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Doubles in session


Current system
18339+5144
ZUC 16
BY Dra


Nearby doubles
7' : 18345+5147
HDS2634

16' : 18323+5149
SLE 205

24' : 18314+5144
SLE 194AB

38' : 18372+5122
SLE 227

38' : 18319+5110
ES 784

39' : 18339+5221
A 1377AB

45' : 18340+5058
ES 785AB

57' : 18344+5240
BEM 34

59' : 18340+5045
ES 786

59' : 18389+5221
STF2368AB

68' : 18399+5106
ES 787

70' : 18414+5150
SLE 239

75' : 18387+5243
A 1379

81' : 18402+5048
COU2515

82' : 18417+5108
HU 754

89' : 18387+5300
SLE 232

95' : 18238+5139
ES 187AB

99' : 18298+5314
TDT 911

102' : 18448+5201
HU 755

106' : 18277+5016
LEP 158

112' : 18456+5119
KPP4119AB

114' : 18220+5122
UC 3560

116' : 18461+5212
MLR 637

116' : 18221+5222
ES 648

118' : 18466+5142
HU 756

119' : 18459+5228
RAO 398



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.

18339+5144 ZUC 16 (BY Dra)

 
 
18h 33m 55.77s +51° 43' 08.9" P.A. 47.00 sep 17.0 mag 8.45,15.10 Sp K4V+K7.5 dist. 16.35 pc (53.33 l.y.)
 
 
Coord 2000 18339+5144 Discov num ZUC  16 Comp Coord arcsec 2000 18 33 55.77 +51 43 08.9
Date first 1988 Date last 2016 Obs 8
Pa first 44 Pa last 46.6 P.A. Now (θ) 46.6°
Sep first 16.3 Sep last 16.96 Sep. Now (ρ) 16.96"
Mag pri 8.45 Mag sec 15.10 delta mag (ΔM) 6.65 Spectral class K4V+K7.5 (yellow-orange/yellow-orange)
Pri motion ra +186 Sec motion ra
Pri motion dec -323 Sec motion dec
Notes N (See Notes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name BY Dra Constellation Draco SAO 31048 HIP 91009
Tycho2 3539-02623-1 HD 234677 GC 25394 GL Gl 719
BD BD+51 2402 Distance 16.35 Distance ly 53.33
 
 
SUSPECTED ORBITAL ELEMENTS
 
 
Identifier18339+5144
coord_arcsec_2000183355.60+514311.7
Period (P)143.402712h± 0.00011 Periastron (T)53999.2144m (2006.722y)± 0.0021 Semi-major axis (a)4.4472m± 0.0009
Eccentricity (e)0.30014± 0.00062 Inclination (i)154.41°± 0.29 Longitude of periastron (ω)230.33°± 0.17
Node (Ω)152.3°± 0.1 Notesn ReferenceHel2012
Equinox Last observation2007 Grade8(1=Definitive, 9=Indet.)
label theta rho
2000 214.5 0.003
2001 164.2 0.005
2002 133.9 0.005
2003 108.1 0.005
2004 80.4 0.005
2005 46.2 0.004
2006 359.9 0.004
2007 289.6 0.003
2008 205.0 0.003
2009 159.3 0.005
2010 130.2 0.005
2011 104.4 0.005
2012 76.1 0.005
2013 40.5 0.004
2014 351.9 0.004
2015 276.7 0.003
2016 196.5 0.004
2017 154.7 0.005
2018 126.5 0.005
2019 100.7 0.005
2020 71.7 0.005
2021 34.6 0.004
2022 343.4 0.004
2023 263.5 0.003
2024 188.8 0.004
2025 150.3 0.005
2026 122.9 0.006
2027 96.9 0.005
2028 67.0 0.005
2029 28.5 0.004
2030 334.3 0.003


