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Doubles in session


Current system
13550-0804
STF 1788 AB
HD 121325


Nearby doubles
15' : 13541-0756
GWP2127

22' : 13559-0820
GWP2144

22' : 13536-0812
CVR 712

23' : 13546-0741
GWP2130AB

24' : 13539-0746
CBL 148

26' : 13533-0806
GWP2120

34' : 13551-0837
GWP2140AB

36' : 13530-0744
GWP2119

48' : 13570-0727
OCC 13

50' : 13539-0850
RST3853

55' : 13586-0810
CBL 436

60' : 13527-0715
GWP2115

60' : 13537-0706
GWP2122

61' : 13510-0818
GWP2102

65' : 13581-0718
GWP2156

72' : 13517-0710
OCC1024

73' : 13572-0659
SLN 28

83' : 13557-0925
J 1609AB

84' : 13577-0917
LDS4421

84' : 13506-0710
OCC1023

85' : 14007-0805
GWP2171

85' : 13540-0640
GWP2124

89' : 13555-0931
HO 261

90' : 14010-0752
RST3857

96' : 13562-0630
UC 2640

97' : 13591-0918
GWP2160



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.

13550-0804 STF 1788 AB (HD 121325)

 
 
13h 54m 58.20s -08° 03' 31.9" P.A. 100.00 sep 3.7 mag 6.68,7.26 Sp F8V+G0 dist. 33.08 pc (107.91 l.y.)
 
 
Coord 2000 13550-0804 Discov num STF1788 Comp AB Coord arcsec 2000 13 54 58.20 -08 03 31.9
Date first 1825 Date last 2019 Obs 254
Pa first 52 Pa last 100.1 P.A. Now (θ) 100.1°
Sep first 2.8 Sep last 3.739 Sep. Now (ρ) 3.739"
Mag pri 6.68 Mag sec 7.26 delta mag (ΔM) 0.58 Spectral class F8V+G0 (yellow-white/yellow)
Pri motion ra -173 Sec motion ra -169
Pri motion dec -033 Sec motion dec -045
Notes N O (See Notes, Orbital solution)
rPM=0.072 (< 0.3, Physical double)
This double is physical.
 
 
13550-0804 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 121325 139618 13 54 58 -08 03 32 STF 1788 AB 2019 254 100 3.7 6.68 7.26 0.58 Y <===
Show 139618 13 54 58 -08 03 32 STF 1788 AC 2015 17 298 112.3 6.68 10.80 4.12
Show 139618 13 54 58 -08 03 32 STF 1788 AD 2015 16 211 143.5 6.68 11.69 5.01
Show 139618 13 54 58 -08 03 32 TOK 570 AE 2015 4 228 647.0 6.68 12.43 5.75
Quintuple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 121325 Constellation Virgo SAO 139618 HIP 67953
Tycho2 5553-01479-1 Gaia DR2 3618910139048607616 HD 121325 HR 5233
GC 18807 ADS 9053 BD BD-07 3728 Distance 33.08
Distance ly 107.91
 
 
ORBITAL ELEMENTS
 
 
Period (P)1036.5072y± 494.0166 Periastron (T)2165.5486y± 381.8551 Semi-major axis (a)5.12252a± 1.82824
Eccentricity (e)0.5392± 0.32446 Inclination (i)73.799°± 17.071 Longitude of periastron (ω)74.113°± 33.372
Node (Ω)114.685°± 15.893 Notesn ReferenceIzm2019
Equinox Last observation2014 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 97.9 3.583
2001 98.1 3.588
2002 98.3 3.593
2003 98.4 3.598
2004 98.6 3.603
2005 98.8 3.607
2006 98.9 3.612
2007 99.1 3.616
2008 99.3 3.620
2009 99.4 3.624
2010 99.6 3.628
2011 99.8 3.632
2012 99.9 3.636
2013 100.1 3.640
2014 100.2 3.643
2015 100.4 3.647
2016 100.6 3.650
2017 100.7 3.653
2018 100.9 3.656
2019 101.0 3.659
2020 101.2 3.661
2021 101.4 3.664
2022 101.5 3.666
2023 101.7 3.669
2024 101.8 3.671
2025 102.0 3.672
2026 102.2 3.674
2027 102.3 3.676
2028 102.5 3.677
2029 102.6 3.679
2030 102.8 3.680


