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Current system
17305-1006
RST 3978
HD 158577


Nearby doubles
19' : 17293-0959
STF2171

20' : 17317-0959
HDS2474

50' : 17309-1055
RST3979

54' : 17313-1058
HU 673AB

59' : 17321-0912
A 2594

66' : 17306-1111
GWP2716

72' : 17326-0901
LDS 605

77' : 17340-1102
HDS2479

89' : 17250-0931
FOX 201AB

93' : 17283-0839
A 29

94' : 17348-1115
HJ 4964AB

97' : 17250-0913
GWP2710AB

102' : 17300-0825
STF2169

102' : 17323-0828
HJ 4960

106' : 17374-0937
LDS5855

107' : 17240-0921
TOK 179AB

107' : 17254-0850
HDS2460

113' : 17348-0833
KPP1917

126' : 17297-0801
RST3977

132' : 17278-1211
HU 234AB

133' : 17272-1209
HU 175

136' : 17240-1142
BU 242AB

142' : 17217-1103
HU 173

146' : 17319-1230
GWP2722

147' : 17209-1042
RST3971

156' : 17260-0745
RST3975AB



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.

17305-1006 RST 3978 (HD 158577)

 
 
17h 30m 29.30s -10° 05' 46.3" P.A. 273.00 sep 0.5 mag 8.42,10.61 Sp G5 dist. 51.49 pc (167.96 l.y.)
 
 
Coord 2000 17305-1006 Discov num RST3978 Comp Coord arcsec 2000 17 30 29.30 -10 05 46.3
Date first 1938 Date last 2019 Obs 13
Pa first 110 Pa last 272.7 P.A. Now (θ) 275.2°
Sep first 0.5 Sep last 0.454 Sep. Now (ρ) 0.478"
Mag pri 8.42 Mag sec 10.61 delta mag (ΔM) 2.19 Spectral class G5 (yellow)
Pri motion ra +014 Sec motion ra
Pri motion dec -028 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 158577 Constellation Ophiuchus SAO 160596 HIP 85675
Tycho2 5663-00327-1 Gaia DR2 4166491118945325056 HD 158577 GC 23703
BD BD-09 4562 Distance 51.49 Distance ly 167.96
 
 
ORBITAL ELEMENTS
 
 
Period (P)49.24y± 1.19 Periastron (T)1981.1y± 1.52 Semi-major axis (a)0.547a± 0.044
Eccentricity (e)0.343± 0.09 Inclination (i)83°± 2.2 Longitude of periastron (ω)79.5°± 7.4
Node (Ω)276.8°± 1.8 Notes ReferenceTok2015c
Equinox2000 Last observation2014 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 107.5 0.390
2001 109.3 0.353
2002 111.6 0.314
2003 114.5 0.273
2004 118.5 0.231
2005 124.2 0.189
2006 133.1 0.149
2007 147.9 0.114
2008 172.5 0.092
2009 203.5 0.092
2010 227.7 0.115
2011 242.3 0.151
2012 251.0 0.191
2013 256.7 0.232
2014 260.6 0.273
2015 263.6 0.313
2016 265.9 0.350
2017 267.7 0.385
2018 269.3 0.415
2019 270.6 0.441
2020 271.9 0.462
2021 273.0 0.475
2022 274.1 0.481
2023 275.2 0.478
2024 276.3 0.464
2025 277.5 0.437
2026 279.0 0.398
2027 280.8 0.344
2028 283.4 0.276
2029 288.0 0.195
2030 300.0 0.107


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


 
  


wds17305-1006a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 17305-1006 RST 3978 (HD 158577) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Tok2015c orb+j Tokovinin, A., Mason, B.D., Hartkopf, W.I., Mendez, R.A., & Horch, E.P. 2015AJ....150...50T
Tok2015c +St AJ 150, 50, 2015 (some measures corrected in Tok2017b) 2017AJ....154..110T
 
 
DISCOVERER
 
 
idgroup discov author
1 RST Rossiter, R.A.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17305-1006 RST3978 1991 4 97 0.5 8.42 10.61 G5 D 173029.30-100546.3
17305-1006 RST3978 2009 5 31 0.1 8.42 10.61 G5 D 173029.30-100546.3
17305-1006 RST3978 2012 6 73 0.2 8.42 10.61 G5 D 173029.30-100546.3
17305-1006 RST3978 2013 8 80 0.3 8.42 10.61 G5 173029.30-100546.3
17305-1006 RST3978 2014 9 81 0.3 8.42 10.61 G5 O 173029.30-100546.3
17305-1006 RST3978 2017 10 269 0.4 8.42 10.61 G5 O 173029.30-100546.3
17305-1006 RST3978 2018 11 270 0.4 8.42 10.61 G5 O 173029.30-100546.3
17305-1006 RST3978 2019 12 273 0.5 8.42 10.61 G5 O 173029.30-100546.3

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

 
 
WDS 17305-1006 RST 3978 (HD 158577) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 17305-1006 RST 3978 (HD 158577) : MEASURES
 
 
No records found.

