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Current system
13535-3540
HWE 28 AB
HD 120987


Nearby doubles
43' : 13566-3519
B 2019

46' : 13567-3517
UC 2641

57' : 13577-3604
I 1239

57' : 13497-3611
HDS1945

57' : 13489-3542
HWE 94

58' : 13495-3511
BRT1676

60' : 13501-3622
RST2874

63' : 13503-3452
SKF1231

66' : 13546-3436
SEE 191

68' : 13590-3533
UC 2649

71' : 13550-3432
KPP 299

73' : 13479-3602
RST2869

78' : 13506-3648
TDS8998

78' : 13555-3654
COO 270AB

79' : 13501-3435
BRT1677

80' : 13543-3659
UC 2632

81' : 13514-3657
TDS 726

87' : 14004-3517
B 2020

88' : 13469-3615
HJ 4612

92' : 13499-3700
UC 2622

95' : 13462-3510
UC 2610

97' : 13483-3653
RSS 19

99' : 13586-3424
I 938

100' : 13467-3636
POL 8AB

101' : 13516-3717
NSN 404

102' : 13453-3527
RST2863



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.

13535-3540 HWE 28 AB (HD 120987)

 
 
13h 53m 32.75s -35° 39' 51.2" P.A. 317.00 sep 1.0 mag 6.27,6.38 Sp F4V dist. 52.27 pc (170.5 l.y.)
 
 
Coord 2000 13535-3540 Discov num HWE  28 Comp AB Coord arcsec 2000 13 53 32.75 -35 39 51.2
Date first 1876 Date last 2021 Obs 84
Pa first 270 Pa last 317.1 P.A. Now (θ) 317.4°
Sep first 0.8 Sep last 1.008 Sep. Now (ρ) 1.007"
Mag pri 6.27 Mag sec 6.38 delta mag (ΔM) 0.11 Spectral class F4V (yellow-white)
Pri motion ra -086 Sec motion ra -086
Pri motion dec -021 Sec motion dec -021
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
13535-3540 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 120987 204955 13 53 33 -35 39 51 HWE 28 AB 2021 84 317 1.0 6.27 6.38 0.11 Y <===
Show 204955 13 53 33 -35 39 51 BU 1108 AC 2016 14 150 28.2 6.27 12.30 6.03
Show 204955 13 53 33 -35 39 51 I 1618 AD 2016 5 130 37.9 6.27 14.80 8.53
Show 204955 13 53 33 -35 39 51 H 5 124 AE 2019 19 7 68.2 6.27 8.65 2.38
Quintuple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 120987 Constellation Centaurus SAO 204955 HIP 67819
Tycho2 7291-01975-1 Gaia DR2 6121891150715463296 HD 120987 HR 5222
GC 18761 CD CD-35 9090 CP CP-35 6008 Distance 52.27
Distance ly 170.5
 
 
ORBITAL ELEMENTS
 
 
Period (P)362.9985y± 15.368 Periastron (T)1958.5214y± 0.2243 Semi-major axis (a)1.4886a± 0.04375
Eccentricity (e)0.76736± 0.01353 Inclination (i)74.536°± 0.668 Longitude of periastron (ω)89.984°± 0.571
Node (Ω)113.094°± 0.644 Notesn ReferenceIzm2019
Equinox Last observation2014 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 308.9 0.988
2001 309.3 0.992
2002 309.7 0.995
2003 310.1 0.998
2004 310.4 1.000
2005 310.8 1.002
2006 311.2 1.004
2007 311.5 1.006
2008 311.9 1.007
2009 312.3 1.009
2010 312.7 1.010
2011 313.0 1.011
2012 313.4 1.011
2013 313.8 1.012
2014 314.1 1.012
2015 314.5 1.012
2016 314.9 1.012
2017 315.2 1.012
2018 315.6 1.011
2019 316.0 1.010
2020 316.3 1.010
2021 316.7 1.009
2022 317.1 1.008
2023 317.4 1.007
2024 317.8 1.005
2025 318.2 1.004
2026 318.6 1.003
2027 318.9 1.001
2028 319.3 0.999
2029 319.7 0.997
2030 320.1 0.995


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


 
  


wds13535-3540c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 13535-3540 HWE 28 AB (HD 120987) : NOTES
 
 
discov_num notes refcode
I 1618 AD: WDS has 1 measure in 1927. 2MASS: AD at 28.3" 152d. AD optical? Tok2014d
H 5 124 AE: H V 124.
 
