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Current system
17541-4821
B 1870
HD 162551


Nearby doubles
8' : 17545-4814
TDT 565

24' : 17520-4809
TDT 545

25' : 17520-4807
TDT 544

26' : 17516-4811
I 617

27' : 17555-4759
B 1873

36' : 17505-4817
HJ 4982

42' : 17560-4858
KPP1457

42' : 17509-4753
TDT 532

44' : 17502-4801
B 1869

54' : 17518-4732
WFC 199

54' : 17487-4815
RSS 462

57' : 17498-4744
RST 950

61' : 17584-4904
CPO 567

64' : 17594-4746
I 110

67' : 17512-4921
RST 951

68' : 18003-4753
BRT1008

69' : 17589-4732
CPO 569

76' : 17595-4913
NZO 85

77' : 17467-4801
B 1866

78' : 17506-4930
B 2416

80' : 18020-4828
B 2427

83' : 17539-4658
RST 953

86' : 17467-4738
B 2843AB

87' : 17589-4709
TDT 609

88' : 17525-4947
TDT 551

89' : 17454-4840
SKF1056



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

17541-4821 B 1870 (HD 162551)

 
 
17h 54m 04.21s -48° 20' 30.7" P.A. 187.00 sep 0.1 mag 9.20,9.40 Sp F2V dist. 257.07 pc (838.56 l.y.)
 
 
Coord 2000 17541-4821 Discov num B  1870 Comp Coord arcsec 2000 17 54 04.21 -48 20 30.7
Date first 1930 Date last 2021 Obs 12
Pa first 144 Pa last 186.9 P.A. Now (θ) 182.7°
Sep first 0.2 Sep last 0.102 Sep. Now (ρ) 0.105"
Mag pri 9.20 Mag sec 9.40 delta mag (ΔM) 0.2 Spectral class F2V (yellow-white)
Pri motion ra +001 Sec motion ra
Pri motion dec -060 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 162551 Constellation Ara SAO 228523 HIP 87635
Tycho2 8348-00735-1 Gaia DR2 5947703426280395264 HD 162551 CD CD-4812133
CP CP-48 9568 Distance 257.07 Distance ly 838.56
 
 
ORBITAL ELEMENTS
 
 
Period (P)111.3y± 6.7 Periastron (T)1999.76y± 0.75 Semi-major axis (a)0.153a± 0.008
Eccentricity (e)0.487± 0.024 Inclination (i)126.9°± 2.3 Longitude of periastron (ω)151.6°± 2.4
Node (Ω)110.7°± 3.5 Notes ReferenceTok2019c
Equinox Last observation2018 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 306.9 0.074
2001 299.9 0.077
2002 293.6 0.081
2003 287.6 0.083
2004 282.0 0.084
2005 276.4 0.085
2006 270.9 0.085
2007 265.5 0.085
2008 259.9 0.085
2009 254.4 0.084
2010 248.7 0.083
2011 242.9 0.083
2012 237.2 0.083
2013 231.4 0.083
2014 225.6 0.083
2015 220.0 0.084
2016 214.5 0.086
2017 209.2 0.087
2018 204.1 0.090
2019 199.3 0.092
2020 194.7 0.095
2021 190.4 0.098
2022 186.4 0.101
2023 182.7 0.105
2024 179.2 0.108
2025 175.9 0.112
2026 172.9 0.116
2027 170.0 0.120
2028 167.4 0.124
2029 164.9 0.128
2030 162.6 0.133


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.


 
  


wds17541-4821a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 17541-4821 B 1870 (HD 162551) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Tok2019c St j Tokovinin, A., Mason, B.D., Mendez, R.A., Horch, E.P. & Briceno, C. 2019AJ....158...48T
Tok2019c +orb AJ 158, 48, 2019
 
 
DISCOVERER
 
 
idgroup discov author
1 B van den Bos, W.H.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17541-4821 B 1870 1989 5 57 0.1 9.20 9.40 F2V 175404.21-482030.7
17541-4821 B 1870 2009 7 72 0.1 9.20 9.40 F2V 175404.21-482030.7
17541-4821 B 1870 2015 8 218 0.1 9.20 9.40 F2V 175404.21-482030.7
17541-4821 B 1870 2017 9 207 0.1 9.20 9.40 F2V 175404.21-482030.7
17541-4821 B 1870 2018 10 201 0.1 9.20 9.40 F2V 175404.21-482030.7
17541-4821 B 1870 2019 11 196 0.1 9.20 9.40 F2V O 175404.21-482030.7
17541-4821 B 1870 2021 12 187 0.1 9.20 9.40 F2V O 175404.21-482030.7

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

 
 
WDS 17541-4821 B 1870 (HD 162551) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 17541-4821 B 1870 (HD 162551) : MEASURES
 
 
No records found.

