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Doubles in session


Current system
21158-5316
FIN 329
HD 202103


Nearby doubles
39' : 21199-5327
HJ 5258AB

40' : 21199-5331
ARY 79

48' : 21208-5302
LWR 18AB

56' : 21098-5302
UC 4393

66' : 21174-5419
RST3282

66' : 21161-5421
TDT2870

66' : 21209-5229
UC 4449

67' : 21210-5229
CVN 66AB

69' : 21114-5220
HU 1626

77' : 21141-5428
LDS 735

90' : 21218-5428
UC 4458

92' : 21104-5434
HJ 5246

96' : 21164-5451
HDS3026

97' : 21263-5257
RST1089

98' : 21098-5155
RST1084

100' : 21233-5429
TVB 319

104' : 21230-5157
I 132

105' : 21192-5455
BRT3188

108' : 21135-5129
BRT1117

110' : 21244-5435
HU 1537

113' : 21168-5123
BVD 136

118' : 21031-5246
RST1080

120' : 21154-5117
NSN 449

123' : 21042-5423
HDS3000

126' : 21056-5151
I 1433

127' : 21064-5143
NSN 453



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.

21158-5316 FIN 329 (HD 202103)

 
 
21h 15m 45.84s -53° 15' 47.0" P.A. 92.00 sep 0.2 mag 6.33,6.80 Sp A6IV dist. 131.23 pc (428.07 l.y.)
 
 
Coord 2000 21158-5316 Discov num FIN 329 Comp Coord arcsec 2000 21 15 45.84 -53 15 47.0
Date first 1951 Date last 2020 Obs 31
Pa first 82 Pa last 92 P.A. Now (θ) 84.3°
Sep first 0.2 Sep last 0.157 Sep. Now (ρ) 0.184"
Mag pri 6.33 Mag sec 6.80 delta mag (ΔM) 0.47 Spectral class A6IV (white)
Pri motion ra +035 Sec motion ra
Pri motion dec -018 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 202103 Constellation Indus SAO 246929 HIP 104978
Tycho2 8793-00796-1 Gaia DR2 6464469665075523840 HD 202103 HR 8114
GC 29704 CP CP-5310015 FK5 796 Distance 131.23
Distance ly 428.07
 
 
ORBITAL ELEMENTS SOLUTION #1
 
 
Period (P)36.86y Periastron (T)2003.19y Semi-major axis (a)0.176a
Eccentricity (e)0.054 Inclination (i)112.8° Longitude of periastron (ω)160.2°
Node (Ω)81.3° Notesn ReferenceTok2020g
Equinox2000 Last observation2018 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 289.7 0.111
2001 281.6 0.129
2002 275.3 0.144
2003 270.1 0.156
2004 265.6 0.164
2005 261.3 0.167
2006 257.1 0.165
2007 252.7 0.159
2008 247.7 0.148
2009 241.9 0.134
2010 234.5 0.118
2011 224.5 0.100
2012 210.5 0.084
2013 191.0 0.072
2014 167.1 0.070
2015 144.7 0.077
2016 127.8 0.091
2017 116.0 0.109
2018 107.5 0.127
2019 101.1 0.144
2020 96.0 0.159
2021 91.7 0.171
2022 87.8 0.179
2023 84.3 0.184
2024 80.9 0.185
2025 77.4 0.182
2026 73.7 0.175
2027 69.6 0.164
2028 64.9 0.150
2029 59.1 0.133
2030 51.4 0.115


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


 
  


wds21158-5316e.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
ORBITAL ELEMENTS SOLUTION #2
 
 
Period (P)17.85y± 0.18 Periastron (T)2013.69y± 0.032 Semi-major axis (a)0.093a± 0.001
Eccentricity (e)0.733± 0.006 Inclination (i)180°± 0 Longitude of periastron (ω)0°± 0
Node (Ω)263.6°± 0.4 Notesn ReferenceTok2021f
Equinox2000 Last observation2020 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 109.0 0.127
2001 102.4 0.141
2002 96.8 0.150
2003 91.8 0.157
2004 87.1 0.160
2005 82.5 0.161
2006 77.9 0.159
2007 73.1 0.154
2008 67.8 0.146
2009 61.8 0.135
2010 54.5 0.120
2011 44.7 0.100
2012 29.1 0.075
2013 352.4 0.042
2014 211.0 0.030
2015 147.6 0.063
2016 127.4 0.091
2017 116.0 0.113
2018 108.0 0.130
2019 101.5 0.142
2020 96.1 0.151
2021 91.1 0.157
2022 86.4 0.161
2023 81.8 0.161
2024 77.2 0.158
2025 72.3 0.153
2026 67.0 0.145
2027 60.8 0.133
2028 53.2 0.117
2029 42.8 0.097
2030 25.7 0.070


