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Doubles in session


Current system
03187+4702
STF 371
HD 20400


Nearby doubles
20' : 03185+4721
MET 1AB

30' : 03207+4641
BU 1294

34' : 03206+4634
TDS2526

48' : 03228+4640
COU2021

48' : 03221+4734
PAT 24

51' : 03213+4743
ES 464

53' : 03136+4655
BVD 188

55' : 03238+4718
KPP1512

61' : 03190+4602
JCT 1

64' : 03152+4754
TDS 108

65' : 03193+4559
STF 372AB

66' : 03160+4802
PAT 19

70' : 03190+4811
MET 25AB

70' : 03173+4553
CBL 19

71' : 03245+4626
LDS9153

72' : 03256+4701
AG 306

72' : 03201+4811
COU2019

73' : 03213+4809
COU2020

77' : 03124+4744
BLL 11AB

81' : 03250+4615
TDS2542

81' : 03250+4614
TDS 112

82' : 03232+4554
LDS9152

89' : 03211+4826
PAT 22

91' : 03103+4732
COU2018

101' : 03172+4522
PRV 2

102' : 03143+4835
ES 2597



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.

03187+4702 STF 371 (HD 20400)

 
 
03h 18m 40.61s +47° 01' 31.6" P.A. 89.00 sep 3.2 mag 8.50,10.55 Sp F0 dist. 179.21 pc (584.58 l.y.)
 
 
Coord 2000 03187+4702 Discov num STF 371 Comp Coord arcsec 2000 03 18 40.61 +47 01 31.6
Date first 1831 Date last 2016 Obs 29
Pa first 75 Pa last 88.9 P.A. Now (θ) 88.9°
Sep first 3.4 Sep last 3.21 Sep. Now (ρ) 3.21"
Mag pri 8.50 Mag sec 10.55 delta mag (ΔM) 2.05 Spectral class F0 (yellow-white)
Pri motion ra +021 Sec motion ra +033
Pri motion dec -036 Sec motion dec -037
Notes
rPM=0.243 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 20400 Constellation Perseus SAO 38712 HIP 15410
Tycho2 3315-02247-1 Gaia DR2 435187084531940352 HD 20400 GC 3937
BD BD+46 727 Distance 179.21 Distance ly 584.58
 
 
WDS 03187+4702 STF 371 (HD 20400) : 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
03187+4702 STF 371 1998 26 87 3.1 8.50 10.55 F0 D 031840.61+470131.6
03187+4702 STF 371 2009 27 90 3.5 8.50 10.55 F0 D 031840.61+470131.6
03187+4702 STF 371 2011 28 88 3.3 8.50 10.55 F0 D 031840.61+470131.6
03187+4702 STF 371 2016 29 89 3.2 8.50 10.55 F0 031840.61+470131.6

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

 
 
WDS 03187+4702 STF 371 (HD 20400) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 03187+4702 STF 371 (HD 20400) : MEASURES
 
 
No records found.

 
 
WDS 03187+4702 (HD 20400) : VIRTUAL EYEPIECE
 
 

03187+4702 STF 371A mag 8.5 Sp F0 03187+4702 STF 371B sep 2.2 P.A. 88.40 mag 10.55 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 03187+4702 (HD 20400) : ALADIN DSS IMAGE @ 03h 18m 40.61s +47° 01' 31.6"
 
 
 
 
WDS 03187+4702 STF 371 (HD 20400) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

