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Doubles in session


Current system
18126+3836
BU 1091


Nearby doubles
18' : 18129+3819
TDT 737

24' : 18140+3853
NSN 793

29' : 18150+3840
LDS4781

34' : 18154+3836
MLB 852

35' : 18112+3906
HDS2565

35' : 18107+3903
ES 2569

36' : 18156+3842
ALI 871

37' : 18096+3827
LUH 13

37' : 18155+3822
ALI 870

39' : 18093+3836
HEI 557

40' : 18156+3820
CBL 75

45' : 18163+3846
KPP1820

55' : 18094+3756
ALI 609

65' : 18180+3846
GIC 151

66' : 18077+3904
ES 2018

71' : 18184+3814
RAO 387

74' : 18064+3837
ES 2017

76' : 18063+3824
HU 1186

78' : 18169+3935
TDT 773

81' : 18183+3920
ALI1101

83' : 18177+3932
TDT 778

83' : 18157+3723
ES 2664

86' : 18189+3918
MLB1078

89' : 18101+3713
ES 2480

89' : 18051+3819
J 1218

91' : 18196+3915
MLB 754



Selections
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Triple Systems
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Neglected List I
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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

18126+3836 BU 1091

 
 
18h 12m 36.71s +38° 35' 51.0" P.A. 319.00 sep 0.7 mag 8.66,9.24 Sp F8 dist. 145.99 pc (476.22 l.y.)
 
 
Coord 2000 18126+3836 Discov num BU 1091 Comp Coord arcsec 2000 18 12 36.71 +38 35 51.0
Date first 1888 Date last 2016 Obs 59
Pa first 38 Pa last 319 P.A. Now (θ) 319°
Sep first 0.5 Sep last 0.745 Sep. Now (ρ) 0.745"
Mag pri 8.66 Mag sec 9.24 delta mag (ΔM) 0.58 Spectral class F8 (yellow-white)
Pri motion ra -020 Sec motion ra -020
Pri motion dec -018 Sec motion dec -018
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Hercules HIP 89237 Tycho2 3103-01620-1 Gaia DR2 2109170241915883776
ADS 11170 BD BD+38 3109 Distance 145.99 Distance ly 476.22
 
 
ORBITAL ELEMENTS
 
 
Period (P)1297y Periastron (T)1933y Semi-major axis (a)1.175a
Eccentricity (e)0.896 Inclination (i)138.5° Longitude of periastron (ω)77.8°
Node (Ω)172.9° Notesn ReferenceZir2012b
Equinox2000 Last observation2010 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 322.9 0.671
2001 322.7 0.677
2002 322.4 0.682
2003 322.1 0.688
2004 321.9 0.694
2005 321.6 0.700
2006 321.3 0.705
2007 321.1 0.711
2008 320.8 0.716
2009 320.6 0.722
2010 320.3 0.727
2011 320.1 0.732
2012 319.9 0.738
2013 319.6 0.743
2014 319.4 0.748
2015 319.2 0.754
2016 319.0 0.759
2017 318.7 0.764
2018 318.5 0.769
2019 318.3 0.774
2020 318.1 0.779
2021 317.9 0.784
2022 317.7 0.789
2023 317.5 0.794
2024 317.3 0.799
2025 317.1 0.804
2026 316.9 0.809
2027 316.7 0.814
2028 316.5 0.818
2029 316.3 0.823
2030 316.1 0.828


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


 
  


wds18126%2B3836a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 18126+3836 BU 1091 : NOTES
 
 
discov_num notes refcode
BU 1091 Prieur et al. (2012) derive a dynamical parallax of 6.0 mas and
(using their orbital elements and the revised Hipparcos parallax of
van Leeuwen 2007 A&A 474, 653) a total mass 2.2 +/- 0.9 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
Zir2012b orb - Zirm, H. & Rica, F. 2012IAUDS.177....1Z
Zir2012b Inf. Circ. 177, 1, 2012
 
 
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
18126+3836 BU 1091 2005 39 322 0.7 8.66 9.24 F8 D 181236.71+383551.0
18126+3836 BU 1091 2008 41 312 0.7 8.66 9.24 F8 D 181236.71+383551.0
18126+3836 BU 1091 2010 45 320 0.7 8.66 9.24 F8 D 181236.71+383551.0
18126+3836 BU 1091 2011 51 319 0.8 8.66 9.24 F8 NO 181236.71+383551.0
18126+3836 BU 1091 2012 52 318 0.7 8.66 9.24 F8 NO 181236.71+383551.0
18126+3836 BU 1091 2015 54 321 0.7 8.66 9.24 F8 NO 181236.71+383551.0
18126+3836 BU 1091 2016 56 319 0.7 8.66 9.24 F8 NO 181236.71+383551.0

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

 
 
WDS 18126+3836 BU 1091 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18126+3836 BU 1091 : MEASURES
 
 
No records found.