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


 
  


wds21158-5316f.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 21158-5316 FIN 329 (HD 202103) : NOTES
 
 
discov_num notes refcode
FIN 329 Malkov et al. (2012) derive dynamical, photometric, and spectroscopic
masses of 05.99 +/- 37.68, 3.70, and 1.88 Msun, respectively. Mlk2012
Docobo & Andrade (2013) derive a dynamical parallax of 8.36 +/- 0.17
mas and component masses 2.32 +/- 0.18 and 2.09 +/- 0.16 Msun (for
spectral type A2.5V) or 8.74 +/- 0.17 mas, 2.04 +/- 0.15 and 1.82 +/-
0.14 Msun (for A6IV). See paper for extensive notes on this system. Doc2013d
 
 
REFERENCES
 
 
refcode metd author reference
Doc2013d orb - Docobo, J.A. & Andrade, M. 2013MNRAS.428..321D
Doc2013d MNRAS 428, 321, 2013
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
Tok2020g orb - Tokovinin, A. 2020IAUDS.201....1A
Tok2020g Inf. Circ. 201, 1, 2020
Tok2021f orb - Tokovinin, A. 2021IAUDS.204....1T
Tok2021f Inf. Circ. 204, 1, 2021
 
 
DISCOVERER
 
 
idgroup discov author
1 FIN Finsen, W.S.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21158-5316 FIN 329 1991 20 64 0.1 6.33 6.80 A6IV NO 211545.84-531547.0
21158-5316 FIN 329 2008 23 64 0.1 6.33 6.80 A6IV NO 211545.84-531547.0
21158-5316 FIN 329 2009 25 57 0.1 6.33 6.80 A6IV NOD 211545.84-531547.0
21158-5316 FIN 329 2014 26 335 0.1 6.33 6.80 A6IV NO 211545.84-531547.0
21158-5316 FIN 329 2015 27 136 0.1 6.33 6.80 A6IV NO 211545.84-531547.0
21158-5316 FIN 329 2017 29 111 0.1 6.33 6.80 A6IV NO 211545.84-531547.0
21158-5316 FIN 329 2018 30 105 0.1 6.33 6.80 A6IV NO 211545.84-531547.0
21158-5316 FIN 329 2020 31 92 0.2 6.33 6.80 A6IV NO 211545.84-531547.0

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

 
 
WDS 21158-5316 FIN 329 (HD 202103) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21158-5316 FIN 329 (HD 202103) : MEASURES
 
 
No records found.

 
 
WDS 21158-5316 (HD 202103) : VIRTUAL EYEPIECE
 
 

21158-5316 FIN 329A mag 6.33 Sp A6IV 21158-5316 FIN 329B sep 0.1 P.A. 93.30 mag 6.8 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 21158-5316 (HD 202103) : ALADIN DSS IMAGE @ 21h 15m 45.84s -53° 15' 47.0"
 
 
 