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


 
  


wds13550-0804b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 13550-0804 STF 1788 AB (HD 121325) : NOTES
 
 
discov_num notes refcode
STF1788 AB: A is SB, no orbit. A is X-ray source. Tok2014d
Hopmann's (1970) B and F are interchanged, and his orientational Hop1970
elements contain additional computing errors.
TOK 570 AE: AE can be optical (Pphys=0.24), but accepted because it is bright. Tok2014d
 
 
REFERENCES
 
 
refcode metd author reference
Hop1970 orb - Hopmann, J. 1970OAWMN.178..217H
Hop1970 Astron. Mitt. Wien, #5, 217, 1970
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 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
13550-0804 STF1788 AB 2007 232 99 3.6 6.68 7.26 F8V+G0 NOD 135458.30-080331.6
13550-0804 STF1788 AB 2009 233 100 3.5 6.68 7.26 F8V+G0 NOD 135458.30-080331.6
13550-0804 STF1788 AB 2010 235 100 3.7 6.68 7.26 F8V+G0 NOD 135458.30-080331.6
13550-0804 STF1788 AB 2012 238 100 3.6 6.68 7.26 F8V G0 NOD 135458.30-080331.6
13550-0804 STF1788 AB 2014 239 100 3.6 6.68 7.26 F8V G0 NOD 135458.30-080331.6
13550-0804 STF1788 AB 2016 246 101 3.6 6.68 7.26 F8V+G0 NO 135458.20-080331.9
13550-0804 STF1788 AB 2017 247 102 3.7 6.68 7.26 F8V+G0 NO 135458.20-080331.9
13550-0804 STF1788 AB 2018 250 101 3.7 6.68 7.26 F8V+G0 NO 135458.20-080331.9
13550-0804 STF1788 AB 2019 252 101 3.7 6.68 7.26 F8V+G0 NO 135458.20-080331.9

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

 
 
WDS 13550-0804 STF 1788 AB (HD 121325) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 13550-0804 STF 1788 AB (HD 121325) : MEASURES
 
 
No records found.

 
 
WDS 13550-0804 (HD 121325) : VIRTUAL EYEPIECE
 
 

13550-0804 STF1788A mag 6.68 Sp F8V 13550-0804 STF1788B sep 3.7 P.A. 100.20 mag 7.26 Sp G0 13550-0804 STF1788C sep 111.4 P.A. 298.00 mag 10.8 13550-0804 STF1788D sep 143.2 P.A. 210.80 mag 11.69 13550-0804 TOK 570E sep 643.4 P.A. 227.60 mag 12.43 Sp G0V 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 13550-0804 (HD 121325) : ALADIN DSS IMAGE @ 13h 54m 58.20s -08° 03' 31.9"
 
 
 
 
WDS 13550-0804 STF 1788 AB (HD 121325) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

