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Doubles in session


Current system
13491+2659
STF 1785
HD 120476


Nearby doubles
38' : 13518+2703
AZC 81

46' : 13511+2623
CVR1549

50' : 13514+2620
SKF 260AB

55' : 13488+2753
HDS1942AB

78' : 13449+2755
LDS1396

79' : 13520+2807
CLZ 61AB

88' : 13525+2544
A 568

95' : 13466+2826
KOP 1

102' : 13420+2625
SLW 913

104' : 13432+2553
FMR 113

104' : 13541+2540
SLW 946

105' : 13544+2543
NSN 649

105' : 13444+2536
LDS5791AB

108' : 13476+2513
SLN 80

110' : 13409+2705
SLW 909

114' : 13571+2738
GOM 25

114' : 13532+2839
DRS 52AB

115' : 13425+2812
ES 442

116' : 13403+2701
BRT 163

117' : 13407+2730
SLW 907

117' : 13499+2855
CBL 431

120' : 13451+2512
BRT3300

123' : 13487+2901
AZC 80

126' : 13546+2518
UC 2634

126' : 13501+2454
NSN 648

128' : 13454+2857
LAW 20AB



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.

13491+2659 STF 1785 (HD 120476)

 
 
13h 49m 04.00s +26° 58' 47.7" P.A. 193.00 sep 2.7 mag 7.36,8.15 Sp K4V+K6V dist. 13.41 pc (43.74 l.y.)
 
 
Coord 2000 13491+2659 Discov num STF1785 Comp Coord arcsec 2000 13 49 04.00 +26 58 47.7
Date first 1823 Date last 2021 Obs 923
Pa first 160 Pa last 192.6 P.A. Now (θ) 193.7°
Sep first 5.7 Sep last 2.72 Sep. Now (ρ) 2.644"
Mag pri 7.36 Mag sec 8.15 delta mag (ΔM) 0.79 Spectral class K4V+K6V (yellow-orange/yellow-orange)
Pri motion ra -417 Sec motion ra -463
Pri motion dec -112 Sec motion dec -071
Notes N O (See Notes, Orbital solution)
rPM=0.132 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 120476 Constellation Bootes SAO 83011 HIP 67422
Tycho2 2002-00492-1 HD 120476 GC 18670 ADS 9031
GL Gl 528A BD BD+27 2296 Distance 13.41 Distance ly 43.74
 
 
ORBITAL ELEMENTS
 
 
Period (P)156.1355y± 0.4982 Periastron (T)1916.7297y± 0.3174 Semi-major axis (a)2.4432a± 0.00469
Eccentricity (e)0.44695± 0.00244 Inclination (i)47.73°± 0.237 Longitude of periastron (ω)199.619°± 1.522
Node (Ω)155.594°± 0.715 Notesn ReferenceIzm2019
Equinox Last observation2015 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 172.8 3.350
2001 173.6 3.332
2002 174.3 3.313
2003 175.1 3.292
2004 175.8 3.270
2005 176.6 3.247
2006 177.4 3.223
2007 178.2 3.198
2008 179.0 3.171
2009 179.9 3.143
2010 180.7 3.114
2011 181.6 3.084
2012 182.5 3.053
2013 183.4 3.021
2014 184.3 2.988
2015 185.2 2.954
2016 186.2 2.918
2017 187.2 2.882
2018 188.2 2.845
2019 189.2 2.806
2020 190.3 2.767
2021 191.4 2.727
2022 192.5 2.686
2023 193.7 2.644
2024 194.9 2.602
2025 196.1 2.559
2026 197.4 2.515
2027 198.7 2.470
2028 200.1 2.425
2029 201.5 2.379
2030 203.0 2.333


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


 
  


wds13491%2B2659c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 13491+2659 STF 1785 (HD 120476) : NOTES
 
 
discov_num notes refcode
STF1785 Malkov et al. (2012) derive dynamical, photometric, and spectroscopic
masses of 1.43 +/- 0.39, 1.49, and 1.34 Msun, respectively. Mlk2012
 
