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Doubles in session


Current system
18334-3844
DUN 222
Kap2 CrA


Nearby doubles
39' : 18364-3857
WG 235

49' : 18363-3809
I 1372

53' : 18331-3752
BRT1781

53' : 18345-3753
JSP 779

53' : 18346-3753
JSP 780

73' : 18274-3827
RST2055

75' : 18395-3824
TDT 978

79' : 18381-3748
B 1368

80' : 18348-3726
SKF2067

80' : 18271-3916
HDS2610

82' : 18267-3821
RST2052

83' : 18401-3910
KPP4114

94' : 18393-3742
TOK 797

94' : 18325-4017
RST4015

95' : 18262-3801
RST2049

100' : 18307-4018
WG 234

100' : 18266-3744
BRT1778

104' : 18372-3711
BRT1783

107' : 18361-3703
JSP 782

108' : 18424-3904
UC 3648

108' : 18245-3817
TDT 843

109' : 18426-3858
SKF2069

110' : 18243-3914
B 1357

111' : 18424-3810
TDT1013

116' : 18337-3648
JSP 777

116' : 18429-3917
I 1379



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Binary Systems
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Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

18334-3844 DUN 222 (Kap2 CrA)

 
 
18h 33m 23.13s -38° 43' 33.6" P.A. 359.00 sep 20.5 mag 5.58,6.16 Sp B9V+A0III dist. 298.51 pc (973.74 l.y.)
 
 
Coord 2000 18334-3844 Discov num DUN 222 Comp Coord arcsec 2000 18 33 23.13 -38 43 33.6
Date first 1836 Date last 2018 Obs 50
Pa first 0 Pa last 358.6 P.A. Now (θ) 358.6°
Sep first 30.0 Sep last 20.47 Sep. Now (ρ) 20.47"
Mag pri 5.58 Mag sec 6.16 delta mag (ΔM) 0.58 Spectral class B9V+A0III (blue-white/white)
Pri motion ra -001 Sec motion ra -002
Pri motion dec -022 Sec motion dec -029
Notes N (See Notes)
rPM=0.243 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name Kap2 CrA Constellation Corona Austrina SAO 210293 HIP 90968
Tycho2 7902-00891-1 Gaia DR2 6726876327040339712 HD 170867 HR 6952
GC 25314 CD CD-3812895 CP CP-38 7537 Bayer Kappa 2 Coronae Austrinae
Bayer name Kap2 CrA Distance 298.51 Distance ly 973.74 Bayer greek κ2 CrA
Bayer or Flamsteed indentifiers not always match the correct constellation because of procession and proper motion of the star. (Cra vs CrA)
 
 
WDS 18334-3844 DUN 222 (Kap2 CrA) : NOTES
 
 
discov_num notes refcode
DUN 222 kap 2 Cra. B is CD-38@12896, kap 1 Cra.
 
 
REFERENCES
 
 
refcode metd author reference
Dun1829 Ma - Dunlop, J. 1829MmRAS...3..257D
Dun1829 MemRAS 3, 257, 1829
Dun1829 some measures corrected in LRR2022
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18334-3844 DUN 222 2002 41 359 20.8 5.58 6.16 B9V A0III N D 183323.13-384333.6
18334-3844 DUN 222 2008 42 359 21.4 5.58 6.16 B9V A0III N D 183323.13-384333.6
18334-3844 DUN 222 2009 43 359 21.7 5.58 6.16 B9V A0III N D 183323.13-384333.6
18334-3844 DUN 222 2013 45 358 21.5 5.58 6.16 B9V A0III N D 183323.13-384333.6
18334-3844 DUN 222 2016 47 358 21.5 5.58 6.16 B9V+A0III N 183323.13-384333.6
18334-3844 DUN 222 2017 49 358 21.3 5.58 6.16 B9V+A0III N 183323.13-384333.6
18334-3844 DUN 222 2018 50 359 20.5 5.58 6.16 B9V+A0III N 183323.13-384333.6

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

 
 
WDS 18334-3844 DUN 222 (Kap2 CrA) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18334-3844 DUN 222 (Kap2 CrA) : MEASURES
 
 
No records found.

