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Current system
13539-1440
RST 3852
HD 121136


Nearby doubles
15' : 13549-1442
HJ 2691

29' : 13542-1508
SKI 7

37' : 13562-1429
GWP2148

41' : 13560-1505
TDS9036

55' : 13551-1531
GWP2139

56' : 13542-1535
UC 2631

59' : 13500-1455
GWP2098

63' : 13549-1541
GWP2136

64' : 13568-1353
RST3855

67' : 13579-1409
UC 2647

67' : 13540-1333
GWP2123

72' : 13499-1523
BRT 582

74' : 13541-1326
GWP2125AB

81' : 13542-1601
GWP2128

82' : 13560-1324
GWP2147

88' : 13558-1602
UC 2637

93' : 13526-1610
SKI 12AB

99' : 13560-1306
GWP2146

100' : 13565-1612
OCC 895

101' : 13481-1345
DEA 1

107' : 14012-1452
OCC 144

110' : 14000-1337
GWP2166

114' : 14014-1409
HJ 2696

116' : 14009-1536
GWP2176AB

119' : 13581-1621
NSN 421

121' : 14015-1528
GWP2182



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.

13539-1440 RST 3852 (HD 121136)

 
 
13h 53m 51.68s -14° 39' 50.8" P.A. 325.00 sep 0.2 mag 7.85,8.92 Sp F0/2V dist. 215.05 pc (701.49 l.y.)
 
 
Coord 2000 13539-1440 Discov num RST3852 Comp Coord arcsec 2000 13 53 51.68 -14 39 50.8
Date first 1937 Date last 2023 Obs 33
Pa first 140 Pa last 325 P.A. Now (θ) 320.3° (calc)
Sep first 0.3 Sep last 0.244 Sep. Now (ρ) 0.238" (calc)
Mag pri 7.85 Mag sec 8.92 delta mag (ΔM) 1.07 Spectral class F0/2V (yellow-white)
Pri motion ra +021 Sec motion ra
Pri motion dec -018 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 121136 Constellation Virgo SAO 158220 HIP 67580
Tycho2 5559-00643-1 Gaia DR2 6302015585120003712 HD 121136 BD BD-13 3786
Distance 215.05 Distance ly 701.49
 
 
ORBITAL ELEMENTS
 
 
Period (P)87.65y± 1.93 Periastron (T)1983.79y± 0.78 Semi-major axis (a)0.2097a± 0.0026
Eccentricity (e)0.2161± 0.0109 Inclination (i)126.3°± 1.3 Longitude of periastron (ω)30.8°± 5.4
Node (Ω)156.7°± 1.1 Notesn ReferenceTok2025b
Equinox Last observation2025 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 20.1 0.147
2001 15.5 0.155
2002 11.4 0.164
2003 7.7 0.172
2004 4.4 0.181
2005 1.3 0.189
2006 358.5 0.196
2007 355.9 0.204
2008 353.5 0.210
2009 351.2 0.216
2010 349.0 0.222
2011 346.9 0.227
2012 345.0 0.232
2013 343.1 0.236
2014 341.2 0.239
2015 339.4 0.242
2016 337.6 0.244
2017 335.9 0.246
2018 334.2 0.247
2019 332.5 0.248
2020 330.8 0.248
2021 329.1 0.248
2022 327.4 0.247
2023 325.7 0.245
2024 323.9 0.243
2025 322.1 0.241
2026 320.3 0.238
2027 318.4 0.235
2028 316.5 0.231
2029 314.5 0.227
2030 312.4 0.222
2031 310.3 0.217
2032 308.0 0.212
2033 305.6 0.207
2034 303.1 0.201
2035 300.5 0.195
2036 297.7 0.189
2037 294.7 0.183
2038 291.4 0.177
2039 288.0 0.171
2040 284.3 0.165
2041 280.4 0.160
2042 276.1 0.154
2043 271.6 0.149
2044 266.7 0.144
2045 261.5 0.140
2046 256.1 0.137
2047 250.4 0.134
2048 244.6 0.133
2049 238.6 0.132
2050 232.5 0.132


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds13539-1440b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
WDS 13539-1440 RST 3852 (HD 121136) : NOTES
 
 
discov_num notes refcode
RST3852 Malkov et al. (2012) derive dynamical, photometric, and spectroscopic
masses of 2.88 +/- 1.13, 3.17, and 1.40 Msun, respectively. Mlk2012
 
 
REFERENCES
 
 
refcode metd author reference
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
Tok2025b orb - Tokovinin, A. 2025IAUDS.215....1T
Tok2025b Inf. Circ. 215, 1, 2025
 
