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Current system
11396+2657
STF 1564
HD 101320


Nearby doubles
13' : 11390+2648
SLW 625

19' : 11392+2640
HDS1651

21' : 11389+2715
SLE 610

22' : 11412+2653
SLW 630AB

31' : 11412+2719
MLB 645

44' : 11364+2657
COU 784

49' : 11402+2609
HDS1652

59' : 11355+2716
SLW 618

67' : 11363+2747
STF1555AB

67' : 11409+2802
CVR1376

74' : 11398+2811
A 560

78' : 11406+2814
SLE 613

79' : 11427+2551
SLW 634

82' : 11399+2819
SLE 611

84' : 11347+2745
HJ 2578

84' : 11345+2746
HJ 2577

90' : 11345+2754
SLE 608

93' : 11354+2544
KPP2189

94' : 11386+2829
SLE 609

96' : 11402+2832
SLE 612

97' : 11325+2711
SLE 605

98' : 11324+2710
SLE 606

98' : 11470+2701
HDS1663

100' : 11395+2518
A 678

112' : 11434+2518
RAO 576

113' : 11448+2826
ES 435AB



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.

11396+2657 STF 1564 (HD 101320)

 
 
11h 39m 37.84s +26° 57' 23.7" P.A. 87.00 sep 5.0 mag 8.81,9.33 Sp A3V dist. 431.03 pc (1406.02 l.y.)
 
 
Coord 2000 11396+2657 Discov num STF1564 Comp Coord arcsec 2000 11 39 37.84 +26 57 23.7
Date first 1824 Date last 2018 Obs 48
Pa first 86 Pa last 87.4 P.A. Now (θ) 87.4°
Sep first 5.6 Sep last 5.04 Sep. Now (ρ) 5.04"
Mag pri 8.81 Mag sec 9.33 delta mag (ΔM) 0.52 Spectral class A3V (white)
Pri motion ra -010 Sec motion ra +000
Pri motion dec +000 Sec motion dec -003
Notes
rPM=1.044
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 101320 Constellation Leo SAO 81926 HIP 56878
Tycho2 1984-02612-1 Gaia DR2 4018079481800791936 HD 101320 GC 16002
ADS 8256 BD BD+27 2044 Distance 431.03 Distance ly 1406.02
 
 
WDS 11396+2657 STF 1564 (HD 101320) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
STFA (F. Struve DD - Appendix list #1) ...................
STFB (F. Struve DD - Appendix list #2) ...................
StF1833A Ma - Struve, F.G.W. 1833MmRAS...5...13H
StF1833A +Mc cited by Herschel (MemRAS 5, 13, 1833)
StF1833B Ma - Struve, F.G.W. 1833AN.....10..389B
StF1833B cited by Bessel (AN 10, 389, 1833)
StF1837 Ma - Struve, F.G.W. 1837AN.....14...249
StF1837 Stellarum duplicium et multiplicium mensurae micrometricae...
StF1837 (Dorpat, Academiae scientiarum caesareae petropolitaneifique), 1837
StF1844A Ma - Struve, F.G.W. 1844QB43.S66.......
StF1844A cited by Smyth (Cycle of Celestial Objects 2, 1844)
StF1852A Ma - Struve, F.G.W. .
StF1852A cited by Bishop (Bishop Obs. Astron. Observations 1852)
StF1865A Ma - Struve, F.G.W. 1865AN.....64...81E
StF1865A cited by Engelmann (AN 64, 81, #1518, 1865)
StF1875A Ma - Struve, F.G.W. 1875AN.....85..323D
StF1875A cited by Doberck, 1875 (see Dob1875b,f,g,h)
StF1878 Ma - Struve, F.G.W. .
StF1878 Pulkova Observations 9, 1878
StF1878B Ma - Struve, F.G.W. 1878Obs.....2..239G
StF1878B cited by Gledhill (Obs 2, 239, 1878)
StF1880A Ma - Struve, F.G.W. 1880Obs.....3..535G
StF1880A cited by Gledhill (Obs 3, 535, 1880)
StF1906A Ma - Struve, F.G.W. 1906QB821.B972.....
StF1906A cited in BDS (Burnham Double Star Cat.), 1906
StF1906B Ma - Struve, F.G.W. 1906MmRAS..56....1L
StF1906B cited by Lewis (MemRAS 56, 1, 1906)
StF1922A Ma - Struve, F.G.W. 1922AN....216...49R
StF1922A cited by Rabe (AN 216, 49, 1922)
StF1932A Ma - Struve, F.G.W. 1932QB821.A43......
StF1932A cited in ADS (Aitken Double Star Cat.), 1932
StF2002 - - Weis, J.
StF2002 F. G. W. Struve's double stars : the Dorpat catalogue; the Pulkovo catalogue
StF2002 USNO Library : QB 821 .S8 W49 2002
StF2022 - - email note from Jan Weis: 6 July 2022
StF9999 Ma - Struve, F.G.W. ...................
StF9999 Unpublished, manuscript or reference not found.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
11396+2657 STF1564 2008 43 88 4.9 8.81 9.33 A3V D 113937.84+265723.7
11396+2657 STF1564 2010 46 87 5.2 8.81 9.33 A3V D 113937.84+265723.7
11396+2657 STF1564 2017 47 87 5.3 8.81 9.33 A3V 113937.84+265723.7
11396+2657 STF1564 2018 48 87 5.0 8.81 9.33 A3V 113937.84+265723.7

