stampa
Login

Set your own preferrences to customize your experience with Stelle Doppie!
Create your account here!


Search



Actions
Advanced Search
Go to Simbad
New report
New measure
Login


Computed Lists
Populars
Latest Populars
Doubles in session


Current system
17520+1520
STT 338 AB
HD 162734


Nearby doubles
9' : 17516+1513
KPP3324

15' : 17525+1530
L 17AB

15' : 17530+1521
OSO 86AB

18' : 17514+1504
UC 3429

19' : 17506+1517
FOX 22

23' : 17520+1542
HDS2520

24' : 17527+1459
BPM 705

27' : 17509+1458
J 2117

31' : 17520+1449
TDT 542

37' : 17495+1513
KPP 401

41' : 17492+1517
OL 197

57' : 17538+1610
BPM 707

58' : 17518+1422
UC 3431

61' : 17483+1547
J 753AB

66' : 17478+1546
TOB 267

67' : 17479+1449
STF2222

72' : 17567+1539
J 2098AB

72' : 17478+1557
TOB 268AB

72' : 17472+1502
HU 1288

73' : 17539+1413
TDT 563AB

78' : 17573+1531
ROE 120

79' : 17525+1402
TOK 611

79' : 17571+1547
MCT 10

81' : 17531+1401
HJ 1306

83' : 17567+1434
UC 3452

84' : 17467+1447
STF2217AB



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.

17520+1520 STT 338 AB (HD 162734)

 
 
17h 51m 58.46s +15° 19' 34.9" P.A. 168.00 sep 0.9 mag 7.21,7.38 Sp G8III dist. 234.19 pc (763.93 l.y.)
 
 
Coord 2000 17520+1520 Discov num STT 338 Comp AB Coord arcsec 2000 17 51 58.46 +15 19 34.9
Date first 1843 Date last 2018 Obs 307
Pa first 223 Pa last 167.7 P.A. Now (θ) 167.7°
Sep first 0.6 Sep last 0.9 Sep. Now (ρ) 0.9"
Mag pri 7.21 Mag sec 7.38 delta mag (ΔM) 0.17 Spectral class G8III (yellow)
Pri motion ra -002 Sec motion ra -002
Pri motion dec +043 Sec motion dec +043
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
17520+1520 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 162734 103161 17 51 58 +15 19 35 STT 338 AB 2018 307 168 0.9 7.21 7.38 0.17 Y <===
Show 103161 17 51 58 +15 19 35 STT 338 AC 2015 6 202 32.6 7.21 13.10 5.89
Show 103161 17 51 58 +15 19 35 STT 338 AD 2015 7 247 96.3 7.21 11.60 4.39
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 162734 Constellation Hercules SAO 103161 HIP 87427
Tycho2 1552-02535-1 Gaia DR2 4500935858592797056 HD 162734 HR 6665
GC 24281 ADS 10850 BD BD+15 3292 Distance 234.19
Distance ly 763.93
 
 
ORBITAL ELEMENTS
 
 
Period (P)1276.6y Periastron (T)1799.9y Semi-major axis (a)1.14a
Eccentricity (e)0.582 Inclination (i)124.2° Longitude of periastron (ω)111.1°
Node (Ω)28.2° Notesn ReferencePru2012
Equinox2000 Last observation2010 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 167.9 0.824
2001 167.6 0.824
2002 167.4 0.824
2003 167.1 0.825
2004 166.9 0.825
2005 166.6 0.825
2006 166.4 0.826
2007 166.1 0.826
2008 165.9 0.826
2009 165.6 0.827
2010 165.4 0.827
2011 165.1 0.827
2012 164.9 0.828
2013 164.7 0.828
2014 164.4 0.828
2015 164.2 0.829
2016 163.9 0.829
2017 163.7 0.829
2018 163.4 0.830
2019 163.2 0.830
2020 163.0 0.830
2021 162.7 0.831
2022 162.5 0.831
2023 162.2 0.831
2024 162.0 0.832
2025 161.7 0.832
2026 161.5 0.832
2027 161.3 0.833
2028 161.0 0.833
2029 160.8 0.833
2030 160.5 0.833


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


 
  


wds17520%2B1520b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 17520+1520 STT 338 AB (HD 162734) : NOTES
 
 
discov_num notes refcode
STT 338 L 16.
AB: Prieur et al. (2012) derive a dynamical parallax of 7.9 mas and
(using their orbital elements and the revised Hipparcos parallax of
van Leeuwen 2007 A&A 474, 653) a total mass 12. +/- 11. Msun. Pru2012
 
