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Doubles in session


Current system
18438-3819
COO 227 AC


Nearby doubles
13' : 18448-3816
I 1028

19' : 18434-3838
B 2458

20' : 18424-3810
TDT1013

27' : 18457-3805
UC 3664

37' : 18456-3750
B 945

41' : 18426-3858
SKF2069

48' : 18424-3904
UC 3648

51' : 18395-3824
TDT 978

59' : 18429-3917
I 1379

65' : 18393-3742
TOK 797

67' : 18401-3910
KPP4114

75' : 18381-3748
B 1368

87' : 18450-3945
SKF2070

87' : 18483-3710
JSP 787AB

89' : 18503-3736
SWR 255

89' : 18363-3809
I 1372

93' : 18497-3719
B 949

95' : 18364-3857
WG 235

95' : 18416-3649
WFC 212

96' : 18450-3646
LDS 652

96' : 18500-3921
WG 236

96' : 18484-3701
HJ 5064

96' : 18484-3700
UC 3678

97' : 18515-3851
B 2869

103' : 18381-3702
TDT 966

104' : 18372-3711
BRT1783



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

18438-3819 COO 227 AC

 
 
18h 43m 46.94s -38° 19' 24.3" P.A. 51.00 sep 43.3 mag 5.13,9.90 Sp A2Vn dist. 62.93 pc (205.28 l.y.)
 
 
Coord 2000 18438-3819 Discov num COO 227 Comp AC Coord arcsec 2000 18 43 46.94 -38 19 24.3
Date first 1900 Date last 2008 Obs 5
Pa first 57 Pa last 50.9 P.A. Now (θ) 50.9°
Sep first 40.0 Sep last 43.26 Sep. Now (ρ) 43.26"
Mag pri 5.13 Mag sec 9.90 delta mag (ΔM) 4.77 Spectral class A2Vn (white)
Pri motion ra +001 Sec motion ra +037
Pri motion dec -054 Sec motion dec -005
Notes N (See Notes)
rPM=1.126
This double is not physical.
 
 
18438-3819 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show Lam CrA 210501 18 43 47 -38 19 24 COO 227 AB 2016 25 213 29.5 5.12 10.01 4.89
Show 210501 18 43 47 -38 19 24 COO 227 AC 2008 5 51 43.3 5.13 9.90 4.77 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name NSV11247 CrA Constellation Corona Austrina SAO 210501 HIP 91875
Tycho2 7915-01673-1 Gaia DR2 6730089817255923072 HD 172777 HR 7021
GC 25599 CD CD-3813036 CP CP-38 7574 Bayer Lambda Coronae Austrinae
Bayer name Lam CrA Distance 62.93 Distance ly 205.28 Bayer greek λ CrA
 
 
WDS 18438-3819 COO 227 AC : NOTES
 
 
discov_num notes refcode
COO 227 11 Cra. Variable?
 
 
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CoO9999 Unpublished, manuscript or reference not found.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
18438-3819 COO 227 AC 2002 3 52 42.9 5.12   A2Vn N D 184346.94-381924.3
18438-3819 COO 227 AC 2008 4 51 43.3 5.12   A2Vn N D 184346.94-381924.3

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

 
 
WDS 18438-3819 COO 227 AC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18438-3819 COO 227 AC : MEASURES
 
 
No records found.

 
 
WDS 18438-3819 : VIRTUAL EYEPIECE
 
 

18438-3819 COO 227A mag 5.12 Sp A2Vn 18438-3819 COO 227B sep 27.7 P.A. 207.20 mag 10.01 18438-3819 COO 227C sep 37.9 P.A. 44.00 mag 9.9 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 18438-3819 : ALADIN DSS IMAGE @ 18h 43m 46.94s -38° 19' 24.3"
 
 
 
