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Doubles in session


Current system
21206+1310
HDS 3038
HD 203220


Nearby doubles
34' : 21191+1244
BPM2357

50' : 21184+1233
BRT1352

54' : 21241+1324
LEP 173

56' : 21187+1358
BRT1353

57' : 21190+1218
BRT1354

61' : 21168+1337
J 578

63' : 21242+1237
HJ 282AB

65' : 21175+1221
HJ 279AB

66' : 21205+1415
BPM2360

70' : 21225+1207
BPM2366

73' : 21187+1417
J 1785

73' : 21196+1421
HU 962

75' : 21245+1358
LDS4883AB

79' : 21196+1153
BPM2359

80' : 21177+1417
J 3133

82' : 21178+1418
BRT1351

85' : 21173+1417
J 3132

90' : 21188+1144
HEI 880

91' : 21209+1140
BPM2361

93' : 21236+1431
LDS4881

94' : 21244+1425
BPM2370

95' : 21267+1341
STF2797

96' : 21140+1305
BPM2347

96' : 21140+1314
J 849

101' : 21186+1134
BU 163AB

101' : 21142+1231
HEI 406



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.

21206+1310 HDS 3038 (HD 203220)

 
 
21h 20m 33.52s +13° 10' 01.3" P.A. 126.00 sep 0.1 mag 8.28,11.01 Sp G0 dist. 91.58 pc (298.73 l.y.)
 
 
Coord 2000 21206+1310 Discov num HDS3038 Comp Coord arcsec 2000 21 20 33.52 +13 10 01.3
Date first 1991 Date last 2018 Obs 9
Pa first 324 Pa last 125.6 P.A. Now (θ) 125.6°
Sep first 0.2 Sep last 0.142 Sep. Now (ρ) 0.142"
Mag pri 8.28 Mag sec 11.01 delta mag (ΔM) 2.73 Spectral class G0 (yellow)
Pri motion ra +051 Sec motion ra
Pri motion dec -038 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 203220 Constellation Pegasus SAO 107048 HIP 105371
Tycho2 1118-01137-1 Gaia DR2 1747168609836225792 HD 203220 BD BD+12 4602
Distance 91.58 Distance ly 298.73
 
 
ORBITAL ELEMENTS
 
 
Period (P)78.2y Periastron (T)2012.84y Semi-major axis (a)0.231a
Eccentricity (e)0.25 Inclination (i)91.1° Longitude of periastron (ω)274.3°
Node (Ω)126.1° Notes ReferenceTok2019c
Equinox Last observation2018 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 306.0 0.212
2001 305.9 0.204
2002 305.7 0.194
2003 305.6 0.183
2004 305.5 0.169
2005 305.3 0.154
2006 305.1 0.137
2007 304.8 0.119
2008 304.4 0.098
2009 303.8 0.077
2010 302.7 0.054
2011 300.0 0.031
2012 281.0 0.008
2013 137.2 0.017
2014 130.7 0.041
2015 128.9 0.064
2016 128.1 0.086
2017 127.6 0.107
2018 127.2 0.126
2019 127.0 0.144
2020 126.8 0.160
2021 126.6 0.174
2022 126.5 0.186
2023 126.4 0.196
2024 126.2 0.204
2025 126.1 0.211
2026 126.0 0.215
2027 125.9 0.218
2028 125.8 0.219
2029 125.8 0.219
2030 125.7 0.217


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


 
  


wds21206%2B1310a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 21206+1310 HDS 3038 (HD 203220) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Tok2019c St j Tokovinin, A., Mason, B.D., Mendez, R.A., Horch, E.P. & Briceno, C. 2019AJ....158...48T
Tok2019c +orb AJ 158, 48, 2019
 
 
DISCOVERER
 
 
idgroup discov author
1 HDS Hipparcos Double Star (from additional DD list)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21206+1310 HDS3038 1999 4 306 0.2 8.28 11.01 G0 D 212033.52+131001.3
21206+1310 HDS3038 2008 6 307 0.1 8.28 11.01 G0 D 212033.52+131001.3
21206+1310 HDS3038 2015 7 125 0.1 8.28 11.01 G0 212033.52+131001.3
21206+1310 HDS3038 2017 8 308 0.1 8.28 11.01 G0 212033.52+131001.3
21206+1310 HDS3038 2018 9 126 0.1 8.28 11.01 G0 212033.52+131001.3

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

 
 
WDS 21206+1310 HDS 3038 (HD 203220) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21206+1310 HDS 3038 (HD 203220) : MEASURES
 
 
No records found.

