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Doubles in session


Current system
18178+4351
A 578 Aa,Ab


Nearby doubles
2' : 18180+4351
UC 3549

8' : 18173+4355
A 577

17' : 18181+4334
A 579

19' : 18176+4409
RAO 386

37' : 18156+4417
ES 1420AB

37' : 18162+4423
ES 1421

40' : 18179+4311
KPP4103

58' : 18199+4258
ES 474

62' : 18132+4315
A 576

63' : 18120+4355
ES 1419

66' : 18197+4453
ES 2665AB

75' : 18231+4439
COU1927

79' : 18182+4509
HDS2588

80' : 18130+4251
ES 473AB

81' : 18188+4510
WOL 2

90' : 18097+4334
CVR 868

92' : 18258+4321
BRT1917

96' : 18254+4440
BVD 262

97' : 18264+4326
HDS2606

97' : 18094+4319
ES 1418

101' : 18221+4222
RAO 390

101' : 18240+4236
KPP 963

102' : 18092+4314
ES 1417AB

103' : 18274+4355
POP 134AB

104' : 18084+4407
HDS2554

108' : 18242+4228
COU1788AB



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

18178+4351 A 578 Aa,Ab

 
 
18h 17m 49.51s +43° 50' 32.0" P.A. 244.00 sep 0.3 mag 9.55,10.64 Sp F8 dist. 129.03 pc (420.9 l.y.)
 
 
Coord 2000 18178+4351 Discov num A   578 Comp Aa,Ab Coord arcsec 2000 18 17 49.51 +43 50 32.0
Date first 1903 Date last 2014 Obs 42
Pa first 28 Pa last 243.7 P.A. Now (θ) 243.7°
Sep first 0.2 Sep last 0.33 Sep. Now (ρ) 0.33"
Mag pri 9.55 Mag sec 10.64 delta mag (ΔM) 1.09 Spectral class F8 (yellow-white)
Pri motion ra -019 Sec motion ra
Pri motion dec -010 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
18178+4351 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 18 17 50 +43 50 32 A 578 Aa,Ab 2014 42 244 0.3 9.55 10.64 1.09 Y <===
Show 18 17 50 +43 50 32 A 578 AB 2014 26 167 1.8 9.13 12.24 3.11
Triple system
2 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Lyra HIP 89655 Tycho2 3115-00363-1 Gaia DR2 2114710062530870912
ADS 11247 BD BD+43 2938 Distance 129.03 Distance ly 420.9
 
 
ORBITAL ELEMENTS
 
 
Period (P)143.769y Periastron (T)2032.26y Semi-major axis (a)0.2859a
Eccentricity (e)0.6032 Inclination (i)121.1° Longitude of periastron (ω)262.7°
Node (Ω)27° Notes ReferenceOle2001
Equinox Last observation1997 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 249.6 0.235
2001 248.0 0.235
2002 246.5 0.235
2003 245.0 0.234
2004 243.4 0.234
2005 241.9 0.234
2006 240.3 0.233
2007 238.8 0.232
2008 237.2 0.232
2009 235.6 0.230
2010 234.0 0.229
2011 232.4 0.228
2012 230.8 0.226
2013 229.1 0.223
2014 227.4 0.221
2015 225.6 0.218
2016 223.8 0.215
2017 222.0 0.211
2018 220.0 0.206
2019 218.0 0.201
2020 215.9 0.196
2021 213.6 0.189
2022 211.2 0.182
2023 208.5 0.174
2024 205.5 0.164
2025 202.2 0.154
2026 198.3 0.142
2027 193.7 0.129
2028 188.1 0.115
2029 180.7 0.100
2030 170.7 0.085


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


 
  


wds18178%2B4351a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 18178+4351 A 578 Aa,Ab : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Ole2001 orb - Olevic, D. & Jovanovic, P. 2001SerAJ.163....5O
Ole2001 SerAJ 163, 5, 2001
 
 
DISCOVERER
 
 
idgroup discov author
1 A Aitken, R.G.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18178+4351 A 578 Aa,Ab 1997 27 262 0.3 9.55 10.64 F8 NOD 181749.51+435032.0
18178+4351 A 578 Aa,Ab 2006 28 251 0.3 9.55 10.64 F8 NOD 181749.51+435032.0
18178+4351 A 578 Aa,Ab 2009 29 247 0.3 9.55 10.64 F8 NOD 181749.51+435032.0
18178+4351 A 578 Aa,Ab 2010 30 246 0.3 9.55 10.64 F8 O 181749.51+435032.0
18178+4351 A 578 Aa,Ab 2012 35 244 0.3 9.55 10.64 F8 O 181749.51+435032.0
18178+4351 A 578 Aa,Ab 2013 41 246 0.3 9.55 10.64 F8 O 181749.51+435032.0
18178+4351 A 578 Aa,Ab 2014 42 244 0.3 9.55 10.64 F8 O 181749.51+435032.0

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

 
 
WDS 18178+4351 A 578 Aa,Ab : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18178+4351 A 578 Aa,Ab : MEASURES
 
 
No records found.

