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Doubles in session


Current system
11537+7345
BU 794 AB
HD 103246


Nearby doubles
18' : 11556+7330
NI 28

23' : 11580+7359
CRB 191

36' : 11552+7311
HJ 2590

37' : 11510+7311
LDS1742

43' : 12029+7404
TOI1262

54' : 11442+7311
HJ 2582

60' : 12047+7425
LDS1747

73' : 11415+7255
CVR1377

76' : 11371+7319
TDS7960

78' : 11555+7229
MLR 426

83' : 12074+7248
TDS8230

85' : 12118+7312
LDS1749

89' : 12096+7250
HJ 2599

89' : 12107+7440
KPP3250

92' : 12023+7222
STF1588

93' : 11406+7232
CVR1375

96' : 11577+7213
LDS1744

102' : 11544+7527
SKF1220

105' : 11378+7508
TDS7966

105' : 11386+7511
MLR 425

108' : 11519+7158
HJ 2588

110' : 11541+7155
A 75

129' : 11360+7533
FMR 222AB

154' : 11361+7133
NSN 617

154' : 11484+7114
HJ 2586

155' : 12020+7618
LDS1745



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.

11537+7345 BU 794 AB (HD 103246)

 
 
11h 53m 43.07s +73° 45' 21.6" P.A. 63.00 sep 0.5 mag 7.23,8.32 Sp F8V dist. 58.17 pc (189.75 l.y.)
 
 
Coord 2000 11537+7345 Discov num BU  794 Comp AB Coord arcsec 2000 11 53 43.07 +73 45 21.6
Date first 1881 Date last 2018 Obs 130
Pa first 107 Pa last 63.1 P.A. Now (θ) 77.8°
Sep first 0.4 Sep last 0.48 Sep. Now (ρ) 0.509"
Mag pri 7.23 Mag sec 8.32 delta mag (ΔM) 1.09 Spectral class F8V (yellow-white)
Pri motion ra -048 Sec motion ra
Pri motion dec -117 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
11537+7345 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 103246 7445 11 53 43 +73 45 22 BU 794 AB 2018 130 63 0.5 7.23 8.32 1.09 Y <===
Show 7445 11 53 43 +73 45 22 BU 794 AB,C 2015 8 81 5.7 6.84 16.50 9.66
Show 7445 11 53 43 +73 45 22 BU 794 AB,D 2015 8 59 37.0 6.84 14.70 7.86
Quadruple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 103246 Constellation Draco SAO 7445 HIP 57994
Tycho2 4399-01256-1 Gaia DR2 1075979849854380032 HD 103246 GC 16266
ADS 8337 BD BD+74 476 Distance 58.17 Distance ly 189.75
 
 
ORBITAL ELEMENTS
 
 
Period (P)76.7y Periastron (T)1987.3y Semi-major axis (a)0.41a
Eccentricity (e)0.5 Inclination (i)39° Longitude of periastron (ω)247°
Node (Ω)22° Notesn ReferenceSod1999
Equinox2000 Last observation Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 26.3 0.403
2001 29.4 0.418
2002 32.3 0.432
2003 35.1 0.444
2004 37.7 0.455
2005 40.2 0.465
2006 42.6 0.474
2007 45.0 0.482
2008 47.2 0.489
2009 49.4 0.495
2010 51.6 0.500
2011 53.7 0.505
2012 55.7 0.508
2013 57.8 0.511
2014 59.8 0.513
2015 61.8 0.515
2016 63.8 0.516
2017 65.8 0.516
2018 67.8 0.516
2019 69.8 0.516
2020 71.8 0.515
2021 73.8 0.513
2022 75.8 0.511
2023 77.8 0.509
2024 79.9 0.506
2025 82.0 0.503
2026 84.1 0.500
2027 86.2 0.496
2028 88.4 0.493
2029 90.6 0.488
2030 92.9 0.484


