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Doubles in session


Current system
12381-5556
KOU 12 AC


Nearby doubles
12' : 12368-5600
KPP1151

19' : 12385-5537
TOB 107

23' : 12408-5554
TDS8484

30' : 12416-5553
HU 1495AB

31' : 12418-5555
HDS1778

33' : 12413-5538
KPP 740

36' : 12369-5629
JSP 543

40' : 12428-5557
KOU 15

46' : 12374-5511
RST2807

46' : 12421-5627
JSP 551AB

51' : 12435-5620
TDS8501

52' : 12443-5553
R 206

54' : 12318-5607
I 219

59' : 12362-5652
HDS1768

59' : 12355-5651
RST2805

60' : 12321-5629
TDS8425

61' : 12335-5510
RST2803

65' : 12311-5623
TOB 85

65' : 12333-5505
TDS8433AB

66' : 12303-5555
JSP 537

69' : 12425-5655
TDS8492

70' : 12341-5657
BRT2808

71' : 12333-5459
KOU 11AB

73' : 12430-5656
TDS8496

75' : 12348-5447
TDS8445

76' : 12470-5547
R 208AB



Selections
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Binocular doubles
Binary Systems
Triple Systems
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Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

12381-5556 KOU 12 AC

 
 
12h 38m 07.29s -55° 55' 52.3" P.A. 221.00 sep 4.2 mag 6.90,14.40 Sp A1/2V dist. 110.99 pc (362.05 l.y.)
 
 
Coord 2000 12381-5556 Discov num KOU  12 Comp AC Coord arcsec 2000 12 38 07.29 -55 55 52.3
Date first 2000 Date last 2000 Obs 1
Pa first 221 Pa last 220.6 P.A. Now (θ) 220.6°
Sep first 4.2 Sep last 4.21 Sep. Now (ρ) 4.21"
Mag pri 6.90 Mag sec 14.40 delta mag (ΔM) 7.5 Spectral class A1/2V (white)
Pri motion ra -035 Sec motion ra
Pri motion dec -008 Sec motion dec
Notes U K (Proper motion indicates non-physical, K-band or other infrared magnitudes)
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
This double is not physical.
 
 
12381-5556 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 109808 240104 12 38 07 -55 55 52 HLD 116 AB 2015 20 181 1.9 7.14 8.94 1.80
Show 240104 12 38 07 -55 55 52 KOU 12 AC 2000 1 221 4.2 6.90 14.40 7.50 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Crux SAO 240104 HIP 61639 Tycho2 8650-02453-1
Gaia DR2 6073430622416839296 HD 109808 CP CP-55 5161 Distance 110.99
Distance ly 362.05
 
 
WDS 12381-5556 KOU 12 AC : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Hld1874 Ma - Holden, E.S. .
Hld1874 Washington Observations, 1874
Hld1875 Ma - Holden, E.S. .
Hld1875 Washington Observations, 1875
Hld1875b Ma j Holden, E.S. & Newcomb, S. 1875AN.....86..321H
Hld1875b AN 86, 321, 1875
Hld1875c Ma j Holden, E.S. 1875AN.....86..321H
Hld1875c AN 86, 321, 1875
Hld1876 Ma - Holden, E.S. .
Hld1876 Washington Observations, 1876
Hld1876b Ma j Holden, E.S. 1876AN.....88..131H
Hld1876b AN 88, 131, 1876
Hld1877 Ma - Holden, E.S. 1877AN.....90..161H
Hld1877 AN 90, 161, 1877
Hld1877b Ma j Holden, E.S. 1877AN.....90..161H
Hld1877b AN 90, 161, 1877
Hld1878 Ma - Holden, E.S. .
Hld1878 Washington Observations, 1878
Hld1878b Ma j Holden, E.S. 1878AN.....93...65H
Hld1878b AN 93, 65, 1878 (data also in Hld1878)
Hld1879 Ma - Holden, E.S. .
Hld1879 Washington Observations, 1879
Hld1879b Ma j Holden, E.S. 1879AN.....95..329H
Hld1879b AN 95, 329, 1879 (data also in Hld1879)
Hld1880 Ma - Holden, E.S. .
Hld1880 Washington Observations, 1880
Hld1880b Ma j Holden, E.S. 1880AN.....97..319H
Hld1880b AN 97, 319, 1880 (data also in Hld1880)
Hld1881 Ma - Holden, E.S. .
Hld1881 Washington Observations, 1881
Hld1881b Ma j Holden, E.S. 1881MNRAS..41..416.
Hld1881b MNRAS 41, 416, 1881
Hld1882 Ma - Holden, E.S. 1882PWasO...1...77H
Hld1882 Pub. Washburn Obs. 1, 77, 1882 (see Pub. Lick Obs. 2, 1894) 1894PLicO...2.....B
Hld1884 Ma - Holden, E.S. 1884PWasO...2...97H
Hld1884 Pub. Washburn Obs. 2, 97, 1884
Kou2005 A - Kouwenhoven, M.B.N., Brown, A.G., Zinnecker, H., Kaper, L., & Portegies Zwart, S. 2005A&A...430..137K
Kou2005 A&A 430, 137, 2005
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12381-5556 KOU 12 AC 2000 1 221 4.2 6.94 14.36 U K 123807.29-555552.3

