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Current system
18233-4247
COO 224
HD 168755


Nearby doubles
18' : 18224-4232
TDT 820

19' : 18228-4304
KPP3112

42' : 18205-4219
DON 889

44' : 18269-4228
BRT1054

48' : 18270-4223
BRT1055

54' : 18195-4213
BRT1042

62' : 18289-4246
CPO9267

62' : 18251-4148
BRT1050

64' : 18211-4344
BRT1045

65' : 18175-4245
CPO 579

67' : 18287-4318
DON 903

69' : 18295-4243
DON 904

71' : 18274-4154
TDT 883

72' : 18298-4241
BRT1059

76' : 18297-4221
BRT1060

77' : 18200-4354
HDS2591

80' : 18162-4304
LDS 631

81' : 18243-4407
DUN 221

83' : 18293-4157
B 2449

84' : 18210-4406
DON 890

84' : 18210-4407
TDT 813

85' : 18171-4336
HDS2583

85' : 18161-4316
I 1357

86' : 18309-4307
BRT1061

89' : 18218-4413
I 1363

89' : 18302-4202
CPO 587



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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

18233-4247 COO 224 (HD 168755)

 
 
18h 23m 19.11s -42° 46' 47.9" P.A. 135.00 sep 3.0 mag 8.83,8.98 Sp F5IV/V dist. 88.03 pc (287.15 l.y.)
 
 
Coord 2000 18233-4247 Discov num COO 224 Comp Coord arcsec 2000 18 23 19.11 -42 46 47.9
Date first 1889 Date last 2016 Obs 16
Pa first 137 Pa last 135.1 P.A. Now (θ) 135.1°
Sep first 3.6 Sep last 2.996 Sep. Now (ρ) 2.996"
Mag pri 8.83 Mag sec 8.98 delta mag (ΔM) 0.15 Spectral class F5IV/V (yellow-white)
Pri motion ra -012 Sec motion ra -012
Pri motion dec -082 Sec motion dec -082
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 168755 Constellation Corona Austrina SAO 228967 HIP 90109
Tycho2 7909-03121-1 Gaia DR2 6722825039006633344 HD 168755 GC 25070
CD CD-4213180 CP CP-42 8378 Distance 88.03 Distance ly 287.15
 
 
WDS 18233-4247 COO 224 (HD 168755) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
CoO1927A T - Cordoba Obs. 1927sdsc.book......
CoO1927A cited in SDS (Southern Double Star Catalog), 1927
CoO9999 T - Cordoba Obs. ...................
CoO9999 Unpublished, manuscript or reference not found.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18233-4247 COO 224 1991 13 135 3.1 8.83 8.98 F5IV/V 182319.11-424647.9
18233-4247 COO 224 1998 14 138 3.2 8.83 8.98 F5IV/V 182319.11-424647.9
18233-4247 COO 224 2015 15 135 3.0 8.83 8.98 F5IV/V 182319.11-424647.9
18233-4247 COO 224 2016 16 135 3.0 8.83 8.98 F5IV/V 182319.11-424647.9

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

 
 
WDS 18233-4247 COO 224 (HD 168755) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18233-4247 COO 224 (HD 168755) : MEASURES
 
 
No records found.

 
 
WDS 18233-4247 (HD 168755) : VIRTUAL EYEPIECE
 
 

18233-4247 COO 224A mag 8.83 Sp F5IV/V 18233-4247 COO 224B sep 2.6 P.A. 143.80 mag 8.98 virtual eyepiece
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Radius:
Components only
 
 
WDS 18233-4247 (HD 168755) : ALADIN DSS IMAGE @ 18h 23m 19.11s -42° 46' 47.9"
 
 
 
