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Current system
17420+1557
BU 1251 AB
HD 160910


Nearby doubles
26' : 17403+1553
TVB 296

30' : 17433+1534
KPP4055

34' : 17411+1628
A 2091

35' : 17396+1555
J 455

35' : 17444+1600
LSC 75

51' : 17428+1646
BPMA 51

53' : 17456+1553
HU 1287

54' : 17411+1505
UC 3382AB

56' : 17384+1539
GWP2728

64' : 17376+1556
BPM 691

65' : 17382+1522
TOB 263

66' : 17388+1643
BPM 692

69' : 17375+1616
HEI 249

70' : 17439+1455
J 2115

71' : 17421+1707
LDS1001

76' : 17457+1650
A 2092

78' : 17433+1441
BPM 695

81' : 17358+1537
OL 196

84' : 17478+1557
TOB 268AB

85' : 17434+1435
UC 3391

86' : 17478+1546
TOB 267

87' : 17478+1619
HEI 254

88' : 17429+1724
TOB 266

91' : 17483+1547
J 753AB

93' : 17472+1502
HU 1288

94' : 17477+1641
UC 3411



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

17420+1557 BU 1251 AB (HD 160910)

 
 
17h 41m 58.64s +15° 57' 07.8" P.A. 102.00 sep 1.4 mag 5.59,9.38 Sp F3IV dist. 34.86 pc (113.71 l.y.)
 
 
Coord 2000 17420+1557 Discov num BU 1251 Comp AB Coord arcsec 2000 17 41 58.64 +15 57 07.8
Date first 1891 Date last 2016 Obs 43
Pa first 79 Pa last 101.7 P.A. Now (θ) 101.7°
Sep first 1.4 Sep last 1.426 Sep. Now (ρ) 1.426"
Mag pri 5.59 Mag sec 9.38 delta mag (ΔM) 3.79 Spectral class F3IV (yellow-white)
Pri motion ra +001 Sec motion ra -007
Pri motion dec +114 Sec motion dec +103
Notes O (Orbital solution)
rPM=0.119 (< 0.3, Physical double)
This double is physical.
 
 
17420+1557 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 160910 103033 17 41 59 +15 57 08 BU 1251 AB 2016 43 102 1.4 5.59 9.38 3.79 Y <===
Show 103033 17 41 59 +15 57 08 BU 1251 AC 2015 6 271 154.7 5.59 14.46 8.87
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 160910 Constellation Hercules SAO 103033 HIP 86623
Tycho2 1551-02120-1 Gaia DR2 4548845321128406528 HD 160910 HR 6594
GC 24009 ADS 10723 BD BD+16 3256 Distance 34.86
Distance ly 113.71
 
 
ORBITAL ELEMENTS
 
 
Period (P)144y Periastron (T)1949.64y Semi-major axis (a)1.04a
Eccentricity (e)0.42 Inclination (i)148.3° Longitude of periastron (ω)150°
Node (Ω)67° Notesn ReferenceBaz1991a
Equinox Last observation1989 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 118.0 1.244
2001 116.7 1.256
2002 115.4 1.268
2003 114.1 1.280
2004 112.9 1.291
2005 111.6 1.302
2006 110.4 1.313
2007 109.2 1.323
2008 108.0 1.333
2009 106.8 1.343
2010 105.7 1.352
2011 104.6 1.360
2012 103.4 1.368
2013 102.3 1.376
2014 101.2 1.384
2015 100.1 1.391
2016 99.1 1.397
2017 98.0 1.403
2018 96.9 1.409
2019 95.9 1.414
2020 94.9 1.418
2021 93.8 1.423
2022 92.8 1.426
2023 91.8 1.429
2024 90.7 1.432
2025 89.7 1.434
2026 88.7 1.436
2027 87.7 1.437
2028 86.7 1.438
2029 85.7 1.438
2030 84.7 1.437


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


 
  


wds17420%2B1557a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 17420+1557 BU 1251 AB (HD 160910) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Baz1991a orb - Baize, P. 1991A&AS...87...49B
Baz1991a A&AS 87, 49, 1991
 
 
DISCOVERER
 
 
idgroup discov author
1 BU Burnham, S.W. (BU 1 - 81)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17420+1557 BU 1251 AB 1998 35 121 1.2 5.59 9.38 F3IV NOD 174158.64+155707.8
17420+1557 BU 1251 AB 2007 37 111 1.4 5.59 9.38 F3IV NOD 174158.64+155707.8
17420+1557 BU 1251 AB 2016 39 102 1.4 5.59 9.38 F3IV O 174158.64+155707.8

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

 
 
WDS 17420+1557 BU 1251 AB (HD 160910) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 17420+1557 BU 1251 AB (HD 160910) : MEASURES
 
 
No records found.

