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Doubles in session


Current system
15226-4755
SLR 20
HD 136466


Nearby doubles
16' : 15242-4756
B 1286

35' : 15261-4756
TDS 774

39' : 15207-4722
I 961

40' : 15264-4809
I 538

42' : 15185-4753
HJ 4753AB

42' : 15219-4836
VOU 61

45' : 15246-4835
B 1288AB

50' : 15252-4713
RST 766

50' : 15214-4707
RST 760

56' : 15183-4830
RST 758

62' : 15252-4659
RST 767

63' : 15194-4702
RST 759

69' : 15159-4804
HJ 4750

73' : 15196-4901
VOU 59

74' : 15245-4645
HDS2168

74' : 15249-4645
CPO 429

76' : 15152-4751
CPO9195

79' : 15207-4910
VOU 60

80' : 15156-4833
KPP 675

85' : 15295-4844
HDS2179

86' : 15295-4706
RST 774

87' : 15209-4921
CPO 423

96' : 15266-4923
RST 768

97' : 15188-4627
CPO 420

100' : 15242-4933
TDS9507

100' : 15127-4758
CPO 64



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.

15226-4755 SLR 20 (HD 136466)

 
 
15h 22m 36.49s -47° 55' 15.5" P.A. 357.00 sep 0.6 mag 8.33,8.67 Sp G6V dist. 35.46 pc (115.67 l.y.)
 
 
Coord 2000 15226-4755 Discov num SLR  20 Comp Coord arcsec 2000 15 22 36.49 -47 55 15.5
Date first 1895 Date last 2021 Obs 55
Pa first 225 Pa last 356.8 P.A. Now (θ) 356.8°
Sep first 2.0 Sep last 0.606 Sep. Now (ρ) 0.606"
Mag pri 8.33 Mag sec 8.67 delta mag (ΔM) 0.34 Spectral class G6V (yellow)
Pri motion ra -369 Sec motion ra -369
Pri motion dec -255 Sec motion dec -255
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 136466 Constellation Lupus SAO 225709 HIP 75255
Tycho2 8299-01239-1 Gaia DR2 5902780301762458240 HD 136466 GC 20655
GL Gl 582.1A CD CD-47 9926 CP CP-47 7081 Distance 35.46
Distance ly 115.67
 
 
ORBITAL ELEMENTS
 
 
Period (P)429.6y± 4.57 Periastron (T)1972.88y± 1.56 Semi-major axis (a)1.899a± 0.019
Eccentricity (e)0.469± 0.004 Inclination (i)109.7°± 0.5 Longitude of periastron (ω)344.6°± 2
Node (Ω)56°± 0.9 Notesn ReferenceTok2015c
Equinox2000 Last observation2014 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 36.1 0.883
2001 35.0 0.869
2002 33.8 0.854
2003 32.5 0.840
2004 31.2 0.825
2005 29.9 0.810
2006 28.5 0.795
2007 27.0 0.780
2008 25.5 0.765
2009 23.9 0.750
2010 22.3 0.735
2011 20.6 0.720
2012 18.8 0.706
2013 17.0 0.692
2014 15.1 0.678
2015 13.1 0.665
2016 11.0 0.652
2017 8.8 0.640
2018 6.6 0.628
2019 4.3 0.617
2020 1.9 0.607
2021 359.4 0.598
2022 356.8 0.590
2023 354.2 0.582
2024 351.5 0.576
2025 348.8 0.570
2026 346.0 0.566
2027 343.2 0.563
2028 340.3 0.561
2029 337.5 0.561
2030 334.6 0.561


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


 
  


wds15226-4755b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 15226-4755 SLR 20 (HD 136466) : NOTES
 
 
discov_num notes refcode
SLR 20 Motion retrograde.
 