 
 
WDS 18126+3836 : VIRTUAL EYEPIECE
 
 

18126+3836 BU 1091A mag 8.66 Sp F8 18126+3836 BU 1091B sep 0.7 P.A. 325.80 mag 9.24 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 18126+3836 : ALADIN DSS IMAGE @ 18h 12m 36.71s +38° 35' 51.0"
 
 
 
 
WDS 18126+3836 BU 1091 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18126+3836 BU 1091 distance=0' 18129+3819 TDT 737 distance=18' 18140+3853 NSN 793 distance=24' 18150+3840 LDS4781 distance=29' 18154+3836 MLB 852 distance=34' 18112+3906 HDS2565 distance=35' 18107+3903 ES 2569 distance=35' 18156+3842 ALI 871 distance=36' 18096+3827 LUH 13 distance=37' 18155+3822 ALI 870 distance=37' 18093+3836 HEI 557 distance=39' 18156+3820 CBL 75 distance=40' 18163+3846 KPP1820 distance=45' 18094+3756 ALI 609 distance=55' 18180+3846 GIC 151 distance=65' 18077+3904 ES 2018 distance=66' 18184+3814 RAO 387 distance=71' 18064+3837 ES 2017 distance=74' 18063+3824 HU 1186 distance=76' 18169+3935 TDT 773 distance=78' 18183+3920 ALI1101 distance=81' 18177+3932 TDT 778 distance=83' 18157+3723 ES 2664 distance=83' 18189+3918 MLB1078 distance=86' 18101+3713 ES 2480 distance=89' 18051+3819 J 1218 distance=89' 18196+3915 MLB 754 distance=91' 18053+3806 J 758 distance=92' 18097+4001 TDT 714 distance=92' 18053+3750 ALI 608 distance=98' 18121+4015 LEO 1 distance=100' 18079+4002 ES 1649AB distance=102' 18079+4002 ES 1649AC distance=102' 18117+4020 UC 3526 distance=106' 18038+3857 LDS4773AB distance=106' 18216+3842 LDS5861 distance=107' 18056+3727 ES 2109AB distance=108' 18056+3727 DAM 306AC distance=108' 18056+3727 ES 2109AD distance=108' 18211+3917 COU1459 distance=108' 18172+3703 COU1305 distance=108' 18210+3923 DAM 108 distance=108' 18217+3821 TDT 815 distance=109' 18212+3917 COU1460 distance=109' 18213+3920 HJ 1321 distance=111' 18040+3923 L 19 distance=113' 18171+4015 STF2304 distance=113' 18028+3815 ALI 867 distance=117' 18126+4033 OSO 96 distance=118' 18033+3921 STF2275 distance=118' 18032+3926 MLB 851 distance=121' 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 18126+3836 BU 1091 319 0.7
Show 18129+3819 TDT 737 245 0.4 18
Show 18140+3853 NSN 793 125 6.5 24
Show 18150+3840 LDS4781 2.5 29
Show 18154+3836 MLB 852 42 8.9 34
Show 18112+3906 HDS2565 340 0.7 35
Show 18107+3903 ES 2569 275 10.0 35
Show 18156+3842 ALI 871 181 12.9 36
Show 18096+3827 LUH 13 327 769.2 37
Show 18155+3822 ALI 870 242 8.8 37
Show 18093+3836 HEI 557 281 1.8 39
Show 18156+3820 CBL 75 207 18.5 40
Show 18163+3846 KPP1820 296 14.1 45
Show 18094+3756 ALI 609 207 13.3 55
Show 18180+3846 GIC 151 277 9.8 65
Show 18077+3904 ES 2018 236 5.7 66
Show 18184+3814 RAO 387 107 2.0 71
Show 18064+3837 ES 2017 268 2.6 74
Show 18063+3824 HU 1186 134 0.2 76
Show 18169+3935 TDT 773 128 0.9 78
Show 18183+3920 ALI1101 176 7.6 81
Show 18177+3932 TDT 778 177 0.9 83
Show 18157+3723 ES 2664 83 9.2 83
Show 18189+3918 MLB1078 316 6.6 86
Show 18101+3713 ES 2480 355 4.5 89
Show 18051+3819 J 1218 167 3.1 89
Show 18196+3915 MLB 754 49 4.4 91
Show 18053+3806 J 758 124 3.2 92
Show 18097+4001 TDT 714 312 0.8 92
Show 18053+3750 ALI 608 175 13.3 98
Show 18121+4015 LEO 1 146 1.5 100
Show 18079+4002 ES 1649 AB 331 7.8 102
Show 18079+4002 ES 1649 AC 226 24.4 102
Show 18117+4020 UC 3526 137 25.0 106
Show 18038+3857 LDS4773 AB 304 72.4 106
Show 18216+3842 LDS5861 140 4.7 107
Show 18056+3727 ES 2109 AB 147 4.3 108
Show 18056+3727 DAM 306 AC 331 18.8 108
Show 18056+3727 ES 2109 AD 350 41.8 108
Show 18211+3917 COU1459 92 1.4 108
Show 18172+3703 COU1305 186 1.8 108
Show 18210+3923 DAM 108 115 5.6 108
Show 18217+3821 TDT 815 88 0.8 109
Show 18212+3917 COU1460 342 0.5 109
Show 18213+3920 HJ 1321 75 9.5 111
Show 18040+3923 L 19 274 0.2 113
Show 18171+4015 STF2304 69 5.1 113
Show 18028+3815 ALI 867 246 11.4 117
Show 18126+4033 OSO 96 73 2.8 118
Show 18033+3921 STF2275 124 0.3 118
Show 18032+3926 MLB 851 34 6.7 121

