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Current system
15390+2545
COU 612
HD 139749


Nearby doubles
18' : 15380+2556
TDS9569

48' : 15358+2527
LDS4569

49' : 15404+2500
LDS4578

49' : 15361+2517
HDS2192

60' : 15427+2618
STF1967

63' : 15430+2617
FLA 2

65' : 15438+2553
LDT 12

66' : 15429+2624
BRT 167

67' : 15371+2646
HDS2199AB

71' : 15371+2650
GRV1211

73' : 15348+2500
STT 297

73' : 15418+2647
CBL 493

73' : 15340+2610
SLW1108

75' : 15383+2431
ARY 11

79' : 15355+2647
SHN 202

81' : 15419+2655
TDS9592

83' : 15399+2423
TDS9583

87' : 15454+2538
PST 5AB

88' : 15344+2445
LDS4561

90' : 15455+2523
KPP3968

91' : 15339+2643
STF1955AB

91' : 15346+2653
UC 3029

92' : 15347+2655
COU 798

99' : 15390+2723
KPP2324

99' : 15437+2424
POU3200

104' : 15314+2556
SLW1102



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

15390+2545 COU 612 (HD 139749)

 
 
15h 39m 02.60s +25° 44' 47.0" P.A. 342.00 sep 0.3 mag 9.15,9.04 Sp G5 dist. 106.04 pc (345.9 l.y.)
 
 
Coord 2000 15390+2545 Discov num COU 612 Comp Coord arcsec 2000 15 39 02.60 +25 44 47.0
Date first 1971 Date last 2016 Obs 85
Pa first 200 Pa last 341.7 P.A. Now (θ) 139.7°
Sep first 0.2 Sep last 0.285 Sep. Now (ρ) 0.219"
Mag pri 9.15 Mag sec 9.04 delta mag (ΔM) 0.11 Spectral class G5 (yellow)
Pri motion ra +026 Sec motion ra
Pri motion dec +003 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 139749 Constellation Corona Borealis SAO 83928 HIP 76639
Tycho2 2036-01176-1 HD 139749 BD BD+26 2712 Distance 106.04
Distance ly 345.9
 
 
ORBITAL ELEMENTS
 
 
Period (P)63.09y Periastron (T)2035.01y Semi-major axis (a)0.223a
Eccentricity (e)0.401 Inclination (i)138.8° Longitude of periastron (ω)136.1°
Node (Ω)155.9° Notesn ReferenceDoc2011h
Equinox2000 Last observation2009 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 201.0 0.263
2001 198.3 0.268
2002 195.6 0.272
2003 193.0 0.276
2004 190.5 0.280
2005 188.0 0.283
2006 185.6 0.285
2007 183.2 0.287
2008 180.8 0.289
2009 178.5 0.290
2010 176.2 0.290
2011 173.8 0.289
2012 171.5 0.288
2013 169.1 0.286
2014 166.7 0.283
2015 164.2 0.280
2016 161.7 0.276
2017 159.1 0.270
2018 156.3 0.264
2019 153.5 0.257
2020 150.4 0.249
2021 147.1 0.240
2022 143.6 0.230
2023 139.7 0.219
2024 135.4 0.207
2025 130.5 0.194
2026 124.9 0.180
2027 118.4 0.166
2028 110.6 0.151
2029 101.1 0.137
2030 89.6 0.124


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


 
  


wds15390%2B2545b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 15390+2545 COU 612 (HD 139749) : NOTES
 
 
discov_num notes refcode
COU 612 Malkov et al. (2012) derive dynamical, photometric, and spectroscopic
masses of 2.82 +/- 1.14, 2.51, and 0.95 Msun, respectively. Mlk2012
 
 
REFERENCES
 
 
refcode metd author reference
Doc2011h orb - Docobo, J.A. & Ling, J.F. 2011IAUDS.175Q...1D
Doc2011h Inf. Circ. 175, 1, 2011
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 COU Couteau, P.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15390+2545 COU 612 2005 75 188 0.3 9.15 9.04 G5 NOD 153902.60+254447.0
15390+2545 COU 612 2007 77 182 0.3 9.15 9.04 G5 NOD 153902.60+254447.0
15390+2545 COU 612 2009 79 358 0.3 9.15 9.04 G5 NOD 153902.60+254447.0
15390+2545 COU 612 2010 80 354 0.3 9.15 9.04 G5 NO 153902.60+254447.0
15390+2545 COU 612 2016 81 342 0.3 9.15 9.04 G5 NO 153902.60+254447.0

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

 
 
WDS 15390+2545 COU 612 (HD 139749) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 15390+2545 COU 612 (HD 139749) : MEASURES
 
 
No records found.