 
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 SLR Sellors, R.P.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15226-4755 SLR 20 1991 50 46 1.0 8.33 8.67 G6V NOD 152236.49-475515.5
15226-4755 SLR 20 2009 51 23 0.8 8.33 8.67 G6V NOD 152236.49-475515.5
15226-4755 SLR 20 2014 53 14 0.7 8.33 8.67 G6V NO 152236.49-475515.5
15226-4755 SLR 20 2021 55 357 0.6 8.33 8.67 G6V NO 152236.49-475515.5

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

 
 
WDS 15226-4755 SLR 20 (HD 136466) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 15226-4755 SLR 20 (HD 136466) : MEASURES
 
 
No records found.

 
 
WDS 15226-4755 (HD 136466) : VIRTUAL EYEPIECE
 
 

15226-4755 SLR 20A mag 8.33 Sp G6V 15226-4755 SLR 20B sep 0.6 P.A. 357.90 mag 8.67 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 15226-4755 (HD 136466) : ALADIN DSS IMAGE @ 15h 22m 36.49s -47° 55' 15.5"
 
 
 
 
WDS 15226-4755 SLR 20 (HD 136466) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

15226-4755 SLR 20 distance=0' 15242-4756 B 1286 distance=16' 15261-4756 TDS 774 distance=35' 15207-4722 I 961 distance=39' 15264-4809 I 538 distance=40' 15185-4753 HJ 4753AB distance=42' 15185-4753 HUB 15AD distance=42' 15185-4753 DUN 180AC distance=42' 15185-4753 ARY 98AE distance=42' 15185-4753 DUN 180BC distance=42' 15219-4836 VOU 61 distance=42' 15246-4835 B 1288AB distance=45' 15246-4835 CPO 428AB,C distance=45' 15252-4713 RST 766 distance=50' 15214-4707 RST 760 distance=50' 15183-4830 RST 758 distance=56' 15252-4659 RST 767 distance=62' 15194-4702 RST 759 distance=63' 15159-4804 HJ 4750 distance=69' 15196-4901 VOU 59 distance=73' 15245-4645 HDS2168 distance=74' 15249-4645 CPO 429 distance=74' 15152-4751 CPO9195 distance=76' 15207-4910 VOU 60 distance=79' 15156-4833 KPP 675 distance=80' 15295-4844 HDS2179 distance=85' 15295-4706 RST 774 distance=86' 15209-4921 CPO 423 distance=87' 15266-4923 RST 768 distance=96' 15188-4627 CPO 420 distance=97' 15242-4933 TDS9507 distance=100' 15127-4758 CPO 64 distance=100' 15176-4923 TDS9470 distance=101' 15325-4817 NSN 386 distance=102' 15221-4938 CPO 424 distance=103' 15183-4931 RST 757 distance=105' 15155-4913 I 960 distance=105' 15132-4711 RSS 368 distance=105' 15123-4817 RST 748 distance=106' 