 
REFERENCES
 
 
refcode metd author reference
Pru2012 S j Prieur, J.-L., Scardia, M., Pansecchi, L., Argyle, R.W., & Sala, M. 2012MNRAS.422.1057P
Pru2012 +orb MNRAS 422, 1057, 2012
 
 
DISCOVERER
 
 
idgroup discov author
1 STT Struve, O.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17520+1520 STT 338 AB 2005 307 169 0.8 7.21 7.38 G8III N D 175158.46+151934.9
17520+1520 STT 338 AB 2008 309 165 0.8 7.21 7.38 G8III N D 175158.46+151934.9
17520+1520 STT 338 AB 2010 314 162 0.8 7.21 7.38 G8III N D 175158.46+151934.9
17520+1520 STT 338 AB 2013 320 163 0.8 7.21 7.38 G8III NOD 175158.46+151934.9
17520+1520 STT 338 AB 2015 294 163 0.7 7.21 7.38 G8III NO 175158.46+151934.9
17520+1520 STT 338 AB 2016 297 168 0.8 7.21 7.38 G8III NO 175158.46+151934.9
17520+1520 STT 338 AB 2017 300 164 0.8 7.21 7.38 G8III NO 175158.46+151934.9
17520+1520 STT 338 AB 2018 301 164 0.8 7.21 7.38 G8III NO 175158.46+151934.9

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

 
 
WDS 17520+1520 STT 338 AB (HD 162734) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 17520+1520 STT 338 AB (HD 162734) : MEASURES
 
 
No records found.

 
 
WDS 17520+1520 (HD 162734) : VIRTUAL EYEPIECE
 
 

17520+1520 STT 338A mag 7.21 Sp G8III 17520+1520 STT 338B sep 0.9 P.A. 168.10 mag 7.38 17520+1520 STT 338C sep 32.5 P.A. 201.20 mag 13.1 17520+1520 STT 338D sep 93.4 P.A. 245.90 mag 11.6 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 17520+1520 (HD 162734) : ALADIN DSS IMAGE @ 17h 51m 58.46s +15° 19' 34.9"
 
 
 
 
WDS 17520+1520 STT 338 AB (HD 162734) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