 
 
WDS 17305-1006 (HD 158577) : VIRTUAL EYEPIECE
 
 

17305-1006 RST3978A mag 8.42 Sp G5 17305-1006 RST3978B sep 0.5 P.A. 272.70 mag 10.61 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 17305-1006 (HD 158577) : ALADIN DSS IMAGE @ 17h 30m 29.30s -10° 05' 46.3"
 
 
 
 
WDS 17305-1006 RST 3978 (HD 158577) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

17305-1006 RST3978 distance=0' 17293-0959 STF2171 distance=19' 17317-0959 HDS2474 distance=20' 17309-1055 RST3979 distance=50' 17313-1058 HU 673AB distance=54' 17313-1058 TOK 708Ba,Bb distance=54' 17321-0912 A 2594 distance=59' 17306-1111 GWP2716 distance=66' 17326-0901 LDS 605 distance=72' 17340-1102 HDS2479 distance=77' 17250-0931 FOX 201AB distance=89' 17250-0931 FOX 201AC distance=89' 17283-0839 A 29 distance=93' 17348-1115 HJ 4964AB distance=94' 17250-0913 GWP2710AB distance=97' 17300-0825 STF2169 distance=102' 17323-0828 HJ 4960 distance=102' 17374-0937 LDS5855 distance=106' 17240-0921 RST3972Aa,Ab distance=107' 17240-0921 TOK 179AB distance=107' 17254-0850 HDS2460 distance=107' 17348-0833 KPP1917 distance=113' 17297-0801 RST3977 distance=126' 17278-1211 HU 234AB distance=132' 17278-1211 HU 234AC distance=132' 17272-1209 HU 175 distance=133' 17240-1142 BU 242AB distance=136' 17240-1142 BU 242AC distance=136' 17240-1142 BU 242AD distance=136' 17217-1103 HU 173 distance=142' 17319-1230 GWP2722 distance=146' 17209-1042 RST3971 distance=147' 17260-0745 RST3975AB distance=156' 17260-0745 GII 246Aa,Ab distance=156' 17208-0902 A 28 distance=157' 17419-0944 HDS2503 distance=170' 17199-1121 STF2148 distance=174' 17204-1138 ARY 110 distance=175' 17192-1107 REI 1AB distance=178' 17192-1107 KPP4389AC distance=178' 17200-0801 CHR 151Aa,Ab distance=200' 17200-0801 ENG 60AB distance=200' 17246-1312 RST3973 distance=206' 17398-1244 ALD 65 distance=210' 17231-0706 TOK 312 distance=211' 17318-1336 HU 178 distance=212' 17178-1149 LDS 593AB distance=214' 17178-1149 CRC 23AC distance=214' 17226-0704 KPP4036 distance=216' 17162-1054 LSC 72 distance=217' 17378-1315 CVN 56AB distance=218' 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 17305-1006 RST3978 273 0.5
Show 17293-0959 STF2171 59 1.4 19
Show 17317-0959 HDS2474 151 0.1 20
Show 17309-1055 RST3979 258 0.5 50
Show 17313-1058 HU 673 AB 179 5.6 54
Show 17313-1058 TOK 708 Ba,Bb 319 0.3 54
Show 17321-0912 A 2594 300 0.8 59
Show 17306-1111 GWP2716 123 13.6 66
Show 17326-0901 LDS 605 343 7.6 72
Show 17340-1102 HDS2479 84 0.7 77
Show 17250-0931 FOX 201 AB 124 6.0 89
Show 17250-0931 FOX 201 AC 324 7.2 89
Show 17283-0839 A 29 97 3.2 93
Show 17348-1115 HJ 4964 AB 224 54.9 94
Show 17250-0913 GWP2710 AB 194 58.5 97
Show 17300-0825 STF2169 111 15.5 102
Show 17323-0828 HJ 4960 93 6.1 102
Show 17374-0937 LDS5855 351 3.7 106
Show 17240-0921 RST3972 Aa,Ab 114 0.1 107
Show 17240-0921 TOK 179 AB 298 18.9 107
Show 17254-0850 HDS2460 341 0.7 107
Show 17348-0833 KPP1917 281 15.1 113
Show 17297-0801 RST3977 308 0.3 126
Show 17278-1211 HU 234 AB 214 0.4 132
Show 17278-1211 HU 234 AC 310 5.8 132
Show 17272-1209 HU 175 69 4.5 133
Show 17240-1142 BU 242 AB 79 1.2 136
Show 17240-1142 BU 242 AC 64 9.1 136
Show 17240-1142 BU 242 AD 61 48.3 136
Show 17217-1103 HU 173 345 0.6 142
Show 17319-1230 GWP2722 285 49.3 146
Show 17209-1042 RST3971 80 8.6 147
Show 17260-0745 RST3975 AB 28 1.0 156
Show 17260-0745 GII 246 Aa,Ab 166 0.2 156
Show 17208-0902 A 28 36 2.0 157
Show 17419-0944 HDS2503 150 0.2 170
Show 17199-1121 STF2148 220 5.6 174
Show 17204-1138 ARY 110 237 77.1 175
Show 17192-1107 REI 1 AB 352 8.7 178
Show 17192-1107 KPP4389 AC 142 48.8 178
Show 17200-0801 CHR 151 Aa,Ab 219 0.3 200
Show 17200-0801 ENG 60 AB 232 89.8 200
Show 17246-1312 RST3973 304 0.4 206
Show 17398-1244 ALD 65 190 2.6 210
Show 17231-0706 TOK 312 167 119.8 211
Show 17318-1336 HU 178 354 2.3 212
Show 17178-1149 LDS 593 AB 338 30.1 214
Show 17178-1149 CRC 23 AC 145 4.7 214
Show 17226-0704 KPP4036 85 1.7 216
Show 17162-1054 LSC 72 153 1.1 217
Show 17378-1315 CVN 56 AB 86 3.9 218