 
 
WDS 17541-4821 (HD 162551) : VIRTUAL EYEPIECE
 
 

17541-4821 B 1870A mag 9.2 Sp F2V 17541-4821 B 1870B sep 0.1 P.A. 184.60 mag 9.4 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 17541-4821 (HD 162551) : ALADIN DSS IMAGE @ 17h 54m 04.21s -48° 20' 30.7"
 
 
 
 
WDS 17541-4821 B 1870 (HD 162551) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

17541-4821 B 1870 distance=0' 17545-4814 TDT 565 distance=8' 17520-4809 TDT 545 distance=24' 17520-4807 TDT 544 distance=25' 17516-4811 I 617 distance=26' 17555-4759 B 1873 distance=27' 17505-4817 HJ 4982 distance=36' 17560-4858 KPP1457 distance=42' 17509-4753 TDT 532 distance=42' 17502-4801 B 1869 distance=44' 17518-4732 WFC 199 distance=54' 17487-4815 RSS 462 distance=54' 17498-4744 RST 950 distance=57' 17584-4904 CPO 567 distance=61' 17594-4746 I 110 distance=64' 17512-4921 RST 951 distance=67' 18003-4753 BRT1008 distance=68' 17589-4732 CPO 569 distance=69' 17595-4913 NZO 85 distance=76' 17467-4801 B 1866 distance=77' 17506-4930 B 2416 distance=78' 18020-4828 B 2427 distance=80' 17539-4658 RST 953 distance=83' 17467-4738 B 2843AB distance=86' 17589-4709 TDT 609 distance=87' 17467-4738 B 2843BC distance=87' 17525-4947 TDT 551 distance=88' 17454-4840 SKF1056 distance=89' 17458-4749 RST 947 distance=89' 17451-4816 CPO 551 distance=90' 18018-4907 TDT 644 distance=90' 17452-4805 TDT 487 distance=91' 17532-4650 SKF 458 distance=92' 17449-4809 I 1602 distance=93' 17505-4655 CPO 556 distance=94' 17457-4915 RST 946 distance=100' 17461-4920 BRT 991 distance=100' 17537-5002 I 1344 distance=102' 17563-5003 TDT 582 distance=105' 17445-4904 RST 945 distance=105' 17500-4958 TDT 525 distance=106' 18047-4819 BRT1015 distance=107' 17457-4715 B 2414 distance=107' 17515-5007 HDS2519 distance=110' 17445-4726 RSS 459 distance=111' 17439-4735 CPO 550 distance=111' 17558-4629 TDT 578 distance=113' 17575-4633 SKF1057 distance=114' 17569-5011 BRT1005 distance=114' 18024-4700 I 1349 distance=117' 17583-5010 HDS2533 distance=117' 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 17541-4821 B 1870 187 0.1
Show 17545-4814 TDT 565 280 0.4 8
Show 17520-4809 TDT 545 33 0.5 24
Show 17520-4807 TDT 544 277 0.5 25
Show 17516-4811 I 617 263 2.0 26
Show 17555-4759 B 1873 342 0.2 27
Show 17505-4817 HJ 4982 57 40.6 36
Show 17560-4858 KPP1457 28 11.0 42
Show 17509-4753 TDT 532 134 0.4 42
Show 17502-4801 B 1869 29 1.1 44
Show 17518-4732 WFC 199 27 11.9 54
Show 17487-4815 RSS 462 163 20.0 54
Show 17498-4744 RST 950 154 1.6 57
Show 17584-4904 CPO 567 51 3.8 61
Show 17594-4746 I 110 124 1.5 64
Show 17512-4921 RST 951 119 2.5 67
Show 18003-4753 BRT1008 318 4.2 68
Show 17589-4732 CPO 569 339 4.5 69
Show 17595-4913 NZO 85 82 2.4 76
Show 17467-4801 B 1866 109 0.6 77
Show 17506-4930 B 2416 97 8.4 78
Show 18020-4828 B 2427 296 0.7 80
Show 17539-4658 RST 953 62 3.3 83
Show 17467-4738 B 2843 AB 336 92.9 86
Show 17589-4709 TDT 609 316 3.5 87
Show 17467-4738 B 2843 BC 157 1.8 87
Show 17525-4947 TDT 551 114 0.5 88
Show 17454-4840 SKF1056 184 17.9 89
Show 17458-4749 RST 947 315 0.3 89
Show 17451-4816 CPO 551 274 4.9 90
Show 18018-4907 TDT 644 325 1.2 90
Show 17452-4805 TDT 487 22 0.7 91
Show 17532-4650 SKF 458 11.3 92
Show 17449-4809 I 1602 305 0.2 93
Show 17505-4655 CPO 556 66 5.3 94
Show 17457-4915 RST 946 321 1.9 100
Show 17461-4920 BRT 991 27 5.0 100
Show 17537-5002 I 1344 163 0.8 102
Show 17563-5003 TDT 582 41 2.3 105
Show 17445-4904 RST 945 47 2.6 105
Show 17500-4958 TDT 525 284 0.4 106
Show 18047-4819 BRT1015 186 4.4 107
Show 17457-4715 B 2414 181 0.5 107
Show 17515-5007 HDS2519 257 0.2 110
Show 17445-4726 RSS 459 131 17.2 111
Show 17439-4735 CPO 550 189 4.7 111
Show 17558-4629 TDT 578 312 0.5 113
Show 17575-4633 SKF1057 297 30.7 114
Show 17569-5011 BRT1005 155 6.2 114
Show 18024-4700 I 1349 242 3.2 117
Show 17583-5010 HDS2533 181 0.2 117