17520+1520 STT 338AB distance=0' 17516+1513 KPP3324 distance=9' 17525+1530 L 17AB distance=15' 17525+1530 WLY 20AC distance=15' 17530+1521 OSO 86AB distance=15' 17530+1521 OSO 86AC distance=15' 17530+1521 ZIE 11AD distance=15' 17514+1504 UC 3429 distance=18' 17506+1517 FOX 22 distance=19' 17520+1542 HDS2520 distance=23' 17527+1459 BPM 705 distance=24' 17509+1458 J 2117 distance=27' 17520+1449 TDT 542 distance=31' 17495+1513 KPP 401 distance=37' 17492+1517 OL 197 distance=41' 17538+1610 BPM 707 distance=57' 17518+1422 UC 3431 distance=58' 17483+1547 J 753AB distance=61' 17483+1547 FOX 209AC distance=61' 17478+1546 TOB 267 distance=66' 17479+1449 STF2222 distance=67' 17567+1539 J 2098AB distance=72' 17567+1539 J 2098AC distance=72' 17478+1557 TOB 268AB distance=72' 17478+1557 TOB 268AC distance=72' 17472+1502 HU 1288 distance=72' 17539+1413 TDT 563AB distance=73' 17539+1413 GII 254Aa,Ab distance=73' 17573+1531 ROE 120 distance=78' 17525+1402 TOK 611 distance=79' 17571+1547 MCT 10 distance=79' 17531+1401 HJ 1306 distance=81' 17567+1434 UC 3452 distance=83' 17467+1447 STF2217AB distance=84' 17467+1447 STF2217AC distance=84' 17547+1633 UC 234 distance=84' 17478+1619 HEI 254 distance=85' 17489+1633 TDT 519 distance=86' 17578+1542 BPM 712 distance=88' 17573+1607 HEI 256 distance=91' 17530+1655 CRC 27Aa,Ab distance=97' 17530+1655 CRC 27AB distance=97' 17587+1530 BPM 713 distance=98' 17456+1553 HU 1287 distance=99' 17554+1352 HEI 553 distance=102' 17477+1641 UC 3411 distance=102' 17584+1437 STF2253AB distance=103' 17584+1437 STF2253AC distance=103' 17537+1702 BPM 706 distance=106' 17524+1708 TDT 550 distance=109' 17468+1401 LSC 77 distance=109' 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 17520+1520 STT 338 AB 168 0.9
Show 17520+1520 STT 338 AC 202 32.6
Show 17520+1520 STT 338 AD 247 96.3
Show 17516+1513 KPP3324 349 14.1 9
Show 17525+1530 L 17 AB 292 2.7 15
Show 17525+1530 WLY 20 AC 122 38.1 15
Show 17530+1521 OSO 86 AB 208 20.9 15
Show 17530+1521 OSO 86 AC 300 23.4 15
Show 17530+1521 ZIE 11 AD 112 28.8 15
Show 17514+1504 UC 3429 131 53.5 18
Show 17506+1517 FOX 22 340 1.0 19
Show 17520+1542 HDS2520 184 4.6 23
Show 17527+1459 BPM 705 230 26.6 24
Show 17509+1458 J 2117 199 5.1 27
Show 17520+1449 TDT 542 186 0.7 31
Show 17495+1513 KPP 401 114 3.7 37
Show 17492+1517 OL 197 113 3.7 41
Show 17538+1610 BPM 707 132 98.6 57
Show 17518+1422 UC 3431 224 23.0 58
Show 17483+1547 J 753 AB 275 2.0 61
Show 17483+1547 FOX 209 AC 179 47.9 61
Show 17478+1546 TOB 267 84 17.9 66
Show 17479+1449 STF2222 63 2.4 67
Show 17567+1539 J 2098 AB 130 4.3 72
Show 17567+1539 J 2098 AC 306 16.8 72
Show 17478+1557 TOB 268 AB 115 24.1 72
Show 17478+1557 TOB 268 AC 253 70.2 72
Show 17472+1502 HU 1288 163 0.4 72
Show 17539+1413 TDT 563 AB 62 1.7 73
Show 17539+1413 GII 254 Aa,Ab 107 0.5 73
Show 17573+1531 ROE 120 237 6.6 78
Show 17525+1402 TOK 611 255 999.9 79
Show 17571+1547 MCT 10 283 1.4 79
Show 17531+1401 HJ 1306 5 30.1 81
Show 17567+1434 UC 3452 65 91.0 83
Show 17467+1447 STF2217 AB 284 7.1 84
Show 17467+1447 STF2217 AC 300 23.2 84
Show 17547+1633 UC 234 204 32.4 84
Show 17478+1619 HEI 254 275 2.3 85
Show 17489+1633 TDT 519 221 1.0 86
Show 17578+1542 BPM 712 100 83.7 88
Show 17573+1607 HEI 256 349 2.1 91
Show 17530+1655 CRC 27 Aa,Ab 112 0.9 97
Show 17530+1655 CRC 27 AB 31 9.0 97
Show 17587+1530 BPM 713 139 36.1 98
Show 17456+1553 HU 1287 63 1.9 99
Show 17554+1352 HEI 553 207 0.6 102
Show 17477+1641 UC 3411 258 13.4 102
Show 17584+1437 STF2253 AB 76 10.9 103
Show 17584+1437 STF2253 AC 63 72.1 103
Show 17537+1702 BPM 706 287 69.6 106

 
 
WDS 17520+1520 : COMPONENTS
 
 
  A B C
B pa=168.1°
sep=0.90"
 
C pa=201.2°
sep=32.48"
pa=202.1°
sep=31.73"
 
D pa=245.9°
sep=93.41"
pa=246.5°
sep=93.23"
pa=263.9°
sep=73.97"
 