 
WDS 18438-3819 COO 227 AC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18438-3819 COO 227AC distance=0' 18448-3816 I 1028 distance=13' 18434-3838 B 2458 distance=19' 18424-3810 TDT1013 distance=20' 18457-3805 UC 3664 distance=27' 18456-3750 B 945 distance=37' 18426-3858 SKF2069 distance=41' 18424-3904 UC 3648 distance=48' 18395-3824 TDT 978 distance=51' 18429-3917 I 1379 distance=59' 18393-3742 TOK 797 distance=65' 18401-3910 KPP4114 distance=67' 18381-3748 B 1368 distance=75' 18450-3945 SKF2070 distance=87' 18483-3710 JSP 787AB distance=87' 18483-3710 JSP 787Aa,Ab distance=87' 18503-3736 SWR 255 distance=89' 18363-3809 I 1372 distance=89' 18497-3719 B 949 distance=93' 18364-3857 WG 235 distance=95' 18416-3649 WFC 212 distance=95' 18450-3646 LDS 652 distance=96' 18500-3921 WG 236 distance=96' 18484-3701 HJ 5064 distance=96' 18484-3700 UC 3678 distance=96' 18515-3851 B 2869 distance=97' 18381-3702 TDT 966 distance=103' 18372-3711 BRT1783 distance=104' 18508-3717 B 951 distance=104' 18502-3708 SWR 254 distance=105' 18469-3959 UC 3668 distance=107' 18511-3715 RSS 493 distance=109' 18468-3636 KOH 108Aa,Ab distance=110' 18468-3636 NHR 10AB distance=110' 18529-3837 VOU 94 distance=111' 18380-3653 B 941 distance=111' 18346-3753 JSP 780 distance=112' 18345-3753 JSP 779 distance=113' 18497-3652 UC 3689 distance=113' 18474-3637 LDS 653 distance=113' 18533-3823 VOU 95 distance=114' 18494-3646 JSP 789 distance=115' 18534-3858 VOU 96 distance=117' 18348-3726 SKF2067 distance=119' 18361-3703 JSP 782 distance=120' 18474-3627 WFC 285 distance=121' 18486-4007 TOI1081 distance=121' 18334-3844 DUN 222 distance=125' 18496-4005 UC 3688 distance=126' 18331-3752 BRT1781 distance=129' 18544-3854 VOU 97 distance=129' 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 18438-3819 COO 227 AB 213 29.5
Show 18438-3819 COO 227 AC 51 43.3
Show 18448-3816 I 1028 319 0.8 13
Show 18434-3838 B 2458 59 8.1 19
Show 18424-3810 TDT1013 327 4.8 20
Show 18457-3805 UC 3664 179 62.1 27
Show 18456-3750 B 945 39 0.9 37
Show 18426-3858 SKF2069 182 12.4 41
Show 18424-3904 UC 3648 270 23.6 48
Show 18395-3824 TDT 978 287 0.7 51
Show 18429-3917 I 1379 122 0.1 59
Show 18393-3742 TOK 797 235 0.2 65
Show 18401-3910 KPP4114 93 35.1 67
Show 18381-3748 B 1368 153 5.0 75
Show 18450-3945 SKF2070 106 17.6 87
Show 18483-3710 JSP 787 AB 303 2.1 87
Show 18483-3710 JSP 787 Aa,Ab 293 0.6 87
Show 18503-3736 SWR 255 30 29.2 89
Show 18363-3809 I 1372 14 8.7 89
Show 18497-3719 B 949 170 3.3 93
Show 18364-3857 WG 235 169 2.6 95
Show 18416-3649 WFC 212 99 9.9 95
Show 18450-3646 LDS 652 211 77.6 96
Show 18500-3921 WG 236 223 16.1 96
Show 18484-3701 HJ 5064 268 18.3 96
Show 18484-3700 UC 3678 336 81.5 96
Show 18515-3851 B 2869 77 10.3 97
Show 18381-3702 TDT 966 309 2.8 103
Show 18372-3711 BRT1783 133 4.3 104
Show 18508-3717 B 951 29 4.7 104
Show 18502-3708 SWR 254 73 14.9 105
Show 18469-3959 UC 3668 22 40.3 107
Show 18511-3715 RSS 493 25 9.3 109
Show 18468-3636 KOH 108 Aa,Ab 100 0.2 110
Show 18468-3636 NHR 10 AB 227 7.9 110
Show 18529-3837 VOU 94 50 7.5 111
Show 18380-3653 B 941 230 1.6 111
Show 18346-3753 JSP 780 310 2.7 112
Show 18345-3753 JSP 779 220 0.7 113
Show 18497-3652 UC 3689 231 55.1 113
Show 18474-3637 LDS 653 178 5.5 113
Show 18533-3823 VOU 95 241 5.4 114
Show 18494-3646 JSP 789 335 0.5 115
Show 18534-3858 VOU 96 126 1.9 117
Show 18348-3726 SKF2067 305 26.9 119
Show 18361-3703 JSP 782 3 1.1 120
Show 18474-3627 WFC 285 290 12.4 121
Show 18486-4007 TOI1081 150 0.3 121
Show 18334-3844 DUN 222 359 20.5 125
Show 18496-4005 UC 3688 65 22.7 126
Show 18331-3752 BRT1781 192 4.2 129