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

 
 
WDS 11396+2657 STF 1564 (HD 101320) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 11396+2657 STF 1564 (HD 101320) : MEASURES
 
 
No records found.

 
 
WDS 11396+2657 (HD 101320) : VIRTUAL EYEPIECE
 
 

11396+2657 STF1564A mag 8.81 Sp A3V 11396+2657 STF1564B sep 4.5 P.A. 87.10 mag 9.33 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 11396+2657 (HD 101320) : ALADIN DSS IMAGE @ 11h 39m 37.84s +26° 57' 23.7"
 
 
 
 
WDS 11396+2657 STF 1564 (HD 101320) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

11396+2657 STF1564 distance=0' 11390+2648 SLW 625 distance=13' 11392+2640 HDS1651 distance=19' 11389+2715 SLE 610 distance=21' 11412+2653 SLW 630AB distance=22' 11412+2719 MLB 645 distance=31' 11364+2657 COU 784 distance=44' 11402+2609 HDS1652 distance=49' 11355+2716 SLW 618 distance=59' 11363+2747 STF1555AB distance=67' 11363+2747 HJ 503AB,C distance=67' 11409+2802 CVR1376 distance=67' 11398+2811 A 560 distance=74' 11406+2814 SLE 613 distance=78' 11427+2551 SLW 634 distance=79' 11399+2819 SLE 611 distance=82' 11347+2745 HJ 2578 distance=84' 11345+2746 HJ 2577 distance=84' 11345+2754 SLE 608 distance=90' 11354+2544 KPP2189 distance=93' 11386+2829 SLE 609 distance=94' 11402+2832 SLE 612 distance=96' 11325+2711 SLE 605 distance=97' 11324+2710 SLE 606 distance=98' 11470+2701 HDS1663 distance=98' 11395+2518 A 678 distance=100' 11434+2518 RAO 576 distance=112' 11448+2826 ES 435AB distance=113' 11448+2826 SIN 66AC distance=113' 11421+2507 LDS4136 distance=117' 11312+2732 A 559AB distance=118' 11312+2732 GII 175Aa,Ab distance=118' 11343+2832 SLE 607 distance=119' 11374+2853 GRV 840 distance=120' 11442+2513 STT 239 distance=122' 11365+2502 HDS1645 distance=124' 11394+2453 SLW 626 distance=125' 11401+2906 TDS7979 distance=129' 11323+2527 TDS7912AB distance=134' 11323+2527 GII 83AC distance=134' 11460+2843 SKF 178 distance=136' 11294+2633 TDS7887 distance=139' 11484+2532 RAO 267 distance=146' 11504+2626 LDS 927 distance=147' 11436+2442 LDS4138 distance=147' 11358+2437 TOK 895 distance=150' 11368+2923 HJ 2579AB distance=151' 11368+2923 FMR 15AC distance=151' 11286+2726 KPP3240 distance=151' 11334+2912 HJ 2575AC distance=159' 11506+2807 UC 2217 distance=163' 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 11396+2657 STF1564 87 5.0