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


 
  


wds18339%2B5144k.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 18339+5144 ZUC 16 (BY Dra) : NOTES
 
 
discov_num notes refcode
ZUC 16 TOK 31.
GJ 719. Primary is 6d SB2; period of wide pair esimated at 3800y. The
114-day astrometric orbit by HIPPARCOS is not supported by RV. This is
a PMS spotted binary BY Dra. Tok2006
BY Dra Hipparcos astrometric solution assumed circular orbit (e = omega = 0) HIP1997d
Combined spectroscopic/astrometric (Palomar Testbed Interferometer)
solution by Boden & Lane (2001), including determination of distance, Bod2001
masses, luminosities, etc.
Low-mass SB2. Helminiak et al. calculate a combined spectroscopic/
astrometric orbit by combining precise RVs with archival astrometric
data from the Palomar Testbed Interferometer. They derive masses 0.792
+/- 0.026 and 0.697 +/- 0.023 Msun, radii 7.400 +/- 0.016 and 8.414
+/- 0.016 Rsun, parallax 60.43 +/- 0.12 mas. They conclude it is not
a pre-main sequence system, despite its high orbital eccentricity Hel2012
Malkov et al. (2012) derive dynamical, photometric, and spectroscopic
masses of 9.00 +/- 32.45, 1.36, and 0.62 Msun, respectively. Mlk2012
 
 
REFERENCES
 
 
refcode metd author reference
Bod2001 orb - Boden, A.F. & Lane, B.F. 2001ApJ...547.1071B
Bod2001 ApJ 547, 1071, 2001
Hel2012 orb - Helminiak, K.G., Konacki, M., Muterspaugh, M.W., Browne, S.E., Howard, A.W., & 2012MNRAS.419.1285H
Hel2012 Kulkarni, S.R.
Hel2012 MNRAS 419, 1285, 2012
HIP1997d orb - Hipparcos 1997yCat.1239....0E
HIP1997d Hipparcos Catalog, ESA SP-1200, 1997
HIP1997d (DMSA/O Orbital Solutions)
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
Tok2006 A j Tokovinin, A., Thomas, S., Sterzik, M., & Udry, S. 2006A&A...450..681T
Tok2006 +E2 A&A 450, 681, 2006
 
 
DISCOVERER
 
 
idgroup discov author
1 ZUC Zuckerman, B. & Becklin, E.E.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18339+5144 ZUC 16 1998 3 46 16.9 8.20   N D 183355.77+514308.9
18339+5144 ZUC 16 2003 4 47 16.5 8.45 15.10 N D 183355.77+514308.9
18339+5144 ZUC 16 2010 5 46 17.0 8.45 15.10 K4V+Ke N 183355.77+514308.9
18339+5144 ZUC 16 2015 6 47 17.0 8.45 15.10 K4V+Ke N 183355.77+514308.9
18339+5144 ZUC 16 2016 8 47 17.0 8.45 15.10 K4V+K7.5 N 183355.77+514308.9

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

 
 
WDS 18339+5144 ZUC 16 (BY Dra) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18339+5144 ZUC 16 (BY Dra) : MEASURES
 
 
No records found.

 
 
WDS 18339+5144 (BY Dra) : VIRTUAL EYEPIECE
 
 

18339+5144 ZUC 16A mag 8.45 Sp K4V 18339+5144 ZUC 16B sep 13.9 P.A. 33.20 mag 15.1 Sp K7.5 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 18339+5144 (BY Dra) : ALADIN DSS IMAGE @ 18h 33m 55.77s +51° 43' 08.9"
 
 
 
