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Current system
17103-4644
DUN 213
HD 154873


Nearby doubles
15' : 17095-4632
B 2404AB

21' : 17086-4654
KPP4027

21' : 17087-4633
RST 901

30' : 17123-4622
RST 904

33' : 17090-4713
RST 902

33' : 17132-4630
BRT 950

35' : 17113-4611
RST5541

40' : 17123-4611
I 588

40' : 17141-4651
BRT 952

44' : 17090-4603
BRT 947

50' : 17069-4718
RST 896

50' : 17066-4715
RST 895

53' : 17066-4609
B 893

54' : 17139-4605
BRT 951

62' : 17051-4714
HJ 4913

68' : 17154-4727
RST 911

73' : 17037-4710
HDO 264

73' : 17035-4627
B 1843

74' : 17170-4617
CPO 516

75' : 17134-4752
RST 905

76' : 17082-4757
RST 898

77' : 17029-4645
COO 207

78' : 17065-4751
KPP4024

80' : 17164-4735
B 1331

80' : 17068-4756
LDS 584

81' : 17137-4757
RST 906



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

17103-4644 DUN 213 (HD 154873)

 
 
17h 10m 20.84s -46° 44' 18.3" P.A. 168.00 sep 8.3 mag 6.96,8.26 Sp B1I+B1.5V dist. 462.96 pc (1510.18 l.y.)
 
 
Coord 2000 17103-4644 Discov num DUN 213 Comp Coord arcsec 2000 17 10 20.84 -46 44 18.3
Date first 1834 Date last 2016 Obs 32
Pa first 168 Pa last 167.9 P.A. Now (θ) 167.9°
Sep first 5.0 Sep last 8.25 Sep. Now (ρ) 8.25"
Mag pri 6.96 Mag sec 8.26 delta mag (ΔM) 1.3 Spectral class B1I+B1.5V (blue-white/blue-white)
Pri motion ra +002 Sec motion ra +002
Pri motion dec -005 Sec motion dec -005
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 154873 Constellation Ara SAO 227682 HIP 84010
Tycho2 8328-00352-1 Gaia DR2 5950941488064653056 HD 154873 GC 23138
CD CD-4611258 CP CP-46 8423 Distance 462.96 Distance ly 1510.18
 
 
WDS 17103-4644 DUN 213 (HD 154873) : NOTES
 
 
No records found.

 
 
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
17103-4644 DUN 213 2000 27 168 8.2 6.96 8.26 B1I B1.5V D 171020.84-464418.3
17103-4644 DUN 213 2013 29 168 8.2 6.96 8.26 B1I B1.5V D 171020.84-464418.3
17103-4644 DUN 213 2016 30 168 8.3 6.96 8.26 B1I+B1.5V 171020.84-464418.3

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

 
 
WDS 17103-4644 DUN 213 (HD 154873) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 17103-4644 DUN 213 (HD 154873) : MEASURES
 
 
No records found.

 
 
WDS 17103-4644 (HD 154873) : VIRTUAL EYEPIECE
 
 

17103-4644 DUN 213A mag 6.96 Sp B1I 17103-4644 DUN 213B sep 8.2 P.A. 171.60 mag 8.26 Sp B1.5V virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 17103-4644 (HD 154873) : ALADIN DSS IMAGE @ 17h 10m 20.84s -46° 44' 18.3"
 
 
 
 
WDS 17103-4644 DUN 213 (HD 154873) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