 
DISCOVERER
 
 
discov author
MLK Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A.
TOK Tokovinin, A., Cantarutti, R., Tighe, R., Schurter, P., van der Bliek, N.,
TOK Martinez, M., & Mondaca, E.
TOK Tokovinin, A., Corbett, H., Fors, O., Howard, W., Law, N.M., Moe, M.,
TOK Tokovinin, A. & Briceno, C.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr dm_number notes coord_arcsec_2000
13539-1440 RST3852 2008 29 352 0.2 7.85 8.92 F0/2V -13 3786 NO 135351.68-143950.8
13539-1440 RST3852 2009 30 350 0.2 7.85 8.92 F0/2V -13 3786 NO 135351.68-143950.8
13539-1440 RST3852 2015 31 339 0.2 7.85 8.92 F0/2V -13 3786 NO 135351.68-143950.8
13539-1440 RST3852 2018 32 334 0.2 7.85 8.92 F0/2V -13 3786 NO 135351.68-143950.8
13539-1440 RST3852 2023 33 325 0.2 7.85 8.92 F0/2V -13 3786 NO 135351.68-143950.8

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

 
 
WDS 13539-1440 RST 3852 (HD 121136) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 13539-1440 RST 3852 (HD 121136) : MEASURES
 
 
No records found.

 
 
WDS 13539-1440 (HD 121136) : VIRTUAL EYEPIECE
 
 

13539-1440 RST3852A mag 7.85 Sp F0/2V 13539-1440 RST3852B sep 0.2 P.A. 325.00 mag 8.92 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 13539-1440 (HD 121136) : ALADIN DSS IMAGE @ 13h 53m 51.68s -14° 39' 50.8"
 
 
 
 
WDS 13539-1440 RST 3852 (HD 121136) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

13539-1440 RST3852 distance=0' 13549-1442 HJ 2691 distance=15' 13542-1508 SKI 7 distance=29' 13562-1429 GWP2148 distance=37' 13560-1505 TDS9036 distance=41' 13551-1531 GWP2139 distance=55' 13542-1535 UC 2631 distance=56' 13500-1455 GWP2098 distance=59' 13549-1541 GWP2136 distance=63' 13568-1353 RST3855 distance=64' 13579-1409 UC 2647 distance=67' 13540-1333 GWP2123 distance=67' 13499-1523 BRT 582 distance=72' 13541-1326 GWP2125AB distance=74' 13542-1601 GWP2128 distance=81' 13560-1324 GWP2147 distance=82' 13558-1602 UC 2637 distance=88' 13526-1610 SKI 12AB distance=93' 13526-1610 SKI 15AC distance=93' 13560-1306 GWP2146 distance=99' 13565-1612 OCC 895 distance=100' 13481-1345 DEA 1 distance=101' 14012-1452 OCC 144 distance=107' 14000-1337 GWP2166 distance=110' 14014-1409 HJ 2696 distance=114' 14009-1536 GWP2176AB distance=116' 14009-1536 GWP2177AC distance=116' 13581-1621 NSN 421 distance=119' 14015-1528 GWP2182 distance=121' 14022-1454 GWP2185 distance=122' 13579-1629 GWP2155 distance=124' 13515-1641 GWP2105AB distance=126' 13515-1641 GWP2106AC distance=126' 13494-1248 GWP2094 distance=130' 14024-1340 LDS4428 distance=135' 13552-1227 OCC 110 distance=135' 13472-1305 LDS4405AB distance=135' 13572-1233 HJ 4637 distance=137' 13456-1546 HJ 2677AB distance=137' 13456-1546 OCC 331Aa,Ab distance=137' 13456-1546 OCC 331Aa,Ac distance=137' 13448-1403 BRT2736 distance=137' 13497-1233 RST3851 distance=141' 13488-1645 HJ 2683 distance=145' 13446-1540 GWP2077 distance=147' 13488-1648 HJ 2684 distance=148' 14040-1502 GWP2201 distance=149' 13555-1213 RST3854 distance=149' 13544-1711 OCC 856 distance=152' 14014-1636 ARA 74 distance=160' 13467-1642 WIS 234 distance=161' 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 13539-1440 RST3852 325 0.2 0
Show 13549-1442 HJ 2691 108 13.7 15
Show 13542-1508 SKI 7 110 2.5 29
Show 13562-1429 GWP2148 39 9.0 37
Show 13560-1505 TDS9036 89 0.8 41
Show 13551-1531 GWP2139 98 275.9 55
Show 13542-1535 UC 2631 234 21.1 56
Show 13500-1455 GWP2098 294 13.3 59
Show 13549-1541 GWP2136 155 44.9 63
Show 13568-1353 RST3855 122 2.0 64
Show 13579-1409 UC 2647 104 44.6 67
Show 13540-1333 GWP2123 46 10.0 67
Show 13499-1523 BRT 582 134 3.7 72
Show 13541-1326 GWP2125 AB 229 13.1 74
Show 13542-1601 GWP2128 217 412.5 81
Show 13560-1324 GWP2147 235 176.2 82
Show 13558-1602 UC 2637 136 28.4 88
Show 13526-1610 SKI 12 AB 334 3.5 93
Show 13526-1610 SKI 15 AC 277 19.9 93
Show 13560-1306 GWP2146 95 11.7 99
Show 13565-1612 OCC 895 -1 0.1 100
Show 13481-1345 DEA 1 292 67.3 101
Show 14012-1452 OCC 144 -1 0.1 107
Show 14000-1337 GWP2166 16 100.4 110
Show 14014-1409 HJ 2696 106 17.4 114
Show 14009-1536 GWP2176 AB 293 117.8 116
Show 14009-1536 GWP2177 AC 47 474.8 116
Show 13581-1621 NSN 421 204 0.7 119
Show 14015-1528 GWP2182 331 61.0 121
Show 14022-1454 GWP2185 273 12.7 122
Show 13579-1629 GWP2155 297 198.2 124
Show 13515-1641 GWP2105 AB 121 6.8 126
Show 13515-1641 GWP2106 AC 124 6.4 126
Show 13494-1248 GWP2094 205 162.7 130
Show 14024-1340 LDS4428 142 26.5 135
Show 13552-1227 OCC 110 -1 0.1 135
Show 13472-1305 LDS4405 AB 317 12.6 135
Show 13572-1233 HJ 4637 143 13.5 137
Show 13456-1546 HJ 2677 AB 313 43.5 137
Show 13456-1546 OCC 331 Aa,Ab -1 0.0 137
Show 13456-1546 OCC 331 Aa,Ac -1 0.1 137
Show 13448-1403 BRT2736 253 2.3 137
Show 13497-1233 RST3851 215 2.7 141
Show 13488-1645 HJ 2683 28 14.7 145
Show 13446-1540 GWP2077 226 5.0 147
Show 13488-1648 HJ 2684 231 29.4 148
Show 14040-1502 GWP2201 332 47.0 149
Show 13555-1213 RST3854 272 4.2 149
Show 13544-1711 OCC 856 -1 0.1 152
Show 14014-1636 ARA 74 13 12.8 160
Show 13467-1642 WIS 234 106 869.4 161