 
 
WDS 15390+2545 (HD 139749) : VIRTUAL EYEPIECE
 
 

15390+2545 COU 612A mag 9.15 Sp G5 15390+2545 COU 612B sep 0.3 P.A. 343.40 mag 9.04 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 15390+2545 (HD 139749) : ALADIN DSS IMAGE @ 15h 39m 02.60s +25° 44' 47.0"
 
 
 
 
WDS 15390+2545 COU 612 (HD 139749) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

15390+2545 COU 612 distance=0' 15380+2556 TDS9569 distance=18' 15358+2527 LDS4569 distance=48' 15404+2500 LDS4578 distance=49' 15361+2517 HDS2192 distance=49' 15427+2618 STF1967 distance=60' 15430+2617 FLA 2 distance=63' 15438+2553 LDT 12 distance=65' 15429+2624 BRT 167 distance=66' 15371+2646 HDS2199AB distance=67' 15371+2646 GII 40AC distance=67' 15371+2650 GRV1211 distance=71' 15348+2500 STT 297 distance=73' 15418+2647 CBL 493 distance=73' 15340+2610 SLW1108 distance=73' 15383+2431 ARY 11 distance=75' 15355+2647 SHN 202 distance=79' 15419+2655 TDS9592 distance=81' 15399+2423 TDS9583 distance=83' 15454+2538 PST 5AB distance=87' 15454+2538 PST 5AC distance=87' 15344+2445 LDS4561 distance=88' 15455+2523 KPP3968 distance=90' 15339+2643 STF1955AB distance=91' 15339+2643 TAR 2AC distance=91' 15346+2653 UC 3029 distance=91' 15347+2655 COU 798 distance=92' 15390+2723 KPP2324 distance=99' 15437+2424 POU3200 distance=99' 15314+2556 SLW1102 distance=104' 15368+2404 POU3195 distance=105' 15366+2726 MLB 690 distance=105' 15458+2637 COU 615 distance=106' 15353+2408 POU3193 distance=109' 15449+2708 CVR1645 distance=115' 15367+2353 CVR 795 distance=117' 15314+2646 CVR 790 distance=120' 15446+2411 POU3202 distance=120' 15474+2504 RAO 665 distance=121' 15429+2355 POU3199 distance=122' 15300+2530 STF1950 distance=124' 15397+2751 KPP3963 distance=127' 15485+2600 COU 616 distance=129' 15407+2339 AZC 93 distance=129' 15456+2412 POU3203 distance=129' 15392+2330 POU3197 distance=134' 15377+2329 ARY 10 distance=138' 15441+2345 SLN 82 distance=138' 15488+2503 DOO 60 distance=139' 15456+2356 UC 3054 distance=141' 15375+2325 POU3196 distance=141' 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 15390+2545 COU 612 342 0.3
Show 15380+2556 TDS9569 114 0.6 18
Show 15358+2527 LDS4569 13 249.0 48
Show 15404+2500 LDS4578 80 14.9 49
Show 15361+2517 HDS2192 128 0.2 49
Show 15427+2618 STF1967 110 0.5 60
Show 15430+2617 FLA 2 148 44.9 63
Show 15438+2553 LDT 12 262 0.2 65
Show 15429+2624 BRT 167 235 3.1 66
Show 15371+2646 HDS2199 AB 349 0.2 67
Show 15371+2646 GII 40 AC 243 2.1 67
Show 15371+2650 GRV1211 74 29.8 71
Show 15348+2500 STT 297 332 12.8 73
Show 15418+2647 CBL 493 33 13.3 73
Show 15340+2610 SLW1108 320 11.2 73
Show 15383+2431 ARY 11 327 151.0 75
Show 15355+2647 SHN 202 -1 0.6 79
Show 15419+2655 TDS9592 36 0.4 81
Show 15399+2423 TDS9583 230 0.5 83
Show 15454+2538 PST 5 AB 271 10.6 87
Show 15454+2538 PST 5 AC 270 17.8 87
Show 15344+2445 LDS4561 287 64.8 88
Show 15455+2523 KPP3968 347 26.3 90
Show 15339+2643 STF1955 AB 237 7.8 91
Show 15339+2643 TAR 2 AC 35 20.5 91
Show 15346+2653 UC 3029 290 54.6 91
Show 15347+2655 COU 798 211 0.2 92
Show 15390+2723 KPP2324 321 19.8 99
Show 15437+2424 POU3200 69 4.7 99
Show 15314+2556 SLW1102 274 10.1 104
Show 15368+2404 POU3195 18 13.0 105
Show 15366+2726 MLB 690 222 2.1 105
Show 15458+2637 COU 615 127 1.0 106
Show 15353+2408 POU3193 296 7.5 109
Show 15449+2708 CVR1645 332 3.5 115
Show 15367+2353 CVR 795 112 9.2 117
Show 15314+2646 CVR 790 48 13.4 120
Show 15446+2411 POU3202 299 6.8 120
Show 15474+2504 RAO 665 326 4.1 121
Show 15429+2355 POU3199 108 14.3 122
Show 15300+2530 STF1950 91 3.3 124
Show 15397+2751 KPP3963 179 7.3 127
Show 15485+2600 COU 616 163 0.8 129
Show 15407+2339 AZC 93 170 41.1 129
Show 15456+2412 POU3203 107 16.7 129
Show 15392+2330 POU3197 352 4.0 134
Show 15377+2329 ARY 10 316 79.0 138
Show 15441+2345 SLN 82 3 17.7 138
Show 15488+2503 DOO 60 23 28.0 139
Show 15456+2356 UC 3054 211 41.4 141
Show 15375+2325 POU3196 179 11.8 141