03187+4702 STF 371 distance=1' 03185+4721 MET 1AB distance=20' 03185+4721 MET 23AC distance=20' 03185+4721 MET 23AD distance=20' 03207+4641 BU 1294 distance=30' 03206+4634 TDS2526 distance=34' 03228+4640 COU2021 distance=48' 03221+4734 PAT 24 distance=48' 03213+4743 ES 464 distance=51' 03136+4655 BVD 188 distance=53' 03238+4718 KPP1512 distance=55' 03190+4602 JCT 1 distance=61' 03152+4754 TDS 108 distance=64' 03193+4559 ABH 20CD distance=65' 03193+4559 STF 372AB distance=65' 03193+4559 STF 372AC distance=65' 03193+4559 ABH 20AE distance=65' 03193+4559 ABH 20AF distance=65' 03193+4559 ABH 20AG distance=65' 03193+4559 ABH 20AH distance=65' 03193+4559 ABH 20AD distance=65' 03160+4802 PAT 19 distance=66' 03190+4811 MET 25AB distance=70' 03190+4811 MET 25AC distance=70' 03190+4811 MET 25AD distance=70' 03173+4553 CBL 19 distance=70' 03245+4626 LDS9153 distance=71' 03256+4701 AG 306 distance=72' 03201+4811 COU2019 distance=72' 03213+4809 COU2020 distance=73' 03124+4744 BLL 11AB distance=77' 03124+4744 BUP 40AC distance=77' 03124+4744 BUP 40AD distance=77' 03124+4744 BUP 40DE distance=80' 03250+4615 TDS2542 distance=81' 03250+4614 TDS 112 distance=81' 03232+4554 LDS9152 distance=82' 03211+4826 PAT 22 distance=89' 03103+4732 COU2018 distance=91' 03172+4522 PRV 2 distance=101' 03143+4835 ES 2597 distance=102' 03254+4545 ES 1218 distance=102' 03215+4523 HO 319AB distance=103' 03215+4523 HO 319AC distance=103' 03215+4523 MRI 3AD distance=103' 03193+4519 COU1680 distance=103' 03279+4614 COU1686 distance=106' 03238+4836 PAT 26 distance=108' 03294+4656 A 982EF distance=110' 03176+4850 TDS2516Aa,Ab distance=110' 03176+4850 MET 22AB distance=110' 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 03187+4702 STF 371 89 3.2 1
Show 03185+4721 MET 1 AB 194 2.1 20
Show 03185+4721 MET 23 AC 56 8.5 20
Show 03185+4721 MET 23 AD 266 11.6 20
Show 03207+4641 BU 1294 240 7.5 30
Show 03206+4634 TDS2526 306 0.9 34
Show 03228+4640 COU2021 267 0.3 48
Show 03221+4734 PAT 24 72 0.2 48
Show 03213+4743 ES 464 67 7.0 51
Show 03136+4655 BVD 188 100 16.0 53
Show 03238+4718 KPP1512 38 11.4 55
Show 03190+4602 JCT 1 280 18.5 61
Show 03152+4754 TDS 108 136 0.9 64
Show 03193+4559 ABH 20 CD 249 10.3 65
Show 03193+4559 STF 372 AB 292 7.7 65
Show 03193+4559 STF 372 AC 76 53.5 65
Show 03193+4559 ABH 20 AE 154 61.5 65
Show 03193+4559 ABH 20 AF 351 73.8 65
Show 03193+4559 ABH 20 AG 261 62.4 65
Show 03193+4559 ABH 20 AH 240 7.7 65
Show 03193+4559 ABH 20 AD 78 43.2 65
Show 03160+4802 PAT 19 335 0.2 66
Show 03190+4811 MET 25 AB 84 4.1 70
Show 03190+4811 MET 25 AC 126 10.7 70
Show 03190+4811 MET 25 AD 64 12.5 70
Show 03173+4553 CBL 19 232 48.2 70
Show 03245+4626 LDS9153 18 8.5 71
Show 03256+4701 AG 306 317 15.0 72
Show 03201+4811 COU2019 258 0.3 72
Show 03213+4809 COU2020 233 0.3 73
Show 03124+4744 BLL 11 AB 339 15.2 77
Show 03124+4744 BUP 40 AC 197 20.0 77
Show 03124+4744 BUP 40 AD 297 211.2 77
Show 03124+4744 BUP 40 DE 97 18.2 80
Show 03250+4615 TDS2542 129 0.4 81
Show 03250+4614 TDS 112 39 0.9 81
Show 03232+4554 LDS9152 36 10.8 82
Show 03211+4826 PAT 22 298 0.3 89
Show 03103+4732 COU2018 77 1.1 91
Show 03172+4522 PRV 2 207 0.0 101
Show 03143+4835 ES 2597 197 10.6 102
Show 03254+4545 ES 1218 266 2.2 102
Show 03215+4523 HO 319 AB 47 11.6 103
Show 03215+4523 HO 319 AC 305 12.7 103
Show 03215+4523 MRI 3 AD 267 155.6 103
Show 03193+4519 COU1680 132 1.3 103
Show 03279+4614 COU1686 263 0.5 106
Show 03238+4836 PAT 26 17 0.1 108
Show 03294+4656 A 982 EF 308 2.6 110
Show 03176+4850 TDS2516 Aa,Ab 220 0.9 110
Show 03176+4850 MET 22 AB 38 6.9 110