 
 
WDS 18334-3844 (Kap2 CrA) : VIRTUAL EYEPIECE
 
 

18334-3844 DUN 222A mag 5.58 Sp B9V 18334-3844 DUN 222B sep 20.5 P.A. 358.90 mag 6.16 Sp A0III 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 18334-3844 (Kap2 CrA) : ALADIN DSS IMAGE @ 18h 33m 23.13s -38° 43' 33.6"
 
 
 
 
WDS 18334-3844 DUN 222 (Kap2 CrA) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18334-3844 DUN 222 distance=0' 18364-3857 WG 235 distance=39' 18363-3809 I 1372 distance=49' 18331-3752 BRT1781 distance=53' 18345-3753 JSP 779 distance=53' 18346-3753 JSP 780 distance=53' 18274-3827 RST2055 distance=73' 18395-3824 TDT 978 distance=75' 18381-3748 B 1368 distance=79' 18348-3726 SKF2067 distance=80' 18271-3916 HDS2610 distance=80' 18267-3821 RST2052 distance=82' 18401-3910 KPP4114 distance=83' 18393-3742 TOK 797 distance=94' 18325-4017 RST4015 distance=94' 18262-3801 RST2049 distance=95' 18307-4018 WG 234 distance=100' 18266-3744 BRT1778 distance=100' 18372-3711 BRT1783 distance=104' 18361-3703 JSP 782 distance=107' 18424-3904 UC 3648 distance=108' 18245-3817 TDT 843 distance=108' 18426-3858 SKF2069 distance=109' 18243-3914 B 1357 distance=110' 18424-3810 TDT1013 distance=111' 18337-3648 JSP 777 distance=116' 18429-3917 I 1379 distance=116' 18381-3702 TDT 966 distance=117' 18235-3844 I 1364 distance=117' 18247-3746 B 1358 distance=117' 18377-4029 RST2068 distance=117' 18434-3838 B 2458 distance=117' 18251-3738 B 1360 distance=118' 18325-3643 TDT 933 distance=122' 18322-4045 RST2061 distance=123' 18321-4046 RST4014AB distance=124' 18321-4046 RST4014Aa,Ab distance=124' 18380-3653 B 941 distance=124' 18438-3819 COO 227AB distance=125' 18438-3819 COO 227AC distance=125' 18271-4025 TDT 875 distance=126' 18352-4048 CPO 591 distance=127' 18231-3758 RST4009 distance=130' 18222-3857 ALD 69 distance=132' 18264-3700 RST4011 distance=133' 18448-3816 I 1028 distance=138' 18253-3701 BRT1776 distance=140' 18306-3624 HDS2625 distance=144' 18450-3945 SKF2070 distance=149' 18420-4034 UC 3642 distance=149' 18457-3805 UC 3664 distance=150' 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 18334-3844 DUN 222 359 20.5
Show 18364-3857 WG 235 169 2.6 39
Show 18363-3809 I 1372 14 8.7 49
Show 18331-3752 BRT1781 192 4.2 53
Show 18345-3753 JSP 779 220 0.7 53
Show 18346-3753 JSP 780 310 2.7 53
Show 18274-3827 RST2055 14 0.9 73
Show 18395-3824 TDT 978 287 0.7 75
Show 18381-3748 B 1368 153 5.0 79
Show 18348-3726 SKF2067 305 26.9 80
Show 18271-3916 HDS2610 110 7.0 80
Show 18267-3821 RST2052 278 1.4 82
Show 18401-3910 KPP4114 93 35.1 83
Show 18393-3742 TOK 797 235 0.2 94
Show 18325-4017 RST4015 34 3.3 94
Show 18262-3801 RST2049 165 2.2 95
Show 18307-4018 WG 234 113 6.9 100
Show 18266-3744 BRT1778 123 3.1 100
Show 18372-3711 BRT1783 133 4.3 104
Show 18361-3703 JSP 782 3 1.1 107
Show 18424-3904 UC 3648 270 23.6 108
Show 18245-3817 TDT 843 98 0.6 108
Show 18426-3858 SKF2069 182 12.4 109
Show 18243-3914 B 1357 303 5.0 110
Show 18424-3810 TDT1013 327 4.8 111
Show 18337-3648 JSP 777 286 11.2 116
Show 18429-3917 I 1379 122 0.1 116
Show 18381-3702 TDT 966 309 2.8 117
Show 18235-3844 I 1364 176 0.1 117
Show 18247-3746 B 1358 311 1.1 117
Show 18377-4029 RST2068 190 2.0 117
Show 18434-3838 B 2458 59 8.1 117
Show 18251-3738 B 1360 279 2.8 118
Show 18325-3643 TDT 933 286 0.4 122
Show 18322-4045 RST2061 132 2.4 123
Show 18321-4046 RST4014 AB 231 0.3 124
Show 18321-4046 RST4014 Aa,Ab 327 0.1 124
Show 18380-3653 B 941 230 1.6 124
Show 18438-3819 COO 227 AB 213 29.5 125
Show 18438-3819 COO 227 AC 51 43.3 125
Show 18271-4025 TDT 875 235 2.2 126
Show 18352-4048 CPO 591 7 5.2 127
Show 18231-3758 RST4009 44 0.5 130
Show 18222-3857 ALD 69 82 2.4 132
Show 18264-3700 RST4011 130 0.6 133
Show 18448-3816 I 1028 319 0.8 138
Show 18253-3701 BRT1776 175 3.3 140
Show 18306-3624 HDS2625 343 8.5 144
Show 18450-3945 SKF2070 106 17.6 149
Show 18420-4034 UC 3642 337 47.0 149
Show 18457-3805 UC 3664 179 62.1 150

