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Doubles in session


Current system
11137+2008
STF 1517 AB
HD 97561


Nearby doubles
25' : 11141+2031
STT 573AB
Zosma

73' : 11119+1900
GWP1555

76' : 11151+2120
LDS4077AB

80' : 11153+1851
GWP1564

91' : 11093+1902
VVO 8AB

95' : 11204+1950
LDS4084AB

98' : 11201+2047
SLW 587

102' : 11178+1844
BRT2409

102' : 11078+1908
KPP2561

104' : 11100+2138
COU 176

105' : 11145+1823
LDS4074

107' : 11075+2109
HJ 2558

108' : 11082+1853
CVR1344

109' : 11060+2020
SLW 568

110' : 11128+2158
ELS 2

111' : 11139+2159
CBL 48

112' : 11130+1817
CVR1351

113' : 11157+1819
GWP1566

114' : 11125+2200
CVR1349

115' : 11139+2201
BRT2408

115' : 11068+1908
GWP1538

119' : 11063+1910
GRV 828

121' : 11052+1953
KPP 709

126' : 11212+1859
SLW 590

130' : 11205+1841
TDS7797

132' : 11055+1906
BRT2407



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.

11137+2008 STF 1517 AB (HD 97561)

 
 
11h 13m 40.99s +20° 07' 43.3" P.A. 313.00 sep 0.7 mag 7.54,8.02 Sp G5V dist. 54.5 pc (177.78 l.y.)
 
 
Coord 2000 11137+2008 Discov num STF1517 Comp AB Coord arcsec 2000 11 13 40.99 +20 07 43.3
Date first 1829 Date last 2018 Obs 229
Pa first 288 Pa last 312.7 P.A. Now (θ) 312.7°
Sep first 1.1 Sep last 0.71 Sep. Now (ρ) 0.71"
Mag pri 7.54 Mag sec 8.02 delta mag (ΔM) 0.48 Spectral class G5V (yellow)
Pri motion ra -388 Sec motion ra -388
Pri motion dec -123 Sec motion dec -125
Notes N O (See Notes, Orbital solution)
rPM=0.005 (< 0.3, Physical double)
This double is physical.
 
 
11137+2008 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 97561 81725 11 13 41 +20 07 43 STF 1517 AB 2018 229 313 0.7 7.54 8.02 0.48 Y <===
Show 81725 11 13 41 +20 07 43 BU 1431 AB,C 2015 13 97 246.1 7.54 10.83 3.29
Triple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 97561 Constellation Leo SAO 81725 HIP 54844
Tycho2 1439-01487-1 HD 97561 GC 15428 ADS 8094
BD BD+20 2572 Distance 54.5 Distance ly 177.78
 
 
ORBITAL ELEMENTS
 
 
Period (P)924y Periastron (T)1393.49y Semi-major axis (a)2.278a
Eccentricity (e)0.489 Inclination (i)93.6° Longitude of periastron (ω)256.5°
Node (Ω)120.4° Notesn ReferenceFMR2015b
Equinox2000 Last observation2011 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 320.4 0.569
2001 320.1 0.578
2002 319.7 0.586
2003 319.4 0.595
2004 319.1 0.603
2005 318.8 0.611
2006 318.5 0.620
2007 318.2 0.628
2008 318.0 0.637
2009 317.7 0.645
2010 317.4 0.654
2011 317.2 0.662
2012 316.9 0.671
2013 316.7 0.679
2014 316.4 0.688
2015 316.2 0.696
2016 316.0 0.704
2017 315.8 0.713
2018 315.5 0.721
2019 315.3 0.730
2020 315.1 0.738
2021 314.9 0.747
2022 314.7 0.755
2023 314.5 0.764
2024 314.4 0.772
2025 314.2 0.780
2026 314.0 0.789
2027 313.8 0.797
2028 313.6 0.806
2029 313.5 0.814
2030 313.3 0.822


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


 
  


wds11137%2B2008c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 11137+2008 STF 1517 AB (HD 97561) : NOTES
 
 
discov_num notes refcode
STF1517 Alternate spectral types G5III, G7IV. Slightly variable.
See Baize & Petit (1989) catalog of doubles with variable component. Baz1989d
Hopmann orbit rejected from Fourth Orbit Catalog Hop1970
("period over 4000 years") Wor1983
BU 1431 AB,C: Optical pair, based on study of relative motion of the
components using the method of apparent motion parameters. Kiy2008
 