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

 
 
WDS 12381-5556 KOU 12 AC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 12381-5556 KOU 12 AC : MEASURES
 
 
No records found.

 
 
WDS 12381-5556 : VIRTUAL EYEPIECE
 
 

12381-5556 HLD 116A mag 7.14 Sp A1/2V 12381-5556 HLD 116B sep 1.9 P.A. 180.30 mag 8.94 12381-5556 KOU 12C sep 3.5 P.A. 205.60 mag 14.4 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 12381-5556 : ALADIN DSS IMAGE @ 12h 38m 07.29s -55° 55' 52.3"
 
 
 
 
WDS 12381-5556 KOU 12 AC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

12381-5556 KOU 12AC distance=0' 12368-5600 KPP1151 distance=12' 12385-5537 TOB 107 distance=19' 12408-5554 TDS8484 distance=23' 12416-5553 HU 1495AB distance=30' 12416-5553 TOB 111AC distance=30' 12418-5555 HDS1778 distance=31' 12413-5538 KPP 740 distance=33' 12369-5629 JSP 543 distance=36' 12428-5557 KOU 15 distance=40' 12374-5511 RST2807 distance=46' 12421-5627 JSP 551AB distance=46' 12421-5627 SIN 73AC distance=46' 12421-5627 DAM 580AD distance=46' 12435-5620 TDS8501 distance=51' 12443-5553 R 206 distance=52' 12318-5607 I 219 distance=54' 12362-5652 HDS1768 distance=59' 12355-5651 RST2805 distance=59' 12321-5629 TDS8425 distance=60' 12335-5510 RST2803 distance=61' 12311-5623 TOB 85 distance=65' 12333-5505 TDS8433AB distance=65' 12303-5555 JSP 537 distance=66' 12425-5655 TDS8492 distance=69' 12341-5657 BRT2808 distance=70' 12333-5459 KOU 11AB distance=71' 12333-5459 KOU 11AC distance=71' 12430-5656 TDS8496 distance=73' 12348-5447 TDS8445 distance=75' 12470-5547 TDS8520Aa,Ab distance=76' 12470-5547 R 208AB distance=76' 12464-5629 HJ 4548AB distance=77' 12464-5629 SHT 46AC distance=77' 12464-5629 SHT 46AD distance=77' 12464-5629 SHT 46AE distance=77' 12421-5446 FIN 200 distance=79' 12287-5557 TOB 77 distance=79' 12285-5538 JSP 916 distance=84' 12356-5435 RST2806 distance=84' 12314-5659 RST2802 distance=84' 12456-5653 TOB 120 distance=84' 12286-5624 HDO 217AB distance=85' 12286-5624 HDO 217AC distance=85' 12287-5527 JNN 174 distance=85' 12429-5441 TDS8494 distance=86' 12448-5449 RST2812AB distance=88' 12481-5626 JSP 558 distance=89' 12274-5554 JSP 534 distance=91' 12354-5724 TDS8449 distance=91' 12312-5707 DUN 124AB (Gacrux) distance=92' 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 12381-5556 HLD 116 AB 181 1.9