 
 
WDS 18334-3844 : COMPONENTS
 
 
  A
B pa=358.9°
sep=20.47"
 
 
18334-3844 A
 
 
Componente originario normalizzato AB Name Kap2 CrA Coord arcsec 2000 183323.13-384333.6 Mag 5.58
Spectral class B9V (blue-white) PmRA -1.00 PmDE -22.0 SAO 210293
HIP 90968 Tycho2 7902-00891-1 HD 170868 HR 6952
GC 25315 CD CD-3812895 CP CP-38 7537 Bayer Kappa 2 Coronae Austrinae
Bayer name Kap2 Cra
Tycho2
Tycho2 7902-00891-1 Pflag RAmdeg 278.34638953 DEmdeg -38.72598705
PmRA -0.6 PmDE -21.8 E RAmdeg 3 E DEmdeg 4
E pmRA 1.2 E pmDE 1.1 EpRAm 1991.74 EpDEm 1991.44
Num 14 Q RAmdeg 1.3 Q DEmdeg 3.0 Q pmRA 1.4
Q pmDE 2.9 BTmag 5.499 E BTmag 0.014 VTmag 5.578
E VTmag 0.009 Prox 214 TYC T HIP 90968
CCDM A RAdeg 278.34639111 DEdeg -38.72593750 EpRA 1990 1.87
EpDE 1990 1.78 E RAdeg 3.4 E DEdeg 3.8 Posflg D
Corr 0.0
SAO
SAO 210293 DelFlag D RA1950 PmRA1950 -0.0002
DE1950 PmDE1950 -0.016 Vmag 6.6 SpType A
Double code Source 41 CatNum 9549 DM CD-3812896
DMcomp BDsup HD 170868 M HD 0
GC 25315 RA1950rad 4.84300928 DE1950rad -0.67645231 PmRA2000 -0.0002
PmDE2000 -0.017
Hipparcos
Catalog H HIP 90968 Proxy RAhms 18 33 23.13
DEdms -38 43 33.4 Vmag 5.67 VarFlag R Vmag H
RAdeg 278.346 DEdeg -38.7259 AstroRef A Plx 1.9
CCDM 18334-3843 N CCDM I Nsys 2 Ncomp 1
MultFlag C Source P Qual A M HIP
Theta Rho HD 170868 BD
CD CD-3812895 CP CP-38 7537 Dm number -3812895 VIred -0.04
SpType B9.5 R SpType Coord arcsec 2000 183323.13-384333.4
Hipparcos 2
HIP 90968 Sn 95 So 3 Nc 1
RArad 4.8580609437 DErad -0.6758950363 Plx 3.35 PmRA 2.76
PmDE -21.97 E RArad 1.9 E DErad 1.3 E Plx 2.1
E pmRA 2.48 E pmDE 1.53 Hpmag 5.6534 E Hpmag 0.0435
SHp 0.055 VA 0 BV -0.06 E BV 0.02
VI -0.04
 