 
REFERENCES
 
 
refcode metd author reference
Izm2019 orb u Izmailov, I.S. 2019AstL...45...30I
Izm2019 Ast. Lett. 45, 30, 2019
Izm2019 (Orbital elements from weighted solutions used when available (Table 2),
Izm2019 unweighted elements (Table 1) used for remaining 29 systems.)
Tok2014d E2 - Tokovinin, A. 2014AJ....147...86T
Tok2014d AJ 147, 86, 2014
 
 
DISCOVERER
 
 
idgroup discov author
1 BU Burnham, S.W. (BU 1 - 81)
179 HWE Howe, H.A.
194 I Innes, R.T.A.
198 I MNRAS 57, 533, 1897 (data also in I__1897b,
198 I I__1897c)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
13535-3540 HWE 28 AB 2006 59 311 1.0 6.27 6.38 F4V NOD 135332.82-353951.1
13535-3540 HWE 28 AB 2009 60 312 1.0 6.27 6.38 F4V NOD 135332.82-353951.1
13535-3540 HWE 28 AB 2011 62 313 1.0 6.27 6.38 F4V NOD 135332.75-353951.2
13535-3540 HWE 28 AB 2014 64 314 1.0 6.27 6.38 F4V NO 135332.75-353951.2
13535-3540 HWE 28 AB 2016 71 317 1.1 6.27 6.38 F4V NO 135332.75-353951.2
13535-3540 HWE 28 AB 2017 76 316 1.0 6.27 6.38 F4V NO 135332.75-353951.2
13535-3540 HWE 28 AB 2018 77 316 1.0 6.27 6.38 F4V NO 135332.75-353951.2
13535-3540 HWE 28 AB 2019 80 317 1.0 6.27 6.38 F4V NO 135332.75-353951.2
13535-3540 HWE 28 AB 2020 82 316 1.0 6.27 6.38 F4V NO 135332.75-353951.2
13535-3540 HWE 28 AB 2021 84 317 1.0 6.27 6.38 F4V NO 135332.75-353951.2

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

 
 
WDS 13535-3540 HWE 28 AB (HD 120987) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 13535-3540 HWE 28 AB (HD 120987) : MEASURES
 
 
No records found.

 
 
WDS 13535-3540 (HD 120987) : VIRTUAL EYEPIECE
 
 

13535-3540 HWE 28A mag 6.27 Sp F4V 13535-3540 HWE 28B sep 0.9 P.A. 322.90 mag 6.38 13535-3540 BU 1108C sep 27.0 P.A. 155.20 mag 12.3 13535-3540 I 1618D sep 33.9 P.A. 135.70 mag 14.8 13535-3540 H 5 124E sep 68.0 P.A. 5.90 mag 8.65 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 13535-3540 (HD 120987) : ALADIN DSS IMAGE @ 13h 53m 32.75s -35° 39' 51.2"
 
 
 
 
WDS 13535-3540 HWE 28 AB (HD 120987) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

