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Doubles in session


Current system
18440+0321
A 2388
HD 173196


Nearby doubles
17' : 18429+0324
BAL2499

18' : 18436+0337
TDT1019

26' : 18439+0346
TDS 939

27' : 18425+0334
J 464AB

31' : 18449+0253
HEI 562

44' : 18464+0259
BAL1970

44' : 18439+0237
STF2369

50' : 18410+0302
BU 1328

50' : 18473+0323
LDS5866

53' : 18406+0307
STF2361

59' : 18401+0321
AG 224

66' : 18386+0236
HJ 5500AB

68' : 18424+0218
BAL1969

70' : 18393+0315
BAL2498AB

71' : 18465+0420
TDT1050

82' : 18425+0439
HJ 866AB

83' : 18413+0433
J 2143

84' : 18436+0444
A 357

87' : 18454+0444
BAL2935

93' : 18468+0443
TDT1051

96' : 18380+0248
LDS5240

97' : 18379+0352
KPP 421

99' : 18375+0313
ARY 15

99' : 18481+0203
J 2530

100' : 18382+0410
TDT 968

102' : 18456+0142
A 2262



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.

18440+0321 A 2388 (HD 173196)

 
 
18h 43m 59.30s +03° 20' 38.2" P.A. 131.00 sep 0.3 mag 8.59,9.56 Sp A0 dist. 209.64 pc (683.85 l.y.)
 
 
Coord 2000 18440+0321 Discov num A  2388 Comp Coord arcsec 2000 18 43 59.30 +03 20 38.2
Date first 1910 Date last 2017 Obs 24
Pa first 56 Pa last 130.8 P.A. Now (θ) 130.8°
Sep first 0.3 Sep last 0.261 Sep. Now (ρ) 0.261"
Mag pri 8.59 Mag sec 9.56 delta mag (ΔM) 0.97 Spectral class A0 (white)
Pri motion ra +004 Sec motion ra
Pri motion dec -018 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 173196 Constellation Serpens SAO 123862 HIP 91893
Tycho2 0451-00548-1 Gaia DR2 4280238139460761728 HD 173196 ADS 11619
BD BD+03 3787 Distance 209.64 Distance ly 683.85
 
 
ORBITAL ELEMENTS
 
 
Period (P)330y Periastron (T)1942.4y Semi-major axis (a)0.453a
Eccentricity (e)0.85 Inclination (i)70.3° Longitude of periastron (ω)96°
Node (Ω)254.7° Notes ReferenceFMR2014c
Equinox2000 Last observation2012 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 122.5 0.251
2001 123.1 0.252
2002 123.7 0.252
2003 124.4 0.252
2004 125.0 0.253
2005 125.6 0.253
2006 126.2 0.253
2007 126.9 0.254
2008 127.5 0.254
2009 128.1 0.254
2010 128.7 0.254
2011 129.3 0.255
2012 129.9 0.255
2013 130.5 0.255
2014 131.2 0.255
2015 131.8 0.255
2016 132.4 0.256
2017 133.0 0.256
2018 133.6 0.256
2019 134.2 0.256
2020 134.8 0.257
2021 135.4 0.257
2022 136.0 0.257
2023 136.6 0.257
2024 137.2 0.258
2025 137.8 0.258
2026 138.4 0.258
2027 139.0 0.258
2028 139.6 0.258
2029 140.2 0.259
2030 140.8 0.259


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


 
  


wds18440%2B0321a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 18440+0321 A 2388 (HD 173196) : NOTES
 
 
discov_num notes refcode
A 2388 Rectilinear solution by Rica & Zirm (2012). FMR2012i
 
 
REFERENCES
 
 
refcode metd author reference
FMR2012i orb - Rica Romero, F.M. & Zirm, H. 2012IAUDS.177Q...1R
FMR2012i Inf. Circ. 177, 1, 2012
FMR2014c orb - Rica Romero, F.M. & Zirm, H. 2014IAUDS.183Q...1R
FMR2014c +lin Inf. Circ. 183, 1, 2014
 
 
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
18440+0321 A 2388 1995 19 121 0.2 8.59 9.56 A0 184359.30+032038.2
18440+0321 A 2388 2017 20 131 0.3 8.59 9.56 A0 O 184359.30+032038.2

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

 
 
WDS 18440+0321 A 2388 (HD 173196) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18440+0321 A 2388 (HD 173196) : MEASURES
 
 
No records found.