 
REFERENCES
 
 
refcode metd author reference
Baz1989d - Baize, P. & Petit, M. 1989A&AS...77..497B
Baz1989d A&AS 77, 497, 1989
FMR2015b orb - Rica Romero, F.M. ...................
FMR2015b Webb Soc., Double Star Circ. 23, 13, 2015
Hop1970 orb - Hopmann, J. 1970OAWMN.178..217H
Hop1970 Astron. Mitt. Wien, #5, 217, 1970
Kiy2008 - Kiyaeva, O.V., Kiselev, A.A. & Izmailov, I.S. 2008SvAL...32..405K
Kiy2008 SvAL 34, 405, 2008
Wor1983 - Worley, C.E. & Heintz, W.D. 1983PUSNO..24g...1W
Wor1983 Pub. USNO 24, Pt. 7, 1983 (Fourth Orbit Catalog)
 
 
DISCOVERER
 
 
idgroup discov author
1 BU Burnham, S.W. (BU 1 - 81)
179 STF Struve, F.G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
11137+2008 STF1517 AB 2007 219 316 0.6 7.54 8.02 G5V NOD 111341.22+200744.9
11137+2008 STF1517 AB 2010 222 320 0.7 7.54 8.02 G5V NOD 111341.22+200744.9
11137+2008 STF1517 AB 2011 217 319 0.7 7.54 8.02 G5V NO 111341.22+200744.9
11137+2008 STF1517 AB 2013 218 316 0.7 7.54 8.02 G5V NO 111341.22+200744.9
11137+2008 STF1517 AB 2014 219 317 0.7 7.54 8.02 G5V NO 111341.22+200744.9
11137+2008 STF1517 AB 2015 220 318 0.7 7.54 8.02 G5V NO 111341.22+200744.9
11137+2008 STF1517 AB 2017 222 314 0.7 7.54 8.02 G5V NO 111340.99+200743.3
11137+2008 STF1517 AB 2018 224 313 0.7 7.54 8.02 G5V NO 111340.99+200743.3

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

 
 
WDS 11137+2008 STF 1517 AB (HD 97561) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 11137+2008 STF 1517 AB (HD 97561) : MEASURES
 
 
No records found.

 
 
WDS 11137+2008 (HD 97561) : VIRTUAL EYEPIECE
 
 

11137+2008 STF1517A mag 7.54 Sp G5V 11137+2008 STF1517B sep 0.7 P.A. 314.50 mag 8.02 11137+2008 BU 1431C sep 231.3 P.A. 97.10 mag 10.83 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 11137+2008 (HD 97561) : ALADIN DSS IMAGE @ 11h 13m 40.99s +20° 07' 43.3"
 
 
 
 
WDS 11137+2008 STF 1517 AB (HD 97561) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