 
18334-3844 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 183323.10-384313.1 Mag 6.16 Spectral class A0III (white)
PmRA -2.00 PmDE -29.0 SAO 210295 HIP 90969
Tycho2 7902-01905-1 HD 170867 HR 6953 GC 25314
CD CD-3812896 CP CP-38 7538 Bayer Kappa 1 Coronae Austrinae Bayer name Kap1 Cra
Calc delta mag 0.58 Calc coord yes
Tycho2
Tycho2 7902-01905-1 Pflag RAmdeg 278.34616930 DEmdeg -38.72007117
PmRA -2.1 PmDE -28.6 E RAmdeg 4 E DEmdeg 4
E pmRA 3.3 E pmDE 3.1 EpRAm 1991.84 EpDEm 1991.74
Num 3 Q RAmdeg 1.2 Q DEmdeg 1.0 Q pmRA 1.2
Q pmDE 1.1 BTmag 6.128 E BTmag 0.014 VTmag 6.163
E VTmag 0.010 Prox 214 TYC T HIP 90969
CCDM B RAdeg 278.34617556 DEdeg -38.72000583 EpRA 1990 1.86
EpDE 1990 1.76 E RAdeg 3.5 E DEdeg 4.1 Posflg
Corr 0.1
SAO
SAO 210295 DelFlag RA1950 PmRA1950 -0.0003
DE1950 PmDE1950 -0.029 Vmag 6 SpType B8
Double code Source 70 CatNum 25314 DM CD-3812896
DMcomp BDsup HD 170867 M HD 0
GC 25314 RA1950rad 4.84301388 DE1950rad -0.67656238 PmRA2000 -0.0003
PmDE2000 -0.03
Hipparcos
Catalog H HIP 90969 Proxy RAhms 18 33 23.08
DEdms -38 43 12.0 Vmag 6.31 VarFlag R Vmag G
RAdeg 278.346 DEdeg -38.72 AstroRef B Plx 6.67
CCDM 18334-3843 N CCDM I Nsys 2 Ncomp 1
MultFlag C Source I Qual A M HIP
Theta Rho HD 170867 BD
CD CD-3812896 CP CP-38 7538 Dm number -3812896 VIred 0.04
SpType B8 R SpType Coord arcsec 2000 183323.08-384312.0
Hipparcos 2
HIP 90969 Sn 95 So 3 Nc 1
RArad 4.8580569747 DErad -0.6757915108 Plx 21.18 PmRA 12.01
PmDE -23.71 E RArad 5.89 E DErad 3.93 E Plx 6.53
E pmRA 7.63 E pmDE 4.57 Hpmag 6.4001 E Hpmag 0.0745
SHp 0 VA 0 BV 0.02 E BV 0.007
VI 0.04