system
18503-4509
HDS 2671
HD 173946


Nearby doubles
39' : 18478-4441
UC 3674

42' : 18541-4519
UC 3715

45' : 18545-4514
DON 932

46' : 18462-4520
DON 921

47' : 18499-4422
DON 925

49' : 18476-4430
KPP 425

53' : 18490-4559
CPO 599

53' : 18532-4552
RST1007

74' : 18555-4420
UC 3726

82' : 18579-4458
DON 936AB

85' : 18583-4514
DEA 18

90' : 18583-4438
NZO 96

93' : 18516-4337
UC 3698

93' : 18417-4520
TDT1003

93' : 18437-4611
B 1369

94' : 18508-4335
DON 926

94' : 18417-4448
TDT1002

95' : 18565-4401
DON 935

97' : 18428-4416
LDS 649

98' : 18547-4343
RSS 494

100' : 18583-4418
B 2872

100' : 18583-4417
CPO 604

100' : 18449-4630
SKF1150

100' : 18424-4603
RST 998

100' : 18487-4647
CPO 84AB

102' : 18414-4433
CBL 172



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.

18503-4509 HDS 2671 (HD 173946)

 
 
18h 50m 19.64s -45° 08' 35.0" P.A. 299.00 sep 14.5 mag 9.95,11.75 Sp F0V dist. 3333.33 pc (10873.32 l.y.)
 
 
Coord 2000 18503-4509 Discov num HDS2671 Comp Coord arcsec 2000 18 50 19.64 -45 08 35.0
Date first 1900 Date last 2015 Obs 9
Pa first 298 Pa last 298.5 P.A. Now (θ) 298.5°
Sep first 14.6 Sep last 14.546 Sep. Now (ρ) 14.546"
Mag pri 9.95 Mag sec 11.75 delta mag (ΔM) 1.8 Spectral class F0V (yellow-white)
Pri motion ra +000 Sec motion ra -004
Pri motion dec -018 Sec motion dec -009
Notes
rPM=0.547
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 173946 Constellation Corona Austrina HIP 92441 Tycho2 8373-01252-1
Gaia DR2 6711803431352651520 HD 173946 CD CD-4512791 CP CP-45 9487
Distance 3333.33 Distance ly 10873.32
 
 
WDS 18503-4509 HDS 2671 (HD 173946) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
HDS Hipparcos Double Star (from additional DD list) ...................
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18503-4509 HDS2671 2000 5 298 14.5 9.95 11.75 F0V D 185019.64-450835.0
18503-4509 HDS2671 2010 8 298 14.4 9.95 11.75 F0V 185019.64-450835.0
18503-4509 HDS2671 2015 9 299 14.5 9.95 11.75 F0V 185019.64-450835.0

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

 
 
WDS 18503-4509 HDS 2671 (HD 173946) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18503-4509 HDS 2671 (HD 173946) : MEASURES
 
 
No records found.

 
 
WDS 18503-4509 (HD 173946) : VIRTUAL EYEPIECE
 
 

18503-4509 HDS2671A mag 9.95 Sp F0V 18503-4509 HDS2671B sep 11.4 P.A. 307.60 mag 11.75 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 18503-4509 (HD 173946) : ALADIN DSS IMAGE @ 18h 50m 19.64s -45° 08' 35.0"
 
 
 