11137+2008 STF1517AB distance=0' 11141+2031 STT 573AB (Zosma) distance=25' 11141+2031 BU 1282AC (Zosma) distance=25' 11141+2031 DAL 35AD (Zosma) distance=25' 11119+1900 GWP1555 distance=73' 11151+2120 LDS4077AB distance=76' 11151+2120 WNO 36AC distance=76' 11153+1851 GWP1564 distance=80' 11093+1902 VVO 8AB distance=91' 11204+1950 LDS4084AB distance=95' 11204+1950 WNO 37AC distance=95' 11201+2047 SLW 587 distance=98' 11178+1844 BRT2409 distance=102' 11078+1908 KPP2561 distance=102' 11100+2138 COU 176 distance=104' 11145+1823 LDS4074 distance=105' 11075+2109 HJ 2558 distance=107' 11082+1853 CVR1344 distance=108' 11060+2020 SLW 568 distance=109' 11128+2158 ELS 2 distance=110' 11139+2159 CBL 48 distance=111' 11130+1817 CVR1351 distance=112' 11157+1819 GWP1566 distance=113' 11125+2200 CVR1349 distance=114' 11139+2201 BRT2408 distance=115' 11068+1908 GWP1538 distance=115' 11063+1910 GRV 828 distance=119' 11052+1953 KPP 709 distance=121' 11212+1859 SLW 590 distance=126' 11205+1841 TDS7797 distance=130' 11055+1906 BRT2407 distance=132' 11230+2007 BRT2411AB distance=132' 11126+2223 CVR 598 distance=137' 11084+1812 GWP1543 distance=138' 11235+2009 SLW 594 distance=139' 11234+1930 UC 2128 distance=142' 11036+1948 CVR1338 distance=144' 11075+2203 HDS1586 distance=145' 11219+2140 CVR1361 distance=148' 11223+1841 LDS4090 distance=149' 11246+2024 CVR 117 distance=155' 11245+2037 STF1537 distance=155' 11036+1851 J 1262 distance=162' 11218+1811 STF1534 distance=164' 11210+2218 ITF 182AB distance=166' 11210+2218 ITF 182AC distance=166' 11218+2208 LDS4088 distance=166' 11160+2253 CVR 600 distance=169' 11148+2257 POU3098 distance=171' 11141+2258 POU3097 distance=172' 11135+2259 CVR1352 distance=172' 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 11137+2008 STF1517 AB 313 0.7
Show 11137+2008 BU 1431 AB,C 97 246.1
Show Zosma 11141+2031 STT 573 AB 341 202.7 25
Show Zosma 11141+2031 BU 1282 AC 31 95.5 25
Show Zosma 11141+2031 DAL 35 AD 38 44.8 25
Show 11119+1900 GWP1555 88 299.2 73
Show 11151+2120 LDS4077 AB 275 11.5 76
Show 11151+2120 WNO 36 AC 58 19.6 76
Show 11153+1851 GWP1564 132 12.4 80
Show 11093+1902 VVO 8 AB 275 27.2 91
Show 11204+1950 LDS4084 AB 220 17.1 95
Show 11204+1950 WNO 37 AC 61 23.1 95
Show 11201+2047 SLW 587 86 26.4 98
Show 11178+1844 BRT2409 104 3.8 102
Show 11078+1908 KPP2561 197 23.1 102
Show 11100+2138 COU 176 76 0.8 104
Show 11145+1823 LDS4074 161 2.7 105
Show 11075+2109 HJ 2558 268 22.9 107
Show 11082+1853 CVR1344 6 4.0 108
Show 11060+2020 SLW 568 28 28.7 109
Show 11128+2158 ELS 2 89 3.7 110
Show 11139+2159 CBL 48 190 15.5 111
Show 11130+1817 CVR1351 293 3.0 112
Show 11157+1819 GWP1566 180 191.0 113
Show 11125+2200 CVR1349 211 4.7 114
Show 11139+2201 BRT2408 342 4.2 115
Show 11068+1908 GWP1538 288 17.6 115
Show 11063+1910 GRV 828 156 28.5 119
Show 11052+1953 KPP 709 80 6.3 121
Show 11212+1859 SLW 590 303 19.8 126
Show 11205+1841 TDS7797 251 6.0 130
Show 11055+1906 BRT2407 358 3.2 132
Show 11230+2007 BRT2411 AB 316 3.1 132
Show 11126+2223 CVR 598 106 16.9 137
Show 11084+1812 GWP1543 339 6.5 138
Show 11235+2009 SLW 594 63 8.1 139
Show 11234+1930 UC 2128 156 10.4 142
Show 11036+1948 CVR1338 158 4.6 144
Show 11075+2203 HDS1586 199 13.8 145
Show 11219+2140 CVR1361 14 3.9 148
Show 11223+1841 LDS4090 38 10.2 149
Show 11246+2024 CVR 117 33 13.0 155
Show 11245+2037 STF1537 2.0 155
Show 11036+1851 J 1262 176 2.1 162
Show 11218+1811 STF1534 314 5.1 164
Show 11210+2218 ITF 182 AB 64 4.3 166
Show 11210+2218 ITF 182 AC 75 9.6 166
Show 11218+2208 LDS4088 179 40.1 166
Show 11160+2253 CVR 600 240 26.9 169
Show 11148+2257 POU3098 128 8.4 171
Show 11141+2258 POU3097 319 11.4 172

 
 
WDS 11137+2008 : COMPONENTS
 
 
  A B
B pa=314.5°
sep=0.69"
 
C pa=97.1°
sep=231.29"
pa=97.2°
sep=231.83"
 
