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Current system
19281+1739
STF 2529
HD 231509


Nearby doubles
21' : 19283+1719
TDT1477

21' : 19268+1749
TOI1196

23' : 19287+1718
STE 1

29' : 19276+1806
TDT1471

30' : 19296+1800
AG 231

35' : 19291+1707
TDT1491

39' : 19315+1804
L 29

42' : 19263+1706
TDT1459

43' : 19269+1818
HDS2764

43' : 19305+1724
WSS 3

50' : 19311+1817
OL 82

51' : 19284+1829
HU 340

52' : 19316+1747
STF2536

52' : 19302+1657
BPM1035

55' : 19300+1826
J 137

57' : 19280+1642
GWP2855

59' : 19241+1724
BPM1027

60' : 19319+1804
L 45

62' : 19322+1756
DAM 354

63' : 19256+1842
BOW 6

64' : 19268+1638
BPM1028

65' : 19265+1839
BOW 7

65' : 19324+1758
DAM 355

69' : 19244+1656
STFA 41AB

69' : 19313+1830
TDT1518

71' : 19329+1724
CLZ 76



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.

19281+1739 STF 2529 (HD 231509)

 
 
19h 28m 04.99s +17° 38' 54.0" P.A. 297.00 sep 6.7 mag 8.62,10.15 Sp K0
 
 
Coord 2000 19281+1739 Discov num STF2529 Comp Coord arcsec 2000 19 28 04.99 +17 38 54.0
Date first 1831 Date last 2018 Obs 28
Pa first 297 Pa last 296.8 P.A. Now (θ) 296.8°
Sep first 6.5 Sep last 6.735 Sep. Now (ρ) 6.735"
Mag pri 8.62 Mag sec 10.15 delta mag (ΔM) 1.53 Spectral class K0 (yellow-orange)
Pri motion ra +025 Sec motion ra +000
Pri motion dec -004 Sec motion dec +000
Notes
rPM=1
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 231509 Constellation Sagitta SAO 104869 Tycho2 1605-00551-1
Gaia DR2 4322987907464612736 HD 231509 GC 26886
 
 
WDS 19281+1739 STF 2529 (HD 231509) : 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
19281+1739 STF2529 1998 20 297 6.7 8.62 10.15 K0 D 192804.99+173854.0
19281+1739 STF2529 2001 21 296 6.7 8.62 10.15 K0 D 192804.99+173854.0
19281+1739 STF2529 2012 22 297 6.8 8.62 10.15 K0 D 192804.99+173854.0
19281+1739 STF2529 2015 24 297 6.7 8.62 10.15 K0 192804.99+173854.0
19281+1739 STF2529 2018 25 298 6.7 8.62 10.15 K0 192804.99+173854.0

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

 
 
WDS 19281+1739 STF 2529 (HD 231509) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 19281+1739 STF 2529 (HD 231509) : MEASURES
 
 
No records found.

 
 
WDS 19281+1739 (HD 231509) : VIRTUAL EYEPIECE
 
 

19281+1739 STF2529A mag 8.62 Sp K0 19281+1739 STF2529B sep 6.5 P.A. 297.90 mag 10.15 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 19281+1739 (HD 231509) : ALADIN DSS IMAGE @ 19h 28m 04.99s +17° 38' 54.0"
 
 
 
 
WDS 19281+1739 STF 2529 (HD 231509) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