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


 
  


wds11537%2B7345a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 11537+7345 BU 794 AB (HD 103246) : NOTES
 
 
discov_num notes refcode
BU 794 AB: Malkov et al. (2012) derive dynamical, photometric, and
spectroscopic masses 2.31 +/- 1.25, 2.52, and 1.10 Msun, respectively. Mlk2012
 
 
REFERENCES
 
 
refcode metd author reference
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
Sod1999 orb - Soderhjelm, S. 1999A&A...341..121S
Sod1999 A&A 341, 121, 1999
 
 
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
11537+7345 BU 794 AB 2007 127 43 0.5 7.23 8.32 F8V NO 115343.18+734522.9
11537+7345 BU 794 AB 2009 128 50 0.5 7.23 8.32 F8V NO 115343.18+734522.9
11537+7345 BU 794 AB 2018 129 63 0.5 7.23 8.32 F8V NO 115343.07+734521.6

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

 
 
WDS 11537+7345 BU 794 AB (HD 103246) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 11537+7345 BU 794 AB (HD 103246) : MEASURES
 
 
No records found.

 
 
WDS 11537+7345 (HD 103246) : VIRTUAL EYEPIECE
 
 

11537+7345 BU 794A mag 7.23 Sp F8V 11537+7345 BU 794B sep 0.2 P.A. 28.90 mag 8.32 11537+7345 BU 794C sep 1.8 P.A. 59.10 mag 16.5 11537+7345 BU 794D sep 20.9 P.A. 25.20 mag 14.7 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 11537+7345 (HD 103246) : ALADIN DSS IMAGE @ 11h 53m 43.07s +73° 45' 21.6"
 
 
 
 
WDS 11537+7345 BU 794 AB (HD 103246) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