 
REFERENCES
 
 
refcode metd author reference
Izm2019 orb u Izmailov, I.S. 2019AstL...45...30I
Izm2019 Ast. Lett. 45, 30, 2019
Izm2019 (Orbital elements from weighted solutions used when available (Table 2),
Izm2019 unweighted elements (Table 1) used for remaining 29 systems.)
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
 
 
DISCOVERER
 
 
idgroup discov author
1 STF Struve, F.G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
13491+2659 STF1785 2007 841 179 3.2 7.36 8.15 K4V K6V NODV 134904.00+265847.7
13491+2659 STF1785 2008 842 178 3.1 7.36 8.15 K4V K6V NODV 134904.00+265847.7
13491+2659 STF1785 2009 845 180 3.1 7.36 8.15 K4V K6V NODV 134904.00+265847.7
13491+2659 STF1785 2010 859 181 3.1 7.36 8.15 K4V K6V NOD 134904.00+265847.7
13491+2659 STF1785 2011 863 182 3.0 7.36 8.15 K4V K6V NOD 134904.00+265847.7
13491+2659 STF1785 2013 863 184 3.0 7.36 8.15 K4V K6V NOD 134904.00+265847.7
13491+2659 STF1785 2015 873 190 2.7 7.36 8.15 K4V+K6V NOD 134904.00+265847.7
13491+2659 STF1785 2016 884 189 3.2 7.36 8.15 K4V+K6V NO 134904.00+265847.7
13491+2659 STF1785 2017 885 187 2.9 7.36 8.15 K4V+K6V NO 134904.00+265847.7
13491+2659 STF1785 2018 892 189 2.8 7.36 8.15 K4V+K6V NO 134904.00+265847.7
13491+2659 STF1785 2019 901 190 2.8 7.36 8.15 K4V+K6V NO 134904.00+265847.7
13491+2659 STF1785 2020 907 191 2.6 7.36 8.15 K4V+K6V NO 134904.00+265847.7
13491+2659 STF1785 2021 922 193 2.7 7.36 8.15 K4V+K6V NO 134904.00+265847.7

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

 
 
WDS 13491+2659 STF 1785 (HD 120476) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 13491+2659 STF 1785 (HD 120476) : MEASURES
 
 
Records found: 1
Show date username difficulty sep sep_sigma pa pa_sigma delta_mag # notes
Show 15/06/02 inzet very difficult 2.66 0.42 189.71 6.86 1.04 24
 
 
WDS 13491+2659 (HD 120476) : VIRTUAL EYEPIECE
 
 

13491+2659 STF1785A mag 7.36 Sp K4V 13491+2659 STF1785B sep 2.7 P.A. 191.30 mag 8.15 Sp K6V 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 13491+2659 (HD 120476) : ALADIN DSS IMAGE @ 13h 49m 04.00s +26° 58' 47.7"
 
 
 
 
WDS 13491+2659 STF 1785 (HD 120476) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