 
 
WDS 18178+4351 : VIRTUAL EYEPIECE
 
 

18178+4351 A 578A mag 9.13 Sp F8 18178+4351 A 578Ab sep 0.3 P.A. 235.60 mag 10.64 18178+4351 A 578B sep 1.8 P.A. 170.60 mag 12.24 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 18178+4351 : ALADIN DSS IMAGE @ 18h 17m 49.51s +43° 50' 32.0"
 
 
 
 
WDS 18178+4351 A 578 Aa,Ab : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18178+4351 A 578Aa,Ab distance=0' 18180+4351 UC 3549 distance=2' 18173+4355 A 577 distance=8' 18181+4334 A 579 distance=17' 18176+4409 RAO 386 distance=19' 18156+4417 ES 1420AB distance=37' 18156+4417 ES 1420AC distance=37' 18162+4423 ES 1421 distance=37' 18179+4311 KPP4103 distance=40' 18199+4258 ES 474 distance=58' 18132+4315 A 576 distance=62' 18120+4355 ES 1419 distance=63' 18197+4453 ES 2665AB distance=66' 18197+4453 WAL 90AC distance=66' 18231+4439 COU1927 distance=75' 18130+4251 ES 473BC distance=79' 18182+4509 HDS2588 distance=79' 18130+4251 ES 473AB distance=80' 18130+4251 SLV 6AC distance=80' 18188+4510 WOL 2 distance=81' 18097+4334 CVR 868 distance=90' 18258+4321 BRT1917 distance=92' 18254+4440 BVD 262 distance=96' 18264+4326 HDS2606 distance=97' 18094+4319 ES 1418 distance=97' 18221+4222 RAO 390 distance=101' 18240+4236 KPP 963 distance=101' 18092+4314 ES 1417AB distance=102' 18092+4314 ES 1417BC distance=102' 18274+4355 POP 134CD distance=102' 18274+4355 POP 134AB distance=103' 18274+4355 POP 134AC distance=103' 18084+4407 HDS2554 distance=104' 18083+4406 KPP4086CD distance=104' 18109+4242 ROE 6CD distance=108' 18242+4228 COU1788AB distance=108' 18242+4228 GII 266Aa,Ab distance=108' 18109+4242 ROE 5AB distance=111' 18109+4242 ROE 5AC distance=111' 18072+4430 BRT1914 distance=122' 18103+4521 LDS4777 distance=122' 18291+4356 MET 84 distance=122' 18291+4356 KPP3330AC distance=122' 18227+4200 KPP4393BC distance=123' 18227+4200 SKF 320AB distance=123' 18224+4545 A 700 distance=125' 18108+4212 TDT 724 distance=126' 18284+4444 HDS2616 distance=126' 18294+4328 GCB 32 distance=127' 18242+4540 UC 240 distance=129' 18297+4400 COU1789 distance=130' 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 18178+4351 A 578 Aa,Ab 244 0.3
Show 18178+4351 A 578 AB 167 1.8
Show 18180+4351 UC 3549 159 20.7 2
Show 18173+4355 A 577 304 0.7 8
Show 18181+4334 A 579 340 1.5 17
Show 18176+4409 RAO 386 228 0.4 19
Show 18156+4417 ES 1420 AB 66 8.3 37
Show 18156+4417 ES 1420 AC 9 14.6 37
Show 18162+4423 ES 1421 345 11.8 37
Show 18179+4311 KPP4103 295 1.9 40
Show 18199+4258 ES 474 41 3.0 58
Show 18132+4315 A 576 282 0.4 62
Show 18120+4355 ES 1419 320 10.4 63
Show 18197+4453 ES 2665 AB 21 9.9 66
Show 18197+4453 WAL 90 AC 334 77.1 66
Show 18231+4439 COU1927 27 1.1 75
Show 18130+4251 ES 473 BC 173 22.5 79
Show 18182+4509 HDS2588 31 0.4 79
Show 18130+4251 ES 473 AB 98 30.7 80
Show 18130+4251 SLV 6 AC 129 42.8 80
Show 18188+4510 WOL 2 183 1.3 81
Show 18097+4334 CVR 868 207 28.7 90
Show 18258+4321 BRT1917 53 3.6 92
Show 18254+4440 BVD 262 327 15.6 96
Show 18264+4326 HDS2606 49 1.0 97
Show 18094+4319 ES 1418 303 4.3 97
Show 18221+4222 RAO 390 234 3.3 101
Show 18240+4236 KPP 963 72 7.9 101
Show 18092+4314 ES 1417 AB 206 13.9 102
Show 18092+4314 ES 1417 BC 277 4.2 102
Show 18274+4355 POP 134 CD 250 4.6 102
Show 18274+4355 POP 134 AB 62 7.7 103
Show 18274+4355 POP 134 AC 285 66.8 103
Show 18084+4407 HDS2554 205 0.1 104
Show 18083+4406 KPP4086 CD 236 2.9 104
Show 18109+4242 ROE 6 CD 228 11.1 108
Show 18242+4228 COU1788 AB 142 3.0 108
Show 18242+4228 GII 266 Aa,Ab 124 0.1 108
Show 18109+4242 ROE 5 AB 115 14.9 111
Show 18109+4242 ROE 5 AC 32 193.5 111
Show 18072+4430 BRT1914 160 4.1 122
Show 18103+4521 LDS4777 60 56.3 122
Show 18291+4356 MET 84 40 10.1 122
Show 18291+4356 KPP3330 AC 242 20.2 122
Show 18227+4200 KPP4393 BC 218 26.7 123
Show 18227+4200 SKF 320 AB 193 1.5 123
Show 18224+4545 A 700 128 0.6 125
Show 18108+4212 TDT 724 56 0.5 126
Show 18284+4444 HDS2616 62 0.1 126
Show 18294+4328 GCB 32 76 5.5 127
Show 18242+4540 UC 240 314 63.6 129

