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Current system
19374+2249
STF 2551 AB
HD 344630


Nearby doubles
7' : 19379+2248
A 164

23' : 19386+2303
A 165AB

27' : 19392+2255
COU 518

27' : 19388+2307
HDS2788

30' : 19369+2220
NSN 719

34' : 19381+2321
POU3969

36' : 19358+2316
A 163

37' : 19382+2323
POU3970

38' : 19395+2313
POU3988

41' : 19403+2250
A 2788

41' : 19365+2328
POU3956

42' : 19394+2319
POU3985

42' : 19350+2315
POU3934

44' : 19391+2325
POU3982

44' : 19400+2314
POU3996

44' : 19394+2215
STF2556

46' : 19400+2317
AHD 3

47' : 19385+2333
POU3971

48' : 19404+2309
GRV 267

48' : 19386+2334
POU3972

51' : 19358+2334
A 2787

52' : 19350+2328
A 162

53' : 19395+2332
POU3990

53' : 19352+2205
TDT1558

54' : 19395+2333
POU3991

54' : 19406+2321
POU4006



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.

19374+2249 STF 2551 AB (HD 344630)

 
 
19h 37m 23.23s +22° 48' 51.0" P.A. 42.00 sep 6.8 mag 9.69,10.53 Sp F5
 
 
Coord 2000 19374+2249 Discov num STF2551 Comp AB Coord arcsec 2000 19 37 23.23 +22 48 51.0
Date first 1829 Date last 2020 Obs 31
Pa first 42 Pa last 42.1 P.A. Now (θ) 42.1°
Sep first 6.8 Sep last 6.77 Sep. Now (ρ) 6.77"
Mag pri 9.69 Mag sec 10.53 delta mag (ΔM) 0.84 Spectral class F5 (yellow-white)
Pri motion ra -015 Sec motion ra -014
Pri motion dec +003 Sec motion dec +003
Notes V (Proper motion indicates physical)
rPM=0.065 (< 0.3, Physical double)
This double is physical.
 
 
19374+2249 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 344630 87468 19 37 23 +22 48 51 STF 2551 AB 2020 31 42 6.8 9.69 10.53 0.84 <===
Show 87468 19 37 23 +22 48 51 STF 2551 AC 2015 15 319 42.8 9.69 11.79 2.10
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 344630 Constellation Vulpecula SAO 87468 Tycho2 2138-01225-1
Gaia DR2 2018662086871937920 HD 344630 GC 27149
 
 
WDS 19374+2249 STF 2551 AB (HD 344630) : 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
19374+2249 STF2551 AB 2007 19 42 6.8 9.69 10.53 F5 D 193723.23+224851.0
19374+2249 STF2551 AB 2008 20 42 6.5 9.69 10.53 F5 D 193723.23+224851.0
19374+2249 STF2551 AB 2010 23 43 5.8 9.69 10.53 F5 193723.23+224851.0
19374+2249 STF2551 AB 2017 23 42 6.8 9.69 10.53 F5 193723.23+224851.0
19374+2249 STF2551 AB 2018 25 42 6.8 9.69 10.53 F5 193723.23+224851.0
19374+2249 STF2551 AB 2020 31 42 6.8 9.69 10.53 F5 V 193723.23+224851.0

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

 
 
WDS 19374+2249 STF 2551 AB (HD 344630) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 19374+2249 STF 2551 AB (HD 344630) : MEASURES
 
 
No records found.

 
 
WDS 19374+2249 (HD 344630) : VIRTUAL EYEPIECE
 
 

19374+2249 STF2551A mag 9.69 Sp F5 19374+2249 STF2551B sep 6.5 P.A. 39.80 mag 10.53 19374+2249 STF2551C sep 41.4 P.A. 321.10 mag 11.79 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 19374+2249 (HD 344630) : ALADIN DSS IMAGE @ 19h 37m 23.23s +22° 48' 51.0"
 
 
 
 
WDS 19374+2249 STF 2551 AB (HD 344630) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

