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Current system
09252-1258
WSI 73
HD 81408


Nearby doubles
6' : 09252-1303
GWP1169

24' : 09256-1320
UC 1788

36' : 09272-1241
TDS6570

36' : 09262-1330
HU 56

40' : 09278-1256
BRT2719

40' : 09275-1241
RST3637

41' : 09226-1239
XMI 91

48' : 09229-1334
LDS3883

55' : 09239-1350
RST3636

71' : 09295-1229
RST3640

71' : 09298-1244
HDS1363

73' : 09212-1216
J 2899

76' : 09213-1207
TDS6501

81' : 09298-1340
UC 1803

84' : 09194-1246
BRT2718

86' : 09215-1151
RST3635

87' : 09202-1346
TDS6485

95' : 09258-1432
GWP1170

97' : 09313-1329
KUI 41

99' : 09198-1158
B 2529

101' : 09256-1439
TDS6551

104' : 09314-1213
TDS6620

107' : 09323-1309
GWP1192

107' : 09253-1445
TDS6546

110' : 09181-1219
HU 126

111' : 09211-1124
DAM 720



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.

09252-1258 WSI 73 (HD 81408)

 
 
09h 25m 05.39s -12° 58' 00.5" P.A. 274.00 sep 0.2 mag 10.10,11.10 Sp K1/2V dist. 43.4 pc (141.57 l.y.)
 
 
Coord 2000 09252-1258 Discov num WSI  73 Comp Coord arcsec 2000 09 25 05.39 -12 58 00.5
Date first 2001 Date last 2020 Obs 18
Pa first 285 Pa last 274.1 P.A. Now (θ) 275.4°
Sep first 0.1 Sep last 0.162 Sep. Now (ρ) 0.175"
Mag pri 10.10 Mag sec 11.10 delta mag (ΔM) 1 Spectral class K1/2V (yellow-orange)
Pri motion ra +556 Sec motion ra
Pri motion dec -569 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 81408 Constellation Hydra HIP 46191 Tycho2 5467-01584-1
HD 81408 BD BD-12 2889 Distance 43.4 Distance ly 141.57
 
 
ORBITAL ELEMENTS
 
 
Period (P)12.715y± 0.12 Periastron (T)2018.15y± 0.05 Semi-major axis (a)0.1294a± 0.0025
Eccentricity (e)0.627± 0.009 Inclination (i)85.9°± 0.4 Longitude of periastron (ω)42.7°± 2
Node (Ω)93.1°± 0.5 Notes ReferenceTok2020e
Equinox Last observation Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 278.1 0.132
2001 280.0 0.101
2002 284.2 0.062
2003 306.6 0.019
2004 79.3 0.031
2005 91.9 0.057
2006 264.2 0.028
2007 271.8 0.110
2008 273.4 0.153
2009 274.3 0.173
2010 275.2 0.177
2011 276.1 0.169
2012 277.1 0.151
2013 278.5 0.124
2014 280.8 0.090
2015 286.6 0.050
2016 348.5 0.010
2017 84.9 0.043
2018 94.5 0.047
2019 268.9 0.056
2020 272.4 0.125
2021 273.7 0.160
2022 274.6 0.175
2023 275.4 0.175
2024 276.4 0.164
2025 277.5 0.144
2026 279.0 0.115
2027 281.9 0.079
2028 290.7 0.038
2029 53.1 0.014
2030 88.2 0.052


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


 
  


wds09252-1258b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 09252-1258 WSI 73 (HD 81408) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Tok2020e St j Tokovinin, A., Mason, B.D., Mendez, R.A., Costa, E. & Horch, E.P. 2020AJ....160....7T
Tok2020e +orb AJ 160, 7, 2020
 
