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Current system
19030+5135
STF 2451
HD 234786


Nearby doubles
7' : 19025+5141
KPP4135

8' : 19025+5142
TDT1193

15' : 19028+5150
ES 2671

20' : 19020+5153
LDS4804

22' : 19011+5121
ES 789

23' : 19053+5129
UC 3792

33' : 19052+5201
ES 978

41' : 19002+5207
ES 651

41' : 19027+5055
ES 977AB

49' : 18583+5114
KPP 430

55' : 18586+5210
MLR 638

56' : 18571+5143
SHY 749

59' : 19077+5057
ES 979AB

62' : 19086+5208
MLR 639

62' : 19091+5115
KOI1503

62' : 18577+5100
RAO 402

67' : 19100+5124
ES 790

68' : 19101+5123
KOI2424

75' : 19106+5200
KPP1955

77' : 19104+5104
KOI2059

78' : 19101+5057
DEA 171

80' : 19114+5127
DEA 472

81' : 19027+5014
KOI 72

82' : 19057+5018
KOI1530

84' : 19050+5015
KOI 514

84' : 19067+5020
RAP 3



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.

19030+5135 STF 2451 (HD 234786)

 
 
19h 02m 58.14s +51° 35' 22.1" P.A. 84.00 sep 1.9 mag 9.29,9.47 Sp F8 dist. 136.05 pc (443.8 l.y.)
 
 
Coord 2000 19030+5135 Discov num STF2451 Comp Coord arcsec 2000 19 02 58.14 +51 35 22.1
Date first 1831 Date last 2019 Obs 68
Pa first 58 Pa last 84.3 P.A. Now (θ) 84.3°
Sep first 2.6 Sep last 1.946 Sep. Now (ρ) 1.946"
Mag pri 9.29 Mag sec 9.47 delta mag (ΔM) 0.18 Spectral class F8 (yellow-white)
Pri motion ra -011 Sec motion ra -011
Pri motion dec +032 Sec motion dec +032
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 234786 Constellation Draco SAO 31345 HIP 93530
Tycho2 3553-02027-1 Gaia DR2 2133826343492468608 HD 234786 GC 26228
BD BD+51 2488 Distance 136.05 Distance ly 443.8
 
 
WDS 19030+5135 STF 2451 (HD 234786) : 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
19030+5135 STF2451 2005 50 82 2.0 9.29 9.47 F8 D 190258.14+513522.1
19030+5135 STF2451 2006 51 82 2.0 9.29 9.47 F8 D 190258.14+513522.1
19030+5135 STF2451 2010 53 83 2.0 9.29 9.47 F8 D 190258.14+513522.1
19030+5135 STF2451 2011 56 81 2.0 9.29 9.47 F8 D 190258.14+513522.1
19030+5135 STF2451 2015 54 84 2.0 9.29 9.47 F8 190258.14+513522.1
19030+5135 STF2451 2019 66 84 1.9 9.29 9.47 F8 190258.14+513522.1

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

 
 
WDS 19030+5135 STF 2451 (HD 234786) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 19030+5135 STF 2451 (HD 234786) : MEASURES
 
 
No records found.

 
 
WDS 19030+5135 (HD 234786) : VIRTUAL EYEPIECE
 
 

19030+5135 STF2451A mag 9.29 Sp F8 19030+5135 STF2451B sep 1.2 P.A. 80.90 mag 9.47 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 19030+5135 (HD 234786) : ALADIN DSS IMAGE @ 19h 02m 58.14s +51° 35' 22.1"
 
 
 
 
WDS 19030+5135 STF 2451 (HD 234786) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

