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Current system
08158-1027
RST 3578 AB


Nearby doubles
35' : 08179-1015
BRT 543

42' : 08130-1032
JNN 61

52' : 08131-1100
RST3574

58' : 08129-1106
TDS 446

61' : 08153-1126
J 2875

62' : 08185-1113
J 1514AB

63' : 08174-1125
BRT2708

65' : 08181-1111
J 1515

68' : 08163-1134
HJ 782

76' : 08129-1131
BRT3205

81' : 08196-1124
TDS5720

83' : 08174-1146
XMI 83

85' : 08164-1150
OL 69

88' : 08168-0901
BU 102

91' : 08169-0857
J 1512

93' : 08101-1110
J 2493

94' : 08117-0917
HJ 2433

95' : 08096-1047
J 2871

98' : 08223-1024
J 1516

101' : 08216-1120
BRT3206

102' : 08226-1041
HU 116AB

104' : 08162-1208
BRT2707

105' : 08187-1202
RST3583

106' : 08120-0858
DEA 73

108' : 08116-1155
KPP2528

111' : 08086-0958
J 2869



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

08158-1027 RST 3578 AB

 
 
08h 15m 45.12s -10° 26' 54.4" P.A. 66.00 sep 0.1 mag 10.10,10.10 Sp K5V dist. 41.22 pc (134.46 l.y.)
 
 
Coord 2000 08158-1027 Discov num RST3578 Comp AB Coord arcsec 2000 08 15 45.12 -10 26 54.4
Date first 1938 Date last 2020 Obs 14
Pa first 275 Pa last 66.1 P.A. Now (θ) 82.5°
Sep first 0.3 Sep last 0.146 Sep. Now (ρ) 0.221"
Mag pri 10.10 Mag sec 10.10 delta mag (ΔM) 0 Spectral class K5V (yellow-orange)
Pri motion ra -062 Sec motion ra
Pri motion dec -050 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
08158-1027 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 154039 08 15 45 -10 26 54 RST 3578 AB 2020 14 66 0.1 10.10 10.10 0.00 Y <===
Show 154039 08 15 45 -10 26 54 SKF 427 AB,C 2015 9 142 26.7 9.30 15.00 5.70
Triple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Hydra SAO 154039 HIP 40465 Tycho2 5430-02287-1
Gaia DR2 5728453828366818816 HD 69247 BD BD-10 2443 Distance 41.22
Distance ly 134.46
 
 
ORBITAL ELEMENTS
 
 
Period (P)29.37y± 0.09 Periastron (T)2017.41y± 0.07 Semi-major axis (a)0.222a± 0.0043
Eccentricity (e)0.47± 0.019 Inclination (i)59.3°± 1.7 Longitude of periastron (ω)216.8°± 2.4
Node (Ω)93.3°± 1.1 Notes ReferenceTok2020e
Equinox Last observation Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 105.5 0.300
2001 108.6 0.295
2002 111.8 0.287
2003 115.2 0.276
2004 118.9 0.262
2005 123.1 0.246
2006 128.0 0.227
2007 133.8 0.206
2008 140.9 0.185
2009 150.0 0.163
2010 161.6 0.143
2011 176.6 0.127
2012 194.9 0.118
2013 214.8 0.117
2014 233.8 0.123
2015 250.7 0.130
2016 266.5 0.130
2017 284.5 0.113
2018 313.8 0.081
2019 7.3 0.070
2020 47.8 0.102
2021 66.0 0.146
2022 75.9 0.187
2023 82.5 0.221
2024 87.4 0.248
2025 91.5 0.269
2026 95.0 0.284
2027 98.3 0.294
2028 101.3 0.299
2029 104.4 0.300
2030 107.4 0.297


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


 
  


wds08158-1027b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 08158-1027 RST 3578 AB : 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 RST Rossiter, R.A.
14 SKF Skiff, B.A.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
08158-1027 RST3578 AB 2001 7 108 0.3 10.10 10.10 K5V 081545.16-102654.0
08158-1027 RST3578 AB 2018 11 4 0.1 10.10 10.10 K5V 081545.12-102654.4
08158-1027 RST3578 AB 2019 13 50 0.1 10.10 10.10 K5V O 081545.12-102654.4
08158-1027 RST3578 AB 2020 14 66 0.1 10.10 10.10 K5V O 081545.12-102654.4

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

 
 
WDS 08158-1027 RST 3578 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 08158-1027 RST 3578 AB : MEASURES
 
 
No records found.