 
 
WDS 17541-4821 : COMPONENTS
 
 
  A
B pa=184.6°
sep=0.10"
 
 
17541-4821 A
 
 
Componente originario normalizzato AB Name HD 162551 Coord arcsec 2000 175404.21-482030.7 Mag 9.2
Spectral class F2V (yellow-white) PmRA 1.00 PmDE -60.0 SAO 228523
HIP 87635 Tycho2 8348-00735-1 HD 162551 CD CD-4812133
CP CP-48 9568
Tycho2
Tycho2 8348-00735-1 Pflag RAmdeg 268.51754586 DEmdeg -48.34197805
PmRA -2.3 PmDE -45.9 E RAmdeg 5 E DEmdeg 7
E pmRA 1.1 E pmDE 1.1 EpRAm 1991.33 EpDEm 1990.78
Num 9 Q RAmdeg 1.6 Q DEmdeg 1.1 Q pmRA 1.5
Q pmDE 1.1 BTmag 8.993 E BTmag 0.017 VTmag 8.539
E VTmag 0.012 Prox 623 TYC T HIP 87635
CCDM RAdeg 268.51755389 DEdeg -48.34187389 EpRA 1990 1.86
EpDE 1990 1.84 E RAdeg 5.2 E DEdeg 7.3 Posflg
Corr 0.2
SAO
SAO 228523 DelFlag RA1950 PmRA1950 0.0019
DE1950 PmDE1950 -0.034 Vmag 8.5 SpType F2
Double code Source 48 CatNum 16820 DM CP-48 9568
DMcomp BDsup HD 162551 M HD 0
GC RA1950rad 4.66988009 DE1950rad -0.84354599 PmRA2000 0.0018
PmDE2000 -0.036
Hipparcos
Catalog H HIP 87635 Proxy RAhms 17 54 04.21
DEdms -48 20 30.7 Vmag 8.44 VarFlag R Vmag H
RAdeg 268.518 DEdeg -48.3419 AstroRef Plx 5.47
CCDM 17541-4820 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual S M HIP
Theta Rho HD 162551 BD
CD CD-4812133 CP CP-48 9568 Dm number -4812133 VIred 0.51
SpType F2V R SpType Coord arcsec 2000 175404.21-482030.7
Hipparcos 2
HIP 87635 Sn 5 So 0 Nc 1
RArad 4.6865153605 DErad -0.8437247274 Plx 3.89 PmRA -0.22
PmDE -46.64 E RArad 0.92 E DErad 0.56 E Plx 1.07
E pmRA 1.17 E pmDE 0.58 Hpmag 8.5415 E Hpmag 0.002
SHp 0.021 VA 0 BV 0.442 E BV 0.012
VI 0.51
 
 
17541-4821 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 175404.21-482030.8 Mag 9.4 Calc delta mag 0.2
Calc coord yes