 
11137+2008 A
 
 
Name HD 97561 Coord arcsec 2000 111340.99+200743.3 Mag 7.54 Spectral class G5V (yellow)
PmRA -388.00 PmDE -123.0 SAO 81725 HIP 54844
Tycho2 1439-01487-1 HD 97561 GC 15428 BD BD+20 2572
Tycho2
Tycho2 1439-01487-1 Pflag RAmdeg 168.42077625 DEmdeg 20.12877247
PmRA -387.6 PmDE -125.1 E RAmdeg 4 E DEmdeg 5
E pmRA 0.9 E pmDE 0.9 EpRAm 1991.44 EpDEm 1991.14
Num 15 Q RAmdeg 1.5 Q DEmdeg 1.2 Q pmRA 1.6
Q pmDE 1.1 BTmag 7.896 E BTmag 0.015 VTmag 7.050
E VTmag 0.010 Prox 999 TYC T HIP 54844
CCDM AB RAdeg 168.42171889 DEdeg 20.12906083 EpRA 1990 1.78
EpDE 1990 1.70 E RAdeg 4.1 E DEdeg 4.6 Posflg P
Corr 0.3
SAO
SAO 81725 DelFlag RA1950 PmRA1950 -0.0273
DE1950 PmDE1950 -0.134 Vmag 6.9 SpType G0
Double code Source 70 CatNum 15428 DM BD+20 2572
DMcomp BDsup HD 97561 M HD 0
GC 15428 RA1950rad 2.92804585 DE1950rad 0.35609594 PmRA2000 -0.0273
PmDE2000 -0.129
Hipparcos
Catalog H HIP 54844 Proxy H RAhms 11 13 41.22
DEdms +20 07 44.9 Vmag 6.93 VarFlag R Vmag G
RAdeg 168.422 DEdeg 20.1291 AstroRef A Plx 19.48
CCDM 11137+2008 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 143 Rho 0.503 HD 97561 BD BD+20 2572
CD CP Dm number +20 2572 VIred 0.81
SpType G5III R SpType Coord arcsec 2000 111341.22+200744.9
Hipparcos 2
HIP 54844 Sn 15 So 3 Nc 2
RArad 2.9395138321 DErad 0.3513196193 Plx 18.35 PmRA -388.9
PmDE -121.11 E RArad 0.88 E DErad 0.99 E Plx 0.96
E pmRA 1.37 E pmDE 1.75 Hpmag 7.0683 E Hpmag 0.0011
SHp 0.008 VA 0 BV 0.75 E BV 0.002
VI 0.81
CCDM
Ccdm 11137+2008 RComp Comp A Note1
Note2 Discov num DRAs -1.00 DDEs -16.5
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.7 Sp G0 PmNote *
PmRA -383 PmDE -131 Dm number +20 2572 Cat1 BD
Name2 +20 1242 Cat2 AGK2/3 HD 97561 M HD
ADS BDS A 8094 M ADS BDS N IDS IDS 11084N2041A
HIC 54844
 
 
11137+2008 B
 
 
Coord arcsec 2000 111340.96+200743.8 Mag 8.02 PmRA -388.00 PmDE -125.0
Calc delta mag 0.48 Calc coord yes
CCDM
Ccdm 11137+2008 RComp Comp B Note1 *
Note2 Discov num STF1517 DRAs DDEs
R dRAs Year 1958 Theta 349 Rho 0.3
Obs 99 Vmag 7.7 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 8094 M ADS BDS N N IDS IDS 11084N2041B
HIC 54844
 
 
11137+2008 C
 
 
Coord arcsec 2000 111357.28+200714.6 Mag 10.83 PmRA -22.00 PmDE 1.0
Tycho2 1439-02469-1 Calc delta mag 3.29 Calc coord yes
Tycho2
Tycho2 1439-02469-1 Pflag RAmdeg 168.49159571 DEmdeg 20.11953220
PmRA -21.0 PmDE 1.4 E RAmdeg 30 E DEmdeg 28
E pmRA 1.2 E pmDE 1.2 EpRAm 1982.73 EpDEm 1980.90
Num 6 Q RAmdeg 1.1 Q DEmdeg 0.9 Q pmRA 1.0
Q pmDE 0.9 BTmag 11.260 E BTmag 0.059 VTmag 10.832
E VTmag 0.063 Prox 999 TYC T HIP
CCDM RAdeg 168.49164361 DEdeg 20.11951944 EpRA 1990 1.81
EpDE 1990 1.79 E RAdeg 34.0 E DEdeg 39.1 Posflg
Corr 0.3