Coord 2000 | 12257+4444 | Discov num | STF1642 | Comp | Coord arcsec 2000 | 12 25 45.00 +44 44 04.4 | |||||
Date first | 1830 | Date last | 2019 | Obs | 48 | ||||||
Pa first | 180 | Pa last | 179.6 | P.A. Now (θ) | 179.6° | ||||||
Sep first | 1.5 | Sep last | 2.46 | Sep. Now (ρ) | 2.46" | ||||||
Mag pri | 8.80 | Mag sec | 9.40 | delta mag (ΔM) | 0.6 | Spectral class | F5 (yellow-white) | ||||
Pri motion ra | -072 | Sec motion ra | -072 | ||||||||
Pri motion dec | -004 | Sec motion dec | -004 | ||||||||
Notes |
Name | HD 108224 | Constellation | Canes Venatici | SAO | 44170 | HIP | 60643 | ||||
Tycho2 | 3020-02183-1 | Gaia DR2 | 1535708751171903616 | HD | 108224 | GC | 16945 | ||||
BD | BD+45 2033 | Distance | 244.5 | Distance ly | 797.56 |
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 |
12257+4444 | STF1642 | 2006 | 41 | 179 | 2.5 | 8.80 | 9.40 | F5 | 122545.00+444404.4 | ||
12257+4444 | STF1642 | 2007 | 42 | 180 | 2.4 | 8.80 | 9.40 | F5 | 122545.00+444404.4 | ||
12257+4444 | STF1642 | 2010 | 44 | 179 | 2.5 | 8.80 | 9.40 | F5 | 122545.00+444404.4 | ||
12257+4444 | STF1642 | 2012 | 42 | 179 | 2.5 | 8.80 | 9.40 | F5 | 122545.00+444404.4 | ||
12257+4444 | STF1642 | 2017 | 44 | 180 | 2.5 | 8.80 | 9.40 | F5 | 122545.00+444404.4 | ||
12257+4444 | STF1642 | 2019 | 47 | 180 | 2.5 | 8.80 | 9.40 | F5 | 122545.00+444404.4 |
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=179.7° sep=2.46" |
Componente originario normalizzato | AB | Name | HD 108224 | Coord arcsec 2000 | 122545.00+444404.4 | Mag | 8.8 | ||||
Spectral class | F5 (yellow-white) | PmRA | -72.00 | PmDE | -4.0 | SAO | 44170 | ||||
HIP | 60643 | Tycho2 | 3020-02183-1 | HD | 108224 | GC | 16945 | ||||
BD | BD+45 2033 |
Tycho2 | 3020-02183-1 | Pflag | P | RAmdeg | 186.43751077 | DEmdeg | 44.73455533 | ||||
PmRA | -71.5 | PmDE | -4.0 | E RAmdeg | 8 | E DEmdeg | 9 | ||||
E pmRA | 1.5 | E pmDE | 1.4 | EpRAm | 1991.35 | EpDEm | 1991.26 | ||||
Num | 4 | Q RAmdeg | 0.4 | Q DEmdeg | 1.6 | Q pmRA | 0.3 | ||||
Q pmDE | 1.5 | BTmag | 9.287 | E BTmag | 0.019 | VTmag | 8.796 | ||||
E VTmag | 0.015 | Prox | 25 | TYC | T | HIP | 60643 | ||||
CCDM | A | RAdeg | 186.43774000 | DEdeg | 44.73475917 | EpRA 1990 | 1.65 | ||||
EpDE 1990 | 1.71 | E RAdeg | 8.2 | E DEdeg | 8.9 | Posflg | D | ||||
Corr | 0.0 |
SAO | 44170 | DelFlag | RA1950 | PmRA1950 | -0.0052 | ||||||
DE1950 | PmDE1950 | -0.014 | Vmag | 8 | SpType | F5 | |||||
Double code | Source | 70 | CatNum | 16945 | DM | BD+45 2033 | |||||
DMcomp | BDsup | HD | 108224 | M HD | 0 | ||||||