19374+2249 STF2551AB distance=1' 19374+2249 STF2551AC distance=1' 19379+2248 A 164 distance=7' 19386+2303 A 165AB distance=23' 19386+2303 A 165AC distance=23' 19392+2255 COU 518 distance=27' 19388+2307 HDS2788 distance=27' 19369+2220 NSN 719 distance=30' 19381+2321 POU3969 distance=34' 19358+2316 A 163 distance=36' 19382+2323 POU3970 distance=37' 19395+2313 POU3988 distance=38' 19403+2250 A 2788 distance=41' 19365+2328 POU3956 distance=41' 19394+2319 POU3985 distance=42' 19350+2315 POU3934 distance=42' 19391+2325 POU3982 distance=44' 19400+2314 POU3996 distance=44' 19394+2215 STF2556 distance=44' 19400+2317 AHD 3 distance=46' 19385+2333 POU3971 distance=47' 19404+2309 GRV 267 distance=48' 19386+2334 POU3972 distance=48' 19358+2334 A 2787 distance=51' 19350+2328 A 162 distance=52' 19395+2332 POU3990 distance=53' 19352+2205 TDT1558 distance=53' 19395+2333 POU3991 distance=54' 19406+2321 POU4006 distance=54' 19367+2342 POU3958 distance=55' 19399+2332 POU4000 distance=56' 19349+2333 POU3932 distance=57' 19401+2331 POU4004 distance=57' 19402+2331 A 166 distance=57' 19410+2317 CVR 217 distance=58' 19345+2330 POU3924 distance=58' 19350+2338 POU3937 distance=59' 19372+2347 POU3964 distance=60' 19348+2337 POU3929 distance=60' 19417+2239 TDT1640 distance=61' 19369+2349 POU3961 distance=61' 19335+2322 BKO 417 distance=63' 19335+2323 POU3910 distance=63' 19405+2335 POU4007 distance=64' 19410+2329 ARN 48 distance=64' 19341+2333 POU3920 distance=65' 19415+2319 A 2789 distance=65' 19357+2349 POU3950 distance=65' 19335+2324 POU3909 distance=65' 19334+2325 POU3908 distance=65' 19334+2327 BKO 415 distance=67' 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 19374+2249 STF2551 AB 42 6.8 1
Show 19374+2249 STF2551 AC 319 42.8 1
Show 19379+2248 A 164 253 0.2 7
Show 19386+2303 A 165 AB 123 8.5 23
Show 19386+2303 A 165 AC 341 19.0 23
Show 19392+2255 COU 518 284 0.6 27
Show 19388+2307 HDS2788 233 0.3 27
Show 19369+2220 NSN 719 41 2.2 30
Show 19381+2321 POU3969 305 12.3 34
Show 19358+2316 A 163 20 0.2 36
Show 19382+2323 POU3970 220 5.1 37
Show 19395+2313 POU3988 212 6.7 38
Show 19403+2250 A 2788 328 1.3 41
Show 19365+2328 POU3956 243 7.9 41
Show 19394+2319 POU3985 37 14.4 42
Show 19350+2315 POU3934 59 17.1 42
Show 19391+2325 POU3982 300 11.7 44
Show 19400+2314 POU3996 81 9.3 44
Show 19394+2215 STF2556 334 0.4 44
Show 19400+2317 AHD 3 295 21.4 46
Show 19385+2333 POU3971 244 13.0 47
Show 19404+2309 GRV 267 341 36.0 48
Show 19386+2334 POU3972 152 12.9 48
Show 19358+2334 A 2787 111 3.9 51
Show 19350+2328 A 162 306 0.1 52
Show 19395+2332 POU3990 9 15.4 53
Show 19352+2205 TDT1558 2 1.9 53
Show 19395+2333 POU3991 190 11.0 54
Show 19406+2321 POU4006 203 13.6 54
Show 19367+2342 POU3958 144 8.0 55
Show 19399+2332 POU4000 274 14.0 56
Show 19349+2333 POU3932 301 14.0 57
Show 19401+2331 POU4004 305 10.1 57
Show 19402+2331 A 166 241 0.9 57
Show 19410+2317 CVR 217 48 19.3 58
Show 19345+2330 POU3924 292 9.4 58
Show 19350+2338 POU3937 209 3.4 59
Show 19372+2347 POU3964 174 10.0 60
Show 19348+2337 POU3929 347 2.3 60
Show 19417+2239 TDT1640 95 1.1 61
Show 19369+2349 POU3961 317 12.0 61
Show 19335+2322 BKO 417 334 5.7 63
Show 19335+2323 POU3910 137 10.0 63
Show 19405+2335 POU4007 154 10.2 64
Show 19410+2329 ARN 48 5 25.8 64
Show 19341+2333 POU3920 9 6.9 65
Show 19415+2319 A 2789 278 0.7 65
Show 19357+2349 POU3950 246 17.0 65
Show 19335+2324 POU3909 127 14.0 65
Show 19334+2325 POU3908 213 11.8 65
Show 19334+2327 BKO 415 263 5.1 67

