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Current system
12131+6704
STF 1614
HD 106221


Nearby doubles
24' : 12109+6724
HJ 3336

27' : 12140+6638
TDS8278

31' : 12182+6711
HDS1732

46' : 12069+6637
LDS2629

48' : 12201+6729
SKF2325

48' : 12170+6623
LDS2638

57' : 12191+6621
MLR 150

58' : 12067+6621
CBL 374

59' : 12039+6728
LDS2626

60' : 12204+6623
HDS1737

62' : 12236+6711
HDS1745

63' : 12233+6646
CBL 381

66' : 12242+6655
LDS2641

68' : 12098+6809
LDS1281

68' : 12046+6620
MET 59AB

69' : 12014+6701
KPP 767

73' : 12027+6628
CVR1402

74' : 12203+6605
KPP3866

75' : 12157+6818
LDS2637

80' : 11596+6700
TDS 652

87' : 12228+6811
A 1089

88' : 12160+6831
TDS8291

90' : 11579+6705
HDS1683

93' : 12120+6836
STF1611

93' : 12027+6815
LDS2624

94' : 12170+6534
GRV1074



Selections
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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.

12131+6704 STF 1614 (HD 106221)

 
 
12h 13m 07.94s +67° 04' 24.4" P.A. 191.00 sep 18.6 mag 8.65,11.29 Sp F8 dist. 106.38 pc (347.01 l.y.)
 
 
Coord 2000 12131+6704 Discov num STF1614 Comp Coord arcsec 2000 12 13 07.94 +67 04 24.4
Date first 1831 Date last 2017 Obs 19
Pa first 192 Pa last 190.7 P.A. Now (θ) 190.7°
Sep first 18.7 Sep last 18.55 Sep. Now (ρ) 18.55"
Mag pri 8.65 Mag sec 11.29 delta mag (ΔM) 2.64 Spectral class F8 (yellow-white)
Pri motion ra -009 Sec motion ra -011
Pri motion dec -002 Sec motion dec -001
Notes
rPM=0.202 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 106221 Constellation Draco SAO 15740 HIP 59585
Tycho2 4161-00301-1 Gaia DR2 1681245573423096448 HD 106221 GC 16690
ADS 8462 BD BD+67 735 Distance 106.38 Distance ly 347.01
 
 
WDS 12131+6704 STF 1614 (HD 106221) : 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
12131+6704 STF1614 1999 10 191 18.7 8.65 11.29 F8 D 121307.94+670424.4
12131+6704 STF1614 2010 11 191 18.8 8.65 11.29 F8 D 121307.94+670424.4
12131+6704 STF1614 2015 14 191 18.7 8.65 11.29 F8 121307.94+670424.4
12131+6704 STF1614 2017 19 191 18.6 8.65 11.29 F8 121307.94+670424.4

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

 
 
WDS 12131+6704 STF 1614 (HD 106221) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 12131+6704 STF 1614 (HD 106221) : MEASURES
 
 
No records found.

 
 
WDS 12131+6704 (HD 106221) : VIRTUAL EYEPIECE
 
 

12131+6704 STF1614A mag 8.65 Sp F8 12131+6704 STF1614B sep 18.3 P.A. 184.20 mag 11.29 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 12131+6704 (HD 106221) : ALADIN DSS IMAGE @ 12h 13m 07.94s +67° 04' 24.4"
 
 
 
 
WDS 12131+6704 STF 1614 (HD 106221) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