 
 
WDS 08158-1027 : VIRTUAL EYEPIECE
 
 

08158-1027 RST3578A mag 10.1 Sp K5V 08158-1027 RST3578B sep 0.1 P.A. 65.70 mag 10.1 08158-1027 SKF 427C sep 26.6 P.A. 142.80 mag 15 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 08158-1027 : ALADIN DSS IMAGE @ 08h 15m 45.12s -10° 26' 54.4"
 
 
 
 
WDS 08158-1027 RST 3578 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

08158-1027 RST3578AB distance=0' 08179-1015 BRT 543 distance=35' 08130-1032 JNN 61 distance=42' 08131-1100 RST3574 distance=52' 08129-1106 TDS 446 distance=58' 08153-1126 J 2875 distance=61' 08185-1113 TDS5694Aa,Ab distance=62' 08185-1113 J 1514AB distance=62' 08174-1125 BRT2708 distance=63' 08181-1111 J 1515 distance=65' 08163-1134 HJ 782 distance=68' 08129-1131 BRT3205 distance=76' 08196-1124 TDS5720 distance=81' 08174-1146 XMI 83 distance=83' 08164-1150 OL 69 distance=85' 08168-0901 BU 102 distance=88' 08169-0857 J 1512 distance=91' 08101-1110 J 2493 distance=93' 08117-0917 HJ 2433 distance=94' 08096-1047 J 2871 distance=95' 08223-1024 J 1516 distance=98' 08216-1120 BRT3206 distance=101' 08226-1041 HU 116AB distance=102' 08226-1041 HJ 784AC distance=102' 08162-1208 BRT2707 distance=104' 08187-1202 RST3583 distance=105' 08120-0858 DEA 73 distance=106' 08116-1155 KPP2528 distance=108' 08086-0958 J 2869 distance=111' 08177-1215 J 2056 distance=112' 08187-1209 RST3584 distance=112' 08158-0836 J 3310 distance=112' 08234-1016 GWP1010 distance=114' 08098-0913 HJ 2432 distance=116' 08153-0832 XMI 82 distance=116' 08136-0835 J 2873 distance=116' 08226-0930 HDS1191 distance=116' 08135-0834 J 2872 distance=117' 08094-0915 RST4386 distance=119' 08234-1115 J 2878 distance=123' 08230-1130 RST3590 distance=124' 08132-1227 J 1510 distance=126' 08088-0917 J 2870 distance=131' 08237-0928 A 3058 distance=131' 08184-1238 JNN 235AB distance=137' 08184-1238 TNN 7AC distance=137' 08164-1247 KPP 173 distance=141' 08107-1227 A 2361 distance=141' 08140-0809 J 2874 distance=142' 08237-1150 GWP1012 distance=145' 08257-1030 TVB 189 distance=148' 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 08158-1027 RST3578 AB 66 0.1
Show 08158-1027 SKF 427 AB,C 142 26.7
Show 08179-1015 BRT 543 6 16.6 35
Show 08130-1032 JNN 61 317 2.7 42
Show 08131-1100 RST3574 136 1.8 52
Show 08129-1106 TDS 446 318 0.9 58
Show 08153-1126 J 2875 208 5.8 61
Show 08185-1113 TDS5694 Aa,Ab 155 1.1 62
Show 08185-1113 J 1514 AB 39 7.3 62
Show 08174-1125 BRT2708 116 4.6 63
Show 08181-1111 J 1515 129 7.5 65
Show 08163-1134 HJ 782 236 13.7 68
Show 08129-1131 BRT3205 110 5.1 76
Show 08196-1124 TDS5720 142 0.9 81
Show 08174-1146 XMI 83 347 17.6 83
Show 08164-1150 OL 69 321 3.0 85
Show 08168-0901 BU 102 117 3.2 88
Show 08169-0857 J 1512 105 11.0 91
Show 08101-1110 J 2493 316 7.3 93
Show 08117-0917 HJ 2433 324 17.4 94
Show 08096-1047 J 2871 198 5.1 95
Show 08223-1024 J 1516 305 10.5 98
Show 08216-1120 BRT3206 89 4.2 101
Show 08226-1041 HU 116 AB 168 1.8 102
Show 08226-1041 HJ 784 AC 13 17.9 102
Show 08162-1208 BRT2707 318 4.9 104
Show 08187-1202 RST3583 318 0.8 105
Show 08120-0858 DEA 73 162 7.5 106
Show 08116-1155 KPP2528 343 22.8 108
Show 08086-0958 J 2869 212 7.3 111
Show 08177-1215 J 2056 23 3.5 112
Show 08187-1209 RST3584 229 2.4 112
Show 08158-0836 J 3310 117 4.7 112
Show 08234-1016 GWP1010 36 17.3 114
Show 08098-0913 HJ 2432 68 20.4 116
Show 08153-0832 XMI 82 25 14.8 116
Show 08136-0835 J 2873 118 5.7 116
Show 08226-0930 HDS1191 202 0.4 116
Show 08135-0834 J 2872 11 5.9 117
Show 08094-0915 RST4386 103 1.3 119
Show 08234-1115 J 2878 300 4.1 123
Show 08230-1130 RST3590 12 1.1 124
Show 08132-1227 J 1510 262 3.5 126
Show 08088-0917 J 2870 131 6.6 131
Show 08237-0928 A 3058 43 0.4 131
Show 08184-1238 JNN 235 AB 236 6.9 137
Show 08184-1238 TNN 7 AC 208 10.0 137
Show 08164-1247 KPP 173 116 3.9 141
Show 08107-1227 A 2361 254 1.4 141
Show 08140-0809 J 2874 141 4.5 142
Show 08237-1150 GWP1012 285 10.2 145