 
 
WDS 17420+1557 (HD 160910) : VIRTUAL EYEPIECE
 
 

17420+1557 BU 1251A mag 5.59 Sp F3IV 17420+1557 BU 1251B sep 1.4 P.A. 102.20 mag 9.38 17420+1557 BU 1251C sep 148.8 P.A. 270.70 mag 14.46 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 17420+1557 (HD 160910) : ALADIN DSS IMAGE @ 17h 41m 58.64s +15° 57' 07.8"
 
 
 
 
WDS 17420+1557 BU 1251 AB (HD 160910) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

17420+1557 BU 1251AB distance=0' 17403+1553 TVB 296 distance=26' 17433+1534 KPP4055 distance=30' 17411+1628 A 2091 distance=34' 17396+1555 J 455 distance=35' 17444+1600 LSC 75 distance=35' 17428+1646 BPMA 51 distance=51' 17456+1553 HU 1287 distance=53' 17411+1505 UC 3382AB distance=54' 17384+1539 GWP2728 distance=56' 17376+1556 BPM 691 distance=64' 17382+1522 TOB 263 distance=65' 17388+1643 BPM 692 distance=66' 17375+1616 HEI 249 distance=69' 17439+1455 J 2115 distance=70' 17421+1707 LDS1001 distance=71' 17457+1650 A 2092 distance=76' 17433+1441 BPM 695 distance=78' 17358+1537 OL 196 distance=81' 17478+1557 TOB 268AB distance=84' 17478+1557 TOB 268AC distance=84' 17434+1435 UC 3391 distance=85' 17478+1546 TOB 267 distance=86' 17478+1619 HEI 254 distance=87' 17429+1724 TOB 266 distance=88' 17483+1547 J 753AB distance=91' 17483+1547 FOX 209AC distance=91' 17472+1502 HU 1288 distance=93' 17477+1641 UC 3411 distance=94' 17467+1447 STF2217AB distance=98' 17467+1447 STF2217AC distance=98' 17443+1425 HJ 1303 distance=99' 17440+1738 TOB 265 distance=105' 17433+1741 STH 4 distance=106' 17489+1633 TDT 519 distance=107' 17438+1742 TOB 264 distance=108' 17349+1519 STT 332AB distance=110' 17349+1519 STT 332AC distance=110' 17479+1449 STF2222 distance=110' 17492+1517 OL 197 distance=112' 17433+1751 BPM 696 distance=115' 17495+1513 KPP 401 distance=117' 17343+1519 GLP 7 distance=118' 17457+1743 STF2205 distance=119' 17453+1750 TDT 488 distance=123' 17335+1553 BPM 687 distance=123' 17336+1618 LDS4752 distance=124' 17376+1747 BPM 690 distance=127' 17471+1742 STF2215 distance=129' 17484+1727 ARG 79 distance=129' 17339+1655 LDT 22 distance=131' 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 17420+1557 BU 1251 AB 102 1.4
Show 17420+1557 BU 1251 AC 271 154.7
Show 17403+1553 TVB 296 302 17.0 26
Show 17433+1534 KPP4055 106 1.3 30
Show 17411+1628 A 2091 269 0.8 34
Show 17396+1555 J 455 205 2.7 35
Show 17444+1600 LSC 75 323 0.6 35
Show 17428+1646 BPMA 51 170 128.6 51
Show 17456+1553 HU 1287 63 1.9 53
Show 17411+1505 UC 3382 AB 341 24.2 54
Show 17384+1539 GWP2728 350 10.3 56
Show 17376+1556 BPM 691 108 59.3 64
Show 17382+1522 TOB 263 238 15.5 65
Show 17388+1643 BPM 692 111 112.7 66
Show 17375+1616 HEI 249 233 1.6 69
Show 17439+1455 J 2115 223 6.6 70
Show 17421+1707 LDS1001 116 42.8 71
Show 17457+1650 A 2092 337 0.9 76
Show 17433+1441 BPM 695 52 118.7 78
Show 17358+1537 OL 196 273 6.5 81
Show 17478+1557 TOB 268 AB 115 24.1 84
Show 17478+1557 TOB 268 AC 253 70.2 84
Show 17434+1435 UC 3391 137 10.2 85
Show 17478+1546 TOB 267 84 17.9 86
Show 17478+1619 HEI 254 275 2.3 87
Show 17429+1724 TOB 266 80 24.0 88
Show 17483+1547 J 753 AB 275 2.0 91
Show 17483+1547 FOX 209 AC 179 47.9 91
Show 17472+1502 HU 1288 163 0.4 93
Show 17477+1641 UC 3411 258 13.4 94
Show 17467+1447 STF2217 AB 284 7.1 98
Show 17467+1447 STF2217 AC 300 23.2 98
Show 17443+1425 HJ 1303 152 41.1 99
Show 17440+1738 TOB 265 259 15.1 105
Show 17433+1741 STH 4 49 15.3 106
Show 17489+1633 TDT 519 221 1.0 107
Show 17438+1742 TOB 264 175 17.3 108
Show 17349+1519 STT 332 AB 111 10.5 110
Show 17349+1519 STT 332 AC 56 41.7 110
Show 17479+1449 STF2222 63 2.4 110
Show 17492+1517 OL 197 113 3.7 112
Show 17433+1751 BPM 696 335 109.5 115
Show 17495+1513 KPP 401 114 3.7 117
Show 17343+1519 GLP 7 244 9.2 118
Show 17457+1743 STF2205 21 0.8 119
Show 17453+1750 TDT 488 1 0.7 123
Show 17335+1553 BPM 687 127 64.0 123
Show 17336+1618 LDS4752 145 3.0 124
Show 17376+1747 BPM 690 210 65.8 127
Show 17471+1742 STF2215 249 0.4 129
Show 17484+1727 ARG 79 119 30.1 129