 
 
WDS 18440+0321 (HD 173196) : VIRTUAL EYEPIECE
 
 

18440+0321 A 2388A mag 8.59 Sp A0 18440+0321 A 2388B sep 0.3 P.A. 130.80 mag 9.56 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 18440+0321 (HD 173196) : ALADIN DSS IMAGE @ 18h 43m 59.30s +03° 20' 38.2"
 
 
 
 
WDS 18440+0321 A 2388 (HD 173196) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18440+0321 A 2388 distance=0' 18429+0324 BAL2499 distance=17' 18436+0337 TDT1019 distance=18' 18439+0346 TDS 939 distance=26' 18425+0334 J 464AB distance=27' 18425+0334 J 464AC distance=27' 18449+0253 HEI 562 distance=31' 18464+0259 BAL1970 distance=44' 18439+0237 STF2369 distance=44' 18410+0302 BU 1328 distance=50' 18473+0323 LDS5866 distance=50' 18406+0307 STF2361 distance=53' 18401+0321 AG 224 distance=59' 18386+0236 HJ 5500AB distance=66' 18386+0236 DAM 381AC distance=66' 18386+0236 SKF2135AD distance=66' 18424+0218 BAL1969 distance=68' 18393+0315 BAL2498AB distance=70' 18393+0315 BAL2498AC distance=70' 18465+0420 TDT1050 distance=71' 18425+0439 HJ 866AB distance=82' 18425+0439 HJ 866AC distance=82' 18413+0433 J 2143 distance=83' 18436+0444 A 357 distance=84' 18454+0444 BAL2935 distance=87' 18468+0443 TDT1051 distance=93' 18380+0248 LDS5240 distance=96' 18379+0352 KPP 421 distance=97' 18375+0313 ARY 15 distance=99' 18481+0203 J 2530 distance=99' 18382+0410 TDT 968 distance=100' 18456+0142 A 2262 distance=102' 18433+0502 J 527 distance=102' 18374+0238 BU 1327 distance=108' 18465+0504 KPP4120 distance=110' 18379+0432 BAL2932 distance=115' 18514+0351 DOO 72 distance=116' 18388+0446 RAO 395 distance=116' 18473+0136 TDT1055 distance=116' 18425+0518 TDT1014 distance=120' 18387+0451 STT 360 distance=121' 18379+0451 LDS5241 distance=128' 18360+0234 STN 43 distance=129' 18357+0239 TDT 950 distance=131' 18455+0530 FIN 332Aa,Ab distance=132' 18455+0530 STF2375AB distance=132' 18455+0530 FIN 332Ba,Bb distance=132' 18385+0504 BAL2933 distance=133' 18525+0420 J 2155 distance=138' 18437+0539 STT 361 distance=139' 18534+0323 STF2413 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 18440+0321 A 2388 131 0.3
Show 18429+0324 BAL2499 319 11.5 17
Show 18436+0337 TDT1019 132 0.4 18
Show 18439+0346 TDS 939 68 1.3 26
Show 18425+0334 J 464 AB 110 0.9 27
Show 18425+0334 J 464 AC 134 3.4 27
Show 18449+0253 HEI 562 253 0.4 31
Show 18464+0259 BAL1970 253 2.8 44
Show 18439+0237 STF2369 25 0.3 44
Show 18410+0302 BU 1328 283 2.1 50
Show 18473+0323 LDS5866 294 7.1 50
Show 18406+0307 STF2361 211 24.9 53
Show 18401+0321 AG 224 348 22.1 59
Show 18386+0236 HJ 5500 AB 40 84.0 66
Show 18386+0236 DAM 381 AC 228 14.2 66
Show 18386+0236 SKF2135 AD 238 54.4 66
Show 18424+0218 BAL1969 279 21.4 68
Show 18393+0315 BAL2498 AB 64 6.6 70
Show 18393+0315 BAL2498 AC 109 14.8 70
Show 18465+0420 TDT1050 134 0.5 71
Show 18425+0439 HJ 866 AB 83 17.7 82
Show 18425+0439 HJ 866 AC 322 12.7 82
Show 18413+0433 J 2143 319 15.2 83
Show 18436+0444 A 357 71 0.6 84
Show 18454+0444 BAL2935 161 5.8 87
Show 18468+0443 TDT1051 168 1.6 93
Show 18380+0248 LDS5240 6 3.3 96
Show 18379+0352 KPP 421 99 3.9 97
Show 18375+0313 ARY 15 142 153.6 99
Show 18481+0203 J 2530 232 1.4 99
Show 18382+0410 TDT 968 35 0.4 100
Show 18456+0142 A 2262 325 1.2 102
Show 18433+0502 J 527 40 3.2 102
Show 18374+0238 BU 1327 174 13.6 108
Show 18465+0504 KPP4120 1 1.8 110
Show 18379+0432 BAL2932 297 18.3 115
Show 18514+0351 DOO 72 52 31.5 116
Show 18388+0446 RAO 395 153 0.4 116
Show 18473+0136 TDT1055 89 0.4 116
Show 18425+0518 TDT1014 339 0.7 120
Show 18387+0451 STT 360 282 1.7 121
Show 18379+0451 LDS5241 329 29.8 128
Show 18360+0234 STN 43 28 10.1 129
Show 18357+0239 TDT 950 262 0.5 131
Show 18455+0530 FIN 332 Aa,Ab 142 0.0 132
Show 18455+0530 STF2375 AB 120 2.6 132
Show 18455+0530 FIN 332 Ba,Bb 324 0.1 132
Show 18385+0504 BAL2933 235 19.3 133
Show 18525+0420 J 2155 276 8.1 138
Show 18437+0539 STT 361 172 22.6 139
Show 18534+0323 STF2413 200 10.3 141