 
DISCOVERER
 
 
idgroup discov author
1 WSI Douglass, G.G., Hindsley, R.B., & Worley, C.E.
10 WSI Mason, B.D., Hartkopf, W.I., Holdenried, E.R., Rafferty, T.J., Wycoff, G.L.,
10 WSI Hennessy, G.S., Hall, D.M., Urban, S.E., et al.
13 WSI Mason, B.D., Hartkopf, W.I., Wycoff, G.L., Holdenried, E.R., Platais, I.,
13 WSI Rafferty, T.J., Hall, D.M., Hennessy, G.S., et al.
14 WSI Mason, B.D., Hartkopf, W.I., Urban, S.E., Wycoff, G.L., Pascu, D., Hall, D.M.,
14 WSI Hennessy, G.S., Platais, I., et al.
15 WSI Mason, B.D., Hartkopf, W.I., Wycoff, G.L., Pascu, D., Urban, S.E., Hall, D.M.,
15 WSI Hennessy, G.S., Rafferty, T.J., et al.
42 WSI Mason, B.D., Hartkopf, W.I., Bredthauer, G., Ferguson, E.W., Finch, C.T., Kilian,
42 WSI C.M., Rafferty, T.J., Ragan, T.J. & Wieder, G.D.
52 WSI Mason, B.D., Williams, S.J., Matson, R.A., Josties, J.D., Eakens, P.D., Justice,
52 WSI M., Kilian, C.M. & Warner, R.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
09252-1258 WSI 73 2009 1 275 0.2 10.10 11.10 K1/2V 092505.39-125800.5
09252-1258 WSI 73 2010 3 277 0.2 10.10 11.10 K1/2V 092505.39-125800.5
09252-1258 WSI 73 2013 6 279 0.1 10.10 11.10 K1/2V 092505.39-125800.5
09252-1258 WSI 73 2015 10 94 0.0 10.10 11.10 K1/2V O 092505.39-125800.5
09252-1258 WSI 73 2017 15 91 0.0 10.10 11.10 K1/2V O 092505.39-125800.5
09252-1258 WSI 73 2019 17 273 0.1 10.10 11.10 K1/2V O 092505.39-125800.5
09252-1258 WSI 73 2020 18 274 0.2 10.10 11.10 K1/2V O 092505.39-125800.5

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

 
 
WDS 09252-1258 WSI 73 (HD 81408) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 09252-1258 WSI 73 (HD 81408) : MEASURES
 
 
No records found.

 
 
WDS 09252-1258 (HD 81408) : VIRTUAL EYEPIECE
 
 

09252-1258 WSI 73A mag 10.1 Sp K1/2V 09252-1258 WSI 73B sep 0.2 P.A. 274.20 mag 11.1 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 09252-1258 (HD 81408) : ALADIN DSS IMAGE @ 09h 25m 05.39s -12° 58' 00.5"
 
 
 
 
WDS 09252-1258 WSI 73 (HD 81408) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

09252-1258 WSI 73 distance=0' 09252-1303 GWP1169 distance=6' 09256-1320 UC 1788 distance=24' 09272-1241 TDS6570 distance=36' 09262-1330 HU 56 distance=36' 09278-1256 BRT2719 distance=40' 09275-1241 RST3637 distance=40' 09226-1239 XMI 91 distance=41' 09229-1334 LDS3883 distance=48' 09239-1350 RST3636 distance=55' 09295-1229 RST3640 distance=71' 09298-1244 HDS1363 distance=71' 09212-1216 J 2899 distance=73' 09213-1207 TDS6501 distance=76' 09298-1340 UC 1803 distance=81' 09194-1246 BRT2718 distance=84' 09215-1151 RST3635 distance=86' 09202-1346 TDS6485 distance=87' 09258-1432 GWP1170 distance=95' 09313-1329 KUI 41 distance=97' 09198-1158 B 2529 distance=99' 09256-1439 TDS6551 distance=101' 09314-1213 TDS6620 distance=104' 09323-1309 GWP1192 distance=107' 09253-1445 TDS6546 distance=107' 09181-1219 HU 126 distance=110' 09211-1124 DAM 720 distance=111' 09294-1431 TOI 573 distance=112' 09275-1445 UC 1792 distance=113' 09240-1105 HU 55 distance=114' 09208-1121 BRT3210 distance=115' 09319-1202 BRT2720 distance=116' 09330-1235 HDS1375 distance=118' 09297-1435 LDS3898 distance=118' 09168-1237 BRT2717 distance=124' 09338-1256 RST4914 distance=128' 09329-1400 BU 910AB distance=130' 09329-1400 BU 910AC distance=130' 09162-1246 GWP1154 distance=131' 09308-1118 UC 1807 distance=132' 09318-1126 HU 127 distance=135' 09330-1411 BRT1908 distance=136' 09167-1404 BRT2716 distance=140' 09159-1214 GWP1153 distance=142' 09347-1236 STF1370 distance=143' 09249-1034 J 1547 distance=145' 09152-1252 HU 125 distance=146' 09276-1036 GWP1181 distance=147' 09160-1402 WSI 28 distance=147' 09344-1352 HDS1379 distance=147' 09149-1251 DAM1573 distance=150' 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 09252-1258 WSI 73 274 0.2
Show 09252-1303 GWP1169 151 199.6 6
Show 09256-1320 UC 1788 40 16.8 24
Show 09272-1241 TDS6570 102 0.5 36
Show 09262-1330 HU 56 155 1.7 36
Show 09278-1256 BRT2719 356 4.4 40
Show 09275-1241 RST3637 93 0.6 40
Show 09226-1239 XMI 91 28 15.0 41
Show 09229-1334 LDS3883 149 29.9 48
Show 09239-1350 RST3636 273 0.6 55
Show 09295-1229 RST3640 69 0.3 71
Show 09298-1244 HDS1363 116 0.3 71
Show 09212-1216 J 2899 210 7.8 73
Show 09213-1207 TDS6501 356 3.1 76
Show 09298-1340 UC 1803 313 146.9 81
Show 09194-1246 BRT2718 251 2.7 84
Show 09215-1151 RST3635 223 4.3 86
Show 09202-1346 TDS6485 200 2.6 87
Show 09258-1432 GWP1170 98 57.6 95
Show 09313-1329 KUI 41 103 0.4 97
Show 09198-1158 B 2529 10 3.4 99
Show 09256-1439 TDS6551 229 2.2 101
Show 09314-1213 TDS6620 211 0.6 104
Show 09323-1309 GWP1192 71 75.7 107
Show 09253-1445 TDS6546 113 0.7 107
Show 09181-1219 HU 126 82 2.9 110
Show 09211-1124 DAM 720 224 13.9 111
Show 09294-1431 TOI 573 234 1.6 112
Show 09275-1445 UC 1792 311 18.5 113
Show 09240-1105 HU 55 123 0.7 114
Show 09208-1121 BRT3210 115 2.9 115
Show 09319-1202 BRT2720 64 3.9 116
Show 09330-1235 HDS1375 311 0.2 118
Show 09297-1435 LDS3898 258 33.7 118
Show 09168-1237 BRT2717 115 2.5 124
Show 09338-1256 RST4914 204 0.3 128
Show 09329-1400 BU 910 AB 305 6.7 130
Show 09329-1400 BU 910 AC 280 170.8 130
Show 09162-1246 GWP1154 61 59.5 131
Show 09308-1118 UC 1807 268 54.2 132
Show 09318-1126 HU 127 85 0.9 135
Show 09330-1411 BRT1908 250 3.6 136
Show 09167-1404 BRT2716 190 4.7 140
Show 09159-1214 GWP1153 339 70.3 142
Show 09347-1236 STF1370 95 17.8 143
Show 09249-1034 J 1547 14 9.0 145
Show 09152-1252 HU 125 105 2.9 146
Show 09276-1036 GWP1181 60 93.4 147
Show 09160-1402 WSI 28 37 13.4 147
Show 09344-1352 HDS1379 89 0.3 147
Show 09149-1251 DAM1573 256 2.2 150