13491+2659 STF1785 distance=0' 13518+2703 AZC 81 distance=38' 13511+2623 CVR1549 distance=46' 13514+2620 SKF 260Ba,Bb distance=50' 13514+2620 YSC 50Aa,Ab distance=50' 13514+2620 SKF 260AB distance=50' 13488+2753 HDS1942AB distance=55' 13488+2753 HDS1942AC distance=55' 13488+2753 GII 199Aa,Ab distance=55' 13449+2755 LDS1396 distance=78' 13520+2807 CLZ 61AB distance=79' 13520+2807 KPP4379BC distance=79' 13525+2544 A 568 distance=88' 13466+2826 KOP 1 distance=95' 13420+2625 SLW 913 distance=102' 13432+2553 FMR 113 distance=104' 13541+2540 SLW 946 distance=104' 13544+2543 NSN 649 distance=105' 13444+2536 LDS5791AB distance=105' 13444+2536 BUP 152AC distance=105' 13476+2513 SLN 80 distance=108' 13409+2705 SLW 909 distance=110' 13571+2738 GOM 25 distance=114' 13532+2839 DRS 52AB distance=114' 13532+2839 TOK 569AC distance=114' 13425+2812 ES 442 distance=115' 13403+2701 BRT 163 distance=116' 13407+2730 SLW 907 distance=117' 13499+2855 CBL 431 distance=117' 13451+2512 BRT3300 distance=120' 13487+2901 AZC 80 distance=123' 13546+2518 UC 2634 distance=126' 13501+2454 NSN 648 distance=126' 13454+2857 LAW 20Aa,Ab distance=128' 13454+2857 LAW 20AB distance=128' 13407+2804 BUP 151 distance=130' 13419+2836 SHN 180 distance=136' 13446+2457 RAO 301 distance=137' 13570+2535 KPP3275 distance=137' 13569+2529 GRV1278 distance=140' 13586+2812 SLW 951 distance=147' 13591+2549 STF1793 distance=152' 13376+2623 LDS1395 distance=157' 13414+2902 KPP 292 distance=160' 13599+2810 HDS1964 distance=161' 13494+2418 TDS8982 distance=162' 13570+2455 BUP 154 distance=165' 13546+2429 BRT3302 distance=169' 13595+2524 SMH 20 distance=169' 13378+2819 HJ 3341AB distance=171' 13378+2819 HJ 3341AC distance=171' 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 13491+2659 STF1785 193 2.7
Show 13518+2703 AZC 81 86 33.6 38
Show 13511+2623 CVR1549 355 5.2 46
Show 13514+2620 SKF 260 Ba,Bb 50 0.2 50
Show 13514+2620 YSC 50 Aa,Ab 226 0.1 50
Show 13514+2620 SKF 260 AB 358 3.1 50
Show 13488+2753 HDS1942 AB 103 0.6 55
Show 13488+2753 HDS1942 AC 43 1.7 55
Show 13488+2753 GII 199 Aa,Ab 138 0.2 55
Show 13449+2755 LDS1396 301 45.3 78
Show 13520+2807 CLZ 61 AB 1 11.4 79
Show 13520+2807 KPP4379 BC 247 1.9 79
Show 13525+2544 A 568 321 2.6 88
Show 13466+2826 KOP 1 182 20.6 95
Show 13420+2625 SLW 913 94 41.2 102
Show 13432+2553 FMR 113 330 130.8 104
Show 13541+2540 SLW 946 145 11.1 104
Show 13544+2543 NSN 649 225 1.3 105
Show 13444+2536 LDS5791 AB 186 7.2 105
Show 13444+2536 BUP 152 AC 150 94.7 105
Show 13476+2513 SLN 80 101 21.4 108
Show 13409+2705 SLW 909 314 29.9 110
Show 13571+2738 GOM 25 76 125.6 114
Show 13532+2839 DRS 52 AB 122 5.3 114
Show 13532+2839 TOK 569 AC 275 999.9 114
Show 13425+2812 ES 442 256 4.2 115
Show 13403+2701 BRT 163 103 5.0 116
Show 13407+2730 SLW 907 34 35.1 117
Show 13499+2855 CBL 431 358 58.6 117
Show 13451+2512 BRT3300 142 3.2 120
Show 13487+2901 AZC 80 57 14.5 123
Show 13546+2518 UC 2634 262 29.7 126
Show 13501+2454 NSN 648 89 3.9 126
Show 13454+2857 LAW 20 Aa,Ab 69 0.1 128
Show 13454+2857 LAW 20 AB 89 20.3 128
Show 13407+2804 BUP 151 223 89.7 130
Show 13419+2836 SHN 180 -1 0.3 136
Show 13446+2457 RAO 301 357 0.9 137
Show 13570+2535 KPP3275 131 1.4 137
Show 13569+2529 GRV1278 46 1.4 140
Show 13586+2812 SLW 951 236 15.7 147
Show 13591+2549 STF1793 243 4.8 152
Show 13376+2623 LDS1395 223 18.4 157
Show 13414+2902 KPP 292 11 3.6 160
Show 13599+2810 HDS1964 309 1.2 161
Show 13494+2418 TDS8982 14 0.5 162
Show 13570+2455 BUP 154 21 128.7 165
Show 13546+2429 BRT3302 350 5.2 169
Show 13595+2524 SMH 20 143 3.4 169
Show 13378+2819 HJ 3341 AB 190 2.4 171
Show 13378+2819 HJ 3341 AC 76 119.4 171