 
 
WDS 18438-3819 : COMPONENTS
 
 
  A B
B pa=207.2°
sep=27.71"
 
C pa=44.0°
sep=37.92"
pa=36.9°
sep=64.94"
 
 
18438-3819 A
 
 
Name Lam CrA Coord arcsec 2000 184346.94-381924.3 Mag 5.12 Spectral class A2Vn (white)
PmRA 1.00 PmDE -54.0 SAO 210501 HIP 91875
Tycho2 7915-01673-1 HD 172777 HR 7021 GC 25599
CD CD-3813036 CP CP-38 7574 Bayer Lambda Bayer name Lam
Tycho2
Tycho2 7915-01673-1 Pflag RAmdeg 280.94559597 DEmdeg -38.32344263
PmRA 2.0 PmDE -54.3 E RAmdeg 3 E DEmdeg 4
E pmRA 0.7 E pmDE 0.8 EpRAm 1991.56 EpDEm 1991.36
Num 18 Q RAmdeg 0.7 Q DEmdeg 1.0 Q pmRA 0.6
Q pmDE 0.9 BTmag 5.204 E BTmag 0.014 VTmag 5.121
E VTmag 0.009 Prox 292 TYC T HIP 91875
CCDM RAdeg 280.94559000 DEdeg -38.32331944 EpRA 1990 1.88
EpDE 1990 1.84 E RAdeg 3.2 E DEdeg 3.6 Posflg
Corr 0.0
SAO
SAO 210501 DelFlag RA1950 PmRA1950 0.0002
DE1950 PmDE1950 -0.056 Vmag 5.1 SpType A0
Double code Source 70 CatNum 25599 DM CD-3813036
DMcomp BDsup HD 172777 M HD 0
GC 25599 RA1950rad 4.88846133 DE1950rad -0.66974434 PmRA2000 0.0002
PmDE2000 -0.057
Hipparcos
Catalog H HIP 91875 Proxy RAhms 18 43 46.94
DEdms -38 19 23.9 Vmag 5.11 VarFlag R Vmag H
RAdeg 280.946 DEdeg -38.3233 AstroRef Plx 16.15
CCDM 18438-3819 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 172777 BD
CD CD-3813036 CP CP-38 7574 Dm number -3813036 VIred 0.09
SpType A0/A1V R SpType Coord arcsec 2000 184346.94-381923.9
Hipparcos 2
HIP 91875 Sn 5 So 0 Nc 1
RArad 4.9034255256 DErad -0.6688679497 Plx 15.89 PmRA 1.05
PmDE -53.76 E RArad 0.27 E DErad 0.18 E Plx 0.33
E pmRA 0.37 E pmDE 0.22 Hpmag 5.1458 E Hpmag 0.0006
SHp 0.006 VA 0 BV 0.075 E BV 0.002
VI 0.09
CCDM
Ccdm 18438-3819 RComp Comp A Note1
Note2 Discov num DRAs -0.96 DDEs -23.3
R dRAs 41 Year Theta Rho
Obs 3 Vmag 5.1 Sp A0 PmNote *
PmRA 2 PmDE -61 Dm number -3813036 Cat1 CD
Name2 210501 Cat2 SAO HD 172777 M HD
ADS BDS M ADS BDS N IDS IDS 18369S3825A
HIC 91875
 
 
18438-3819 B
 
 
Coord arcsec 2000 184345.86-381949.0 Mag 10.01 PmRA 0.00 PmDE -59.0
Calc delta mag 4.89 Calc coord yes
CCDM
Ccdm 18438-3819 RComp Comp B Note1
Note2 Discov num COO 227 DRAs -2.42 DDEs -48.3
R dRAs 41 Year 1900 Theta 214 Rho 29.2
Obs 5 Vmag 9.7 Sp K0 PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 18369S3825B
HIC
 
 
18438-3819 C
 
 
Coord arcsec 2000 184349.18-381857.0 Mag 9.9 PmRA 37.00 PmDE -5.0
Calc delta mag 4.78 Calc coord yes
CCDM
Ccdm 18438-3819 RComp Comp C Note1
Note2 Discov num COO 227 DRAs 1.79 DDEs 1.7
R dRAs 41 Year 1900 Theta 057 Rho 40.0
Obs 1 Vmag Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 18369S3825C
HIC