 
WDS 18233-4247 COO 224 (HD 168755) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18233-4247 COO 224 distance=0' 18224-4232 TDT 820 distance=18' 18228-4304 KPP3112 distance=19' 18205-4219 DON 889 distance=42' 18269-4228 BRT1054 distance=44' 18270-4223 BRT1055 distance=48' 18195-4213 BRT1042 distance=54' 18289-4246 CPO9267 distance=62' 18251-4148 BRT1050 distance=62' 18211-4344 BRT1045 distance=64' 18175-4245 CPO 579 distance=65' 18287-4318 DON 903 distance=67' 18295-4243 DON 904 distance=69' 18274-4154 TDT 883 distance=71' 18298-4241 BRT1059 distance=72' 18297-4221 BRT1060 distance=76' 18200-4354 HDS2591 distance=77' 18162-4304 LDS 631 distance=80' 18243-4407 DUN 221 distance=81' 18293-4157 B 2449 distance=83' 18210-4406 DON 890 distance=84' 18210-4407 TDT 813 distance=84' 18171-4336 HDS2583 distance=85' 18161-4316 I 1357 distance=85' 18309-4307 BRT1061 distance=86' 18218-4413 I 1363 distance=89' 18302-4202 CPO 587 distance=89' 18257-4412 DON 898 distance=89' 18312-4312 DAM 677 distance=91' 18213-4416 BRT1046 distance=93' 18300-4149 TDT 915 distance=95' 18314-4322 CPO 81AB distance=96' 18314-4322 CPO 81AC distance=96' 18285-4129 BRT1058AB distance=97' 18285-4129 BRT1058Aa,Ab distance=97' 18143-4309 SHY 740 distance=102' 18161-4351 DAM 50 distance=102' 18161-4353 CPO9261 distance=103' 18312-4344 I 1369 distance=104' 18300-4134 RST2058 distance=104' 18222-4434 CPO9265 distance=109' 18308-4358 DON 905 distance=109' 18195-4428 CPO 580 distance=110' 18135-4230 BRT1033 distance=110' 18323-4159 CPO9268 distance=111' 18334-4240 CPO 82AB distance=112' 18334-4240 I 9020AC distance=112' 18220-4437 CPO9264 distance=112' 18133-4220 BRT1032 distance=115' 18329-4156 B 2453 distance=118' 18128-4233 BRT1030 distance=118' 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 18233-4247 COO 224 135 3.0
Show 18224-4232 TDT 820 237 2.1 18
Show 18228-4304 KPP3112 334 2.4 19
Show 18205-4219 DON 889 260 0.8 42
Show 18269-4228 BRT1054 165 3.5 44
Show 18270-4223 BRT1055 81 5.5 48
Show 18195-4213 BRT1042 264 7.0 54
Show 18289-4246 CPO9267 36 5.6 62
Show 18251-4148 BRT1050 312 2.8 62
Show 18211-4344 BRT1045 74 4.3 64
Show 18175-4245 CPO 579 256 3.0 65
Show 18287-4318 DON 903 149 1.2 67
Show 18295-4243 DON 904 108 1.2 69
Show 18274-4154 TDT 883 294 0.5 71
Show 18298-4241 BRT1059 23 2.7 72
Show 18297-4221 BRT1060 179 3.2 76
Show 18200-4354 HDS2591 27 0.3 77
Show 18162-4304 LDS 631 274 16.1 80
Show 18243-4407 DUN 221 162 74.0 81
Show 18293-4157 B 2449 269 10.2 83
Show 18210-4406 DON 890 235 0.9 84
Show 18210-4407 TDT 813 145 2.1 84
Show 18171-4336 HDS2583 10 0.1 85
Show 18161-4316 I 1357 36 6.5 85
Show 18309-4307 BRT1061 26 9.3 86
Show 18218-4413 I 1363 297 0.8 89
Show 18302-4202 CPO 587 56 4.6 89
Show 18257-4412 DON 898 24 0.5 89
Show 18312-4312 DAM 677 210 3.5 91
Show 18213-4416 BRT1046 311 5.1 93
Show 18300-4149 TDT 915 90 0.8 95
Show 18314-4322 CPO 81 AB 35 12.4 96
Show 18314-4322 CPO 81 AC 110 8.1 96
Show 18285-4129 BRT1058 AB 178 5.2 97
Show 18285-4129 BRT1058 Aa,Ab 102 0.2 97
Show 18143-4309 SHY 740 345 999.9 102
Show 18161-4351 DAM 50 49 3.8 102
Show 18161-4353 CPO9261 25 5.2 103
Show 18312-4344 I 1369 238 4.3 104
Show 18300-4134 RST2058 38 0.5 104
Show 18222-4434 CPO9265 204 4.9 109
Show 18308-4358 DON 905 53 0.5 109
Show 18195-4428 CPO 580 51 3.3 110
Show 18135-4230 BRT1033 91 2.8 110
Show 18323-4159 CPO9268 83 5.3 111
Show 18334-4240 CPO 82 AB 45 5.9 112
Show 18334-4240 I 9020 AC 74 25.1 112
Show 18220-4437 CPO9264 179 5.8 112
Show 18133-4220 BRT1032 93 5.6 115
Show 18329-4156 B 2453 256 6.3 118
Show 18128-4233 BRT1030 7 4.6 118

 
 
WDS 18233-4247 : COMPONENTS
 
 
  A
B pa=143.8°
sep=2.63"
 