 
 
WDS 18178+4351 : COMPONENTS
 
 
  A Ab
Ab pa=235.6°
sep=0.26"
 
B pa=170.6°
sep=1.82"
pa=162.8°
sep=1.72"
 
 
18178+4351 A
 
 
Coord arcsec 2000 181749.51+435032.0 Mag 9.13 Spectral class F8 (yellow-white) PmRA -19.00
PmDE -10.0 HIP 89655 Tycho2 3115-00363-1 BD BD+43 2938
Tycho2
Tycho2 3115-00363-1 Pflag RAmdeg 274.45628199 DEmdeg 43.84222205
PmRA -18.6 PmDE -9.9 E RAmdeg 10 E DEmdeg 10
E pmRA 1.0 E pmDE 1.0 EpRAm 1990.28 EpDEm 1990.23
Num 7 Q RAmdeg 1.3 Q DEmdeg 1.0 Q pmRA 1.3
Q pmDE 1.1 BTmag 9.707 E BTmag 0.021 VTmag 9.125
E VTmag 0.017 Prox 18 TYC T HIP 89655
CCDM AB RAdeg 274.45634194 DEdeg 43.84224611 EpRA 1990 1.54
EpDE 1990 1.64 E RAdeg 10.2 E DEdeg 10.1 Posflg P
Corr -0.1
Hipparcos
Catalog H HIP 89655 Proxy H RAhms 18 17 49.53
DEdms +43 50 32.1 Vmag 9.03 VarFlag R Vmag H
RAdeg 274.456 DEdeg 43.8422 AstroRef A Plx 7.94
CCDM 18178+4351 N CCDM I Nsys 1 Ncomp 3
MultFlag C Source Qual B M HIP
Theta Rho HD BD BD+43 2938
CD CP Dm number +43 2938 VIred 0.61
SpType F8 R SpType Coord arcsec 2000 181749.53+435032.1
Hipparcos 2
HIP 89655 Sn 15 So 3 Nc 3
RArad 4.7901674926 DErad 0.7651915504 Plx 7.75 PmRA -21.07
PmDE -11.55 E RArad 0.98 E DErad 0.77 E Plx 0.98
E pmRA 1.12 E pmDE 0.92 Hpmag 9.1482 E Hpmag 0.0018
SHp 0.016 VA 0 BV 0.6 E BV 0.495
VI 0.61
CCDM
Ccdm 18178+4351 RComp Comp A Note1
Note2 Discov num DRAs 1.45 DDEs -28.2
R dRAs 10 Year Theta Rho
Obs 3 Vmag 9.2 Sp PmNote *
PmRA -29 PmDE -10 Dm number +43 2938 Cat1 BD
Name2 +43 1505 Cat2 AGK2/3 HD M HD
ADS BDS A11247 M ADS BDS N IDS IDS 18148N4348A
HIC 89655
 
 
18178+4351 Ab
 
 
Coord arcsec 2000 181749.49+435031.9 Mag 10.64 Calc delta mag 1.09 Calc coord yes
 
 
18178+4351 B
 
 
Coord arcsec 2000 181749.54+435030.2 Mag 12.24 PmRA -20.00 PmDE -10.0
Calc delta mag 2.69 Calc coord yes
CCDM
Ccdm 18178+4351 RComp Comp B Note1 *
Note2 Discov num A 578 DRAs DDEs
R dRAs Year 1959 Theta 308 Rho 0.3
Obs 12 Vmag 9.9 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11247 M ADS BDS N IDS IDS 18148N4348B
HIC 89655