Show 11390+2648 SLW 625 96 39.9 13
Show 11392+2640 HDS1651 217 0.8 19
Show 11389+2715 SLE 610 273 15.1 21
Show 11412+2653 SLW 630 AB 175 23.2 22
Show 11412+2719 MLB 645 152 2.2 31
Show 11364+2657 COU 784 36 3.2 44
Show 11402+2609 HDS1652 264 0.5 49
Show 11355+2716 SLW 618 177 36.0 59
Show 11363+2747 STF1555 AB 151 0.7 67
Show 11363+2747 HJ 503 AB,C 156 22.5 67
Show 11409+2802 CVR1376 78 3.1 67
Show 11398+2811 A 560 359 4.8 74
Show 11406+2814 SLE 613 5 14.2 78
Show 11427+2551 SLW 634 302 14.7 79
Show 11399+2819 SLE 611 165 34.2 82
Show 11347+2745 HJ 2578 162 21.3 84
Show 11345+2746 HJ 2577 184 4.5 84
Show 11345+2754 SLE 608 227 10.2 90
Show 11354+2544 KPP2189 217 18.0 93
Show 11386+2829 SLE 609 119 10.2 94
Show 11402+2832 SLE 612 329 24.6 96
Show 11325+2711 SLE 605 157 12.5 97
Show 11324+2710 SLE 606 84 10.6 98
Show 11470+2701 HDS1663 192 0.1 98
Show 11395+2518 A 678 226 1.2 100
Show 11434+2518 RAO 576 111 0.5 112
Show 11448+2826 ES 435 AB 347 7.2 113
Show 11448+2826 SIN 66 AC 273 152.4 113
Show 11421+2507 LDS4136 137 10.8 117
Show 11312+2732 A 559 AB 153 2.4 118
Show 11312+2732 GII 175 Aa,Ab 111 0.1 118
Show 11343+2832 SLE 607 348 35.4 119
Show 11374+2853 GRV 840 296 27.0 120
Show 11442+2513 STT 239 32 36.4 122
Show 11365+2502 HDS1645 328 0.2 124
Show 11394+2453 SLW 626 211 8.7 125
Show 11401+2906 TDS7979 316 0.6 129
Show 11323+2527 TDS7912 AB 131 0.2 134
Show 11323+2527 GII 83 AC 172 1.1 134
Show 11460+2843 SKF 178 201 2.0 136
Show 11294+2633 TDS7887 327 0.4 139
Show 11484+2532 RAO 267 72 3.1 146
Show 11504+2626 LDS 927 294 14.0 147
Show 11436+2442 LDS4138 233 3.7 147
Show 11358+2437 TOK 895 205 0.3 150
Show 11368+2923 HJ 2579 AB 352 13.9 151
Show 11368+2923 FMR 15 AC 209 194.6 151
Show 11286+2726 KPP3240 219 1.7 151
Show 11334+2912 HJ 2575 AC 314 13.7 159
Show 11506+2807 UC 2217 47 8.0 163

 
 
WDS 11396+2657 : COMPONENTS
 
 
  A
B pa=87.1°
sep=4.49"
 