17103-4644 DUN 213 distance=0' 17095-4632 B 2404AB distance=15' 17095-4632 SIN 100AC distance=15' 17086-4654 KPP4027 distance=21' 17087-4633 RST 901 distance=21' 17123-4622 RST 904 distance=30' 17090-4713 RST 902 distance=33' 17132-4630 BRT 950 distance=33' 17113-4611 RST5541 distance=35' 17123-4611 I 588 distance=40' 17141-4651 BRT 952 distance=40' 17090-4603 BRT 947 distance=44' 17069-4718 RST 896 distance=50' 17066-4715 RST 895 distance=50' 17066-4609 B 893 distance=53' 17139-4605 BRT 951 distance=54' 17051-4714 HJ 4913 distance=62' 17154-4727 RST 911 distance=68' 17037-4710 HDO 264 distance=73' 17035-4627 B 1843 distance=73' 17170-4617 CPO 516 distance=74' 17134-4752 RST 905 distance=75' 17082-4757 RST 898 distance=76' 17029-4645 COO 207 distance=77' 17065-4751 KPP4024 distance=78' 17164-4735 B 1331 distance=80' 17068-4756 LDS 584 distance=80' 17137-4757 RST 906 distance=81' 17025-4645 BRT 941 distance=81' 17135-4527 B 900 distance=84' 17146-4528 COO 210AB distance=89' 17181-4605 HJ 4929 distance=90' 17191-4638 BSO 13Ba,Bb distance=90' 17191-4638 BSO 13AB distance=90' 17191-4638 BSO 13AC distance=90' 17191-4638 BSO 13AD distance=90' 17063-4524 LDS 583 distance=91' 17127-4814 SKF1052 distance=93' 17037-4542 TDT 196 distance=93' 17184-4603 DON 830 distance=94' 17014-4659 CPO 509 distance=94' 17012-4638 RST 893 distance=95' 17007-4646 LDS 579 distance=100' 17028-4540 BRT 942 distance=101' 17170-4531 BRT 954 distance=102' 17004-4646 DAM 91 distance=103' 17200-4610 HJ 4936 distance=106' 17044-4815 VSP 49 distance=110' 16597-4637 RST 891 distance=110' 17099-4453 BRT 949 distance=112' 17157-4504 BRT 953 distance=115' 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 17103-4644 DUN 213 168 8.3
Show 17095-4632 B 2404 AB 36 8.2 15
Show 17095-4632 SIN 100 AC 352 16.8 15
Show 17086-4654 KPP4027 94 42.5 21
Show 17087-4633 RST 901 38 0.2 21
Show 17123-4622 RST 904 322 1.3 30
Show 17090-4713 RST 902 351 0.3 33
Show 17132-4630 BRT 950 3 4.3 33
Show 17113-4611 RST5541 91 0.1 35
Show 17123-4611 I 588 156 2.2 40
Show 17141-4651 BRT 952 226 4.8 40
Show 17090-4603 BRT 947 245 2.9 44
Show 17069-4718 RST 896 161 1.5 50
Show 17066-4715 RST 895 1 0.3 50
Show 17066-4609 B 893 17 0.2 53
Show 17139-4605 BRT 951 163 4.0 54
Show 17051-4714 HJ 4913 228 3.8 62
Show 17154-4727 RST 911 15 4.4 68
Show 17037-4710 HDO 264 247 6.3 73
Show 17035-4627 B 1843 225 2.3 73
Show 17170-4617 CPO 516 337 4.7 74
Show 17134-4752 RST 905 113 1.3 75
Show 17082-4757 RST 898 102 1.7 76
Show 17029-4645 COO 207 47 3.6 77
Show 17065-4751 KPP4024 51 15.2 78
Show 17164-4735 B 1331 36 1.0 80
Show 17068-4756 LDS 584 325 37.3 80
Show 17137-4757 RST 906 54 2.5 81
Show 17025-4645 BRT 941 84 5.5 81
Show 17135-4527 B 900 280 0.5 84
Show 17146-4528 COO 210 AB 340 5.5 89
Show 17181-4605 HJ 4929 226 10.6 90
Show 17191-4638 BSO 13 Ba,Bb 235 0.1 90
Show 17191-4638 BSO 13 AB 259 10.6 90
Show 17191-4638 BSO 13 AC 267 144.6 90
Show 17191-4638 BSO 13 AD 290 94.7 90
Show 17063-4524 LDS 583 268 276.3 91
Show 17127-4814 SKF1052 300 7.6 93
Show 17037-4542 TDT 196 136 0.8 93
Show 17184-4603 DON 830 98 2.3 94
Show 17014-4659 CPO 509 320 4.3 94
Show 17012-4638 RST 893 209 0.3 95
Show 17007-4646 LDS 579 62 43.5 100
Show 17028-4540 BRT 942 138 3.2 101
Show 17170-4531 BRT 954 53 3.5 102
Show 17004-4646 DAM 91 332 10.7 103
Show 17200-4610 HJ 4936 76 7.4 106
Show 17044-4815 VSP 49 105 0.1 110
Show 16597-4637 RST 891 47 0.4 110
Show 17099-4453 BRT 949 33 5.0 112
Show 17157-4504 BRT 953 304 6.5 115

 
 
WDS 17103-4644 : COMPONENTS
 
 
  A
B pa=171.6°
sep=8.15"
 