 
18233-4247 A
 
 
Componente originario normalizzato AB Name HD 168755 Coord arcsec 2000 182319.11-424647.9 Mag 8.83
Spectral class F5IV/V (yellow-white) PmRA -12.00 PmDE -82.0 SAO 228967
HIP 90109 Tycho2 7909-03121-1 HD 168755 GC 25070
CD CD-4213180 CP CP-42 8378
Tycho2
Tycho2 7909-03121-1 Pflag P RAmdeg 275.82962922 DEmdeg -42.77996260
PmRA -14.2 PmDE -81.7 E RAmdeg 11 E DEmdeg 14
E pmRA 2.4 E pmDE 2.1 EpRAm 1991.48 EpDEm 1991.16
Num 3 Q RAmdeg 1.5 Q DEmdeg 1.9 Q pmRA 1.5
Q pmDE 2.0 BTmag 9.257 E BTmag 0.024 VTmag 8.828
E VTmag 0.021 Prox 31 TYC T HIP 90109
CCDM A RAdeg 275.82933250 DEdeg -42.77952028 EpRA 1990 1.72
EpDE 1990 1.63 E RAdeg 10.9 E DEdeg 13.9 Posflg
Corr -0.3
SAO
SAO 228967 DelFlag RA1950 PmRA1950 -0.0013
DE1950 PmDE1950 -0.122 Vmag 8 SpType F5
Double code Source 70 CatNum 25070 DM CD-4213180
DMcomp BDsup HD 168755 M HD 0
GC 25070 RA1950rad 4.79847573 DE1950rad -0.7470962 PmRA2000 -0.0012
PmDE2000 -0.123
Hipparcos
Catalog H HIP 90109 Proxy H RAhms 18 23 19.04
DEdms -42 46 46.2 Vmag 8.01 VarFlag R Vmag H
RAdeg 275.829 DEdeg -42.7795 AstroRef A Plx 10.15
CCDM 18233-4247 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 135 Rho 3.097 HD 168755 BD
CD CD-4213180 CP CP-42 8378 Dm number -4213180 VIred -0.21
SpType F5IV/V R SpType Coord arcsec 2000 182319.04-424646.2
Hipparcos 2
HIP 90109 Sn 15 So 3 Nc 2
RArad 4.814130009 DErad -0.7466433039 Plx 11.36 PmRA -14.3
PmDE -81.99 E RArad 2.72 E DErad 1.83 E Plx 1.75
E pmRA 3.42 E pmDE 1.99 Hpmag 8.1073 E Hpmag 0.0022
SHp 0.017 VA 0 BV 0.401 E BV 0.03
VI 0.47
CCDM
Ccdm 18233-4247 RComp Comp A Note1
Note2 Discov num DRAs 1.05 DDEs 12.9
R dRAs 12 Year Theta Rho
Obs 2 Vmag 8.6 Sp F5 PmNote
PmRA -18 PmDE -127 Dm number -4213180 Cat1 CD
Name2 228967 Cat2 SAO HD 168755 M HD
ADS BDS M ADS BDS N IDS IDS 18161S4250A
HIC 90109
 
 
18233-4247 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 182319.25-424650.0 Mag 8.98 PmRA -12.00
PmDE -82.0 HIP 90109 Tycho2 7909-01656-1 Calc delta mag 0.15
Calc coord yes
Tycho2
Tycho2 7909-01656-1 Pflag P RAmdeg 275.82962922 DEmdeg -42.77996260
PmRA -14.2 PmDE -81.7 E RAmdeg 11 E DEmdeg 14
E pmRA 2.4 E pmDE 2.1 EpRAm 1991.48 EpDEm 1991.16
Num 3 Q RAmdeg 1.5 Q DEmdeg 1.9 Q pmRA 1.5
Q pmDE 2.0 BTmag 9.467 E BTmag 0.021 VTmag 8.979
E VTmag 0.016 Prox 31 TYC T HIP 90109
CCDM B RAdeg 275.83015972 DEdeg -42.78013222 EpRA 1990 1.74
EpDE 1990 1.64 E RAdeg 8.5 E DEdeg 11.7 Posflg D
Corr 0.1
Hipparcos
Catalog H HIP 90109 Proxy H RAhms 18 23 19.04
DEdms -42 46 46.2 Vmag 8.01 VarFlag R Vmag H
RAdeg 275.829 DEdeg -42.7795 AstroRef A Plx 10.15
CCDM 18233-4247 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 135 Rho 3.097 HD 168755 BD
CD CD-4213180 CP CP-42 8378 Dm number -4213180 VIred -0.21
SpType F5IV/V R SpType Coord arcsec 2000 182319.04-424646.2
Hipparcos 2
HIP 90109 Sn 15 So 3 Nc 2
RArad 4.814130009 DErad -0.7466433039 Plx 11.36 PmRA -14.3
PmDE -81.99 E RArad 2.72 E DErad 1.83 E Plx 1.75
E pmRA 3.42 E pmDE 1.99 Hpmag 8.1073 E Hpmag 0.0022
SHp 0.017 VA 0 BV 0.401 E BV 0.03
VI 0.47
CCDM
Ccdm 18233-4247 RComp Comp B Note1
Note2 Discov num COO 224 DRAs DDEs
R dRAs Year 1935 Theta 137 Rho 3.2
Obs 8 Vmag 8.9 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 18161S4250B
HIC 90109