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Doubles in session


Current system
17443-7213
HDO 275
HD 159964


Nearby doubles
16' : 17477-7214
HEI 392

26' : 17388-7208
HJ 4954

27' : 17492-7227
TDT 520

27' : 17499-7221
UC 3420

34' : 17376-7201
UC 3378

40' : 17521-7232
KPP 403

56' : 17564-7219
B 2049

56' : 17401-7121
TDT 457

58' : 17552-7145
TDT 571

60' : 17559-7241
TSN 9

60' : 17573-7216
B 2420

64' : 17358-7124
B 2411

68' : 17582-7237
TDT 602

69' : 17566-7135
HEI 393

71' : 17427-7103
HEI 252

72' : 17408-7105
HEI 250

73' : 17402-7324
TDT 460

73' : 17478-7103
HEI 253

74' : 17570-7130
TDT 593

74' : 17288-7236
WFC 194

75' : 17281-7213
HEI 388

76' : 17341-7115
KPP4043

76' : 17514-7105
TVB 297

80' : 17269-7211
TDT 355

81' : 17285-7141
TDT 372

82' : 17378-7058
TDT 442



Selections
Full WDS
Binocular doubles
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.

17443-7213 HDO 275 (HD 159964)

 
 
17h 44m 19.81s -72° 13' 15.4" P.A. 63.00 sep 0.7 mag 6.85,8.11 Sp F7IV+F5V dist. 43.4 pc (141.57 l.y.)
 
 
Coord 2000 17443-7213 Discov num HDO 275 Comp Coord arcsec 2000 17 44 19.81 -72 13 15.4
Date first 1897 Date last 2019 Obs 35
Pa first 155 Pa last 62.8 P.A. Now (θ) 58.1°
Sep first 0.9 Sep last 0.697 Sep. Now (ρ) 0.762"
Mag pri 6.85 Mag sec 8.11 delta mag (ΔM) 1.26 Spectral class F7IV+F5V (yellow-white/yellow-white)
Pri motion ra +005 Sec motion ra +005
Pri motion dec +109 Sec motion dec +109
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 159964 Constellation Apus SAO 257525 HIP 86815
Tycho2 9297-00161-1 HD 159964 HR 6565 GC 23971
CP CP-72 2086 Distance 43.4 Distance ly 141.57
 
 
ORBITAL ELEMENTS
 
 
Period (P)98.6y Periastron (T)1986.76y Semi-major axis (a)0.629a
Eccentricity (e)0.319 Inclination (i)150.1° Longitude of periastron (ω)58.6°
Node (Ω)266.3° Notes ReferenceHrt2010a
Equinox2000 Last observation2009 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 120.8 0.517
2001 116.5 0.535
2002 112.5 0.553
2003 108.7 0.571
2004 105.2 0.587
2005 101.9 0.604
2006 98.7 0.619
2007 95.7 0.634
2008 92.8 0.648
2009 90.0 0.661
2010 87.3 0.673
2011 84.7 0.684
2012 82.3 0.695
2013 79.8 0.705
2014 77.5 0.714
2015 75.2 0.722
2016 72.9 0.730
2017 70.7 0.736
2018 68.5 0.742
2019 66.4 0.748
2020 64.3 0.752
2021 62.2 0.756
2022 60.1 0.759
2023 58.1 0.762
2024 56.0 0.764
2025 54.0 0.766
2026 52.0 0.767
2027 50.0 0.767
2028 48.0 0.767
2029 45.9 0.767
2030 43.9 0.766


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


 
  


wds17443-7213a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 17443-7213 HDO 275 (HD 159964) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Hrt2010a orb - Hartkopf, W.I. & Mason, B.D. 2010IAUDS.170....1H
Hrt2010a Inf. Circ. 170, 1, 2010
 
 
DISCOVERER
 
 
idgroup discov author
1 HDO Harvard Obs.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17443-7213 HDO 275 1991 28 170 0.4 6.85 8.11 F7IV+F5V NOD 174419.81-721315.4
17443-7213 HDO 275 2009 30 89 0.6 6.85 8.11 F7IV+F5V NOD 174419.81-721315.4
17443-7213 HDO 275 2014 31 77 0.7 6.85 8.11 F7IV F5V O 174419.81-721315.4
17443-7213 HDO 275 2015 32 73 0.7 6.85 8.11 F7IV+F5V O 174419.81-721315.4
17443-7213 HDO 275 2016 33 68 0.7 6.85 8.11 F7IV+F5V O 174419.81-721315.4
17443-7213 HDO 275 2018 34 66 0.7 6.85 8.11 F7IV+F5V O 174419.81-721315.4
17443-7213 HDO 275 2019 35 63 0.7 6.85 8.11 F7IV+F5V O 174419.81-721315.4

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

 
 
WDS 17443-7213 HDO 275 (HD 159964) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 17443-7213 HDO 275 (HD 159964) : MEASURES
 
 
No records found.