 
 
WDS 13491+2659 : COMPONENTS
 
 
  A
B pa=191.3°
sep=2.71"
 
 
13491+2659 A
 
 
Componente originario normalizzato AB Name HD 120476 Coord arcsec 2000 134904.00+265847.7 Mag 7.36
Spectral class K4V (yellow-orange) PmRA -417.00 PmDE -112.0 SAO 83011
HIP 67422 Tycho2 2002-00492-1 HD 120476 GC 18670
ADS 9031 BD BD+27 2296
SAO
SAO 83011 DelFlag RA1950 PmRA1950 -0.0328
DE1950 PmDE1950 -0.092 Vmag 7.3 SpType K2
Double code Source 70 CatNum 18670 DM BD+27 2296
DMcomp BDsup HD 120476 M HD 0
GC 18670 RA1950rad 3.6075532 DE1950rad 0.47523284 PmRA2000 -0.0326
PmDE2000 -0.089
Hipparcos
Catalog H HIP 67422 Proxy H RAhms 13 49 04.28
DEdms +26 58 48.5 Vmag 7.05 VarFlag R Vmag G
RAdeg 207.268 DEdeg 26.9801 AstroRef A Plx 73.25
CCDM 13491+2659 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 167 Rho 3.456 HD 120476 BD BD+27 2296
CD CP Dm number +27 2296 VIred 1.16
SpType K2 R SpType Coord arcsec 2000 134904.28+265848.5
Hipparcos 2
HIP 67422 Sn 15 So 3 Nc 2
RArad 3.6175057874 DErad 0.4708920851 Plx 74.58 PmRA -418.67
PmDE -89.51 E RArad 0.59 E DErad 0.47 E Plx 0.78
E pmRA 0.75 E pmDE 0.52 Hpmag 7.142 E Hpmag 0.0011
SHp 0.012 VA 0 BV 1.11 E BV 0.01
VI 1.16
CCDM
Ccdm 13491+2659 RComp Comp A Note1
Note2 Discov num DRAs -2.07 DDEs -14.0
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.9 Sp N2 PmNote *
PmRA -461 PmDE -96 Dm number +27 2296 Cat1 BD
Name2 +27 1319 Cat2 AGK2/3 HD 120476 M HD
ADS BDS A 9031 M ADS BDS N IDS IDS 13445N2729A
HIC 67422
 
 
13491+2659 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 134903.96+265845.0 Mag 8.15 Spectral class K6V (yellow-orange)
PmRA -463.00 PmDE -71.0 Tycho2 2002-00492-2 Calc delta mag 0.79
Calc coord yes
Tycho2
Tycho2 2002-00492-2 Pflag RAmdeg 207.26687162 DEmdeg 26.97892521
PmRA -436.0 PmDE -110.8 E RAmdeg 7 E DEmdeg 9
E pmRA 1.9 E pmDE 1.8 EpRAm 1991.65 EpDEm 1991.33
Num 4 Q RAmdeg 0.7 Q DEmdeg 1.0 Q pmRA 0.7
Q pmDE 1.0 BTmag 9.603 E BTmag 0.024 VTmag 8.147
E VTmag 0.013 Prox 35 TYC HIP 67422
CCDM B RAdeg 207.26798500 DEdeg 26.97918306 EpRA 1990 1.81
EpDE 1990 1.62 E RAdeg 6.9 E DEdeg 8.6 Posflg
Corr -0.1
CCDM
Ccdm 13491+2659 RComp Comp B Note1 *
Note2 Discov num STF1785 DRAs DDEs
R dRAs Year 1830 Theta Rho
Obs 99 Vmag 8.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 9031 M ADS BDS N N IDS IDS 13445N2729B
HIC 67422