 
 
WDS 15390+2545 : COMPONENTS
 
 
  A
B pa=343.4°
sep=0.28"
 
 
15390+2545 A
 
 
Componente originario normalizzato AB Name HD 139749 Coord arcsec 2000 153902.60+254447.0 Mag 9.15
Spectral class G5 (yellow) PmRA 26.00 PmDE 3.0 SAO 83928
HIP 76639 HD 139749 BD BD+26 2712
SAO
SAO 83928 DelFlag RA1950 PmRA1950 0.0038
DE1950 PmDE1950 0 Vmag 8 SpType G5
Double code Source 34 CatNum 7281 DM BD+26 2712
DMcomp BDsup HD 139749 M HD 0
GC RA1950rad 4.08807731 DE1950rad 0.45217974 PmRA2000 0.0039
PmDE2000 0.003
Hipparcos
Catalog H HIP 76639 Proxy H RAhms 15 39 02.60
DEdms +25 44 47.0 Vmag 8.16 VarFlag R Vmag G
RAdeg 234.761 DEdeg 25.7464 AstroRef * Plx 11.04
CCDM 15390+2545 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP BA
Theta 52 Rho 0.219 HD 139749 BD BD+26 2712
CD CP Dm number +26 2712 VIred 0.62
SpType G0V R SpType Coord arcsec 2000 153902.60+254447.0
Hipparcos 2
HIP 76639 Sn 55 So 3 Nc 2
RArad 4.0973496154 DErad 0.4493591766 Plx 9.43 PmRA 32.47
PmDE 2.91 E RArad 0.63 E DErad 0.61 E Plx 0.95
E pmRA 0.64 E pmDE 0.67 Hpmag 8.3382 E Hpmag 0.0016
SHp 0.017 VA 0 BV 0.545 E BV 0.015
VI 0.62
CCDM
Ccdm 15390+2545 RComp Comp A Note1
Note2 Discov num DRAs 2.61 DDEs -13.0
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.4 Sp G5 PmNote *
PmRA 23 PmDE 8 Dm number +26 2712 Cat1 BD
Name2 +25 1582 Cat2 AGK2/3 HD 139749 M HD
ADS BDS M ADS BDS N IDS IDS 15348N2604A
HIC 76639
 
 
15390+2545 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 153902.59+254447.3 Mag 9.04 Tycho2 2036-01176-1
Calc delta mag 0.11 Calc coord yes
Tycho2
Tycho2 2036-01176-1 Pflag RAmdeg 234.76092751 DEmdeg 25.74638921
PmRA 31.8 PmDE 3.5 E RAmdeg 6 E DEmdeg 6
E pmRA 1.3 E pmDE 1.2 EpRAm 1991.02 EpDEm 1991.00
Num 10 Q RAmdeg 1.2 Q DEmdeg 1.2 Q pmRA 1.2
Q pmDE 1.2 BTmag 8.938 E BTmag 0.017 VTmag 8.305
E VTmag 0.012 Prox 999 TYC T HIP 76639
CCDM AB RAdeg 234.76084444 DEdeg 25.74638083 EpRA 1990 1.51
EpDE 1990 1.51 E RAdeg 6.0 E DEdeg 6.1 Posflg P
Corr 0.0
CCDM
Ccdm 15390+2545 RComp Comp B Note1 *
Note2 Discov num COU 612 DRAs DDEs
R dRAs Year 1971 Theta 19 Rho 0.2
Obs 1 Vmag 8.4 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 15348N2604B
HIC 76639