19281+1739 STF2529 distance=0' 19283+1719 TDT1477 distance=21' 19268+1749 TOI1196 distance=21' 19287+1718 STE 1 distance=23' 19276+1806 TDT1471 distance=29' 19296+1800 AG 231 distance=30' 19291+1707 TDT1491 distance=35' 19315+1804 L 29 distance=39' 19263+1706 TDT1459 distance=42' 19269+1818 HDS2764 distance=43' 19305+1724 WSS 3 distance=43' 19311+1817 OL 82 distance=50' 19284+1829 HU 340 distance=51' 19316+1747 STF2536 distance=52' 19302+1657 BPM1035 distance=52' 19300+1826 J 137 distance=55' 19280+1642 GWP2855 distance=57' 19241+1724 BPM1027 distance=59' 19319+1804 L 45 distance=60' 19322+1756 DAM 354 distance=62' 19256+1842 BOW 6 distance=63' 19268+1638 BPM1028 distance=64' 19265+1839 BOW 7 distance=65' 19324+1758 DAM 355 distance=65' 19244+1656 HDS2753Aa,Ab distance=69' 19244+1656 STFA 41AB distance=69' 19313+1830 TDT1518 distance=69' 19329+1724 CLZ 76 distance=71' 19272+1626 HDS2765 distance=74' 19251+1839 HU 339 distance=74' 19321+1833 TDT1525 distance=79' 19332+1808 BPM1090 distance=80' 19281+1619 J 771AB distance=80' 19281+1619 J 771AC distance=80' 19284+1617 A 1650 distance=82' 19340+1742 TDT1545 distance=85' 19331+1655 BPM1089 distance=85' 19299+1618 LDS5878 distance=85' 19335+1814 HU 341 distance=86' 19293+1615 A 1652 distance=86' 19341+1736 BPM1115 distance=87' 19314+1841 HJ 890 distance=90' 19218+1737 BPM1024 distance=90' 19343+1720 BPM1117 distance=92' 19345+1759 YSC 241 distance=94' 19270+1606 A 1648 distance=95' 19214+1749 IPH 27 distance=97' 19346+1808 STT 375 distance=98' 19245+1613 TDT1434 distance=101' 19335+1842 KPP4153AD distance=101' 19211+1751 HU 338 distance=101' 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 19281+1739 STF2529 297 6.7
Show 19283+1719 TDT1477 33 1.6 21
Show 19268+1749 TOI1196 200 1.7 21
Show 19287+1718 STE 1 240 6.0 23
Show 19276+1806 TDT1471 105 0.6 29
Show 19296+1800 AG 231 239 4.5 30
Show 19291+1707 TDT1491 167 2.6 35
Show 19315+1804 L 29 346 13.4 39
Show 19263+1706 TDT1459 237 2.5 42
Show 19269+1818 HDS2764 115 0.3 43
Show 19305+1724 WSS 3 206 1.5 43
Show 19311+1817 OL 82 246 1.4 50
Show 19284+1829 HU 340 120 0.9 51
Show 19316+1747 STF2536 120 1.8 52
Show 19302+1657 BPM1035 310 85.0 52
Show 19300+1826 J 137 18 4.5 55
Show 19280+1642 GWP2855 16 14.6 57
Show 19241+1724 BPM1027 162 104.2 59
Show 19319+1804 L 45 146 4.9 60
Show 19322+1756 DAM 354 333 12.2 62
Show 19256+1842 BOW 6 309 7.2 63
Show 19268+1638 BPM1028 331 116.6 64
Show 19265+1839 BOW 7 251 9.6 65
Show 19324+1758 DAM 355 161 6.3 65
Show 19244+1656 HDS2753 Aa,Ab 139 0.4 69
Show 19244+1656 STFA 41 AB 78 342.3 69
Show 19313+1830 TDT1518 232 2.8 69
Show 19329+1724 CLZ 76 160 150.6 71
Show 19272+1626 HDS2765 177 0.4 74
Show 19251+1839 HU 339 246 0.9 74
Show 19321+1833 TDT1525 234 0.8 79
Show 19332+1808 BPM1090 294 25.4 80
Show 19281+1619 J 771 AB 92 3.6 80
Show 19281+1619 J 771 AC 273 9.2 80
Show 19284+1617 A 1650 46 0.2 82
Show 19340+1742 TDT1545 152 1.7 85
Show 19331+1655 BPM1089 88 35.8 85
Show 19299+1618 LDS5878 330 3.2 85
Show 19335+1814 HU 341 119 2.2 86
Show 19293+1615 A 1652 127 2.0 86
Show 19341+1736 BPM1115 115 111.7 87
Show 19314+1841 HJ 890 248 9.0 90
Show 19218+1737 BPM1024 272 98.9 90
Show 19343+1720 BPM1117 340 81.9 92
Show 19345+1759 YSC 241 79 0.1 94
Show 19270+1606 A 1648 182 0.9 95
Show 19214+1749 IPH 27 149 14.5 97
Show 19346+1808 STT 375 183 0.7 98
Show 19245+1613 TDT1434 108 0.5 101
Show 19335+1842 KPP4153 AD 249 4.2 101
Show 19211+1751 HU 338 152 0.3 101

 
 
WDS 19281+1739 : COMPONENTS
 
 
  A
B pa=297.9°
sep=6.48"
 
 
19281+1739 A
 
 
Componente originario normalizzato AB Name HD 231509 Coord arcsec 2000 192804.99+173854.0 Mag 8.62
Spectral class K0 (yellow-orange) PmRA 25.00 PmDE -4.0 SAO 104869
Tycho2 1605-00551-1 HD 231509 GC 26886 DM BD+17 3975
Tycho2
Tycho2 1605-00551-1 Pflag RAmdeg 292.02077652 DEmdeg 17.64833610
PmRA 21.7 PmDE -3.9 E RAmdeg 8 E DEmdeg 8
E pmRA 1.0 E pmDE 1.0 EpRAm 1990.88 EpDEm 1990.78
Num 9 Q RAmdeg 1.4 Q DEmdeg 0.8 Q pmRA 1.4
Q pmDE 0.8 BTmag 9.849 E BTmag 0.022 VTmag 8.615
E VTmag 0.013 Prox 67 TYC T HIP
CCDM RAdeg 292.02072333 DEdeg 17.64834528 EpRA 1990 1.60
EpDE 1990 1.58 E RAdeg 7.8 E DEdeg 8.2 Posflg
Corr -0.1
SAO
SAO 104869 DelFlag RA1950 PmRA1950 0.0021
DE1950 PmDE1950 -0.006 Vmag 8.3 SpType K0
Double code Source 70 CatNum 26886 DM BD+17 3975
DMcomp BDsup HD 231509 M HD 0
GC 26886 RA1950rad 5.08696806 DE1950rad 0.30622199 PmRA2000 0.0022
PmDE2000 -0.007
CCDM
Ccdm 19281+1739 RComp Comp A Note1
Note2 Discov num DRAs -1.14 DDEs -6.2
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.5 Sp K0 PmNote *
PmRA 0 PmDE -5 Dm number +17 3975 Cat1 BD
Name2 +17 1994 Cat2 AGK2/3 HD 231509 M HD
ADS BDS A12477 M ADS BDS N IDS IDS 19236N1727A
HIC
 
 
19281+1739 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 192804.59+173857.0 Mag 10.15 PmRA 0.00
PmDE 0.0 Calc delta mag 1.53 Calc coord yes
CCDM
Ccdm 19281+1739 RComp Comp B Note1
Note2 Discov num STF2529 DRAs DDEs
R dRAs Year 1831 Theta 296 Rho 6.6
Obs 8 Vmag 10.5 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A12477 M ADS BDS N IDS IDS 19236N1727B
HIC