13535-3540 HWE 28AB distance=0' 13566-3519 B 2019 distance=43' 13567-3517 UC 2641 distance=46' 13577-3604 I 1239 distance=57' 13497-3611 HDS1945 distance=57' 13489-3542 HWE 94 distance=57' 13495-3511 BRT1676 distance=58' 13501-3622 RST2874 distance=60' 13503-3452 SKF1231 distance=63' 13546-3436 SEE 191 distance=66' 13590-3533 UC 2649 distance=68' 13550-3432 KPP 299 distance=71' 13479-3602 RST2869 distance=73' 13506-3648 TDS8998 distance=78' 13555-3654 COO 270AB distance=78' 13501-3435 BRT1677 distance=79' 13543-3659 UC 2632 distance=80' 13514-3657 TDS 726 distance=81' 14004-3517 B 2020 distance=87' 13469-3615 HJ 4612 distance=88' 13499-3700 UC 2622 distance=92' 13462-3510 UC 2610 distance=95' 13483-3653 RSS 19 distance=97' 13586-3424 I 938 distance=99' 13467-3636 POL 8AB distance=100' 13516-3717 NSN 404 distance=101' 13453-3527 RST2863 distance=102' 14021-3546 UC 2662 distance=105' 13457-3445 WIS 233 distance=112' 14010-3646 RST2883 distance=112' 13562-3353 I 1572 distance=113' 13461-3433 UC 2608 distance=114' 13512-3348 UC 2626 distance=116' 14029-3511 I 1574 distance=118' 13440-3519 RSS 312 distance=119' 14021-3444 KPP1279 distance=119' 13586-3359 TDS9052 distance=119' 13585-3739 RST2882 distance=134' 14046-3539 I 941 distance=135' 13552-3756 KPP1837 distance=138' 14008-3732 TDS9070 distance=142' 14053-3542 RST2888 distance=143' 13513-3315 RST2875 distance=148' 13454-3351 KPP 985 distance=149' 14023-3355 UC 2666 distance=151' 13517-3809 RST2876 distance=151' 13541-3309 SKF1962 distance=152' 13520-3307 PRO 107 distance=154' 14055-3633 DUN 154 distance=155' 13432-3712 RST2862 distance=156' 13535-3816 DUN 149 distance=157' 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 13535-3540 HWE 28 AB 317 1.0
Show 13535-3540 BU 1108 AC 150 28.2
Show 13535-3540 I 1618 AD 130 37.9
Show 13535-3540 H 5 124 AE 7 68.2
Show 13566-3519 B 2019 8 0.2 43
Show 13567-3517 UC 2641 204 14.2 46
Show 13577-3604 I 1239 92 1.0 57
Show 13497-3611 HDS1945 221 0.2 57
Show 13489-3542 HWE 94 11.9 57
Show 13495-3511 BRT1676 225 3.0 58
Show 13501-3622 RST2874 212 1.2 60
Show 13503-3452 SKF1231 292 28.9 63
Show 13546-3436 SEE 191 117 22.4 66
Show 13590-3533 UC 2649 246 28.5 68
Show 13550-3432 KPP 299 236 3.9 71
Show 13479-3602 RST2869 158 1.1 73
Show 13506-3648 TDS8998 269 0.5 78
Show 13555-3654 COO 270 AB 259 3.5 78
Show 13501-3435 BRT1677 129 3.1 79
Show 13543-3659 UC 2632 237 60.2 80
Show 13514-3657 TDS 726 252 1.0 81
Show 14004-3517 B 2020 147 1.5 87
Show 13469-3615 HJ 4612 341 27.2 88
Show 13499-3700 UC 2622 332 20.8 92
Show 13462-3510 UC 2610 212 18.2 95
Show 13483-3653 RSS 19 7 47.9 97
Show 13586-3424 I 938 202 4.2 99
Show 13467-3636 POL 8 AB 86 6.6 100
Show 13516-3717 NSN 404 294 3.2 101
Show 13453-3527 RST2863 275 0.8 102
Show 14021-3546 UC 2662 125 19.0 105
Show 13457-3445 WIS 233 90 494.7 112
Show 14010-3646 RST2883 1.1 112
Show 13562-3353 I 1572 128 2.7 113
Show 13461-3433 UC 2608 146 86.5 114
Show 13512-3348 UC 2626 329 10.6 116
Show 14029-3511 I 1574 322 0.1 118
Show 13440-3519 RSS 312 319 10.6 119
Show 14021-3444 KPP1279 207 9.8 119
Show 13586-3359 TDS9052 170 1.5 119
Show 13585-3739 RST2882 277 0.8 134
Show 14046-3539 I 941 347 0.1 135
Show 13552-3756 KPP1837 190 14.2 138
Show 14008-3732 TDS9070 213 1.9 142
Show 14053-3542 RST2888 260 1.3 143
Show 13513-3315 RST2875 100 0.7 148
Show 13454-3351 KPP 985 81 8.0 149
Show 14023-3355 UC 2666 117 22.6 151
Show 13517-3809 RST2876 58 0.9 151
Show 13541-3309 SKF1962 294 20.3 152
Show 13520-3307 PRO 107 2 6.7 154

 
 
WDS 13535-3540 : COMPONENTS
 
 
  A B C D
B pa=322.9°
sep=0.93"
 