15141-4655 BRT 851 distance=106' 15299-4913 RST 775 distance=107' 15312-4652 RST5589 distance=108' 15222-4605 CPO 425 distance=110' 15119-4735 I 533 distance=110' 15186-4612 I 1267 distance=111' 15236-4947 RSS 372 distance=113' 15336-4732 DUN 187 distance=113' 15237-4948 RST 764 distance=114' 15119-4844 DUN 177 distance=118' 15130-4904 B 1272 distance=118' 15267-4947 I 963 distance=119' 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 15226-4755 SLR 20 357 0.6
Show 15242-4756 B 1286 51 0.3 16
Show 15261-4756 TDS 774 348 1.8 35
Show 15207-4722 I 961 123 2.2 39
Show 15264-4809 I 538 276 1.5 40
Show 15185-4753 HJ 4753 AB 296 0.7 42
Show 15185-4753 HUB 15 AD 157 6.1 42
Show 15185-4753 DUN 180 AC 128 23.1 42
Show 15185-4753 ARY 98 AE 188 102.3 42
Show 15185-4753 DUN 180 BC 128 23.3 42
Show 15219-4836 VOU 61 24 2.5 42
Show 15246-4835 B 1288 AB 133 0.1 45
Show 15246-4835 CPO 428 AB,C 342 8.9 45
Show 15252-4713 RST 766 47 0.8 50
Show 15214-4707 RST 760 270 1.6 50
Show 15183-4830 RST 758 20 1.5 56
Show 15252-4659 RST 767 329 0.7 62
Show 15194-4702 RST 759 331 0.4 63
Show 15159-4804 HJ 4750 16 12.7 69
Show 15196-4901 VOU 59 191 4.0 73
Show 15245-4645 HDS2168 10 8.1 74
Show 15249-4645 CPO 429 284 4.9 74
Show 15152-4751 CPO9195 266 3.6 76
Show 15207-4910 VOU 60 35 5.2 79
Show 15156-4833 KPP 675 190 6.0 80
Show 15295-4844 HDS2179 133 14.2 85
Show 15295-4706 RST 774 8 1.0 86
Show 15209-4921 CPO 423 343 2.7 87
Show 15266-4923 RST 768 146 0.9 96
Show 15188-4627 CPO 420 64 4.9 97
Show 15242-4933 TDS9507 289 2.5 100
Show 15127-4758 CPO 64 351 55.2 100
Show 15176-4923 TDS9470 336 3.0 101
Show 15325-4817 NSN 386 305 33.0 102
Show 15221-4938 CPO 424 278 6.6 103
Show 15183-4931 RST 757 295 3.5 105
Show 15155-4913 I 960 115 0.8 105
Show 15132-4711 RSS 368 77 19.7 105
Show 15123-4817 RST 748 108 1.4 106
Show 15141-4655 BRT 851 206 6.7 106
Show 15299-4913 RST 775 306 0.4 107
Show 15312-4652 RST5589 90 4.4 108
Show 15222-4605 CPO 425 16 42.8 110
Show 15119-4735 I 533 253 2.6 110
Show 15186-4612 I 1267 54 0.5 111
Show 15236-4947 RSS 372 163 20.1 113
Show 15336-4732 DUN 187 216 23.4 113
Show 15237-4948 RST 764 350 2.8 114
Show 15119-4844 DUN 177 143 26.3 118
Show 15130-4904 B 1272 153 3.3 118
Show 15267-4947 I 963 256 2.2 119