13550-0804 STF1788AB distance=0' 13541-0756 GWP2127 distance=15' 13559-0820 GWP2144 distance=22' 13536-0812 CVR 712 distance=22' 13546-0741 GWP2130AB distance=23' 13546-0741 GWP2131AC distance=23' 13539-0746 CBL 148 distance=24' 13533-0806 GWP2120 distance=26' 13551-0837 GWP2140AB distance=34' 13530-0744 GWP2119 distance=36' 13570-0727 OCC 13 distance=48' 13539-0850 RST3853 distance=50' 13586-0810 CBL 436 distance=55' 13527-0715 GWP2115 distance=60' 13537-0706 GWP2122 distance=60' 13510-0818 GWP2102 distance=61' 13581-0718 GWP2156 distance=65' 13517-0710 OCC1024 distance=72' 13572-0659 SLN 28 distance=73' 13557-0925 J 1609AB distance=83' 13557-0925 RAP 19Aa,Ab distance=83' 13577-0917 LDS4421 distance=84' 13506-0710 OCC1023 distance=84' 14007-0805 GWP2171 distance=85' 13540-0640 GWP2124 distance=85' 13555-0931 HO 261 distance=89' 14010-0752 RST3857 distance=90' 13562-0630 UC 2640 distance=96' 13591-0918 GWP2160 distance=97' 13589-0926 GWP2158 distance=101' 13547-0622 GWP2133 distance=102' 13559-0945 TOK 158 distance=103' 13480-0801 GWP2091 distance=104' 13591-0637 RST4521 distance=107' 13584-0624 OCC 643 distance=112' 14009-0645 OCC 35 distance=119' 14030-0749 GWP2192 distance=121' 13484-0651 LDS4409 distance=122' 13495-0619 MRA 21AB distance=132' 13514-0603 HJ 1243 distance=132' 13506-0608 BRT 450 distance=133' 13540-0551 WIS 238 distance=134' 14020-0930 WIS 243 distance=136' 13593-0603 GWP2161 distance=138' 13598-1001 GWP2162AB distance=138' 13572-0548 GWP2151 distance=140' 14037-0904 KPP 303 distance=143' 13574-0545 GWP2152 distance=144' 14044-0723 GWP2205 distance=147' 13472-0943 KUI 65 distance=152' 13447-0757 NSN 120 distance=154' 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 13550-0804 STF1788 AB 100 3.7
Show 13550-0804 STF1788 AC 298 112.3
Show 13550-0804 STF1788 AD 211 143.5
Show 13550-0804 TOK 570 AE 228 647.0
Show 13541-0756 GWP2127 277 305.8 15
Show 13559-0820 GWP2144 8 350.3 22
Show 13536-0812 CVR 712 32 8.1 22
Show 13546-0741 GWP2130 AB 232 3.6 23
Show 13546-0741 GWP2131 AC 21 73.8 23
Show 13539-0746 CBL 148 216 18.7 24
Show 13533-0806 GWP2120 236 21.6 26
Show 13551-0837 GWP2140 AB 165 315.6 34
Show 13530-0744 GWP2119 281 362.2 36
Show 13570-0727 OCC 13 -1 0.1 48
Show 13539-0850 RST3853 107 0.6 50
Show 13586-0810 CBL 436 144 13.5 55
Show 13527-0715 GWP2115 289 12.4 60
Show 13537-0706 GWP2122 4 598.7 60
Show 13510-0818 GWP2102 315 26.2 61
Show 13581-0718 GWP2156 104 225.0 65
Show 13517-0710 OCC1024 -1 0.0 72
Show 13572-0659 SLN 28 50 26.1 73
Show 13557-0925 J 1609 AB 280 10.7 83
Show 13557-0925 RAP 19 Aa,Ab 67 0.1 83
Show 13577-0917 LDS4421 15 46.3 84
Show 13506-0710 OCC1023 -1 0.0 84
Show 14007-0805 GWP2171 31 56.4 85
Show 13540-0640 GWP2124 85 392.5 85
Show 13555-0931 HO 261 181 7.1 89
Show 14010-0752 RST3857 226 1.5 90
Show 13562-0630 UC 2640 215 58.7 96
Show 13591-0918 GWP2160 206 13.2 97
Show 13589-0926 GWP2158 150 176.1 101
Show 13547-0622 GWP2133 59 248.4 102
Show 13559-0945 TOK 158 204 8.8 103
Show 13480-0801 GWP2091 143 21.7 104
Show 13591-0637 RST4521 248 4.3 107
Show 13584-0624 OCC 643 -1 0.1 112
Show 14009-0645 OCC 35 -1 0.1 119
Show 14030-0749 GWP2192 90 14.5 121
Show 13484-0651 LDS4409 3 22.1 122
Show 13495-0619 MRA 21 AB 245 1.0 132
Show 13514-0603 HJ 1243 151 8.5 132
Show 13506-0608 BRT 450 245 2.6 133
Show 13540-0551 WIS 238 152 999.9 134
Show 14020-0930 WIS 243 53 999.9 136
Show 13593-0603 GWP2161 336 39.5 138
Show 13598-1001 GWP2162 AB 87 379.3 138
Show 13572-0548 GWP2151 307 377.2 140
Show 14037-0904 KPP 303 281 3.9 143
Show 13574-0545 GWP2152 94 17.2 144

