Coord 2000 | 19088+3446 | Discov num | STF2470 | Comp | Coord arcsec 2000 | 19 08 45.20 +34 45 37.1 | |||||
Date first | 1824 | Date last | 2017 | Obs | 63 | ||||||
Pa first | 272 | Pa last | 267.3 | P.A. Now (θ) | 267.3° | ||||||
Sep first | 13.1 | Sep last | 13.8 | Sep. Now (ρ) | 13.8" | ||||||
Mag pri | 7.03 | Mag sec | 8.44 | delta mag (ΔM) | 1.41 | Spectral class | B5V (blue-white) | ||||
Pri motion ra | +004 | Sec motion ra | +001 | ||||||||
Pri motion dec | +001 | Sec motion dec | -004 | ||||||||
Notes | N (See Notes) |
Name | HD 178849 | Constellation | Lyra | SAO | 67870 | HIP | 94039 | ||||
Tycho2 | 2648-02147-1 | Gaia DR2 | 2044533728593913088 | HD | 178849 | GC | 26392 | ||||
BD | BD+34 3436 | Distance | 719.42 | Distance ly | 2346.75 |
discov_num | notes | refcode |
STF2470 | B is BD+34 3436. A is a spectroscopic binary. |
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. |
coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
19088+3446 | STF2470 | 2007 | 50 | 268 | 13.7 | 7.03 | 8.44 | B5V | N D | 190845.20+344537.1 | |
19088+3446 | STF2470 | 2010 | 53 | 269 | 13.8 | 7.03 | 8.44 | B5V | N D | 190845.20+344537.1 | |
19088+3446 | STF2470 | 2013 | 56 | 267 | 13.9 | 7.03 | 8.44 | B5V | N D | 190845.20+344537.1 | |
19088+3446 | STF2470 | 2014 | 57 | 268 | 13.8 | 7.03 | 8.44 | B5V | N D | 190845.20+344537.1 | |
19088+3446 | STF2470 | 2017 | 59 | 267 | 13.8 | 7.03 | 8.44 | B5V | N | 190845.20+344537.1 |
Show | date | username | difficulty | separation | pa_estim | interest | notes |
Show | 23/11/25 | Diego Vercelli | very easy | separated | 260 | enought interesting | Same FOV STF2474. |
Click on the map to see the double of your interest. Pass over with the mouse cursor to display the catalog designation. |
Click on the map to see the double of your interest. Pass over with the mouse cursor to display the catalog designation. |
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A | |
B | pa=266.7° sep=11.34" |
Componente originario normalizzato | AB | Name | HD 178849 | Coord arcsec 2000 | 190845.20+344537.1 | Mag | 7.03 | ||||
Spectral class | B5V (blue-white) | PmRA | 4.00 | PmDE | 1.0 | SAO | 67870 | ||||
HIP | 94043 | Tycho2 | 2648-02147-1 | HD | 178849 | GC | 26392 | ||||
BD | BD+34 3437 |
Tycho2 | 2648-02147-1 | Pflag | RAmdeg | 287.18831571 | DEmdeg | 34.76029973 | |||||
PmRA | 0.2 | PmDE | -3.4 | E RAmdeg | 4 | E DEmdeg | 4 | ||||
E pmRA | 1.6 | E pmDE | 1.7 | EpRAm | 1991.45 | EpDEm | 1991.55 | ||||
Num | 11 | Q RAmdeg | 1.0 | Q DEmdeg | 1.2 | Q pmRA | 0.9 | ||||
Q pmDE | 1.1 | BTmag | 6.884 | E BTmag | 0.014 | VTmag | 7.031 | ||||
E VTmag | 0.010 | Prox | 138 | TYC | T | HIP | 94043 | ||||
CCDM | A | RAdeg | 287.18831500 | DEdeg | 34.76030778 | EpRA 1990 | 1.58 | ||||
EpDE 1990 | 1.66 | E RAdeg | 4.0 | E DEdeg | 3.8 | Posflg | |||||
Corr | 0.0 |
SAO | 67870 | DelFlag | RA1950 | PmRA1950 | 0.0002 | ||||||
DE1950 | PmDE1950 | -0.004 | Vmag | 6.6 | SpType | B3 | |||||