 
 
WDS 09252-1258 : COMPONENTS
 
 
  A
B pa=274.2°
sep=0.16"
 
 
09252-1258 A
 
 
Componente originario normalizzato AB Name HD 81408 Coord arcsec 2000 092505.39-125800.5 Mag 10.1
Spectral class K1/2V (yellow-orange) PmRA 556.00 PmDE -569.0 HIP 46191
Tycho2 5467-01584-1 HD 81408 BD BD-12 2889
Tycho2
Tycho2 5467-01584-1 Pflag RAmdeg 141.27247781 DEmdeg -12.96683706
PmRA 555.3 PmDE -570.8 E RAmdeg 17 E DEmdeg 22
E pmRA 1.4 E pmDE 1.4 EpRAm 1988.32 EpDEm 1986.27
Num 7 Q RAmdeg 0.5 Q DEmdeg 1.5 Q pmRA 0.5
Q pmDE 1.5 BTmag 10.831 E BTmag 0.048 VTmag 9.769
E VTmag 0.030 Prox 999 TYC T HIP 46191
CCDM RAdeg 141.27116583 DEdeg -12.96548889 EpRA 1990 1.70
EpDE 1990 1.56 E RAdeg 19.1 E DEdeg 26.2 Posflg
Corr 0.1
Hipparcos
Catalog H HIP 46191 Proxy RAhms 09 25 05.06
DEdms -12 57 55.6 Vmag 9.64 VarFlag R Vmag G
RAdeg 141.271 DEdeg -12.9654 AstroRef Plx 24.63
CCDM N CCDM Nsys Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 81408 BD BD-12 2889
CD CP Dm number -12 2889 VIred 1
SpType K1/K2V R SpType Coord arcsec 2000 092505.06-125755.6
Hipparcos 2
HIP 46191 Sn 5 So 0 Nc 1
RArad 2.4656456036 DErad -0.2262897123 Plx 23.04 PmRA 554.58
PmDE -569.53 E RArad 1.14 E DErad 0.92 E Plx 1.4
E pmRA 1.28 E pmDE 0.94 Hpmag 9.77 E Hpmag 0.0029
SHp 0.02 VA 0 BV 0.957 E BV 0.017
VI 1
 
 
09252-1258 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 092505.38-125800.5 Mag 11.1 Calc delta mag 1
Calc coord yes