 
17520+1520 A
 
 
Name HD 162734 Coord arcsec 2000 175158.46+151934.9 Mag 7.21 Spectral class G8III (yellow)
PmRA -2.00 PmDE 43.0 SAO 103161 HIP 87427
Tycho2 1552-02535-1 HD 162734 HR 6665 GC 24281
BD BD+15 3292
Tycho2
Tycho2 1552-02535-1 Pflag P RAmdeg 267.99362031 DEmdeg 15.32626839
PmRA -1.7 PmDE 42.7 E RAmdeg 5 E DEmdeg 5
E pmRA 1.5 E pmDE 1.5 EpRAm 1991.46 EpDEm 1991.39
Num 6 Q RAmdeg 1.0 Q DEmdeg 1.0 Q pmRA 1.0
Q pmDE 0.9 BTmag 8.359 E BTmag 0.016 VTmag 7.210
E VTmag 0.010 Prox 8 TYC T HIP 87427
CCDM B RAdeg 267.99360833 DEdeg 15.32626389 EpRA 1990 1.61
EpDE 1990 1.54 E RAdeg 4.7 E DEdeg 4.7 Posflg D
Corr -0.2
SAO
SAO 103161 DelFlag RA1950 PmRA1950 -0.0001
DE1950 PmDE1950 0.03 Vmag 6.5 SpType K0
Double code Source 70 CatNum 24281 DM BD+15 3292
DMcomp BDsup HD 162734 M HD 0
GC 24281 RA1950rad 4.66752192 DE1950rad 0.26767366 PmRA2000 0
PmDE2000 0.031
Hipparcos
Catalog H HIP 87427 Proxy H RAhms 17 51 58.46
DEdms +15 19 34.6 Vmag 6.43 VarFlag R Vmag H
RAdeg 267.994 DEdeg 15.3263 AstroRef B Plx 7.4
CCDM 17520+1520 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP BA
Theta 170 Rho 0.839 HD 162734 BD BD+15 3292
CD CP Dm number +15 3292 VIred 0.99
SpType K0III R SpType Coord arcsec 2000 175158.46+151934.6
Hipparcos 2
HIP 87427 Sn 15 So 3 Nc 2
RArad 4.677370756 DErad 0.2674939429 Plx 4.27 PmRA -7.19
PmDE 41.43 E RArad 1 E DErad 0.83 E Plx 1.31
E pmRA 1.19 E pmDE 0.94 Hpmag 6.6006 E Hpmag 0.001
SHp 0.008 VA 0 BV 0.997 E BV 0.009
VI 0.98
CCDM
Ccdm 17520+1520 RComp Comp A Note1
Note2 Discov num DRAs -1.44 DDEs -26.3
R dRAs 65 Year Theta Rho
Obs 4 Vmag 6.8 Sp K0 PmNote *
PmRA -16 PmDE 46 Dm number +15 3292 Cat1 BD
Name2 +15 1814 Cat2 AGK2/3 HD 162734 M HD
ADS BDS A10850 M ADS BDS N IDS IDS 17475N1521A
HIC 87427
 
 
17520+1520 B
 
 
Coord arcsec 2000 175158.47+151934.0 Mag 7.38 PmRA -2.00 PmDE 43.0
Tycho2 1552-02535-2 Calc delta mag 0.17 Calc coord yes
Tycho2
Tycho2 1552-02535-2 Pflag P RAmdeg 267.99362031 DEmdeg 15.32626839
PmRA -1.7 PmDE 42.7 E RAmdeg 5 E DEmdeg 5
E pmRA 1.5 E pmDE 1.5 EpRAm 1991.46 EpDEm 1991.39
Num 6 Q RAmdeg 1.0 Q DEmdeg 1.0 Q pmRA 1.0
Q pmDE 0.9 BTmag 8.542 E BTmag 0.017 VTmag 7.378
E VTmag 0.011 Prox 8 TYC T HIP 87427
CCDM A RAdeg 267.99364611 DEdeg 15.32603806 EpRA 1990 1.61
EpDE 1990 1.54 E RAdeg 5.0 E DEdeg 5.0 Posflg D
Corr -0.2
CCDM
Ccdm 17520+1520 RComp Comp B Note1
Note2 Discov num STT 338 DRAs DDEs
R dRAs Year 1959 Theta 357 Rho 0.7
Obs 99 Vmag 7.1 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A10850 M ADS BDS N IDS IDS 17475N1521B
HIC 87427
 
 
17520+1520 C
 
 
Coord arcsec 2000 175157.65+151904.6 Mag 13.1 PmRA -7.00 PmDE -2.0
Calc delta mag 5.89 Calc coord yes
CCDM
Ccdm 17520+1520 RComp Comp C Note1
Note2 Discov num STT 338 DRAs -2.41 DDEs -54.1
R dRAs 65 Year 1894 Theta 217 Rho 28.0
Obs 1 Vmag 12.9 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A10850 M ADS BDS N IDS IDS 17475N1521C
HIC
 
 
17520+1520 D
 
 
Coord arcsec 2000 175152.56+151856.8 Mag 11.6 PmRA 3.00 PmDE -19.0
Calc delta mag 4.39 Calc coord yes
CCDM
Ccdm 17520+1520 RComp Comp D Note1
Note2 Discov num STT 338 DRAs -7.41 DDEs -61.4
R dRAs 65 Year 1906 Theta 251 Rho 95.2
Obs 1 Vmag 9.9 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A10850 M ADS BDS N IDS IDS 17475N1521D
HIC