 
 
WDS 17305-1006 : COMPONENTS
 
 
  A
B pa=272.7°
sep=0.45"
 
 
17305-1006 A
 
 
Componente originario normalizzato AB Name HD 158577 Coord arcsec 2000 173029.30-100546.3 Mag 8.42
Spectral class G5 (yellow) PmRA 14.00 PmDE -28.0 SAO 160596
HIP 85675 Tycho2 5663-00327-1 HD 158577 GC 23703
BD BD-09 4562
Tycho2
Tycho2 5663-00327-1 Pflag RAmdeg 262.62211952 DEmdeg -10.09625608
PmRA 8.1 PmDE -27.3 E RAmdeg 6 E DEmdeg 8
E pmRA 0.9 E pmDE 0.9 EpRAm 1990.57 EpDEm 1989.43
Num 16 Q RAmdeg 1.3 Q DEmdeg 2.1 Q pmRA 1.3
Q pmDE 2.2 BTmag 9.090 E BTmag 0.018 VTmag 8.244
E VTmag 0.013 Prox 999 TYC T HIP 85675
CCDM AB RAdeg 262.62210056 DEdeg -10.09618806 EpRA 1990 1.69
EpDE 1990 1.19 E RAdeg 6.1 E DEdeg 8.1 Posflg P
Corr 0.1
SAO
SAO 160596 DelFlag RA1950 PmRA1950 0.0003
DE1950 PmDE1950 -0.03 Vmag 8.2 SpType G5
Double code Source 70 CatNum 23703 DM BD-09 4562
DMcomp BDsup HD 158577 M HD 0
GC 23703 RA1950rad 4.57157922 DE1950rad -0.17555292 PmRA2000 0.0005
PmDE2000 -0.027
Hipparcos
Catalog H HIP 85675 Proxy H RAhms 17 30 29.30
DEdms -10 05 46.3 Vmag 8.14 VarFlag R Vmag H
RAdeg 262.622 DEdeg -10.0962 AstroRef A Plx 20.34
CCDM 17305-1006 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 97 Rho 0.549 HD 158577 BD BD-09 4562
CD CP Dm number -09 4562 VIred 0.77
SpType G5 R SpType Coord arcsec 2000 173029.30-100546.3
Hipparcos 2
HIP 85675 Sn 15 So 3 Nc 2
RArad 4.5836200951 DErad -0.1762116973 Plx 19.42 PmRA 11.98
PmDE -27.25 E RArad 1.11 E DErad 0.6 E Plx 1.23
E pmRA 1.36 E pmDE 0.6 Hpmag 8.2842 E Hpmag 0.0025
SHp 0.016 VA 0 BV 0.756 E BV 0.014
VI 0.8
CCDM
Ccdm 17305-1006 RComp Comp A Note1
Note2 Discov num DRAs -0.71 DDEs 13.5
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.4 Sp G5 PmNote *
PmRA 5 PmDE -31 Dm number -09 4562 Cat1 BD
Name2 160596 Cat2 SAO HD 158577 M HD
ADS BDS M ADS BDS N IDS IDS 17250S1001A
HIC 85675
 
 
17305-1006 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 173029.27-100546.3 Mag 10.61 Calc delta mag 2.19
Calc coord yes
CCDM
Ccdm 17305-1006 RComp Comp B Note1
Note2 Discov num RST3978 DRAs DDEs
R dRAs Year 1938 Theta 292 Rho 0.4
Obs 3 Vmag 10.1 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 17250S1001B
HIC 85675