 
 
WDS 17420+1557 : COMPONENTS
 
 
  A B
B pa=102.2°
sep=1.37"
 
C pa=270.7°
sep=148.77"
pa=270.8°
sep=150.12"
 
 
17420+1557 A
 
 
Name HD 160910 Coord arcsec 2000 174158.64+155707.8 Mag 5.59 Spectral class F3IV (yellow-white)
PmRA 1.00 PmDE 114.0 SAO 103033 HIP 86623
Tycho2 1551-02120-1 HD 160910 HR 6594 GC 24009
BD BD+16 3256
Tycho2
Tycho2 1551-02120-1 Pflag RAmdeg 265.49432798 DEmdeg 15.95245305
PmRA 0.9 PmDE 113.9 E RAmdeg 3 E DEmdeg 3
E pmRA 1.0 E pmDE 0.9 EpRAm 1991.41 EpDEm 1991.35
Num 14 Q RAmdeg 2.0 Q DEmdeg 1.7 Q pmRA 2.0
Q pmDE 1.9 BTmag 5.994 E BTmag 0.014 VTmag 5.594
E VTmag 0.009 Prox 12 TYC T HIP 86623
CCDM A RAdeg 265.49432583 DEdeg 15.95218444 EpRA 1990 1.56
EpDE 1990 1.51 E RAdeg 3.4 E DEdeg 3.4 Posflg P
Corr -0.2
SAO
SAO 103033 DelFlag RA1950 PmRA1950 0.0006
DE1950 PmDE1950 0.1 Vmag 5.6 SpType F5
Double code Source 70 CatNum 24009 DM BD+16 3256
DMcomp BDsup HD 160910 M HD 0
GC 24009 RA1950rad 4.623953 DE1950rad 0.27879685 PmRA2000 0.0006
PmDE2000 0.101
Hipparcos
Catalog H HIP 86623 Proxy H RAhms 17 41 58.64
DEdms +15 57 07.8 Vmag 5.54 VarFlag R Vmag G
RAdeg 265.494 DEdeg 15.9522 AstroRef A Plx 28.15
CCDM 17420+1557 N CCDM M Nsys 1 Ncomp 2
MultFlag C Source Qual C M HIP AB
Theta 132 Rho 1.229 HD 160910 BD BD+16 3256
CD CP Dm number +16 3256 VIred 0.44
SpType F4Vw R SpType Coord arcsec 2000 174158.64+155707.8
Hipparcos 2
HIP 86623 Sn 15 So 3 Nc 2
RArad 4.6337501333 DErad 0.2784180493 Plx 28.69 PmRA -7.71
PmDE 104.64 E RArad 0.43 E DErad 0.45 E Plx 0.63
E pmRA 0.45 E pmDE 0.51 Hpmag 5.6258 E Hpmag 0.0006
SHp 0.006 VA 0 BV 0.387 E BV 0.012
VI 0.44
CCDM
Ccdm 17420+1557 RComp Comp A Note1
Note2 Discov num DRAs -1.38 DDEs 10.0
R dRAs 65 Year Theta Rho
Obs 3 Vmag 5.6 Sp F5 PmNote *
PmRA 8 PmDE 135 Dm number +16 3256 Cat1 BD
Name2 +15 1791 Cat2 AGK2/3 HD 160910 M HD
ADS BDS A10723 M ADS BDS N IDS IDS 17375N1600A
HIC 86623
 
 
17420+1557 B
 
 
Coord arcsec 2000 174158.73+155707.5 Mag 9.38 PmRA -7.00 PmDE 103.0
Calc delta mag 3.79 Calc coord yes
CCDM
Ccdm 17420+1557 RComp Comp B Note1 *
Note2 Discov num BU 1251 DRAs DDEs
R dRAs Year 1948 Theta 004 Rho 0.6
Obs 16 Vmag 11.1 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A10723 M ADS BDS N N IDS IDS 17375N1600B
HIC
 
 
17420+1557 C
 
 
Coord arcsec 2000 174148.33+155709.7 Mag 14.46 PmRA 3.00 PmDE -6.0
Calc delta mag 8.87 Calc coord yes
CCDM
Ccdm 17420+1557 RComp Comp C Note1
Note2 Discov num BU 1251 DRAs -12.10 DDEs 12.8
R dRAs 65 Year 1960 Theta 274 Rho 155.5
Obs 2 Vmag 12.4 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A10723 M ADS BDS N IDS IDS 17375N1600C
HIC