Show 12381-5556 KOU 12 AC 221 4.2
Show 12368-5600 KPP1151 185 9.0 12
Show 12385-5537 TOB 107 5 27.5 19
Show 12408-5554 TDS8484 90 0.7 23
Show 12416-5553 HU 1495 AB 91 1.0 30
Show 12416-5553 TOB 111 AC 83 19.3 30
Show 12418-5555 HDS1778 262 0.1 31
Show 12413-5538 KPP 740 141 6.5 33
Show 12369-5629 JSP 543 93 2.0 36
Show 12428-5557 KOU 15 211 0.1 40
Show 12374-5511 RST2807 265 1.0 46
Show 12421-5627 JSP 551 AB 193 6.7 46
Show 12421-5627 SIN 73 AC 284 60.2 46
Show 12421-5627 DAM 580 AD 165 15.1 46
Show 12435-5620 TDS8501 190 1.1 51
Show 12443-5553 R 206 280 16.1 52
Show 12318-5607 I 219 50 1.8 54
Show 12362-5652 HDS1768 2 8.1 59
Show 12355-5651 RST2805 80 0.8 59
Show 12321-5629 TDS8425 73 0.6 60
Show 12335-5510 RST2803 170 0.4 61
Show 12311-5623 TOB 85 25 24.0 65
Show 12333-5505 TDS8433 AB 5 1.9 65
Show 12303-5555 JSP 537 242 1.0 66
Show 12425-5655 TDS8492 180 0.7 69
Show 12341-5657 BRT2808 171 4.7 70
Show 12333-5459 KOU 11 AB 67 2.5 71
Show 12333-5459 KOU 11 AC 169 3.4 71
Show 12430-5656 TDS8496 334 0.8 73
Show 12348-5447 TDS8445 166 0.5 75
Show 12470-5547 TDS8520 Aa,Ab 288 0.6 76
Show 12470-5547 R 208 AB 8 4.8 76
Show 12464-5629 HJ 4548 AB 166 51.1 77
Show 12464-5629 SHT 46 AC 151 4.1 77
Show 12464-5629 SHT 46 AD 41 7.4 77
Show 12464-5629 SHT 46 AE 223 8.6 77
Show 12421-5446 FIN 200 260 0.4 79
Show 12287-5557 TOB 77 343 24.4 79
Show 12285-5538 JSP 916 156 5.8 84
Show 12356-5435 RST2806 40 3.0 84
Show 12314-5659 RST2802 50 1.2 84
Show 12456-5653 TOB 120 294 26.0 84
Show 12286-5624 HDO 217 AB 348 24.2 85
Show 12286-5624 HDO 217 AC 336 47.5 85
Show 12287-5527 JNN 174 317 0.9 85
Show 12429-5441 TDS8494 173 0.6 86
Show 12448-5449 RST2812 AB 61 1.8 88
Show 12481-5626 JSP 558 65 0.6 89
Show 12274-5554 JSP 534 339 2.5 91
Show 12354-5724 TDS8449 172 2.8 91

 
 
WDS 12381-5556 : COMPONENTS
 
 
  A B
B pa=180.3°
sep=1.86"
 
C pa=205.6°
sep=3.55"
pa=228.8°
sep=2.02"
 