 
11396+2657 A
 
 
Componente originario normalizzato AB Name HD 101320 Coord arcsec 2000 113937.84+265723.7 Mag 8.81
Spectral class A3V (white) PmRA -10.00 PmDE 0.0 SAO 81926
HIP 56878 Tycho2 1984-02612-1 HD 101320 GC 16002
ADS 8256 BD BD+27 2044
Tycho2
Tycho2 1984-02612-1 Pflag RAmdeg 174.90767381 DEmdeg 26.95658768
PmRA -8.0 PmDE -0.6 E RAmdeg 14 E DEmdeg 17
E pmRA 2.0 E pmDE 1.9 EpRAm 1991.36 EpDEm 1990.91
Num 4 Q RAmdeg 1.6 Q DEmdeg 1.1 Q pmRA 1.6
Q pmDE 1.1 BTmag 10.242 E BTmag 0.045 VTmag 8.806
E VTmag 0.020 Prox 53 TYC T HIP 56878
CCDM A RAdeg 174.90769417 DEdeg 26.95658889 EpRA 1990 1.92
EpDE 1990 1.84 E RAdeg 13.8 E DEdeg 17.3 Posflg D
Corr -0.1
SAO
SAO 81926 DelFlag RA1950 PmRA1950 -0.0005
DE1950 PmDE1950 -0.006 Vmag 8.2 SpType A2
Double code Source 70 CatNum 16002 DM BD+27 2044
DMcomp BDsup HD 101320 M HD 0
GC 16002 RA1950rad 3.04129343 DE1950rad 0.4753184 PmRA2000 -0.0005
PmDE2000 -0.002
Hipparcos
Catalog H HIP 56878 Proxy H RAhms 11 39 37.85
DEdms +26 57 23.7 Vmag 8.23 VarFlag R Vmag G
RAdeg 174.908 DEdeg 26.9566 AstroRef A Plx 2.37
CCDM 11396+2657 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 87 Rho 5.246 HD 101320 BD BD+27 2044
CD CP Dm number +27 2044 VIred 0.12
SpType A3V + G0 R SpType Coord arcsec 2000 113937.85+265723.7
Hipparcos 2
HIP 56878 Sn 15 So 3 Nc 2
RArad 3.0527150257 DErad 0.4704813134 Plx 2.32 PmRA 4.62
PmDE -8.03 E RArad 2.17 E DErad 2.2 E Plx 2.17
E pmRA 2.26 E pmDE 2.13 Hpmag 8.3635 E Hpmag 0.0044
SHp 0.023 VA 0 BV 0.659 E BV 0.005
VI 0.72
CCDM
Ccdm 11396+2657 RComp Comp A Note1
Note2 Discov num DRAs 1.72 DDEs 23.8
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.6 Sp A2 PmNote *
PmRA -8 PmDE -5 Dm number +27 2044 Cat1 BD
Name2 81926 Cat2 SAO HD 101320 M HD
ADS BDS A 8256 M ADS BDS N IDS IDS 11344N2731A
HIC 56878
 
 
11396+2657 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 113938.18+265723.9 Mag 9.33 PmRA 0.00
PmDE -3.0 Tycho2 1984-02484-1 Calc delta mag 0.52 Calc coord yes
Tycho2
Tycho2 1984-02484-1 Pflag RAmdeg 174.90933825 DEmdeg 26.95669017
PmRA 3.7 PmDE -0.5 E RAmdeg 17 E DEmdeg 15
E pmRA 2.2 E pmDE 2.0 EpRAm 1991.14 EpDEm 1991.22
Num 4 Q RAmdeg 0.3 Q DEmdeg 1.0 Q pmRA 0.3
Q pmDE 1.0 BTmag 9.519 E BTmag 0.028 VTmag 9.330
E VTmag 0.029 Prox 53 TYC T HIP 56878
CCDM B RAdeg 174.90932889 DEdeg 26.95669139 EpRA 1990 1.84
EpDE 1990 1.88 E RAdeg 17.3 E DEdeg 15.1 Posflg
Corr 0.1
CCDM
Ccdm 11396+2657 RComp Comp B Note1
Note2 Discov num STF1564 DRAs 2.11 DDEs 24.0
R dRAs 90 Year 1828 Theta 087 Rho 5.1
Obs 18 Vmag 9.4 Sp PmNote
PmRA -8 PmDE -5 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 8256 M ADS BDS N IDS IDS 11344N2731B
HIC 56878