Double code | Source | 70 | CatNum | 26392 | DM | BD+34 3437 | |||||
DMcomp | BDsup | HD | 178849 | M HD | 0 | ||||||
GC | 26392 | RA1950rad | 5.00442093 | DE1950rad | 0.6052646 | PmRA2000 | 0.0005 | ||||
PmDE2000 | -0.004 |
Catalog | H | HIP | 94043 | Proxy | RAhms | 19 08 45.19 | |||||
DEdms | +34 45 37.1 | Vmag | 7.04 | VarFlag | R Vmag | H | |||||
RAdeg | 287.188 | DEdeg | 34.7603 | AstroRef | A | Plx | 2.47 | ||||
CCDM | 19088+3446 | N CCDM | I | Nsys | 2 | Ncomp | 1 | ||||
MultFlag | C | Source | P | Qual | A | M HIP | |||||
Theta | Rho | HD | 178849 | BD | BD+34 3437 | ||||||
CD | CP | Dm number | +34 3437 | VIred | -0.14 | ||||||
SpType | B3V | R SpType | Coord arcsec 2000 | 190845.19+344537.1 |
HIP | 94043 | Sn | 95 | So | 3 | Nc | 1 | ||||
RArad | 5.0123816112 | DErad | 0.6066818196 | Plx | 0.08 | PmRA | 5.58 | ||||
PmDE | -4.54 | E RArad | 0.99 | E DErad | 1.02 | E Plx | 1.31 | ||||
E pmRA | 1.17 | E pmDE | 1.17 | Hpmag | 7.0019 | E Hpmag | 0.0082 | ||||
SHp | 0.048 | VA | 0 | BV | -0.127 | E BV | 0.005 | ||||
VI | -0.12 |
Ccdm | 19088+3446 | RComp | Comp | A | Note1 | ||||||
Note2 | Discov num | DRAs | -2.75 | DDEs | -23.7 | ||||||
R dRAs | 10 | Year | Theta | Rho | |||||||
Obs | 2 | Vmag | 6.6 | Sp | B3 | PmNote | * | ||||
PmRA | 8 | PmDE | -21 | Dm number | +34 3437 | Cat1 | BD | ||||
Name2 | +34 1803 | Cat2 | AGK2/3 | HD | 178849 | M HD | |||||
ADS BDS | A12093 | M ADS BDS | N IDS | IDS | 19051N3436A | ||||||
HIC | 94043 |
Componente originario normalizzato | AB | Coord arcsec 2000 | 190844.28+344536.4 | Mag | 8.44 | PmRA | 1.00 | ||||
PmDE | -4.0 | HIP | 94039 | BD | BD+34 3436 | Calc delta mag | 1.41 | ||||
Calc coord | yes |
Catalog | H | HIP | 94039 | Proxy | RAhms | 19 08 44.08 | |||||
DEdms | +34 45 36.7 | Vmag | 8.48 | VarFlag | R Vmag | H | |||||
RAdeg | 287.184 | DEdeg | 34.7602 | AstroRef | B | Plx | 6.68 | ||||
CCDM | 19088+3446 | N CCDM | I | Nsys | 2 | Ncomp | 1 | ||||
MultFlag | C | Source | I | Qual | A | M HIP | |||||
Theta | Rho | HD | BD | BD+34 3436 | |||||||
CD | CP | Dm number | +34 3436 | VIred | 0.04 | ||||||
SpType | A2 | R SpType | Coord arcsec 2000 | 190844.08+344536.7 |
HIP | 94039 | Sn | 95 | So | 3 | Nc | 1 | ||||
RArad | 5.0123004406 | DErad | 0.606679826 | Plx | -1.39 | PmRA | 3.66 | ||||
PmDE | -2.45 | E RArad | 1.47 | E DErad | 1.51 | E Plx | 1.94 | ||||
E pmRA | 1.74 | E pmDE | 1.62 | Hpmag | 8.6354 | E Hpmag | 0.0256 | ||||
SHp | 0 | VA | 0 | BV | 0.061 | E BV | 0.015 | ||||
VI | 0.07 |
Ccdm | 19088+3446 | RComp | Comp | B | Note1 | ||||||
Note2 | Discov num | STF2470 | DRAs | -3.91 | DDEs | -23.5 | |||||
R dRAs | 10 | Year | 1829 | Theta | 271 | Rho | 13.4 | ||||
Obs | 14 | Vmag | 8.6 | Sp | PmNote | * | |||||
PmRA | -4 | PmDE | -8 | Dm number | +34 3436 | Cat1 | BD | ||||
Name2 | +34 1802 | Cat2 | AGK2/3 | HD | M HD | ||||||
ADS BDS | A12093 | M ADS BDS | N IDS | IDS | 19051N3436B | ||||||
HIC | 94039 |