 
 
WDS 21206+1310 (HD 203220) : VIRTUAL EYEPIECE
 
 

21206+1310 HDS3038A mag 8.28 Sp G0 21206+1310 HDS3038B sep 0.1 P.A. 126.30 mag 11.01 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 21206+1310 (HD 203220) : ALADIN DSS IMAGE @ 21h 20m 33.52s +13° 10' 01.3"
 
 
 
 
WDS 21206+1310 HDS 3038 (HD 203220) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21206+1310 HDS3038 distance=0' 21191+1244 BPM2357 distance=34' 21184+1233 BRT1352 distance=50' 21241+1324 LEP 173 distance=54' 21187+1358 BRT1353 distance=56' 21190+1218 BRT1354 distance=57' 21168+1337 J 578 distance=61' 21242+1237 HJ 282AB distance=63' 21242+1237 FYM 182AC distance=63' 21175+1221 HJ 279AB distance=65' 21175+1221 HJ 279AC distance=65' 21205+1415 BPM2360 distance=66' 21225+1207 BPM2366 distance=70' 21187+1417 J 1785 distance=73' 21196+1421 HU 962 distance=73' 21245+1358 LDS4883AB distance=75' 21245+1358 LDS4883AC distance=75' 21196+1153 BPM2359 distance=79' 21177+1417 J 3133 distance=80' 21178+1418 BRT1351 distance=82' 21173+1417 J 3132 distance=85' 21188+1144 HEI 880 distance=90' 21209+1140 BPM2361 distance=91' 21236+1431 LDS4881 distance=93' 21244+1425 BPM2370 distance=94' 21267+1341 STF2797 distance=95' 21140+1305 BPM2347 distance=96' 21140+1314 J 849 distance=96' 21186+1134 BU 163AB distance=101' 21186+1134 BU 163AC distance=101' 21186+1134 BU 163AD distance=101' 21186+1134 BU 163AE distance=101' 21142+1231 HEI 406 distance=101' 21136+1315 BPM2344BC distance=102' 21136+1315 BPM2343AB distance=103' 21254+1428 BPM2373 distance=106' 21140+1219 BPM2348 distance=109' 21215+1122 BPM2363 distance=110' 21248+1136 GWP3057 distance=113' 21272+1408 BPM2376 distance=114' 21257+1140 BPM2374 distance=118' 21164+1128 CVR 892 distance=119' 21222+1114 J 2605 distance=120' 21167+1459 HU 961 distance=122' 21198+1108 GRV 446 distance=122' 21172+1502 UC 4427 distance=122' 21223+1111 BRT1355 distance=123' 21224+1110 NSN 743 distance=123' 21128+1223 KPP4228 distance=123' 21288+1341 J 162 distance=124' 21216+1513 AG 417 distance=124' 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 21206+1310 HDS3038 126 0.1
Show 21191+1244 BPM2357 65 34.9 34
Show 21184+1233 BRT1352 183 5.0 50
Show 21241+1324 LEP 173 34 4.2 54
Show 21187+1358 BRT1353 241 3.8 56
Show 21190+1218 BRT1354 163 3.6 57
Show 21168+1337 J 578 277 7.2 61
Show 21242+1237 HJ 282 AB 69 27.3 63
Show 21242+1237 FYM 182 AC 162 14.9 63
Show 21175+1221 HJ 279 AB 293 5.4 65
Show 21175+1221 HJ 279 AC 293 126.7 65
Show 21205+1415 BPM2360 342 61.2 66
Show 21225+1207 BPM2366 107 61.1 70
Show 21187+1417 J 1785 317 7.7 73
Show 21196+1421 HU 962 61 0.6 73
Show 21245+1358 LDS4883 AB 208 1.9 75
Show 21245+1358 LDS4883 AC 66 31.3 75
Show 21196+1153 BPM2359 145 89.8 79
Show 21177+1417 J 3133 47 5.3 80
Show 21178+1418 BRT1351 120 4.9 82
Show 21173+1417 J 3132 192 6.5 85
Show 21188+1144 HEI 880 205 2.0 90
Show 21209+1140 BPM2361 54 111.3 91
Show 21236+1431 LDS4881 225 35.0 93
Show 21244+1425 BPM2370 297 71.5 94
Show 21267+1341 STF2797 218 3.5 95
Show 21140+1305 BPM2347 160 102.5 96
Show 21140+1314 J 849 156 2.4 96
Show 21186+1134 BU 163 AB 257 1.0 101
Show 21186+1134 BU 163 AC 252 29.7 101
Show 21186+1134 BU 163 AD 163 44.8 101
Show 21186+1134 BU 163 AE 6 87.5 101
Show 21142+1231 HEI 406 179 0.7 101
Show 21136+1315 BPM2344 BC 80 80.5 102
Show 21136+1315 BPM2343 AB 156 105.6 103
Show 21254+1428 BPM2373 347 39.7 106
Show 21140+1219 BPM2348 161 95.7 109
Show 21215+1122 BPM2363 196 52.2 110
Show 21248+1136 GWP3057 181 11.2 113
Show 21272+1408 BPM2376 310 77.6 114
Show 21257+1140 BPM2374 142 74.8 118
Show 21164+1128 CVR 892 185 7.0 119
Show 21222+1114 J 2605 223 1.5 120
Show 21167+1459 HU 961 14 2.2 122
Show 21198+1108 GRV 446 157 60.2 122
Show 21172+1502 UC 4427 328 54.2 122
Show 21223+1111 BRT1355 192 4.1 123
Show 21224+1110 NSN 743 262 2.3 123
Show 21128+1223 KPP4228 149 2.3 123
Show 21288+1341 J 162 59 2.7 124
Show 21216+1513 AG 417 13 35.8 124