11537+7345 BU 794AB distance=0' 11556+7330 NI 28 distance=18' 11580+7359 CRB 191 distance=23' 11552+7311 HJ 2590 distance=36' 11510+7311 LDS1742 distance=37' 12029+7404 TOI1262 distance=43' 11442+7311 HJ 2582 distance=54' 12047+7425 LDS1747 distance=60' 11415+7255 CVR1377 distance=73' 11371+7319 TDS7960 distance=76' 11555+7229 MLR 426 distance=78' 12074+7248 TDS8230 distance=83' 12118+7312 LDS1749 distance=85' 12096+7250 HJ 2599 distance=89' 12107+7440 KPP3250 distance=89' 12023+7222 STF1588 distance=92' 11406+7232 CVR1375 distance=93' 11577+7213 LDS1744 distance=96' 11544+7527 SKF1220 distance=102' 11378+7508 TDS7966 distance=105' 11386+7511 MLR 425 distance=105' 11519+7158 HJ 2588 distance=108' 11541+7155 A 75 distance=110' 11360+7533 FMR 222AB distance=129' 11360+7533 KPP3242Aa,Ab distance=129' 11361+7133 NSN 617 distance=154' 11484+7114 HJ 2586 distance=154' 12020+7618 LDS1745 distance=155' 11431+7106 CVR1378 distance=167' 11502+7051 HJ 2587 distance=175' 11397+7100 GIC9017 distance=177' 11416+7056 A 74 distance=178' 12016+7051 STF1590 distance=179' 11360+7634 LDS1736 distance=185' 11390+7051 FYM 655AB distance=187' 11390+7051 FYM 655AC distance=187' 12001+7039 BU 795AB distance=189' 12001+7039 STT 242AC distance=189' 12001+7039 STH 2AE distance=189' 12001+7039 BU 795CD distance=189' 11340+7059 CVR1372 distance=189' 12024+7034 KPP3860FH distance=196' 12102+7651 MFL 51 distance=196' 11353+7048 STF1551 distance=197' 11505+7029 CRB 190 distance=197' 11475+7702 LDS1739 distance=199' 12061+7022 A 76BC distance=211' 12061+7022 A 76AB distance=211' 11493+7728 LOC 340 distance=224' 11471+7002 NSN 621 distance=226' 12069+7008 SKF 237 distance=226' 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 11537+7345 BU 794 AB 63 0.5
Show 11537+7345 BU 794 AB,C 81 5.7
Show 11537+7345 BU 794 AB,D 59 37.0
Show 11556+7330 NI 28 332 3.6 18
Show 11580+7359 CRB 191 345 21.6 23
Show 11552+7311 HJ 2590 325 10.6 36
Show 11510+7311 LDS1742 206 4.9 37
Show 12029+7404 TOI1262 267 1.5 43
Show 11442+7311 HJ 2582 154 4.6 54
Show 12047+7425 LDS1747 195 3.0 60
Show 11415+7255 CVR1377 50 3.2 73
Show 11371+7319 TDS7960 124 0.5 76
Show 11555+7229 MLR 426 312 0.1 78
Show 12074+7248 TDS8230 74 0.5 83
Show 12118+7312 LDS1749 148 8.9 85
Show 12096+7250 HJ 2599 109 12.2 89
Show 12107+7440 KPP3250 179 1.1 89
Show 12023+7222 STF1588 34 11.7 92
Show 11406+7232 CVR1375 247 3.8 93
Show 11577+7213 LDS1744 252 62.7 96
Show 11544+7527 SKF1220 63 73.9 102
Show 11378+7508 TDS7966 356 0.7 105
Show 11386+7511 MLR 425 247 1.9 105
Show 11519+7158 HJ 2588 21 35.3 108
Show 11541+7155 A 75 26 0.3 110
Show 11360+7533 FMR 222 AB 90 399.0 129
Show 11360+7533 KPP3242 Aa,Ab 131 3.0 129
Show 11361+7133 NSN 617 217 2.3 154
Show 11484+7114 HJ 2586 260 26.6 154
Show 12020+7618 LDS1745 167 113.5 155
Show 11431+7106 CVR1378 298 4.7 167
Show 11502+7051 HJ 2587 302 19.8 175
Show 11397+7100 GIC9017 239 1.6 177
Show 11416+7056 A 74 302 1.3 178
Show 12016+7051 STF1590 232 5.3 179
Show 11360+7634 LDS1736 177 1.8 185
Show 11390+7051 FYM 655 AB 77 5.4 187
Show 11390+7051 FYM 655 AC 210 11.4 187
Show 12001+7039 BU 795 AB 329 14.4 189
Show 12001+7039 STT 242 AC 159 30.6 189
Show 12001+7039 STH 2 AE 317 25.2 189
Show 12001+7039 BU 795 CD 113 6.0 189
Show 11340+7059 CVR1372 112 3.5 189
Show 12024+7034 KPP3860 FH 110 52.4 196
Show 12102+7651 MFL 51 191 5.1 196
Show 11353+7048 STF1551 111 6.8 197
Show 11505+7029 CRB 190 138 23.1 197
Show 11475+7702 LDS1739 282 60.8 199
Show 12061+7022 A 76 BC 291 1.1 211
Show 12061+7022 A 76 AB 43 22.5 211
Show 11493+7728 LOC 340 141 1.1 224

 
 
WDS 11537+7345 : COMPONENTS
 
 
  A B C
B pa=28.9°
sep=0.25"
 
C pa=59.1°
sep=1.82"
pa=63.6°
sep=1.61"
 
D pa=25.2°
sep=20.86"
pa=25.2°
sep=20.61"
pa=22.2°
sep=19.37"
 