 
 
WDS 08158-1027 : COMPONENTS
 
 
  A B
B pa=65.7°
sep=0.14"
 
C pa=142.8°
sep=26.57"
pa=143.1°
sep=26.53"
 
 
08158-1027 A
 
 
Coord arcsec 2000 081545.12-102654.4 Mag 10.1 Spectral class K5V (yellow-orange) PmRA -62.00
PmDE -50.0 SAO 154039 HIP 40465 Tycho2 5430-02287-1
HD 69247 BD BD-10 2443
Tycho2
Tycho2 5430-02287-1 Pflag RAmdeg 123.93800667 DEmdeg -10.44844583
PmRA -59.6 PmDE -46.3 E RAmdeg 15 E DEmdeg 16
E pmRA 1.3 E pmDE 1.3 EpRAm 1986.83 EpDEm 1986.58
Num 9 Q RAmdeg 1.2 Q DEmdeg 0.8 Q pmRA 1.2
Q pmDE 0.7 BTmag 10.442 E BTmag 0.039 VTmag 9.376
E VTmag 0.023 Prox 999 TYC T HIP 40465
CCDM RAdeg 123.93815222 DEdeg -10.44833583 EpRA 1990 1.51
EpDE 1990 1.49 E RAdeg 16.7 E DEdeg 17.7 Posflg
Corr 0.0
SAO
SAO 154039 DelFlag RA1950 PmRA1950 -0.0051
DE1950 PmDE1950 -0.068 Vmag 8.9 SpType K2
Double code Source 26 CatNum 3144 DM BD-10 2443
DMcomp BDsup HD 69247 M HD 0
GC RA1950rad 2.15269899 DE1950rad -0.17966087 PmRA2000 -0.0047
PmDE2000 -0.063
Hipparcos
Catalog H HIP 40465 Proxy RAhms 08 15 45.16
DEdms -10 26 54.0 Vmag 9.25 VarFlag R Vmag H
RAdeg 123.938 DEdeg -10.4483 AstroRef Plx 23.07
CCDM 08158-1027 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual S M HIP
Theta Rho HD 69247 BD BD-10 2443
CD CP Dm number -10 2443 VIred 1.33
SpType K5V R SpType Coord arcsec 2000 081545.16-102654.0
Hipparcos 2
HIP 40465 Sn 5 So 0 Nc 1
RArad 2.163128804 DErad -0.1823578831 Plx 24.26 PmRA -60.87
PmDE -47.25 E RArad 1.22 E DErad 0.93 E Plx 1.4
E pmRA 1.5 E pmDE 1.31 Hpmag 9.3865 E Hpmag 0.0035
SHp 0.02 VA 0 BV 0.965 E BV 0.04
VI 1.01
CCDM
Ccdm 08158-1027 RComp Comp A Note1
Note2 Discov num DRAs -2.95 DDEs 3.8
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.8 Sp K2 PmNote *
PmRA -75 PmDE -68 Dm number -10 2443 Cat1 BD
Name2 154039 Cat2 SAO HD 69247 M HD
ADS BDS M ADS BDS N IDS IDS 08110S1008A
HIC 40465
 
 
08158-1027 B
 
 
Coord arcsec 2000 081545.13-102654.3 Mag 10.1 Calc coord yes
CCDM
Ccdm 08158-1027 RComp Comp B Note1
Note2 Discov num RST3578 DRAs DDEs
R dRAs Year 1938 Theta 291 Rho 0.2
Obs 3 Vmag 9.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 08110S1008B
HIC 40465
 
 
08158-1027 C
 
 
Coord arcsec 2000 081546.21-102715.6 Mag 15 PmRA -63.00 PmDE -50.0
Calc delta mag 4.9 Calc coord yes