 
 
WDS 13539-1440 : COMPONENTS
 
 
  A
B pa=325.0°
sep=0.24"
 
 
13539-1440 A
 
 
Name HD 121136 Coord arcsec 2000 135351.68-143950.8 Mag 7.85 Spectral class F0/2V (yellow-white)
PmRA 21.00 PmDE -18.0 HIP 67850 Tycho2 5559-00643-1
HD 121136 BD BD-13 3786
Tycho2
Tycho2 5559-00643-1 Pflag RAmdeg 208.46538763 DEmdeg -14.66416182
PmRA 15.1 PmDE -19.5 E RAmdeg 5 E DEmdeg 6
E pmRA 0.8 E pmDE 0.8 EpRAm 1990.83 EpDEm 1990.39
Num 20 Q RAmdeg 1.4 Q DEmdeg 1.2 Q pmRA 1.4
Q pmDE 1.2 BTmag 7.867 E BTmag 0.016 VTmag 7.461
E VTmag 0.012 Prox 999 TYC T HIP 67850
CCDM AS RAdeg 208.46535222 DEdeg -14.66411611 EpRA 1990 1.67
EpDE 1990 1.51 E RAdeg 5.1 E DEdeg 6.0 Posflg P
Corr 0.0
Hipparcos
Catalog H HIP 67850 Proxy H RAhms 13 53 51.68
DEdms -14 39 50.8 Vmag 7.42 VarFlag R Vmag H
RAdeg 208.465 DEdeg -14.6641 AstroRef * Plx 7.54
CCDM 17.42 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source S Qual B M HIP AS
Theta 111 Rho 0.164 HD BD BD-13 3786
CD CP Dm number -13 3786 VIred 0.42
SpType F0/F2V R SpType Coord arcsec 2000 135351.68-143950.8
Hipparcos 2
HIP 67850 Sn 55 So 3 Nc 2
RArad 3.638406729 DErad -0.2559370749 Plx 7.6 PmRA 16.29
PmDE -21.61 E RArad 0.57 E DErad 0.49 E Plx 0.72
E pmRA 0.76 E pmDE 0.59 Hpmag E Hpmag 0.0012
SHp 0.01 VA 0 BV 0.369 E BV 0.015
VI 0.43
CCDM
Ccdm 13539-1440 RComp Comp A Note1
Note2 Discov num DRAs -2.16 DDEs 10.0
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.9 Sp F0 PmNote *
PmRA 47 PmDE -7 Dm number -13 3786 Cat1 BD
Name2 158220 Cat2 SAO HD 121136 M HD
ADS BDS M ADS BDS N IDS IDS 13485S1410A
HIC 67850
 
 
13539-1440 B
 
 
Coord arcsec 2000 135351.67-143950.6 Mag 8.92 Delta magnitude 1.07 Coordinate calculated yes
CCDM
Ccdm 13539-1440 RComp Comp B Note1 *
Note2 Discov num RST3852 DRAs DDEs
R dRAs Year 1959 Theta 245 Rho 0.2
Obs 9 Vmag 8.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 13485S1410B
HIC 67850