 
11537+7345 A
 
 
Name HD 103246 Coord arcsec 2000 115343.07+734521.6 Mag 7.23 Spectral class F8V (yellow-white)
PmRA -48.00 PmDE -117.0 SAO 7445 HIP 57994
Tycho2 4399-01256-1 HD 103246 GC 16266 ADS 8337
BD BD+74 476
Tycho2
Tycho2 4399-01256-1 Pflag RAmdeg 178.42955414 DEmdeg 73.75608277
PmRA -42.3 PmDE -109.4 E RAmdeg 4 E DEmdeg 4
E pmRA 1.0 E pmDE 1.1 EpRAm 1991.46 EpDEm 1991.44
Num 10 Q RAmdeg 1.2 Q DEmdeg 1.5 Q pmRA 1.1
Q pmDE 1.5 BTmag 7.463 E BTmag 0.015 VTmag 6.838
E VTmag 0.010 Prox 999 TYC T HIP 57994
CCDM AB RAdeg 178.42989917 DEdeg 73.75633500 EpRA 1990 1.77
EpDE 1990 1.69 E RAdeg 3.7 E DEdeg 3.8 Posflg P
Corr 0.0
SAO
SAO 7445 DelFlag RA1950 PmRA1950 -0.0128
DE1950 PmDE1950 -0.119 Vmag 6.8 SpType F8
Double code Source 70 CatNum 16266 DM BD+74 476
DMcomp BDsup HD 103246 M HD 0
GC 16266 RA1950rad 3.10247262 DE1950rad 1.29216678 PmRA2000 -0.0123
PmDE2000 -0.116
Hipparcos
Catalog H HIP 57994 Proxy H RAhms 11 53 43.18
DEdms +73 45 22.9 Vmag 6.77 VarFlag R Vmag H
RAdeg 178.43 DEdeg 73.7563 AstroRef * Plx 17.49
CCDM 11537+7345 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 334 Rho 0.214 HD 103246 BD BD+74 476
CD CP Dm number +74 476 VIred 0.65
SpType F8 R SpType Coord arcsec 2000 115343.18+734522.9
Hipparcos 2
HIP 57994 Sn 55 So 3 Nc 2
RArad 3.1141896335 DErad 1.2872911709 Plx 17.19 PmRA -48.44
PmDE -116.7 E RArad 0.37 E DErad 0.34 E Plx 0.44
E pmRA 0.37 E pmDE 0.34 Hpmag 6.8932 E Hpmag 0.0009
SHp 0.01 VA 0 BV 0.574 E BV 0.004
VI 0.65
CCDM
Ccdm 11537+7345 RComp Comp A Note1
Note2 Discov num DRAs 0.94 DDEs 23.1
R dRAs 10 Year Theta Rho
Obs 4 Vmag 7.1 Sp F8 PmNote *
PmRA -55 PmDE -87 Dm number +74 476 Cat1 BD
Name2 +74 313 Cat2 AGK2/3 HD 103246 M HD
ADS BDS A 8337 M ADS BDS N IDS IDS 11483N7419A
HIC 57994
 
 
11537+7345 B
 
 
Coord arcsec 2000 115343.10+734521.8 Mag 8.32 Calc delta mag 1.09 Calc coord yes
CCDM
Ccdm 11537+7345 RComp Comp B Note1 *
Note2 Discov num BU 794 DRAs DDEs
R dRAs Year 1881 Theta Rho
Obs 99 Vmag 8.4 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 8337 M ADS BDS N IDS IDS 11483N7419B
HIC 57994
 
 
11537+7345 C
 
 
Coord arcsec 2000 115343.44+734522.5 Mag 16.5 PmRA -36.00 PmDE -113.0
Calc delta mag 9.27 Calc coord yes
CCDM
Ccdm 11537+7345 RComp Comp C Note1
Note2 Discov num BU 794 DRAs DDEs
R dRAs Year 1886 Theta 072 Rho 5.6
Obs 5 Vmag 14.0 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 8337 M ADS BDS N IDS IDS 11483N7419C
HIC 57994
 
 
11537+7345 D
 
 
Coord arcsec 2000 115345.19+734540.5 Mag 14.7 PmRA 5.00 PmDE 5.0
Calc delta mag 7.47 Calc coord yes
CCDM
Ccdm 11537+7345 RComp Comp D Note1
Note2 Discov num BU 794 DRAs 8.55 DDEs 38.2
R dRAs 65 Year 1890 Theta 078 Rho 26.9
Obs 2 Vmag 13.3 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 8337 M ADS BDS N IDS IDS 11483N7419D
HIC