C pa=155.2°
sep=27.02"
pa=154.8°
sep=27.93"
 
D pa=135.7°
sep=33.90"
pa=135.9°
sep=34.82"
pa=88.8°
sep=12.35"
 
E pa=5.9°
sep=68.04"
pa=6.4°
sep=67.36"
pa=357.3°
sep=92.32"
pa=349.7°
sep=93.46"
 
 
13535-3540 A
 
 
Name HD 120987 Coord arcsec 2000 135332.75-353951.2 Mag 6.27 Spectral class F4V (yellow-white)
PmRA -86.00 PmDE -21.0 SAO 204955 HIP 67819
Tycho2 7291-01975-1 HD 120987 HR 5222 GC 18761
CD CD-35 9090 CP CP-35 6008
Tycho2
Tycho2 7291-01975-1 Pflag P RAmdeg 208.38637288 DEmdeg -35.66417573
PmRA -85.8 PmDE -21.3 E RAmdeg 4 E DEmdeg 4
E pmRA 2.1 E pmDE 2.1 EpRAm 1991.62 EpDEm 1991.52
Num 7 Q RAmdeg 2.0 Q DEmdeg 1.2 Q pmRA 2.0
Q pmDE 1.3 BTmag 6.710 E BTmag 0.014 VTmag 6.267
E VTmag 0.010 Prox 9 TYC T HIP 67819
CCDM A RAdeg 208.38673000 DEdeg -35.66419306 EpRA 1990 1.68
EpDE 1990 1.58 E RAdeg 3.7 E DEdeg 4.1 Posflg D
Corr 0.1
SAO
SAO 204955 DelFlag RA1950 PmRA1950 -0.0065
DE1950 PmDE1950 -0.023 Vmag 5.6 SpType F2
Double code Source 70 CatNum 18761 DM CD-35 9090
DMcomp BDsup HD 120987 M HD 0
GC 18761 RA1950rad 3.62424154 DE1950rad -0.61816294 PmRA2000 -0.0064
PmDE2000 -0.019
Hipparcos
Catalog H HIP 67819 Proxy H RAhms 13 53 32.82
DEdms -35 39 51.1 Vmag 5.53 VarFlag R Vmag H
RAdeg 208.387 DEdeg -35.6642 AstroRef A Plx 19.97
CCDM 13535-3540 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 306 Rho 0.941 HD 120987 BD
CD CD-35 9090 CP CP-35 6008 Dm number -35 9090 VIred 0.51
SpType F3V R SpType Coord arcsec 2000 135332.82-353951.1
Hipparcos 2
HIP 67819 Sn 15 So 3 Nc 2
RArad 3.6370349242 DErad -0.6224576089 Plx 19.13 PmRA -83.39
PmDE -25.36 E RArad 0.74 E DErad 0.65 E Plx 0.93
E pmRA 1.06 E pmDE 0.95 Hpmag 5.6321 E Hpmag 0.001
SHp 0.006 VA 0 BV 0.444 E BV 0.007
VI 0.51
CCDM
Ccdm 13535-3540 RComp Comp A Note1
Note2 Discov num DRAs 2.79 DDEs 8.8
R dRAs 41 Year Theta Rho
Obs 5 Vmag 6.3 Sp F2 PmNote *
PmRA -83 PmDE -29 Dm number -35 9090 Cat1 CD
Name2 204955 Cat2 SAO HD 120987 M HD
ADS BDS B 6657 M ADS BDS N IDS IDS 13477S3510A
HIC 67819
 