 
 
WDS 19374+2249 : COMPONENTS
 
 
  A B
B pa=39.8°
sep=6.54"
 
C pa=321.1°
sep=41.38"
pa=312.0°
sep=40.61"
 
 
19374+2249 A
 
 
Name HD 344630 Coord arcsec 2000 193723.23+224851.0 Mag 9.69 Spectral class F5 (yellow-white)
PmRA -15.00 PmDE 3.0 SAO 87468 Tycho2 2138-01225-1
HD 344630 GC 27149 DM BD+22 3746
Tycho2
Tycho2 2138-01225-1 Pflag RAmdeg 294.34684463 DEmdeg 22.81417076
PmRA -14.5 PmDE 2.3 E RAmdeg 16 E DEmdeg 16
E pmRA 1.2 E pmDE 1.1 EpRAm 1989.34 EpDEm 1989.24
Num 7 Q RAmdeg 1.4 Q DEmdeg 1.8 Q pmRA 1.4
Q pmDE 1.8 BTmag 10.210 E BTmag 0.029 VTmag 9.691
E VTmag 0.026 Prox 67 TYC T HIP
CCDM RAdeg 294.34688028 DEdeg 22.81416528 EpRA 1990 1.66
EpDE 1990 1.70 E RAdeg 16.1 E DEdeg 16.1 Posflg
Corr 0.1
SAO
SAO 87468 DelFlag RA1950 PmRA1950 -0.0013
DE1950 PmDE1950 -0.015 Vmag 9.4 SpType G0
Double code Source 70 CatNum 27149 DM BD+22 3746
DMcomp BDsup HD 344630 M HD 0
GC 27149 RA1950rad 5.12800278 DE1950rad 0.39619368 PmRA2000 -0.0012
PmDE2000 -0.017
CCDM
Ccdm 19374+2249 RComp Comp A Note1
Note2 Discov num DRAs -0.74 DDEs -9.6
R dRAs 12 Year Theta Rho
Obs 3 Vmag 9.7 Sp G0 PmNote
PmRA -22 PmDE -19 Dm number +22 3746 Cat1 BD
Name2 +22 1991 Cat2 AGK2/3 HD M HD
ADS BDS A12697 M ADS BDS N IDS IDS 19331N2235A
HIC
 
 
19374+2249 B
 
 
Coord arcsec 2000 193723.53+224856.0 Mag 10.53 PmRA -14.00 PmDE 3.0
Tycho2 2138-02211-1 Calc delta mag 0.84 Calc coord yes
Tycho2
Tycho2 2138-02211-1 Pflag RAmdeg 294.34817188 DEmdeg 22.81556318
PmRA -16.6 PmDE 0.1 E RAmdeg 33 E DEmdeg 33
E pmRA 1.4 E pmDE 1.4 EpRAm 1985.46 EpDEm 1985.68
Num 3 Q RAmdeg 1.6 Q DEmdeg 1.5 Q pmRA 1.6
Q pmDE 1.5 BTmag 11.147 E BTmag 0.057 VTmag 10.529
E VTmag 0.048 Prox 67 TYC T HIP
CCDM RAdeg 294.34821389 DEdeg 22.81556278 EpRA 1990 1.66
EpDE 1990 1.70 E RAdeg 34.3 E DEdeg 33.6 Posflg
Corr 0.1
CCDM
Ccdm 19374+2249 RComp Comp B Note1
Note2 Discov num STF2551 DRAs DDEs
R dRAs Year 1829 Theta 042 Rho 6.7
Obs 7 Vmag 10.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 +22 1992 Cat2 AGK2/3 HD M HD
ADS BDS A12697 M ADS BDS N IDS IDS 19331N2235B
HIC
 
 
19374+2249 C
 
 
Coord arcsec 2000 193721.35+224923.2 Mag 11.79 PmRA -4.00 PmDE -4.0
Calc delta mag 2.1 Calc coord yes
CCDM
Ccdm 19374+2249 RComp Comp C Note1
Note2 Discov num STF2551 DRAs DDEs
R dRAs Year 1877 Theta 320 Rho 44.5
Obs 3 Vmag 11.4 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A12697 M ADS BDS N IDS IDS 19331N2235C
HIC