 
 
WDS 18440+0321 : COMPONENTS
 
 
  A
B pa=130.8°
sep=0.26"
 
 
18440+0321 A
 
 
Componente originario normalizzato AB Name HD 173196 Coord arcsec 2000 184359.30+032038.2 Mag 8.59
Spectral class A0 (white) PmRA 4.00 PmDE -18.0 SAO 123862
HIP 91893 Tycho2 0451-00548-1 HD 173196 BD BD+03 3787
Tycho2
Tycho2 0451-00548-1 Pflag RAmdeg 280.99706128 DEmdeg 3.34394222
PmRA -1.9 PmDE -6.9 E RAmdeg 5 E DEmdeg 6
E pmRA 1.4 E pmDE 1.3 EpRAm 1991.59 EpDEm 1991.34
Num 8 Q RAmdeg 0.8 Q DEmdeg 1.2 Q pmRA 0.7
Q pmDE 1.3 BTmag 8.294 E BTmag 0.016 VTmag 8.209
E VTmag 0.012 Prox 999 TYC T HIP 91893
CCDM AB RAdeg 280.99706528 DEdeg 3.34395778 EpRA 1990 1.82
EpDE 1990 1.74 E RAdeg 5.2 E DEdeg 5.7 Posflg P
Corr -0.2
SAO
SAO 123862 DelFlag RA1950 PmRA1950 -0.0001
DE1950 PmDE1950 -0.011 Vmag 8.4 SpType A0
Double code Source 30 CatNum 6347 DM BD+03 3787
DMcomp BDsup HD 173196 M HD 0
GC RA1950rad 4.8934173 DE1950rad 0.05746192 PmRA2000 0.0001
PmDE2000 -0.012
Hipparcos
Catalog H HIP 91893 Proxy H RAhms 18 43 59.30
DEdms +03 20 38.2 Vmag 8.19 VarFlag R Vmag H
RAdeg 280.997 DEdeg 3.34396 AstroRef * Plx 3.45
CCDM 18440+0321 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 117 Rho 0.248 HD 173196 BD BD+03 3787
CD CP Dm number +03 3787 VIred 0.1
SpType A0 R SpType Coord arcsec 2000 184359.30+032038.2
Hipparcos 2
HIP 91893 Sn 55 So 3 Nc 2
RArad 4.9043240401 DErad 0.0583630662 Plx 4.77 PmRA -3.02
PmDE -7.77 E RArad 0.78 E DErad 0.56 E Plx 0.93
E pmRA 0.79 E pmDE 0.66 Hpmag 8.2199 E Hpmag 0.0011
SHp 0.012 VA 0 BV 0.069 E BV 0.013
VI 0.08
CCDM
Ccdm 18440+0321 RComp Comp A Note1
Note2 Discov num DRAs -0.70 DDEs -22.5
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.1 Sp A0 PmNote *
PmRA 7 PmDE -24 Dm number +03 3787 Cat1 BD
Name2 +03 2319 Cat2 AGK2/3 HD 173196 M HD
ADS BDS A11619 M ADS BDS N IDS IDS 18390N0315A
HIC 91893
 
 
18440+0321 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 184359.31+032038.0 Mag 9.56 Calc delta mag 0.97
Calc coord yes
CCDM
Ccdm 18440+0321 RComp Comp B Note1
Note2 Discov num A 2388 DRAs DDEs
R dRAs Year 1957 Theta 092 Rho 0.3
Obs 11 Vmag 9.6 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11619 M ADS BDS N IDS IDS 18390N0315B
HIC 91893