 
WDS 21158-5316 FIN 329 (HD 202103) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21158-5316 FIN 329 distance=0' 21199-5327 HJ 5258AB distance=39' 21199-5327 MRN 3Aa,Ab distance=39' 21199-5331 ARY 79 distance=40' 21208-5302 LWR 18AB distance=48' 21208-5302 SHY 340AC distance=48' 21098-5302 UC 4393 distance=56' 21174-5419 RST3282 distance=66' 21161-5421 TDT2870 distance=66' 21209-5229 UC 4449 distance=66' 21210-5229 CVN 66AB distance=67' 21210-5229 CVN 66AC distance=67' 21210-5229 CVN 66Aa,Ab distance=67' 21114-5220 HU 1626 distance=69' 21141-5428 LDS 735 distance=77' 21218-5428 UC 4458 distance=90' 21104-5434 HJ 5246 distance=92' 21164-5451 HDS3026 distance=96' 21263-5257 RST1089 distance=97' 21098-5155 RST1084 distance=98' 21233-5429 TVB 319 distance=100' 21230-5157 I 132 distance=104' 21192-5455 BRT3188 distance=105' 21135-5129 BRT1117 distance=108' 21244-5435 HU 1537 distance=110' 21168-5123 BVD 136 distance=113' 21031-5246 RST1080 distance=118' 21154-5117 NSN 449 distance=120' 21042-5423 HDS3000 distance=123' 21056-5151 I 1433 distance=126' 21064-5143 NSN 453 distance=127' 21221-5121 LDS 739AB distance=129' 21086-5121 RST1082 distance=132' 21231-5122 UC 4464 distance=133' 21049-5147 B 1390 distance=134' 21005-5356 KPP3078 distance=142' 21000-5326 HDS2993 distance=142' 21283-5152 HU 1629 distance=142' 21116-5533 UC 4398 distance=143' 21076-5114 HDS3011 distance=144' 20596-5329 KPP 482 distance=146' 21122-5054 SKF1170 distance=146' 20596-5336 B 511 distance=147' 20594-5252 UC 4351 distance=150' 20590-5328 UC 4349 distance=151' 21097-5055 UC 4392 distance=152' 21221-5055 TDT2928 distance=153' 21069-5529 HJ 5241 distance=154' 21153-5041 RST1085 distance=155' 21190-5043 HJ 5257 distance=156' 21146-5552 HU 1535 distance=157' 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 21158-5316 FIN 329 92 0.2
Show 21199-5327 HJ 5258 AB 269 7.3 39
Show 21199-5327 MRN 3 Aa,Ab 21 0.1 39
Show 21199-5331 ARY 79 98 29.2 40
Show 21208-5302 LWR 18 AB 230 13.6 48
Show 21208-5302 SHY 340 AC 3 999.9 48
Show 21098-5302 UC 4393 343 55.5 56
Show 21174-5419 RST3282 277 0.5 66
Show 21161-5421 TDT2870 246 1.0 66
Show 21209-5229 UC 4449 284 51.6 66
Show 21210-5229 CVN 66 AB 48 3.3 67
Show 21210-5229 CVN 66 AC 161 5.9 67
Show 21210-5229 CVN 66 Aa,Ab 238 0.1 67
Show 21114-5220 HU 1626 104 0.9 69
Show 21141-5428 LDS 735 60 15.3 77
Show 21218-5428 UC 4458 171 11.4 90
Show 21104-5434 HJ 5246 135 3.4 92
Show 21164-5451 HDS3026 223 0.4 96
Show 21263-5257 RST1089 99 1.0 97
Show 21098-5155 RST1084 35 1.4 98
Show 21233-5429 TVB 319 359 14.7 100
Show 21230-5157 I 132 276 1.2 104
Show 21192-5455 BRT3188 77 4.6 105
Show 21135-5129 BRT1117 317 3.9 108
Show 21244-5435 HU 1537 353 3.5 110
Show 21168-5123 BVD 136 212 32.6 113
Show 21031-5246 RST1080 52 5.5 118
Show 21154-5117 NSN 449 36 5.5 120
Show 21042-5423 HDS3000 151 0.3 123
Show 21056-5151 I 1433 36 0.8 126
Show 21064-5143 NSN 453 58 1.3 127
Show 21221-5121 LDS 739 AB 286 44.2 129
Show 21086-5121 RST1082 183 2.4 132
Show 21231-5122 UC 4464 203 9.4 133
Show 21049-5147 B 1390 236 2.7 134
Show 21005-5356 KPP3078 214 6.2 142
Show 21000-5326 HDS2993 235 0.1 142
Show 21283-5152 HU 1629 248 1.3 142
Show 21116-5533 UC 4398 100 7.2 143
Show 21076-5114 HDS3011 349 1.2 144
Show 20596-5329 KPP 482 246 3.7 146
Show 21122-5054 SKF1170 202 22.5 146
Show 20596-5336 B 511 167 1.3 147
Show 20594-5252 UC 4351 301 6.4 150
Show 20590-5328 UC 4349 287 10.4 151
Show 21097-5055 UC 4392 347 57.6 152
Show 21221-5055 TDT2928 249 0.6 153
Show 21069-5529 HJ 5241 40 12.6 154
Show 21153-5041 RST1085 205 1.7 155
Show 21190-5043 HJ 5257 274 13.6 156
Show 21146-5552 HU 1535 217 8.6 157