 
 
WDS 21206+1310 : COMPONENTS
 
 
  A
B pa=126.3°
sep=0.14"
 
 
21206+1310 A
 
 
Componente originario normalizzato AB Name HD 203220 Coord arcsec 2000 212033.52+131001.3 Mag 8.28
Spectral class G0 (yellow) PmRA 51.00 PmDE -38.0 SAO 107048
HIP 105371 Tycho2 1118-01137-1 HD 203220 BD BD+12 4602
Tycho2
Tycho2 1118-01137-1 Pflag RAmdeg 320.13977660 DEmdeg 13.16694472
PmRA 48.3 PmDE -35.7 E RAmdeg 7 E DEmdeg 8
E pmRA 1.2 E pmDE 1.1 EpRAm 1991.00 EpDEm 1990.51
Num 9 Q RAmdeg 0.7 Q DEmdeg 1.5 Q pmRA 0.7
Q pmDE 1.5 BTmag 8.790 E BTmag 0.019 VTmag 8.144
E VTmag 0.014 Prox 999 TYC T HIP 105371
CCDM AB RAdeg 320.13966250 DEdeg 13.16702917 EpRA 1990 1.71
EpDE 1990 1.49 E RAdeg 6.6 E DEdeg 8.4 Posflg P
Corr -0.1
SAO
SAO 107048 DelFlag RA1950 PmRA1950 0.0026
DE1950 PmDE1950 -0.023 Vmag 8.3 SpType G0
Double code Source 29 CatNum 8452 DM BD+12 4602
DMcomp BDsup HD 203220 M HD 0
GC RA1950rad 5.57702395 DE1950rad 0.22610393 PmRA2000 0.0027
PmDE2000 -0.027
Hipparcos
Catalog H HIP 105371 Proxy H RAhms 21 20 33.52
DEdms +13 10 01.3 Vmag 8.07 VarFlag R Vmag G
RAdeg 320.14 DEdeg 13.167 AstroRef * Plx 11.59
CCDM 21206+1310 N CCDM H Nsys 1 Ncomp 2
MultFlag C Source Qual B M HIP AB
Theta 324 Rho 0.225 HD 203220 BD BD+12 4602
CD CP Dm number +12 4602 VIred 0.67
SpType G0 R SpType Coord arcsec 2000 212033.52+131001.3
Hipparcos 2
HIP 105371 Sn 55 So 3 Nc 2
RArad 5.5874911276 DErad 0.2298080891 Plx 10.92 PmRA 50.87
PmDE -37.24 E RArad 0.83 E DErad 0.71 E Plx 1.04
E pmRA 0.9 E pmDE 0.76 Hpmag 8.1945 E Hpmag 0.0022
SHp 0.012 VA 0 BV 0.601 E BV 0.015
VI 0.67
CCDM
Ccdm 21206+1310 RComp Comp A Note1
Note2 Discov num DRAs -2.45 DDEs 1.0
R dRAs 82 Year Theta Rho
Obs 2 Vmag 8.3 Sp G0 PmNote *
PmRA 51 PmDE -38 Dm number +12 4602 Cat1 BD
Name2 +12 2500 Cat2 AGK2/3 HD 203220 M HD
ADS BDS M ADS BDS N IDS IDS
HIC 105371
 
 
21206+1310 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 212033.53+131001.2 Mag 11.01 Calc delta mag 2.73
Calc coord yes
CCDM
Ccdm 21206+1310 RComp Comp B Note1
Note2 Discov num HDS DRAs -2.46 DDEs 1.2
R dRAs 82 Year 1991 Theta 324 Rho 0.2
Obs 1 Vmag 11.0 Sp PmNote *
PmRA 51 PmDE -38 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS
HIC 105371