 
 
WDS 03187+4702 : COMPONENTS
 
 
  A
B pa=88.4°
sep=2.19"
 
 
03187+4702 A
 
 
Componente originario normalizzato AB Name HD 20400 Coord arcsec 2000 031840.61+470131.6 Mag 8.5
Spectral class F0 (yellow-white) PmRA 21.00 PmDE -36.0 SAO 38712
HIP 15410 Tycho2 3315-02247-1 HD 20400 GC 3937
BD BD+46 727
Tycho2
Tycho2 3315-02247-1 Pflag RAmdeg 49.66919709 DEmdeg 47.02544913
PmRA 21.0 PmDE -35.8 E RAmdeg 8 E DEmdeg 8
E pmRA 1.8 E pmDE 1.9 EpRAm 1991.27 EpDEm 1991.28
Num 3 Q RAmdeg 9.9 Q DEmdeg 0.4 Q pmRA 9.9
Q pmDE 0.4 BTmag 8.871 E BTmag 0.018 VTmag 8.495
E VTmag 0.015 Prox 35 TYC T HIP 15410
CCDM A RAdeg 49.66911889 DEdeg 47.02553222 EpRA 1990 1.65
EpDE 1990 1.64 E RAdeg 7.6 E DEdeg 7.8 Posflg
Corr 0.0
SAO
SAO 38712 DelFlag RA1950 PmRA1950 0.0043
DE1950 PmDE1950 -0.029 Vmag 8.4 SpType F0
Double code Source 70 CatNum 3937 DM BD+46 727
DMcomp BDsup HD 20400 M HD 0
GC 3937 RA1950rad 0.85176569 DE1950rad 0.81758742 PmRA2000 0.0043
PmDE2000 -0.033
Hipparcos
Catalog H HIP 15410 Proxy H RAhms 03 18 40.59
DEdms +47 01 31.9 Vmag 8.28 VarFlag R Vmag G
RAdeg 49.6691 DEdeg 47.0255 AstroRef A Plx 5.72
CCDM 03187+4702 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 87 Rho 3.483 HD 20400 BD BD+46 727
CD CP Dm number +46 727 VIred 0.47
SpType F0 R SpType Coord arcsec 2000 031840.59+470131.9
Hipparcos 2
HIP 15410 Sn 15 So 3 Nc 2
RArad 0.8668895976 DErad 0.8207504233 Plx 5.58 PmRA 32.12
PmDE -36.99 E RArad 1.02 E DErad 0.75 E Plx 1.2
E pmRA 1.25 E pmDE 1.21 Hpmag 8.3576 E Hpmag 0.0022
SHp 0.02 VA 0 BV 0.407 E BV 0.015
VI 0.47
CCDM
Ccdm 03187+4702 RComp Comp A Note1
Note2 Discov num DRAs -1.31 DDEs -27.9
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.6 Sp F0 PmNote *
PmRA 42 PmDE -30 Dm number +46 727 Cat1 BD
Name2 38712 Cat2 SAO HD 20400 M HD
ADS BDS A 2454 M ADS BDS N IDS IDS 03118N4640A
HIC 15410
 
 
03187+4702 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 031840.82+470131.7 Mag 10.55 PmRA 33.00
PmDE -37.0 Calc delta mag 2.05 Calc coord yes
CCDM
Ccdm 03187+4702 RComp Comp B Note1
Note2 Discov num STF 371 DRAs DDEs
R dRAs Year 1831 Theta 083 Rho 3.5
Obs 10 Vmag 10.6 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 2454 M ADS BDS N IDS IDS 03118N4640B
HIC 15410