 
 
WDS 17443-7213 (HD 159964) : VIRTUAL EYEPIECE
 
 

17443-7213 HDO 275A mag 6.85 Sp F7IV 17443-7213 HDO 275B sep 0.4 P.A. 30.70 mag 8.11 Sp F5V 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 17443-7213 (HD 159964) : ALADIN DSS IMAGE @ 17h 44m 19.81s -72° 13' 15.4"
 
 
 
 
WDS 17443-7213 HDO 275 (HD 159964) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

17443-7213 HDO 275 distance=1' 17477-7214 HEI 392 distance=16' 17388-7208 HJ 4954 distance=26' 17492-7227 TDT 520 distance=27' 17499-7221 UC 3420 distance=27' 17376-7201 UC 3378 distance=34' 17521-7232 KPP 403 distance=40' 17564-7219 B 2049 distance=56' 17401-7121 TDT 457 distance=56' 17552-7145 TDT 571 distance=58' 17559-7241 TSN 9 distance=60' 17573-7216 B 2420 distance=60' 17358-7124 B 2411 distance=64' 17582-7237 TDT 602 distance=68' 17566-7135 HEI 393 distance=69' 17427-7103 HEI 252 distance=71' 17408-7105 HEI 250 distance=72' 17402-7324 TDT 460 distance=73' 17478-7103 HEI 253 distance=73' 17570-7130 TDT 593 distance=74' 17288-7236 WFC 194 distance=74' 17281-7213 HEI 388 distance=75' 17341-7115 KPP4043 distance=76' 17514-7105 TVB 297 distance=76' 17269-7211 TDT 355 distance=80' 17285-7141 TDT 372 distance=81' 17378-7058 TDT 442 distance=82' 17312-7310 B 2047 distance=82' 17515-7059 UC 3430 distance=82' 17596-7132 HEI 394 distance=83' 17290-7131 TDT 377 distance=84' 17531-7101 GAI9014AB distance=85' 17531-7101 GAI9014AC distance=85' 17575-7115 GLI 238 distance=86' 17296-7122 TDT 379 distance=86' 17315-7112 B 2838 distance=86' 17566-7325 TDT 589 distance=90' 18004-7314 UC 3470 distance=94' 17303-7107 B 2409 distance=94' 17301-7107 TDT 384 distance=95' 17308-7329 HEI 390 distance=97' 18018-7111 TDT 645 distance=104' 18025-7320 UC 3479AB distance=105' 17258-7114 B 2835 distance=106' 17426-7400 TDT 474 distance=107' 17348-7034 HEI 248A,BC distance=109' 17348-7034 HEI 248BC distance=109' 17464-7020 I 610 distance=114' 17348-7400 HEI 391 distance=115' 17559-7032 HJ 4976 distance=116' 17332-7029 TDT 405 distance=118' 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 17443-7213 HDO 275 63 0.7 1
Show 17477-7214 HEI 392 129 0.9 16
Show 17388-7208 HJ 4954 306 14.7 26
Show 17492-7227 TDT 520 336 0.4 27
Show 17499-7221 UC 3420 17 20.8 27
Show 17376-7201 UC 3378 275 28.0 34
Show 17521-7232 KPP 403 142 4.8 40
Show 17564-7219 B 2049 1 1.0 56
Show 17401-7121 TDT 457 104 2.3 56
Show 17552-7145 TDT 571 198 0.4 58
Show 17559-7241 TSN 9 274 102.2 60
Show 17573-7216 B 2420 222 0.6 60
Show 17358-7124 B 2411 344 0.4 64
Show 17582-7237 TDT 602 186 0.5 68
Show 17566-7135 HEI 393 332 0.2 69
Show 17427-7103 HEI 252 123 0.2 71
Show 17408-7105 HEI 250 220 1.3 72
Show 17402-7324 TDT 460 250 2.4 73
Show 17478-7103 HEI 253 346 0.8 73
Show 17570-7130 TDT 593 283 1.2 74
Show 17288-7236 WFC 194 75 7.6 74
Show 17281-7213 HEI 388 314 1.2 75
Show 17341-7115 KPP4043 235 8.0 76
Show 17514-7105 TVB 297 209 5.8 76
Show 17269-7211 TDT 355 48 0.5 80
Show 17285-7141 TDT 372 122 2.6 81
Show 17378-7058 TDT 442 194 0.4 82
Show 17312-7310 B 2047 237 1.0 82
Show 17515-7059 UC 3430 354 74.6 82
Show 17596-7132 HEI 394 127 1.5 83
Show 17290-7131 TDT 377 206 0.5 84
Show 17531-7101 GAI9014 AB 328 1.2 85
Show 17531-7101 GAI9014 AC 173 78.9 85
Show 17575-7115 GLI 238 5 37.5 86
Show 17296-7122 TDT 379 24 1.2 86
Show 17315-7112 B 2838 40 12.6 86
Show 17566-7325 TDT 589 204 0.5 90
Show 18004-7314 UC 3470 18 26.3 94
Show 17303-7107 B 2409 120 1.6 94
Show 17301-7107 TDT 384 175 1.7 95
Show 17308-7329 HEI 390 272 0.7 97
Show 18018-7111 TDT 645 242 2.3 104
Show 18025-7320 UC 3479 AB 176 66.9 105
Show 17258-7114 B 2835 38 5.1 106
Show 17426-7400 TDT 474 335 0.5 107
Show 17348-7034 HEI 248 A,BC 357 28.6 109
Show 17348-7034 HEI 248 BC 264 1.1 109
Show 17464-7020 I 610 71 2.4 114
Show 17348-7400 HEI 391 55 0.2 115
Show 17559-7032 HJ 4976 53 24.0 116
Show 17332-7029 TDT 405 39 0.6 118

