Coord 2000 | 18588+4041 | Discov num | STF2431 | Comp | Coord arcsec 2000 | 18 58 46.59 +40 40 45.1 | |||||
Date first | 1782 | Date last | 2013 | Obs | 45 | ||||||
Pa first | 246 | Pa last | 235.7 | P.A. Now (θ) | 235.7° | ||||||
Sep first | 19.8 | Sep last | 19.009 | Sep. Now (ρ) | 19.009" | ||||||
Mag pri | 6.17 | Mag sec | 9.61 | delta mag (ΔM) | 3.44 | Spectral class | B3V (blue-white) | ||||
Pri motion ra | +002 | Sec motion ra | +000 | ||||||||
Pri motion dec | +000 | Sec motion dec | -004 | ||||||||
Notes | N V (See Notes, Proper motion indicates physical) |
Name | HD 176502 | Constellation | Lyra | SAO | 47965 | HIP | 93177 | ||||
Tycho2 | 3123-01062-1 | Gaia DR2 | 2103449001881575680 | HD | 176502 | HR | 7179 | ||||
GC | 26087 | ADS | 11910 | BD | BD+40 3544 | Distance | 300.3 | ||||
Distance ly | 979.58 |
discov_num | notes | refcode |
STF2431 | BDS 8981, H IV 93 is identical. A spectroscopic binary. | |
H 4 93. |
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 |
18588+4041 | STF2431 | 2006 | 36 | 237 | 19.3 | 6.17 | 9.61 | B3V | N D | 185846.59+404045.1 | |
18588+4041 | STF2431 | 2009 | 37 | 236 | 19.3 | 6.17 | 9.61 | B3V | N D | 185846.59+404045.1 | |
18588+4041 | STF2431 | 2012 | 42 | 233 | 19.2 | 6.17 | 9.61 | B3V | N D | 185846.59+404045.1 | |
18588+4041 | STF2431 | 2013 | 43 | 236 | 19.0 | 6.17 | 9.61 | B3V | NV | 185846.59+404045.1 |
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=228.0° sep=16.02" |
Componente originario normalizzato | AB | Name | HD 176502 | Coord arcsec 2000 | 185846.59+404045.1 | Mag | 6.17 | ||||
Spectral class | B3V (blue-white) | PmRA | 2.00 | PmDE | 0.0 | SAO | 47965 | ||||
HIP | 93177 | Tycho2 | 3123-01062-1 | HD | 176502 | HR | 7179 | ||||
GC | 26087 | BD | BD+40 3544 |
Tycho2 | 3123-01062-1 | Pflag | RAmdeg | 284.69411947 | DEmdeg | 40.67919317 | |||||
PmRA | 2.0 | PmDE | -0.5 | E RAmdeg | 4 | E DEmdeg | 4 | ||||
E pmRA | 0.9 | E pmDE | 0.9 | EpRAm | 1991.26 | EpDEm | 1991.36 | ||||
Num | 15 | Q RAmdeg | 0.8 | Q DEmdeg | 0.5 | Q pmRA | 0.7 | ||||
Q pmDE | 0.6 | BTmag | 5.997 | E BTmag | 0.014 | VTmag | 6.167 | ||||
E VTmag | 0.010 | Prox | 190 | TYC | T | HIP | 93177 | ||||
CCDM | RAdeg | 284.69411278 | DEdeg | 40.67919444 | EpRA 1990 | 1.54 | |||||
EpDE 1990 | 1.67 | E RAdeg | 3.6 | E DEdeg | 3.5 | Posflg | |||||
Corr | 0.0 |
SAO | 47965 | DelFlag | RA1950 | PmRA1950 | 0.0003 | ||||||
DE1950 | PmDE1950 | 0 | Vmag | 6.1 | SpType | B5 | |||||
Double code | Source | 70 | CatNum | 26087 | DM | BD+40 3544 | |||||
DMcomp | BDsup | HD | 176502 | M HD | 0 | ||||||
GC | 26087 | RA1950rad | 4.961704 | DE1950rad | 0.70876987 | PmRA2000 | 0.0007 | ||||
PmDE2000 | -0.001 |
Catalog | H | HIP | 93177 | Proxy | RAhms | 18 58 46.59 | |||||
DEdms | +40 40 45.1 | Vmag | 6.2 | VarFlag | 2 | R Vmag | T | ||||
RAdeg | 284.694 | DEdeg | 40.6792 | AstroRef | Plx | 3.44 | |||||
CCDM | 18588+4041 | N CCDM | I | Nsys | 1 | Ncomp | 1 | ||||
MultFlag | Source | Qual | S | M HIP | |||||||
Theta | Rho | HD | 176502 | BD | BD+40 3544 | ||||||
CD | CP | Dm number | +40 3544 | VIred | -0.16 | ||||||
SpType | B3V | R SpType | Coord arcsec 2000 | 185846.59+404045.1 |
HIP | 93177 | Sn | 7 | So | 0 | Nc | 1 | ||||
RArad | 4.9688496118 | DErad | 0.7099858938 | Plx | 3.33 | PmRA | 2.14 | ||||
PmDE | -0.21 | E RArad | 0.29 | E DErad | 0.42 | E Plx | 0.41 | ||||
E pmRA | 0.31 | E pmDE | 0.52 | Hpmag | 6.1513 | E Hpmag | 0.0043 | ||||
SHp | 0.034 | VA | 2 | BV | -0.146 | E BV | 0.006 | ||||
VI | -0.14 |
Ccdm | 18588+4041 | RComp | Comp | A | Note1 | ||||||
Note2 | Discov num | DRAs | -1.30 | DDEs | -14.4 | ||||||
R dRAs | 10 | Year | Theta | Rho | |||||||
Obs | 2 | Vmag | 6.2 | Sp | B5 | PmNote | * | ||||
PmRA | 16 | PmDE | 6 | Dm number | +40 3544 | Cat1 | BD | ||||
Name2 | +40 1754 | Cat2 | AGK2/3 | HD | 176502 | M HD | |||||
ADS BDS | A11910 | M ADS BDS | N IDS | IDS | 18555N4033A | ||||||
HIC | 93177 |
Componente originario normalizzato | AB | Coord arcsec 2000 | 185845.54+404034.4 | Mag | 9.61 | PmRA | 0.00 | ||||
PmDE | -4.0 | Calc delta mag | 3.44 | Calc coord | yes |
Ccdm | 18588+4041 | RComp | Comp | B | Note1 | ||||||
Note2 | Discov num | STF2431 | DRAs | -2.67 | DDEs | -25.2 | |||||
R dRAs | 90 | Year | 1829 | Theta | 236 | Rho | 18.9 | ||||
Obs | 8 | Vmag | 8.5 | Sp | PmNote | ||||||
PmRA | 16 | PmDE | 6 | Dm number | Cat1 | ||||||
Name2 | Cat2 | HD | M HD | ||||||||
ADS BDS | A11910 | M ADS BDS | N | N IDS | IDS | 18555N4033B | |||||
HIC |