 
17103-4644 A
 
 
Componente originario normalizzato AB Name HD 154873 Coord arcsec 2000 171020.84-464418.3 Mag 6.96
Spectral class B1I (blue-white) PmRA 2.00 PmDE -5.0 SAO 227682
HIP 84010 Tycho2 8328-00352-1 HD 154873 GC 23138
CD CD-4611258 CP CP-46 8423
Tycho2
Tycho2 8328-00352-1 Pflag RAmdeg 257.58684118 DEmdeg -46.73840673
PmRA 3.8 PmDE -3.6 E RAmdeg 4 E DEmdeg 5
E pmRA 1.8 E pmDE 1.8 EpRAm 1991.67 EpDEm 1991.35
Num 7 Q RAmdeg 1.8 Q DEmdeg 1.4 Q pmRA 1.8
Q pmDE 1.5 BTmag 7.211 E BTmag 0.015 VTmag 6.963
E VTmag 0.011 Prox 82 TYC T HIP 84010
CCDM A RAdeg 257.58682861 DEdeg -46.73839806 EpRA 1990 1.76
EpDE 1990 1.47 E RAdeg 4.1 E DEdeg 4.8 Posflg
Corr 0.0
SAO
SAO 227682 DelFlag RA1950 PmRA1950 -0.0034
DE1950 PmDE1950 -0.003 Vmag 7 SpType B2
Double code Source 70 CatNum 23138 DM CD-4611258
DMcomp A BDsup HD 154873 M HD 0
GC 23138 RA1950rad 4.47951034 DE1950rad -0.81465457 PmRA2000 -0.0035
PmDE2000 -0.004
Hipparcos
Catalog H HIP 84010 Proxy H RAhms 17 10 20.84
DEdms -46 44 18.2 Vmag 6.73 VarFlag R Vmag G
RAdeg 257.587 DEdeg -46.7384 AstroRef A Plx 1.46
CCDM 17103-4644 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 167 Rho 8.161 HD 154873 BD
CD CD-4611258 CP CP-46 8423 Dm number -4611258 VIred 0.33
SpType B1Ib R SpType Coord arcsec 2000 171020.84-464418.2
Hipparcos 2
HIP 84010 Sn 15 So 3 Nc 2
RArad 4.4957382523 DErad -0.8157389496 Plx 2.16 PmRA 1.47
PmDE -4.83 E RArad 0.6 E DErad 0.49 E Plx 0.72
E pmRA 0.72 E pmDE 0.57 Hpmag 6.773 E Hpmag 0.0018
SHp 0.01 VA 0 BV 0.287 E BV 0.004
VI 0.33
CCDM
Ccdm 17103-4644 RComp Comp A Note1
Note2 Discov num DRAs 2.86 DDEs -18.0
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.2 Sp B2 PmNote *
PmRA 4 PmDE 1 Dm number -4611258 Cat1 CD
Name2 227682 Cat2 SAO HD 154873 M HD
ADS BDS M ADS BDS N IDS IDS 17029S4637A
HIC 84010
 
 
17103-4644 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 171020.96-464426.4 Mag 8.26 Spectral class B1.5V (blue-white)
PmRA 2.00 PmDE -5.0 Tycho2 8328-01480-1 Calc delta mag 1.3
Calc coord yes
Tycho2
Tycho2 8328-01480-1 Pflag RAmdeg 257.58754941 DEmdeg -46.74063755
PmRA 1.6 PmDE -4.5 E RAmdeg 7 E DEmdeg 9
E pmRA 1.8 E pmDE 1.8 EpRAm 1991.50 EpDEm 1991.13
Num 6 Q RAmdeg 1.1 Q DEmdeg 0.9 Q pmRA 1.1
Q pmDE 0.9 BTmag 8.543 E BTmag 0.018 VTmag 8.261
E VTmag 0.015 Prox 82 TYC T HIP 84010
CCDM B RAdeg 257.58754389 DEdeg -46.74062694 EpRA 1990 1.75
EpDE 1990 1.52 E RAdeg 7.0 E DEdeg 8.6 Posflg
Corr 0.2
CCDM
Ccdm 17103-4644 RComp Comp B Note1
Note2 Discov num DUN 213 DRAs 3.04 DDEs -25.8
R dRAs 91 Year 1836 Theta 167 Rho 8.1
Obs 13 Vmag 8.7 Sp PmNote *
PmRA 2 PmDE -1 Dm number Cat1
Name2 227683 Cat2 SAO HD M HD
ADS BDS M ADS BDS N IDS IDS 17029S4637B
HIC 84010