 
WDS 18503-4509 HDS 2671 (HD 173946) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18503-4509 HDS2671 distance=0' 18478-4441 UC 3674 distance=39' 18541-4519 UC 3715 distance=42' 18545-4514 DON 932 distance=45' 18462-4520 DON 921 distance=46' 18499-4422 DON 925 distance=47' 18476-4430 KPP 425 distance=49' 18490-4559 CPO 599 distance=53' 18532-4552 RST1007 distance=53' 18555-4420 UC 3726 distance=74' 18579-4458 DON 936AB distance=82' 18583-4514 DEA 18 distance=85' 18583-4438 NZO 96 distance=90' 18516-4337 UC 3698 distance=93' 18417-4520 TDT1003 distance=93' 18437-4611 B 1369 distance=93' 18508-4335 DON 926 distance=94' 18417-4448 TDT1002 distance=94' 18565-4401 DON 935 distance=95' 18428-4416 LDS 649 distance=97' 18547-4343 RSS 494 distance=98' 18583-4418 B 2872 distance=100' 18583-4417 CPO 604 distance=100' 18449-4630 SKF1150 distance=100' 18424-4603 RST 998 distance=100' 18487-4647 CPO 84AB distance=100' 18414-4433 CBL 172 distance=102' 18481-4330 KPP4341BC distance=102' 18481-4330 KPP4341AB distance=102' 18481-4330 KPP4341AC distance=102' 18497-4652 CPO9276 distance=104' 19010-4455 CPO 605 distance=114' 18396-4520 UC 3632 distance=114' 19004-4550 FIN 12 distance=115' 18468-4318 BRT1077 distance=118' 18472-4315 BRT1078 distance=119' 18395-4545 HU 1527 distance=120' 19015-4538 BRT1086 distance=122' 18506-4304 BRT1080 distance=125' 18444-4657 HU 1528 distance=126' 18541-4310 BRT1081 distance=126' 18517-4714 HDS2675 distance=126' 18508-4301 UC 3694 distance=128' 18479-4717 BRT1079 distance=131' 18452-4709 TDT1035 distance=132' 18596-4639 RST1014 distance=133' 18540-4716 I 112AB distance=134' 18540-4716 DUN 224AC distance=134' 18566-4705 WSI 134 distance=134' 18387-4419 BRT1072 distance=135' 18437-4705 RST 999 distance=136' 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 18503-4509 HDS2671 299 14.5
Show 18478-4441 UC 3674 63 13.4 39
Show 18541-4519 UC 3715 35 21.0 42
Show 18545-4514 DON 932 338 2.3 45
Show 18462-4520 DON 921 129 1.1 46
Show 18499-4422 DON 925 170 2.7 47
Show 18476-4430 KPP 425 329 4.9 49
Show 18490-4559 CPO 599 68 5.4 53
Show 18532-4552 RST1007 35 2.9 53
Show 18555-4420 UC 3726 79 19.9 74
Show 18579-4458 DON 936 AB 44 1.3 82
Show 18583-4514 DEA 18 52 63.2 85
Show 18583-4438 NZO 96 115 5.5 90
Show 18516-4337 UC 3698 114 50.9 93
Show 18417-4520 TDT1003 112 7.8 93
Show 18437-4611 B 1369 71 4.2 93
Show 18508-4335 DON 926 274 0.9 94
Show 18417-4448 TDT1002 103 0.9 94
Show 18565-4401 DON 935 26 1.3 95
Show 18428-4416 LDS 649 240 130.4 97
Show 18547-4343 RSS 494 350 23.0 98
Show 18583-4418 B 2872 301 3.8 100
Show 18583-4417 CPO 604 305 4.7 100
Show 18449-4630 SKF1150 83 28.0 100
Show 18424-4603 RST 998 332 1.1 100
Show 18487-4647 CPO 84 AB 27 2.3 100
Show 18414-4433 CBL 172 53 36.3 102
Show 18481-4330 KPP4341 BC 302 7.1 102
Show 18481-4330 KPP4341 AB 144 2.1 102
Show 18481-4330 KPP4341 AC 297 6.0 102
Show 18497-4652 CPO9276 150 5.2 104
Show 19010-4455 CPO 605 349 3.1 114
Show 18396-4520 UC 3632 138 46.6 114
Show 19004-4550 FIN 12 37 0.5 115
Show 18468-4318 BRT1077 331 4.1 118
Show 18472-4315 BRT1078 302 3.2 119
Show 18395-4545 HU 1527 313 5.0 120
Show 19015-4538 BRT1086 16 6.1 122
Show 18506-4304 BRT1080 308 5.5 125
Show 18444-4657 HU 1528 243 3.4 126
Show 18541-4310 BRT1081 246 3.8 126
Show 18517-4714 HDS2675 38 12.8 126
Show 18508-4301 UC 3694 319 27.5 128
Show 18479-4717 BRT1079 154 5.3 131
Show 18452-4709 TDT1035 209 0.4 132
Show 18596-4639 RST1014 141 0.8 133
Show 18540-4716 I 112 AB 193 2.1 134
Show 18540-4716 DUN 224 AC 62 87.2 134
Show 18566-4705 WSI 134 135 1.3 134
Show 18387-4419 BRT1072 80 5.3 135
Show 18437-4705 RST 999 257 3.6 136

 
 
WDS 18503-4509 : COMPONENTS
 
 
  A
B pa=307.6°
sep=11.38"
 