 
 
WDS 21158-5316 : COMPONENTS
 
 
  A
B pa=93.3°
sep=0.09"
 
 
21158-5316 A
 
 
Componente originario normalizzato AB Name HD 202103 Coord arcsec 2000 211545.84-531547.0 Mag 6.33
Spectral class A6IV (white) PmRA 35.00 PmDE -18.0 SAO 246929
HIP 104978 Tycho2 8793-00796-1 HD 202103 HR 8114
GC 29704 CP CP-5310015 FK5 796
Tycho2
Tycho2 8793-00796-1 Pflag RAmdeg 318.94112963 DEmdeg -53.26308956
PmRA 36.8 PmDE -16.0 E RAmdeg 3 E DEmdeg 4
E pmRA 0.9 E pmDE 0.9 EpRAm 1991.44 EpDEm 1991.28
Num 17 Q RAmdeg 1.3 Q DEmdeg 1.0 Q pmRA 1.2
Q pmDE 1.0 BTmag 5.948 E BTmag 0.014 VTmag 5.743
E VTmag 0.009 Prox 999 TYC T HIP 104978
CCDM AB RAdeg 318.94098722 DEdeg -53.26305222 EpRA 1990 1.66
EpDE 1990 1.62 E RAdeg 3.4 E DEdeg 3.7 Posflg P
Corr -0.2
SAO
SAO 246929 DelFlag RA1950 PmRA1950 0.0031
DE1950 PmDE1950 -0.013 Vmag 5.8 SpType A5
Double code Source 74 CatNum 796 DM CP-5310015
DMcomp BDsup HD 202103 M HD 0
GC 29704 RA1950rad 5.55104025 DE1950rad -0.93325251 PmRA2000 0.0027
PmDE2000 -0.017
Hipparcos
Catalog H HIP 104978 Proxy H RAhms 21 15 45.84
DEdms -53 15 47.0 Vmag 5.73 VarFlag R Vmag G
RAdeg 318.941 DEdeg -53.2631 AstroRef * Plx 8.22
CCDM 21158-5316 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source S Qual A M HIP AB
Theta 64 Rho 0.14 HD 202103 BD
CD CP CP-5310015 Dm number -5310015 VIred 0.21
SpType A6IV R SpType Coord arcsec 2000 211545.84-531547.0
Hipparcos 2
HIP 104978 Sn 55 So 3 Nc 2
RArad 5.5665702953 DErad -0.9296155939 Plx 7.62 PmRA 35.28
PmDE -13.53 E RArad 0.48 E DErad 0.36 E Plx 0.59
E pmRA 0.7 E pmDE 0.34 Hpmag 5.7886 E Hpmag 0.0009
SHp 0.007 VA 0 BV 0.191 E BV 0.005
VI 0.21
CCDM
Ccdm 21158-5316 RComp Comp A Note1
Note2 Discov num DRAs -2.24 DDEs 12.9
R dRAs 10 Year Theta Rho
Obs 2 Vmag 6.6 Sp A5 PmNote *
PmRA 28 PmDE -13 Dm number -5310015 Cat1 CPD
Name2 246929 Cat2 SAO HD 202103 M HD
ADS BDS M ADS BDS N IDS IDS 21086S5341A
HIC 104978
 
 
21158-5316 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 211545.85-531547.0 Mag 6.8 Calc delta mag 0.47
Calc coord yes
CCDM
Ccdm 21158-5316 RComp Comp B Note1 *
Note2 Discov num FIN 329 DRAs DDEs
R dRAs Year 1959 Theta 138 Rho 0.1
Obs 6 Vmag 6.6 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N N IDS IDS 21086S5341B
HIC 104978