 
 
WDS 15226-4755 : COMPONENTS
 
 
  A
B pa=357.9°
sep=0.61"
 
 
15226-4755 A
 
 
Componente originario normalizzato AB Name HD 136466 Coord arcsec 2000 152236.49-475515.5 Mag 8.33
Spectral class G6V (yellow) PmRA -369.00 PmDE -255.0 SAO 225709
HIP 75255 Tycho2 8299-01239-1 HD 136466 GC 20655
CD CD-47 9926 CP CP-47 7081
Tycho2
Tycho2 8299-01239-1 Pflag P RAmdeg 230.65204710 DEmdeg -47.92097283
PmRA -369.4 PmDE -254.5 E RAmdeg 8 E DEmdeg 8
E pmRA 1.8 E pmDE 1.6 EpRAm 1991.34 EpDEm 1991.29
Num 6 Q RAmdeg 1.0 Q DEmdeg 1.4 Q pmRA 1.1
Q pmDE 1.4 BTmag 9.101 E BTmag 0.020 VTmag 8.332
E VTmag 0.014 Prox 10 TYC T HIP 75255
CCDM A RAdeg 230.65322639 DEdeg -47.92044750 EpRA 1990 1.64
EpDE 1990 1.63 E RAdeg 8.3 E DEdeg 8.4 Posflg D
Corr 0.0
SAO
SAO 225709 DelFlag RA1950 PmRA1950 -0.0362
DE1950 PmDE1950 -0.272 Vmag 7.8 SpType G0
Double code Source 70 CatNum 20655 DM CD-47 9926
DMcomp BDsup HD 136466 M HD 0
GC 20655 RA1950rad 4.01046771 DE1950rad -0.8332103 PmRA2000 -0.0363
PmDE2000 -0.272
Hipparcos
Catalog H HIP 75255 Proxy H RAhms 15 22 36.79
DEdms -47 55 13.5 Vmag 7.68 VarFlag R Vmag G
RAdeg 230.653 DEdeg -47.9204 AstroRef A Plx 29.62
CCDM 15226-4755 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 46 Rho 0.991 HD 136466 BD
CD CD-47 9926 CP CP-47 7081 Dm number -47 9926 VIred 0.86
SpType G5V R SpType Coord arcsec 2000 152236.79-475513.5
Hipparcos 2
HIP 75255 Sn 15 So 3 Nc 2
RArad 4.0256591986 DErad -0.8363691372 Plx 28.2 PmRA -359.88
PmDE -257.11 E RArad 0.96 E DErad 0.94 E Plx 1.39
E pmRA 1.17 E pmDE 1.18 Hpmag 7.8192 E Hpmag 0.0019
SHp 0.013 VA 0 BV 0.657 E BV 0.025
VI 0.72
CCDM
Ccdm 15226-4755 RComp Comp A Note1
Note2 Discov num DRAs 0.45 DDEs -15.6
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.4 Sp G0 PmNote *
PmRA -376 PmDE -262 Dm number -47 9926 Cat1 CD
Name2 225709 Cat2 SAO HD 136466 M HD
ADS BDS M ADS BDS N IDS IDS 15157S4733A
HIC 75255
 
 
15226-4755 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 152236.49-475514.9 Mag 8.67 PmRA -369.00
PmDE -255.0 HIP 75255 Tycho2 8299-01239-2 Calc delta mag 0.34
Calc coord yes
Tycho2
Tycho2 8299-01239-2 Pflag P RAmdeg 230.65204710 DEmdeg -47.92097283
PmRA -369.4 PmDE -254.5 E RAmdeg 8 E DEmdeg 8
E pmRA 1.8 E pmDE 1.6 EpRAm 1991.34 EpDEm 1991.29
Num 6 Q RAmdeg 1.0 Q DEmdeg 1.4 Q pmRA 1.1
Q pmDE 1.4 BTmag 9.498 E BTmag 0.023 VTmag 8.669
E VTmag 0.017 Prox 10 TYC T HIP 75255
CCDM B RAdeg 230.65351694 DEdeg -47.92025583 EpRA 1990 1.64
EpDE 1990 1.63 E RAdeg 10.7 E DEdeg 10.9 Posflg D
Corr 0.0
Hipparcos
Catalog H HIP 75255 Proxy H RAhms 15 22 36.79
DEdms -47 55 13.5 Vmag 7.68 VarFlag R Vmag G
RAdeg 230.653 DEdeg -47.9204 AstroRef A Plx 29.62
CCDM 15226-4755 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 46 Rho 0.991 HD 136466 BD
CD CD-47 9926 CP CP-47 7081 Dm number -47 9926 VIred 0.86
SpType G5V R SpType Coord arcsec 2000 152236.79-475513.5
Hipparcos 2
HIP 75255 Sn 15 So 3 Nc 2
RArad 4.0256591986 DErad -0.8363691372 Plx 28.2 PmRA -359.88
PmDE -257.11 E RArad 0.96 E DErad 0.94 E Plx 1.39
E pmRA 1.17 E pmDE 1.18 Hpmag 7.8192 E Hpmag 0.0019
SHp 0.013 VA 0 BV 0.657 E BV 0.025
VI 0.72
CCDM
Ccdm 15226-4755 RComp Comp B Note1
Note2 Discov num SLR 20 DRAs DDEs
R dRAs Year 1960 Theta 077 Rho 0.7
Obs 99 Vmag 8.7 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N N IDS IDS 15157S4733B
HIC 75255