19030+5135 STF2451 distance=0' 19025+5141 KPP4135 distance=7' 19025+5142 TDT1193 distance=8' 19028+5150 ES 2671 distance=15' 19020+5153 LDS4804 distance=20' 19011+5121 ES 789 distance=22' 19053+5129 UC 3792 distance=23' 19052+5201 ES 978 distance=33' 19002+5207 ES 651 distance=41' 19027+5055 ES 977AB distance=41' 19021+5216 STF2450A,BC distance=42' 19021+5216 HU 757BC distance=42' 18583+5114 KPP 430 distance=49' 18586+5210 MLR 638 distance=55' 18571+5143 SHY 749 distance=56' 19077+5057 ES 979AB distance=59' 19077+5057 ES 979AC distance=59' 19077+5057 ABH 109AD distance=59' 19077+5057 ABH 109AE distance=59' 19077+5057 ABH 109AF distance=59' 19077+5057 ABH 109AG distance=59' 19086+5208 MLR 639 distance=62' 19091+5115 KOI1503 distance=62' 18577+5100 RAO 402 distance=62' 19100+5124 ES 790 distance=67' 19101+5123 KOI2424 distance=68' 19106+5200 KPP1955 distance=75' 19104+5104 KOI2059 distance=77' 19101+5057 DEA 171 distance=78' 19114+5127 DEA 472 distance=80' 19027+5014 KOI 72 distance=81' 19057+5018 KOI1530 distance=82' 19050+5015 KOI 514 distance=84' 19067+5020 RAP 3 distance=84' 19098+5040 KPP 435 distance=85' 19117+5202 TDT1290 distance=85' 19122+5121 KOI2463 distance=88' 19112+5221 UC 3836 distance=89' 19024+5007 KOI1833AB distance=89' 19024+5007 KOI1833AC distance=89' 18599+5008 DEA 356 distance=92' 19114+5224 LDS4806 distance=92' 19036+5307 HDS2701 distance=92' 19126+5117 KOI2331AB distance=92' 19109+5041 DEA 172 distance=93' 19004+5006 KOI3263 distance=93' 18558+5240 ES 650AB distance=93' 18558+5240 ES 650AC distance=93' 19120+5057 KOI 153AB distance=94' 19120+5057 KOI 153AC distance=94' 19120+5057 KOI 153AD distance=94' 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 19030+5135 STF2451 84 1.9
Show 19025+5141 KPP4135 36 1.6 7
Show 19025+5142 TDT1193 91 1.2 8
Show 19028+5150 ES 2671 289 7.9 15
Show 19020+5153 LDS4804 227 42.2 20
Show 19011+5121 ES 789 264 4.5 22
Show 19053+5129 UC 3792 108 53.1 23
Show 19052+5201 ES 978 199 5.1 33
Show 19002+5207 ES 651 138 5.1 41
Show 19027+5055 ES 977 AB 177 15.7 41
Show 19021+5216 STF2450 A,BC 300 5.2 42
Show 19021+5216 HU 757 BC 168 0.2 42
Show 18583+5114 KPP 430 144 4.7 49
Show 18586+5210 MLR 638 132 0.3 55
Show 18571+5143 SHY 749 208 999.9 56
Show 19077+5057 ES 979 AB 194 8.3 59
Show 19077+5057 ES 979 AC 47 19.2 59
Show 19077+5057 ABH 109 AD 332 48.9 59
Show 19077+5057 ABH 109 AE 86 57.5 59
Show 19077+5057 ABH 109 AF 248 70.2 59
Show 19077+5057 ABH 109 AG 185 67.9 59
Show 19086+5208 MLR 639 37 0.4 62
Show 19091+5115 KOI1503 107 0.8 62
Show 18577+5100 RAO 402 62 1.6 62
Show 19100+5124 ES 790 116 4.9 67
Show 19101+5123 KOI2424 278 3.9 68
Show 19106+5200 KPP1955 320 15.4 75
Show 19104+5104 KOI2059 289 0.4 77
Show 19101+5057 DEA 171 78 8.6 78
Show 19114+5127 DEA 472 228 41.9 80
Show 19027+5014 KOI 72 296 2.0 81
Show 19057+5018 KOI1530 105 2.7 82
Show 19050+5015 KOI 514 42 10.5 84
Show 19067+5020 RAP 3 314 0.1 84
Show 19098+5040 KPP 435 225 3.9 85
Show 19117+5202 TDT1290 196 2.6 85
Show 19122+5121 KOI2463 128 0.6 88
Show 19112+5221 UC 3836 170 43.9 89
Show 19024+5007 KOI1833 AB 76 0.0 89
Show 19024+5007 KOI1833 AC 278 4.5 89
Show 18599+5008 DEA 356 13 16.2 92
Show 19114+5224 LDS4806 69 3.4 92
Show 19036+5307 HDS2701 305 0.1 92
Show 19126+5117 KOI2331 AB 321 3.9 92
Show 19109+5041 DEA 172 49 8.4 93
Show 19004+5006 KOI3263 275 0.8 93
Show 18558+5240 ES 650 AB 329 4.6 93
Show 18558+5240 ES 650 AC 197 26.7 93
Show 19120+5057 KOI 153 AB 276 5.2 94
Show 19120+5057 KOI 153 AC 298 6.2 94
Show 19120+5057 KOI 153 AD 353 8.0 94

 
 
WDS 19030+5135 : COMPONENTS
 
 
  A
B pa=80.9°
sep=1.22"
 