 
 
WDS 17443-7213 : COMPONENTS
 
 
  A
B pa=30.7°
sep=0.37"
 
 
17443-7213 A
 
 
Componente originario normalizzato AB Name HD 159964 Coord arcsec 2000 174419.81-721315.4 Mag 6.85
Spectral class F7IV (yellow-white) PmRA 5.00 PmDE 109.0 SAO 257525
HIP 86815 Tycho2 9297-00161-1 HD 159964 HR 6565
GC 23971 CP CP-72 2086
Tycho2
Tycho2 9297-00161-1 Pflag RAmdeg 266.08254294 DEmdeg -72.22097190
PmRA 5.3 PmDE 109.0 E RAmdeg 4 E DEmdeg 3
E pmRA 1.4 E pmDE 1.3 EpRAm 1991.37 EpDEm 1991.60
Num 14 Q RAmdeg 1.8 Q DEmdeg 0.7 Q pmRA 1.6
Q pmDE 0.8 BTmag 7.091 E BTmag 0.015 VTmag 6.581
E VTmag 0.009 Prox 999 TYC T HIP 86815
CCDM AB RAdeg 266.08250250 DEdeg -72.22122139 EpRA 1990 1.59
EpDE 1990 1.76 E RAdeg 3.6 E DEdeg 3.4 Posflg P
Corr 0.0
SAO
SAO 257525 DelFlag RA1950 PmRA1950 0.002
DE1950 PmDE1950 0.113 Vmag 6.7 SpType F5
Double code Source 70 CatNum 23971 DM CP-72 2086
DMcomp BDsup HD 159964 M HD 0
GC 23971 RA1950rad 4.61773313 DE1950rad -1.26012373 PmRA2000 -0.0007
PmDE2000 0.113
Hipparcos
Catalog H HIP 86815 Proxy H RAhms 17 44 19.80
DEdms -72 13 16.3 Vmag 6.51 VarFlag R Vmag H
RAdeg 266.082 DEdeg -72.2212 AstroRef A Plx 22.67
CCDM 17443-7213 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 171 Rho 0.393 HD 159964 BD
CD CP CP-72 2086 Dm number -72 2086 VIred 0.54
SpType F8V... R SpType Coord arcsec 2000 174419.80-721316.3
Hipparcos 2
HIP 86815 Sn 15 So 3 Nc 2
RArad 4.6440154105 DErad -1.2604975366 Plx 23.04 PmRA -21.14
PmDE 109.69 E RArad 0.28 E DErad 0.49 E Plx 0.62
E pmRA 0.3 E pmDE 0.61 Hpmag 6.6101 E Hpmag 0.0008
SHp 0.009 VA 0 BV 0.472 E BV 0.006
VI 0.54
CCDM
Ccdm 17443-7213 RComp Comp A Note1
Note2 Discov num DRAs 1.63 DDEs -15.3
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.3 Sp F5 PmNote *
PmRA 4 PmDE 112 Dm number -72 2086 Cat1 CPD
Name2 257525 Cat2 SAO HD 159964 M HD
ADS BDS M ADS BDS N IDS IDS 17323S7210A
HIC 86815
 
 
17443-7213 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 174419.85-721315.1 Mag 8.11 Spectral class F5V (yellow-white)
PmRA 5.00 PmDE 109.0 Calc delta mag 1.26 Calc coord yes
CCDM
Ccdm 17443-7213 RComp Comp B Note1 *
Note2 Discov num HDO 275 DRAs DDEs
R dRAs Year 1959 Theta 336 Rho 0.6
Obs 14 Vmag 7.6 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 17323S7210B
HIC 86815