GC | 16945 | RA1950rad | 3.24331263 | DE1950rad | 0.78559451 | PmRA2000 | -0.0049 | ||||
PmDE2000 | -0.01 |
Catalog | H | HIP | 60643 | Proxy | H | RAhms | 12 25 45.06 | ||||
DEdms | +44 44 05.1 | Vmag | 8.27 | VarFlag | R Vmag | H | |||||
RAdeg | 186.438 | DEdeg | 44.7348 | AstroRef | A | Plx | 4.71 | ||||
CCDM | 12257+4444 | N CCDM | I | Nsys | 1 | Ncomp | 2 | ||||
MultFlag | C | Source | Qual | A | M HIP | AB | |||||
Theta | 179 | Rho | 2.511 | HD | 108224 | BD | BD+45 2033 | ||||
CD | CP | Dm number | +45 2033 | VIred | 0.54 | ||||||
SpType | F5 | R SpType | Coord arcsec 2000 | 122545.06+444405.1 |
HIP | 60643 | Sn | 15 | So | 3 | Nc | 2 | ||||
RArad | 3.2539526612 | DErad | 0.780768882 | Plx | 4.09 | PmRA | -69.36 | ||||
PmDE | -4.71 | E RArad | 1 | E DErad | 0.74 | E Plx | 1.17 | ||||
E pmRA | 1.09 | E pmDE | 0.67 | Hpmag | 8.3811 | E Hpmag | 0.0017 | ||||
SHp | 0.017 | VA | 0 | BV | 0.483 | E BV | 0.018 | ||||
VI | 0.55 |
Ccdm | 12257+4444 | RComp | Comp | A | Note1 | ||||||
Note2 | Discov num | DRAs | 2.97 | DDEs | 3.5 | ||||||
R dRAs | 10 | Year | Theta | Rho | |||||||
Obs | 2 | Vmag | 8.4 | Sp | F5 | PmNote | * | ||||
PmRA | -81 | PmDE | -21 | Dm number | +45 2033 | Cat1 | BD | ||||
Name2 | +45 998 | Cat2 | AGK2/3 | HD | 108224 | M HD | |||||
ADS BDS | A 8546 | M ADS BDS | N IDS | IDS | 12209N4517A | ||||||
HIC | 60643 |
Componente originario normalizzato | AB | Coord arcsec 2000 | 122545.00+444401.9 | Mag | 9.4 | PmRA | -72.00 | ||||
PmDE | -4.0 | Tycho2 | 3020-02183-2 | Calc delta mag | 0.6 | Calc coord | yes |
Tycho2 | 3020-02183-2 | Pflag | P | RAmdeg | 186.43751077 | DEmdeg | 44.73455533 | ||||
PmRA | -71.5 | PmDE | -4.0 | E RAmdeg | 8 | E DEmdeg | 9 | ||||
E pmRA | 1.5 | E pmDE | 1.4 | EpRAm | 1991.35 | EpDEm | 1991.26 | ||||
Num | 4 | Q RAmdeg | 0.4 | Q DEmdeg | 1.6 | Q pmRA | 0.3 | ||||
Q pmDE | 1.5 | BTmag | 9.910 | E BTmag | 0.027 | VTmag | 9.405 | ||||
E VTmag | 0.021 | Prox | 25 | TYC | T | HIP | 60643 | ||||
CCDM | B | RAdeg | 186.43775556 | DEdeg | 44.73407194 | EpRA 1990 | 1.62 | ||||
EpDE 1990 | 1.71 | E RAdeg | 13.6 | E DEdeg | 14.4 | Posflg | D | ||||
Corr | 0.0 |
Ccdm | 12257+4444 | RComp | Comp | B | Note1 | ||||||
Note2 | Discov num | STF1642 | DRAs | DDEs | |||||||
R dRAs | Year | 1832 | Theta | 180 | Rho | 2.6 | |||||
Obs | 19 | Vmag | 9.2 | Sp | PmNote | ||||||
PmRA | PmDE | Dm number | Cat1 | ||||||||
Name2 | Cat2 | HD | M HD | ||||||||
ADS BDS | A 8546 | M ADS BDS | N IDS | IDS | 12209N4517B | ||||||
HIC | 60643 |