 
 
WDS 18126+3836 : COMPONENTS
 
 
  A
B pa=325.8°
sep=0.68"
 
 
18126+3836 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 181236.71+383551.0 Mag 8.66 Spectral class F8 (yellow-white)
PmRA -20.00 PmDE -18.0 HIP 89237 Tycho2 3103-01620-1
BD BD+38 3109
Tycho2
Tycho2 3103-01620-1 Pflag RAmdeg 273.15290279 DEmdeg 38.59753119
PmRA -19.6 PmDE -17.9 E RAmdeg 6 E DEmdeg 6
E pmRA 1.2 E pmDE 1.2 EpRAm 1991.06 EpDEm 1991.18
Num 9 Q RAmdeg 1.5 Q DEmdeg 1.5 Q pmRA 1.5
Q pmDE 1.5 BTmag 8.869 E BTmag 0.016 VTmag 8.277
E VTmag 0.012 Prox 545 TYC T HIP 89237
CCDM AB RAdeg 273.15296167 DEdeg 38.59757222 EpRA 1990 1.53
EpDE 1990 1.65 E RAdeg 5.9 E DEdeg 5.9 Posflg P
Corr -0.1
Hipparcos
Catalog H HIP 89237 Proxy H RAhms 18 12 36.72
DEdms +38 35 51.1 Vmag 8.13 VarFlag R Vmag H
RAdeg 273.153 DEdeg 38.5975 AstroRef A Plx 5.77
CCDM 18126+3836 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 326 Rho 0.624 HD BD BD+38 3109
CD CP Dm number +38 3109 VIred 0.63
SpType F8 R SpType Coord arcsec 2000 181236.72+383551.1
Hipparcos 2
HIP 89237 Sn 15 So 3 Nc 2
RArad 4.7674193268 DErad 0.6736539973 Plx 6.85 PmRA -14.34
PmDE -23.25 E RArad 0.78 E DErad 1.05 E Plx 0.93
E pmRA 0.86 E pmDE 1.41 Hpmag 8.2433 E Hpmag 0.0012
SHp 0.013 VA 0 BV 0.541 E BV 0.013
VI 0.61
CCDM
Ccdm 18126+3836 RComp Comp A Note1
Note2 Discov num DRAs 0.76 DDEs -8.4
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.4 Sp F8 PmNote *
PmRA -8 PmDE -9 Dm number +38 3109 Cat1 BD
Name2 +38 1663 Cat2 AGK2/3 HD M HD
ADS BDS A11170 M ADS BDS N IDS IDS 18093N3834A
HIC 89237
 
 
18126+3836 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 181236.68+383551.6 Mag 9.24 PmRA -20.00
PmDE -18.0 Calc delta mag 0.58 Calc coord yes
CCDM
Ccdm 18126+3836 RComp Comp B Note1
Note2 Discov num BU 1091 DRAs DDEs
R dRAs Year 1960 Theta 347 Rho 0.3
Obs 20 Vmag 9.4 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11170 M ADS BDS N IDS IDS 18093N3834B
HIC 89237