Coord 2000 | 20258-0818 | Discov num | STF2678 | Comp | Coord arcsec 2000 | 20 25 50.00 -08 18 09.7 | |||||
Date first | 1831 | Date last | 2016 | Obs | 33 | ||||||
Pa first | 321 | Pa last | 310.4 | P.A. Now (θ) | 310.4° | ||||||
Sep first | 3.5 | Sep last | 3.373 | Sep. Now (ρ) | 3.373" | ||||||
Mag pri | 9.85 | Mag sec | 10.22 | delta mag (ΔM) | 0.37 | Spectral class | G5 (yellow) | ||||
Pri motion ra | +012 | Sec motion ra | +010 | ||||||||
Pri motion dec | -056 | Sec motion dec | -060 | ||||||||
Notes | V (Proper motion indicates physical) |
Name | HD 194425 | Constellation | Aquila | SAO | 144413 | Tycho2 | 5754-00091-1 | ||||
Gaia DR2 | 6906039925703317248 | HD | 194425 | GC | 28409 |
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 |
20258-0818 | STF2678 | 2000 | 27 | 310 | 3.3 | 9.85 | 10.22 | G5 | D | 202550.00-081809.7 | |
20258-0818 | STF2678 | 2011 | 28 | 311 | 3.1 | 9.85 | 10.22 | G5 | D | 202550.00-081809.7 | |
20258-0818 | STF2678 | 2016 | 30 | 310 | 3.4 | 9.85 | 10.22 | G5 | 202550.00-081809.7 |
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=310.7° sep=3.35" |
Componente originario normalizzato | AB | Name | HD 194425 | Coord arcsec 2000 | 202550.00-081809.7 | Mag | 9.85 | ||||
Spectral class | G5 (yellow) | PmRA | 12.00 | PmDE | -56.0 | SAO | 144413 | ||||
Tycho2 | 5754-00091-1 | HD | 194425 | GC | 28409 | DM | BD-08 5357 |
Tycho2 | 5754-00091-1 | Pflag | RAmdeg | 306.45832278 | DEmdeg | -8.30269952 | |||||
PmRA | 26.7 | PmDE | -64.7 | E RAmdeg | 22 | E DEmdeg | 27 | ||||
E pmRA | 1.6 | E pmDE | 1.6 | EpRAm | 1989.46 | EpDEm | 1988.30 | ||||
Num | 6 | Q RAmdeg | 1.2 | Q DEmdeg | 0.9 | Q pmRA | 1.2 | ||||
Q pmDE | 0.9 | BTmag | 10.687 | E BTmag | 0.045 | VTmag | 9.845 | ||||
E VTmag | 0.034 | Prox | 33 | TYC | T | HIP | |||||
CCDM | RAdeg | 306.45826028 | DEdeg | -8.30254444 | EpRA 1990 | 1.64 | |||||
EpDE 1990 | 1.38 | E RAdeg | 22.1 | E DEdeg | 26.6 | Posflg | D | ||||
Corr | -0.2 |
SAO | 144413 | DelFlag | RA1950 | PmRA1950 | 0.0015 | ||||||
DE1950 | PmDE1950 | -0.041 | Vmag | 9.2 | SpType | G5 | |||||
Double code | Source | 70 | CatNum | 28409 | DM | BD-08 5357 | |||||
DMcomp | BDsup | HD | 194425 | M HD | 0 | ||||||
GC | 28409 | RA1950rad | 5.33693233 | DE1950rad | -0.14775318 | PmRA2000 | 0.0017 | ||||
PmDE2000 | -0.042 |
Ccdm | 20258-0818 | RComp | Comp | A | Note1 | ||||||
Note2 | Discov num | DRAs | 1.91 | DDEs | -7.5 | ||||||
R dRAs | 10 | Year | Theta | Rho | |||||||
Obs | 2 | Vmag | 9.9 | Sp | G5 | PmNote | * | ||||
PmRA | 23 | PmDE | -41 | Dm number | -08 5357 | Cat1 | BD | ||||
Name2 | 144413 | Cat2 | SAO | HD | 194425 | M HD | |||||
ADS BDS | A13836 | M ADS BDS | N IDS | IDS | 20204S0838A | ||||||
HIC |
Componente originario normalizzato | AB | Coord arcsec 2000 | 202549.83-081807.5 | Mag | 10.22 | PmRA | 10.00 | ||||
PmDE | -60.0 | Calc delta mag | 0.37 | Calc coord | yes |
Ccdm | 20258-0818 | RComp | Comp | B | Note1 | ||||||
Note2 | Discov num | STF2678 | DRAs | DDEs | |||||||
R dRAs | Year | 1937 | Theta | 311 | Rho | 3.6 | |||||
Obs | 9 | Vmag | 10.1 | Sp | PmNote | ||||||
PmRA | PmDE | Dm number | Cat1 | ||||||||
Name2 | Cat2 | HD | M HD | ||||||||
ADS BDS | A13836 | M ADS BDS | N IDS | IDS | 20204S0838B | ||||||
HIC |