 
 
WDS 13550-0804 : COMPONENTS
 
 
  A B C D
B pa=100.2°
sep=3.70"
 
C pa=298.0°
sep=111.41"
pa=297.5°
sep=114.95"
 
D pa=210.8°
sep=143.15"
pa=212.2°
sep=144.50"
pa=171.9°
sep=177.03"
 
E pa=227.6°
sep=643.40"
pa=227.9°
sep=645.66"
pa=217.8°
sep=615.11"
pa=232.3°
sep=508.01"
 
 
13550-0804 A
 
 
Name HD 121325 Coord arcsec 2000 135458.20-080331.9 Mag 6.68 Spectral class F8V (yellow-white)
PmRA -173.00 PmDE -33.0 SAO 139618 HIP 67953
Tycho2 5553-01479-1 HD 121325 HR 5233 GC 18807
BD BD-07 3728
Tycho2
Tycho2 5553-01479-1 Pflag RAmdeg 208.74250464 DEmdeg -8.05884644
PmRA -175.1 PmDE -33.6 E RAmdeg 7 E DEmdeg 6
E pmRA 1.1 E pmDE 1.0 EpRAm 1990.82 EpDEm 1991.21
Num 11 Q RAmdeg 2.1 Q DEmdeg 1.7 Q pmRA 2.0
Q pmDE 1.7 BTmag 7.201 E BTmag 0.017 VTmag 6.685
E VTmag 0.012 Prox 36 TYC T HIP 67953
CCDM A RAdeg 208.74292000 DEdeg -8.05876917 EpRA 1990 1.54
EpDE 1990 1.73 E RAdeg 6.8 E DEdeg 5.5 Posflg
Corr 0.4
SAO
SAO 139618 DelFlag RA1950 PmRA1950 -0.0118
DE1950 PmDE1950 -0.035 Vmag 6.5 SpType F8
Double code Source 70 CatNum 18807 DM BD-07 3728
DMcomp BDsup HD 121325 M HD 0
GC 18807 RA1950rad 3.63178292 DE1950rad -0.13637096 PmRA2000 -0.0116
PmDE2000 -0.03
Hipparcos
Catalog H HIP 67953 Proxy H RAhms 13 54 58.30
DEdms -08 03 31.6 Vmag 6.19 VarFlag R Vmag G
RAdeg 208.743 DEdeg -8.05876 AstroRef A Plx 29.57
CCDM 13549-0804 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 97 Rho 3.563 HD 121325 BD BD-07 3728
CD CP Dm number -07 3728 VIred 0.6
SpType F8V+... R SpType Coord arcsec 2000 135458.30-080331.6
Hipparcos 2
HIP 67953 Sn 15 So 3 Nc 2
RArad 3.643251533 DErad -0.140651967 Plx 30.23 PmRA -175.59
PmDE -33 E RArad 1.04 E DErad 0.69 E Plx 1.54
E pmRA 1.78 E pmDE 1.19 Hpmag 6.2931 E Hpmag 0.0015
SHp 0.009 VA 0 BV 0.53 E BV 0.003
VI 0.6
 
 
13550-0804 B
 
 
Coord arcsec 2000 135458.45-080332.6 Mag 7.26 Spectral class G0 (yellow) PmRA -169.00
PmDE -45.0 Calc delta mag 0.58 Calc coord yes
 
 
13550-0804 C
 
 
Coord arcsec 2000 135451.58-080239.5 Mag 10.8 PmRA -8.00 PmDE 1.0
Calc delta mag 4.12 Calc coord yes
 
 
13550-0804 D
 
 
Coord arcsec 2000 135453.26-080534.8 Mag 11.69 PmRA -30.00 PmDE 24.0
Calc delta mag 5.01 Calc coord yes
 
 
13550-0804 E
 
 
Coord arcsec 2000 135426.20-081045.6 Mag 12.43 Spectral class G0V (yellow) PmRA -163.00
PmDE -28.0 Calc delta mag 5.75 Calc coord yes