 
18503-4509 A
 
 
Componente originario normalizzato AB Name HD 173946 Coord arcsec 2000 185019.64-450835.0 Mag 9.95
Spectral class F0V (yellow-white) PmRA 0.00 PmDE -18.0 HIP 92441
Tycho2 8373-01252-1 HD 173946 CD CD-4512791 CP CP-45 9487
Tycho2
Tycho2 8373-01252-1 Pflag RAmdeg 282.58184532 DEmdeg -45.14305060
PmRA 3.0 PmDE -18.8 E RAmdeg 21 E DEmdeg 23
E pmRA 1.9 E pmDE 1.8 EpRAm 1990.08 EpDEm 1989.70
Num 4 Q RAmdeg 0.6 Q DEmdeg 1.7 Q pmRA 0.6
Q pmDE 1.7 BTmag 10.229 E BTmag 0.036 VTmag 9.948
E VTmag 0.038 Prox 144 TYC T HIP 92441
CCDM A RAdeg 282.58183556 DEdeg -45.14300639 EpRA 1990 1.79
EpDE 1990 1.86 E RAdeg 21.8 E DEdeg 23.9 Posflg
Corr -0.3
Hipparcos
Catalog H HIP 92441 Proxy RAhms 18 50 19.64
DEdms -45 08 34.8 Vmag 9.97 VarFlag R Vmag G
RAdeg 282.582 DEdeg -45.143 AstroRef A Plx 1.68
CCDM 18503-4509 N CCDM I Nsys 2 Ncomp 1
MultFlag C Source P Qual A M HIP
Theta Rho HD 173946 BD
CD CD-4512791 CP CP-45 9487 Dm number -4512791 VIred 0.38
SpType F0V R SpType Coord arcsec 2000 185019.64-450834.8
Hipparcos 2
HIP 92441 Sn 95 So 3 Nc 1
RArad 4.9319831737 DErad -0.7878940304 Plx 0.3 PmRA 1.21
PmDE -17.26 E RArad 2.65 E DErad 1.96 E Plx 2.77
E pmRA 3.47 E pmDE 2.33 Hpmag 9.9967 E Hpmag 0.0136
SHp 0.05 VA 0 BV 0.33 E BV 0.02
VI 0.38
CCDM
Ccdm 18503-4509 RComp Comp A Note1
Note2 Discov num DRAs 1.63 DDEs 25.0
R dRAs 40 Year Theta Rho
Obs 2 Vmag 10.8 Sp A3 PmNote
PmRA PmDE Dm number -4512791 Cat1 CD
Name2 Cat2 HD 173946 M HD
ADS BDS M ADS BDS N IDS * IDS 18430S4515A
HIC 92441
 
 
18503-4509 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 185018.79-450828.1 Mag 11.75 PmRA -4.00
PmDE -9.0 HIP 92437 Tycho2 8373-02658-1 Calc delta mag 1.8
Calc coord yes
Tycho2
Tycho2 8373-02658-1 Pflag RAmdeg 282.57687438 DEmdeg -45.14114677
PmRA 5.5 PmDE -12.2 E RAmdeg 86 E DEmdeg 93
E pmRA 2.6 E pmDE 2.5 EpRAm 1977.40 EpDEm 1971.19
Num 3 Q RAmdeg 1.9 Q DEmdeg 0.7 Q pmRA 1.9
Q pmDE 0.7 BTmag 13.955 E BTmag 0.592 VTmag 11.748
E VTmag 0.194 Prox 144 TYC HIP 92437
CCDM B RAdeg 282.57685583 DEdeg -45.14111889 EpRA 1990 1.80
EpDE 1990 1.87 E RAdeg 94.0 E DEdeg 106.4 Posflg
Corr -0.3
Hipparcos
Catalog H HIP 92437 Proxy RAhms 18 50 18.44
DEdms -45 08 28.1 Vmag 11.56 VarFlag R Vmag H
RAdeg 282.577 DEdeg -45.1411 AstroRef B Plx 0.65
CCDM 18503-4509 N CCDM I Nsys 2 Ncomp 1
MultFlag C Source I Qual A M HIP
Theta Rho HD BD
CD CP Dm number VIred 0.75
SpType R SpType Coord arcsec 2000 185018.44-450828.1
Hipparcos 2
HIP 92437 Sn 95 So 3 Nc 1
RArad 4.9318957103 DErad -0.7878613774 Plx -8.23 PmRA -44.96
PmDE -59.7 E RArad 10.26 E DErad 7.7 E Plx 9.74
E pmRA 13.88 E pmDE 9.65 Hpmag 11.777 E Hpmag 0.0617
SHp 0 VA 0 BV 0 E BV 0
VI 0
CCDM
Ccdm 18503-4509 RComp Comp B Note1
Note2 Discov num RSU DRAs 0.46 DDEs 32.2
R dRAs 40 Year 1975 Theta 300 Rho 14.3
Obs 1 Vmag 12.0 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS * IDS 18430S4515B
HIC 92437