 
WDS 18339+5144 ZUC 16 (BY Dra) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18339+5144 ZUC 16 distance=0' 18345+5147 HDS2634 distance=7' 18323+5149 SLE 205 distance=16' 18314+5144 SLE 194AB distance=24' 18314+5144 SLE 194AC distance=24' 18372+5122 SLE 227 distance=38' 18319+5110 ES 784 distance=38' 18339+5221 A 1377AB distance=39' 18339+5221 STF2348AB,C distance=39' 18339+5221 SLE 216AB,D distance=39' 18339+5221 SLE 216AB,E distance=39' 18340+5058 ES 785AB distance=45' 18340+5058 ES 785AC distance=45' 18340+5058 ABH 102AD distance=45' 18344+5240 BEM 34 distance=57' 18340+5045 ES 786 distance=59' 18389+5221 STF2368AB distance=59' 18389+5221 STF2368AC distance=59' 18399+5106 ES 787 distance=68' 18414+5150 SLE 239 distance=70' 18387+5243 A 1379 distance=75' 18402+5048 COU2515 distance=81' 18417+5108 HU 754 distance=82' 18387+5300 SLE 232 distance=89' 18238+5139 ES 187AB distance=95' 18238+5139 ES 187AC distance=95' 18298+5314 TDT 911 distance=99' 18448+5201 HU 755 distance=102' 18277+5016 LEP 158 distance=106' 18456+5119 KPP4119AB distance=112' 18220+5122 UC 3560 distance=114' 18461+5212 MLR 637 distance=116' 18221+5222 ES 648 distance=116' 18466+5142 HU 756 distance=118' 18459+5228 RAO 398 distance=119' 18207+5131 RAO 388 distance=124' 18238+5318 YSC 66 distance=133' 18259+5338 FMR 140 distance=136' 18383+5353 A 1378AB distance=136' 18383+5353 A 1378AB,C distance=136' 18244+5331 BEM 33 distance=140' 18291+4928 UC 3589 distance=143' 18283+4930 TDT 896 distance=144' 18495+5157 UC 3685 distance=146' 18276+4926 COU2278 distance=152' 18265+5404 UC 3583 distance=157' 18182+5050 ES 647 distance=157' 18221+5336 BEM 32 distance=157' 18496+5048 UC 3686 distance=157' 18207+5330 TDT 808 distance=162' 18172+5103 AG 220 distance=162' 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 18339+5144 ZUC 16 47 17.0
Show 18345+5147 HDS2634 351 0.1 7
Show 18323+5149 SLE 205 59 9.7 16
Show 18314+5144 SLE 194 AB 213 7.8 24
Show 18314+5144 SLE 194 AC 109 16.1 24
Show 18372+5122 SLE 227 228 5.7 38
Show 18319+5110 ES 784 65 7.1 38
Show 18339+5221 A 1377 AB 134 0.2 39
Show 18339+5221 STF2348 AB,C 271 25.7 39
Show 18339+5221 SLE 216 AB,D 338 93.7 39
Show 18339+5221 SLE 216 AB,E 232 109.1 39
Show 18340+5058 ES 785 AB 98 9.4 45
Show 18340+5058 ES 785 AC 293 10.9 45
Show 18340+5058 ABH 102 AD 17 54.2 45
Show 18344+5240 BEM 34 26 10.5 57
Show 18340+5045 ES 786 323 5.9 59
Show 18389+5221 STF2368 AB 321 1.9 59
Show 18389+5221 STF2368 AC 125 36.6 59
Show 18399+5106 ES 787 38 8.3 68
Show 18414+5150 SLE 239 98 13.2 70
Show 18387+5243 A 1379 211 2.1 75
Show 18402+5048 COU2515 276 0.3 81
Show 18417+5108 HU 754 93 1.3 82
Show 18387+5300 SLE 232 219 14.6 89
Show 18238+5139 ES 187 AB 206 2.5 95
Show 18238+5139 ES 187 AC 124 91.3 95
Show 18298+5314 TDT 911 196 0.7 99
Show 18448+5201 HU 755 124 0.6 102
Show 18277+5016 LEP 158 238 5.1 106
Show 18456+5119 KPP4119 AB 24 18.5 112
Show 18220+5122 UC 3560 292 66.1 114
Show 18461+5212 MLR 637 102 0.8 116
Show 18221+5222 ES 648 1 5.0 116
Show 18466+5142 HU 756 263 1.0 118
Show 18459+5228 RAO 398 190 2.7 119
Show 18207+5131 RAO 388 51 0.2 124
Show 18238+5318 YSC 66 43 0.9 133
Show 18259+5338 FMR 140 84 16.2 136
Show 18383+5353 A 1378 AB 119 0.4 136
Show 18383+5353 A 1378 AB,C 273 14.1 136
Show 18244+5331 BEM 33 46 8.0 140
Show 18291+4928 UC 3589 32 17.0 143
Show 18283+4930 TDT 896 152 8.8 144
Show 18495+5157 UC 3685 147 73.5 146
Show 18276+4926 COU2278 15 1.4 152
Show 18265+5404 UC 3583 144 43.0 157
Show 18182+5050 ES 647 291 2.4 157
Show 18221+5336 BEM 32 315 7.9 157
Show 18496+5048 UC 3686 24 48.1 157
Show 18207+5330 TDT 808 271 2.2 162
Show 18172+5103 AG 220 126 10.9 162