12131+6704 STF1614 distance=0' 12109+6724 HJ 3336 distance=24' 12140+6638 TDS8278 distance=27' 12182+6711 HDS1732 distance=31' 12069+6637 LDS2629 distance=46' 12201+6729 SKF2325 distance=48' 12170+6623 LDS2638 distance=48' 12191+6621 MLR 150 distance=57' 12067+6621 CBL 374 distance=58' 12039+6728 LDS2626 distance=59' 12204+6623 HDS1737 distance=60' 12236+6711 HDS1745 distance=62' 12233+6646 CBL 381 distance=63' 12242+6655 LDS2641 distance=66' 12098+6809 LDS1281 distance=68' 12046+6620 MET 59AB distance=68' 12046+6620 MET 59AC distance=68' 12014+6701 KPP 767 distance=69' 12027+6628 CVR1402 distance=73' 12203+6605 KPP3866 distance=74' 12157+6818 LDS2637 distance=75' 11596+6700 TDS 652 distance=80' 12228+6811 A 1089 distance=87' 12160+6831 TDS8291 distance=88' 11579+6705 HDS1683 distance=90' 12120+6836 STF1611 distance=93' 12027+6815 LDS2624 distance=93' 12170+6534 GRV1074 distance=94' 12196+6538 LDS2639 distance=96' 12277+6612 SLN 25 distance=101' 12297+6743 LDS2645 distance=103' 12287+6618 TDS8403 distance=104' 12060+6842 STF3123AB distance=106' 12060+6842 STF3123AB,C distance=106' 12313+6700 LDS2649 distance=107' 12180+6848 STT 246 distance=107' 12056+6848 STF1599Ea,Eb distance=110' 11560+6619 GRV1066 distance=111' 12056+6848 STF1599AB distance=112' 12056+6848 STF1599AC distance=112' 12056+6848 STF1599AD distance=112' 12056+6848 STF1599AE distance=112' 12056+6848 WAL 60AF distance=112' 12307+6756 LDS2647 distance=115' 11598+6540 WFC 120 distance=117' 12169+6902 KPP3864AB distance=120' 12169+6902 KPP3864BC distance=120' 11589+6832 TDS8147 distance=120' 12115+6501 NSN 625 distance=124' 12330+6752 TDS8430 distance=124' 12314+6810 LDS2650 distance=125' 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 12131+6704 STF1614 191 18.6
Show 12109+6724 HJ 3336 293 9.1 24
Show 12140+6638 TDS8278 139 2.8 27
Show 12182+6711 HDS1732 7 0.2 31
Show 12069+6637 LDS2629 336 38.6 46
Show 12201+6729 SKF2325 15 13.1 48
Show 12170+6623 LDS2638 256 69.8 48
Show 12191+6621 MLR 150 229 0.7 57
Show 12067+6621 CBL 374 56 48.4 58
Show 12039+6728 LDS2626 76 42.5 59
Show 12204+6623 HDS1737 149 0.1 60
Show 12236+6711 HDS1745 33 0.6 62
Show 12233+6646 CBL 381 313 33.4 63
Show 12242+6655 LDS2641 207 11.1 66
Show 12098+6809 LDS1281 229 2.4 68
Show 12046+6620 MET 59 AB 260 3.1 68
Show 12046+6620 MET 59 AC 260 12.0 68
Show 12014+6701 KPP 767 5 6.6 69
Show 12027+6628 CVR1402 238 3.1 73
Show 12203+6605 KPP3866 250 18.9 74
Show 12157+6818 LDS2637 42 123.7 75
Show 11596+6700 TDS 652 287 1.1 80
Show 12228+6811 A 1089 288 0.9 87
Show 12160+6831 TDS8291 65 0.5 88
Show 11579+6705 HDS1683 346 0.4 90
Show 12120+6836 STF1611 4 1.9 93
Show 12027+6815 LDS2624 304 8.1 93
Show 12170+6534 GRV1074 296 16.4 94
Show 12196+6538 LDS2639 312 118.3 96
Show 12277+6612 SLN 25 90 11.4 101
Show 12297+6743 LDS2645 174 3.6 103
Show 12287+6618 TDS8403 17 0.6 104
Show 12060+6842 STF3123 AB 190 0.3 106
Show 12060+6842 STF3123 AB,C 302 3.0 106
Show 12313+6700 LDS2649 261 120.6 107
Show 12180+6848 STT 246 -1 -1.0 107
Show 12056+6848 STF1599 Ea,Eb 69 0.3 110
Show 11560+6619 GRV1066 134 22.4 111
Show 12056+6848 STF1599 AB 166 10.1 112
Show 12056+6848 STF1599 AC 332 108.4 112
Show 12056+6848 STF1599 AD 86 125.6 112
Show 12056+6848 STF1599 AE 182 125.3 112
Show 12056+6848 WAL 60 AF 109 142.5 112
Show 12307+6756 LDS2647 306 1.9 115
Show 11598+6540 WFC 120 283 6.7 117
Show 12169+6902 KPP3864 AB 304 12.5 120
Show 12169+6902 KPP3864 BC 142 1.0 120
Show 11589+6832 TDS8147 70 2.5 120
Show 12115+6501 NSN 625 235 2.0 124
Show 12330+6752 TDS8430 159 1.2 124
Show 12314+6810 LDS2650 17 3.9 125

 
 
WDS 12131+6704 : COMPONENTS
 
 
  A
B pa=184.2°
sep=18.28"
 