 
12381-5556 A
 
 
Name HD 109808 Coord arcsec 2000 123807.29-555552.3 Mag 7.14 Spectral class A1/2V (white)
PmRA -32.00 PmDE -9.0 SAO 240104 HIP 61639
Tycho2 8650-02453-1 HD 109808 GC 17200 CP CP-55 5161
Tycho2
Tycho2 8650-02453-1 Pflag P RAmdeg 189.53023293 DEmdeg -55.93123290
PmRA -32.3 PmDE -9.0 E RAmdeg 4 E DEmdeg 4
E pmRA 2.4 E pmDE 2.3 EpRAm 1991.48 EpDEm 1991.47
Num 5 Q RAmdeg 0.2 Q DEmdeg 1.0 Q pmRA 0.3
Q pmDE 0.9 BTmag 7.225 E BTmag 0.014 VTmag 7.135
E VTmag 0.010 Prox 19 TYC T HIP 61639
CCDM A RAdeg 189.53037056 DEdeg -55.93118667 EpRA 1990 1.56
EpDE 1990 1.55 E RAdeg 3.6 E DEdeg 3.5 Posflg D
Corr -0.2
SAO
SAO 240104 DelFlag RA1950 PmRA1950 -0.0036
DE1950 PmDE1950 -0.002 Vmag 7 SpType A2
Double code Source 70 CatNum 17200 DM CP-55 5161
DMcomp BDsup HD 109808 M HD 0
GC 17200 RA1950rad 3.29562326 DE1950rad -0.97137867 PmRA2000 -0.0039
PmDE2000 0.002
Hipparcos
Catalog H HIP 61639 Proxy H RAhms 12 38 07.29
DEdms -55 55 52.3 Vmag 6.95 VarFlag R Vmag G
RAdeg 189.53 DEdeg -55.9312 AstroRef A Plx 9.05
CCDM 12381-5556 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 184 Rho 1.863 HD 109808 BD
CD CP CP-55 5161 Dm number -55 5161 VIred 0.17
SpType A1/A2V R SpType Coord arcsec 2000 123807.29-555552.3
Hipparcos 2
HIP 61639 Sn 15 So 3 Nc 2
RArad 3.3079291183 DErad -0.9761833513 Plx 9.01 PmRA -35.84
PmDE -13.15 E RArad 0.37 E DErad 0.47 E Plx 0.74
E pmRA 0.52 E pmDE 0.54 Hpmag 6.9805 E Hpmag 0.0008
SHp 0.011 VA 0 BV 0.15 E BV 0.015
VI 0.17
CCDM
Ccdm 12381-5556 RComp Comp A Note1
Note2 Discov num DRAs 1.31 DDEs 9.2
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.2 Sp A2 PmNote *
PmRA -32 PmDE -3 Dm number -55 5161 Cat1 CPD
Name2 240104 Cat2 SAO HD 109808 M HD
ADS BDS M ADS BDS N IDS IDS 12325S5523A
HIC 61639
 
 
12381-5556 B
 
 
Coord arcsec 2000 123807.29-555554.2 Mag 8.94 PmRA -32.00 PmDE -9.0
Tycho2 8650-02453-2 Calc delta mag 1.8 Calc coord yes
Tycho2
Tycho2 8650-02453-2 Pflag P RAmdeg 189.53023293 DEmdeg -55.93123290
PmRA -32.3 PmDE -9.0 E RAmdeg 4 E DEmdeg 4
E pmRA 2.4 E pmDE 2.3 EpRAm 1991.48 EpDEm 1991.47
Num 5 Q RAmdeg 0.2 Q DEmdeg 1.0 Q pmRA 0.3
Q pmDE 0.9 BTmag 9.776 E BTmag 0.021 VTmag 8.936
E VTmag 0.013 Prox 19 TYC T HIP 61639
CCDM B RAdeg 189.53031639 DEdeg -55.93170750 EpRA 1990 1.52
EpDE 1990 1.60 E RAdeg 9.4 E DEdeg 8.5 Posflg D
Corr -0.2
CCDM
Ccdm 12381-5556 RComp Comp B Note1
Note2 Discov num HLD 116 DRAs DDEs
R dRAs Year 1880 Theta 193 Rho 1.9
Obs 14 Vmag 9.0 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 12325S5523B
HIC 61639
 
 
12381-5556 C
 
 
Coord arcsec 2000 123807.11-555555.5 Mag 14.4 Calc delta mag 7.26 Calc coord yes