 
19030+5135 A
 
 
Componente originario normalizzato AB Name HD 234786 Coord arcsec 2000 190258.14+513522.1 Mag 9.29
Spectral class F8 (yellow-white) PmRA -11.00 PmDE 32.0 SAO 31345
HIP 93530 Tycho2 3553-02027-1 HD 234786 GC 26228
BD BD+51 2488
Tycho2
Tycho2 3553-02027-1 Pflag P RAmdeg 285.74226883 DEmdeg 51.58947891
PmRA -11.0 PmDE 31.9 E RAmdeg 15 E DEmdeg 14
E pmRA 2.7 E pmDE 2.4 EpRAm 1991.20 EpDEm 1991.24
Num 4 Q RAmdeg 0.6 Q DEmdeg 0.5 Q pmRA 0.6
Q pmDE 0.5 BTmag 9.920 E BTmag 0.027 VTmag 9.291
E VTmag 0.021 Prox 21 TYC T HIP 93530
CCDM A RAdeg 285.74190444 DEdeg 51.58936028 EpRA 1990 1.56
EpDE 1990 1.63 E RAdeg 13.8 E DEdeg 13.3 Posflg D
Corr 0.0
SAO
SAO 31345 DelFlag RA1950 PmRA1950 -0.001
DE1950 PmDE1950 0.03 Vmag 8.1 SpType F8
Double code Source 70 CatNum 26228 DM BD+51 2488
DMcomp BDsup HD 234786 M HD 0
GC 26228 RA1950rad 4.98185715 DE1950rad 0.89909108 PmRA2000 -0.0005
PmDE2000 0.03
Hipparcos
Catalog H HIP 93530 Proxy H RAhms 19 02 58.06
DEdms +51 35 21.7 Vmag 8.59 VarFlag R Vmag H
RAdeg 285.742 DEdeg 51.5894 AstroRef A Plx 9.84
CCDM 19030+5135 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 80 Rho 2.027 HD 234786 BD BD+51 2488
CD CP Dm number +51 2488 VIred 0.76
SpType F8 R SpType Coord arcsec 2000 190258.06+513521.7
Hipparcos 2
HIP 93530 Sn 15 So 3 Nc 2
RArad 4.9871371456 DErad 0.9004040308 Plx 7.35 PmRA -6.04
PmDE 35.41 E RArad 1.4 E DErad 1.3 E Plx 1.46
E pmRA 1.67 E pmDE 1.61 Hpmag 8.7028 E Hpmag 0.0019
SHp 0.018 VA 0 BV 0.522 E BV 0.029
VI 0.59
CCDM
Ccdm 19030+5135 RComp Comp A Note1
Note2 Discov num DRAs -1.88 DDEs 22.0
R dRAs 12 Year Theta Rho
Obs 2 Vmag 8.9 Sp F8 PmNote
PmRA 78 PmDE 38 Dm number +51 2488 Cat1 BD
Name2 +51 1285 Cat2 AGK2/3 HD 234786 M HD
ADS BDS A11997 M ADS BDS N IDS IDS 19006N5126A
HIC 93530
 
 
19030+5135 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 190258.27+513522.3 Mag 9.47 PmRA -11.00
PmDE 32.0 HIP 93530 Tycho2 3553-02027-2 Calc delta mag 0.18
Calc coord yes
Tycho2
Tycho2 3553-02027-2 Pflag P RAmdeg 285.74226883 DEmdeg 51.58947891
PmRA -11.0 PmDE 31.9 E RAmdeg 15 E DEmdeg 14
E pmRA 2.7 E pmDE 2.4 EpRAm 1991.20 EpDEm 1991.24
Num 4 Q RAmdeg 0.6 Q DEmdeg 0.5 Q pmRA 0.6
Q pmDE 0.5 BTmag 10.042 E BTmag 0.028 VTmag 9.469
E VTmag 0.022 Prox 21 TYC T HIP 93530
CCDM B RAdeg 285.74281056 DEdeg 51.58945972 EpRA 1990 1.56
EpDE 1990 1.63 E RAdeg 15.0 E DEdeg 14.4 Posflg D
Corr 0.0
Hipparcos
Catalog H HIP 93530 Proxy H RAhms 19 02 58.06
DEdms +51 35 21.7 Vmag 8.59 VarFlag R Vmag H
RAdeg 285.742 DEdeg 51.5894 AstroRef A Plx 9.84
CCDM 19030+5135 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 80 Rho 2.027 HD 234786 BD BD+51 2488
CD CP Dm number +51 2488 VIred 0.76
SpType F8 R SpType Coord arcsec 2000 190258.06+513521.7
Hipparcos 2
HIP 93530 Sn 15 So 3 Nc 2
RArad 4.9871371456 DErad 0.9004040308 Plx 7.35 PmRA -6.04
PmDE 35.41 E RArad 1.4 E DErad 1.3 E Plx 1.46
E pmRA 1.67 E pmDE 1.61 Hpmag 8.7028 E Hpmag 0.0019
SHp 0.018 VA 0 BV 0.522 E BV 0.029
VI 0.59
CCDM
Ccdm 19030+5135 RComp Comp B Note1
Note2 Discov num STF2451 DRAs DDEs
R dRAs Year 1949 Theta 074 Rho 2.1
Obs 18 Vmag 9.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11997 M ADS BDS N IDS IDS 19006N5126B
HIC 93530