 
13535-3540 B
 
 
Coord arcsec 2000 135332.70-353950.5 Mag 6.38 PmRA -86.00 PmDE -21.0
HIP 67819 Tycho2 7291-01975-2 Calc delta mag 0.11 Calc coord yes
Tycho2
Tycho2 7291-01975-2 Pflag P RAmdeg 208.38637288 DEmdeg -35.66417573
PmRA -85.8 PmDE -21.3 E RAmdeg 4 E DEmdeg 4
E pmRA 2.1 E pmDE 2.1 EpRAm 1991.62 EpDEm 1991.52
Num 7 Q RAmdeg 2.0 Q DEmdeg 1.2 Q pmRA 2.0
Q pmDE 1.3 BTmag 6.849 E BTmag 0.015 VTmag 6.375
E VTmag 0.010 Prox 9 TYC T HIP 67819
CCDM B RAdeg 208.38647194 DEdeg -35.66404000 EpRA 1990 1.68
EpDE 1990 1.58 E RAdeg 3.8 E DEdeg 4.2 Posflg D
Corr 0.1
Hipparcos
Catalog H HIP 67819 Proxy H RAhms 13 53 32.82
DEdms -35 39 51.1 Vmag 5.53 VarFlag R Vmag H
RAdeg 208.387 DEdeg -35.6642 AstroRef A Plx 19.97
CCDM 13535-3540 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 306 Rho 0.941 HD 120987 BD
CD CD-35 9090 CP CP-35 6008 Dm number -35 9090 VIred 0.51
SpType F3V R SpType Coord arcsec 2000 135332.82-353951.1
Hipparcos 2
HIP 67819 Sn 15 So 3 Nc 2
RArad 3.6370349242 DErad -0.6224576089 Plx 19.13 PmRA -83.39
PmDE -25.36 E RArad 0.74 E DErad 0.65 E Plx 0.93
E pmRA 1.06 E pmDE 0.95 Hpmag 5.6321 E Hpmag 0.001
SHp 0.006 VA 0 BV 0.444 E BV 0.007
VI 0.51
CCDM
Ccdm 13535-3540 RComp Comp B Note1 *
Note2 Discov num HWE 28 DRAs DDEs
R dRAs Year 1960 Theta 264 Rho 0.2
Obs 29 Vmag 6.5 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS B 6657 M ADS BDS N N IDS IDS 13477S3510B
HIC 67819
 
 
13535-3540 C
 
 
Coord arcsec 2000 135333.68-354015.7 Mag 12.3 PmRA -14.00 PmDE -9.0
Calc delta mag 6.03 Calc coord yes
CCDM
Ccdm 13535-3540 RComp Comp C Note1
Note2 Discov num BU 1108 DRAs 3.83 DDEs -16.4
R dRAs 41 Year 1959 Theta 158 Rho 27.7
Obs 6 Vmag 12.5 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS B 6657 M ADS BDS N IDS IDS 13477S3510C
HIC
 
 
13535-3540 D
 
 
Coord arcsec 2000 135334.69-354015.5 Mag 14.8 PmRA 28.00 PmDE -12.0
Calc delta mag 8.53 Calc coord yes
CCDM
Ccdm 13535-3540 RComp Comp D Note1
Note2 Discov num I DRAs 5.00 DDEs -16.6
R dRAs 41 Year Theta 149 Rho 30.0
Obs Vmag 14.5 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS B 6657 M ADS BDS N IDS IDS 13477S3510D
HIC
 
 
13535-3540 E
 
 
Coord arcsec 2000 135333.32-353843.5 Mag 8.65 PmRA -4.00 PmDE 1.0
Tycho2 7291-01978-1 Calc delta mag 2.38 Calc coord yes
Tycho2
Tycho2 7291-01978-1 Pflag RAmdeg 208.38889646 DEmdeg -35.64551379
PmRA -4.1 PmDE -3.9 E RAmdeg 9 E DEmdeg 13
E pmRA 1.3 E pmDE 1.3 EpRAm 1990.44 EpDEm 1988.41
Num 9 Q RAmdeg 1.1 Q DEmdeg 1.3 Q pmRA 1.2
Q pmDE 1.2 BTmag 10.599 E BTmag 0.047 VTmag 8.645
E VTmag 0.017 Prox 671 TYC HIP
CCDM RAdeg 208.38890750 DEdeg -35.64550556 EpRA 1990 1.79
EpDE 1990 1.45 E RAdeg 9.3 E DEdeg 14.4 Posflg
Corr 0.0
CCDM
Ccdm 13535-3540 RComp Comp E Note1
Note2 Discov num H 124 DRAs 3.31 DDEs 75.5
R dRAs 41 Year 1959 Theta 004 Rho 66.7
Obs 4 Vmag 8.5 Sp PmNote *
PmRA 1 PmDE -11 Dm number -35 9089 Cat1 CD
Name2 204956 Cat2 SAO HD M HD
ADS BDS B 6657 M ADS BDS N N IDS IDS 13477S3510E
HIC