 
 
WDS 18339+5144 : COMPONENTS
 
 
  A
B pa=33.2°
sep=13.93"
 
 
18339+5144 A
 
 
Componente originario normalizzato AB Name BY Dra Coord arcsec 2000 183355.77+514308.9 Mag 8.45
Spectral class K4V (yellow-orange) PmRA 186.00 PmDE -323.0 SAO 31048
HIP 91009 Tycho2 3539-02623-1 HD 234677 GC 25394
BD BD+51 2402
Tycho2
Tycho2 3539-02623-1 Pflag RAmdeg 278.48239558 DEmdeg 51.71913356
PmRA 186.0 PmDE -325.9 E RAmdeg 7 E DEmdeg 8
E pmRA 1.3 E pmDE 1.3 EpRAm 1990.93 EpDEm 1990.94
Num 10 Q RAmdeg 1.0 Q DEmdeg 0.8 Q pmRA 0.9
Q pmDE 0.7 BTmag 9.708 E BTmag 0.023 VTmag 8.313
E VTmag 0.013 Prox 999 TYC T HIP 91009
CCDM RAdeg 278.48170194 DEdeg 51.71987722 EpRA 1990 1.70
EpDE 1990 1.78 E RAdeg 8.2 E DEdeg 8.6 Posflg
Corr 0.0
SAO
SAO 31048 DelFlag RA1950 PmRA1950 0.0197
DE1950 PmDE1950 -0.311 Vmag 8.3 SpType M1
Double code Source 70 CatNum 25394 DM BD+51 2402
DMcomp BDsup HD 234677 M HD 0
GC 25394 RA1950rad 4.8552679 DE1950rad 0.9020471 PmRA2000 0.0206
PmDE2000 -0.309
Hipparcos
Catalog H HIP 91009 Proxy RAhms 18 33 55.60
DEdms +51 43 11.7 Vmag 8.2 VarFlag R Vmag G
RAdeg 278.482 DEdeg 51.7199 AstroRef + Plx 60.9
CCDM N CCDM Nsys Ncomp 1
MultFlag O Source Qual M HIP
Theta Rho HD 234677 BD BD+51 2402
CD CP Dm number +51 2402 VIred 1.14
SpType K7Vvar R SpType Coord arcsec 2000 183355.60+514311.7
Hipparcos 2
HIP 91009 Sn 75 So 4 Nc 1
RArad 4.8604217736 DErad 0.902683069 Plx 61.15 PmRA 186.51
PmDE -324.69 E RArad 0.65 E DErad 0.58 E Plx 0.68
E pmRA 0.72 E pmDE 0.67 Hpmag 8.2861 E Hpmag 0.0065
SHp 0.067 VA 2 BV 1.265 E BV 0.01
VI 1.44
 
 
18339+5144 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 183356.59+514320.6 Mag 15.1 Spectral class K7.5 (yellow-orange)
Calc delta mag 6.65 Calc coord yes