 
12131+6704 A
 
 
Componente originario normalizzato AB Name HD 106221 Coord arcsec 2000 121307.94+670424.4 Mag 8.65
Spectral class F8 (yellow-white) PmRA -9.00 PmDE -2.0 SAO 15740
HIP 59585 Tycho2 4161-00301-1 HD 106221 GC 16690
ADS 8462 BD BD+67 735
Tycho2
Tycho2 4161-00301-1 Pflag RAmdeg 183.28310378 DEmdeg 67.07343432
PmRA -8.7 PmDE 0.4 E RAmdeg 7 E DEmdeg 7
E pmRA 1.1 E pmDE 1.2 EpRAm 1990.94 EpDEm 1991.14
Num 11 Q RAmdeg 0.7 Q DEmdeg 1.4 Q pmRA 0.7
Q pmDE 1.4 BTmag 9.129 E BTmag 0.017 VTmag 8.651
E VTmag 0.013 Prox 188 TYC T HIP 59585
CCDM A RAdeg 183.28315583 DEdeg 67.07343361 EpRA 1990 1.74
EpDE 1990 1.74 E RAdeg 6.6 E DEdeg 6.5 Posflg
Corr 0.0
SAO
SAO 15740 DelFlag RA1950 PmRA1950 -0.002
DE1950 PmDE1950 -0.012 Vmag 8.6 SpType F8
Double code Source 70 CatNum 16690 DM BD+67 735
DMcomp BDsup HD 106221 M HD 0
GC 16690 RA1950rad 3.18831564 DE1950rad 1.17550202 PmRA2000 -0.0016
PmDE2000 -0.008
Hipparcos
Catalog H HIP 59585 Proxy RAhms 12 13 07.96
DEdms +67 04 24.3 Vmag 8.61 VarFlag R Vmag H
RAdeg 183.283 DEdeg 67.0734 AstroRef A Plx 4
CCDM 12131+6704 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 191 Rho 18.677 HD 106221 BD BD+67 735
CD CP Dm number +67 735 VIred 0.45
SpType F8 R SpType Coord arcsec 2000 121307.96+670424.3
Hipparcos 2
HIP 59585 Sn 15 So 3 Nc 2
RArad 3.198894515 DErad 1.1706522141 Plx 9.4 PmRA -13.63
PmDE -0.14 E RArad 1.55 E DErad 1.77 E Plx 2.08
E pmRA 1.55 E pmDE 1.96 Hpmag 8.7098 E Hpmag 0.0144
SHp 0.032 VA 0 BV 0.454 E BV 0.016
VI 0.52
CCDM
Ccdm 12131+6704 RComp Comp A Note1
Note2 Discov num DRAs 1.97 DDEs 23.8
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.7 Sp F8 PmNote *
PmRA -8 PmDE -8 Dm number +67 735 Cat1 BD
Name2 +67 539 Cat2 AGK2/3 HD 106221 M HD
ADS BDS A 8462 M ADS BDS N IDS IDS 12083N6738A
HIC 59585
 
 
12131+6704 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 121307.71+670406.2 Mag 11.29 PmRA -11.00
PmDE -1.0 Tycho2 4161-00264-1 Calc delta mag 2.64 Calc coord yes
Tycho2
Tycho2 4161-00264-1 Pflag RAmdeg 183.28061395 DEmdeg 67.06829375
PmRA -11.7 PmDE -0.3 E RAmdeg 48 E DEmdeg 53
E pmRA 1.9 E pmDE 2.1 EpRAm 1984.90 EpDEm 1984.44
Num 3 Q RAmdeg 0.2 Q DEmdeg 0.7 Q pmRA 0.3
Q pmDE 0.7 BTmag 11.855 E BTmag 0.086 VTmag 11.290
E VTmag 0.081 Prox 188 TYC T HIP 59585
CCDM B RAdeg 183.28068278 DEdeg 67.06829444 EpRA 1990 1.76
EpDE 1990 1.70 E RAdeg 49.7 E DEdeg 54.6 Posflg
Corr 0.0
CCDM
Ccdm 12131+6704 RComp Comp B Note1
Note2 Discov num STF1614 DRAs DDEs
R dRAs Year 1931 Theta 192 Rho 18.7
Obs 4 Vmag 11.4 Sp PmNote
PmRA -12 PmDE 7 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 8462 M ADS BDS N IDS IDS 12083N6738B
HIC