Coord 2000 | 10304+5621 | Discov num | STF1436 | Comp | Coord arcsec 2000 | 10 30 22.86 +56 21 20.0 | |||||
Date first | 1828 | Date last | 2016 | Obs | 27 | ||||||
Pa first | 254 | Pa last | 253.5 | P.A. Now (θ) | 253.5° | ||||||
Sep first | 12.0 | Sep last | 10.489 | Sep. Now (ρ) | 10.489" | ||||||
Mag pri | 8.78 | Mag sec | 10.39 | delta mag (ΔM) | 1.61 | Spectral class | F5 (yellow-white) | ||||
Pri motion ra | -021 | Sec motion ra | -019 | ||||||||
Pri motion dec | -028 | Sec motion dec | -026 | ||||||||
Notes | Z (Parallax indicates components are physical) |
Name | HD 90804 | Constellation | Ursa Major | SAO | 27666 | HIP | 51441 | ||||
Tycho2 | 3819-00470-1 | Gaia DR2 | 853844278744236416 | HD | 90804 | GC | 14415 | ||||
BD | BD+57 1271 | Distance | 118.48 | Distance ly | 386.48 |
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 |
10304+5621 | STF1436 | 2004 | 16 | 254 | 10.4 | 8.78 | 10.39 | F5 | ZD | 103022.86+562120.0 | |
10304+5621 | STF1436 | 2015 | 20 | 254 | 10.4 | 8.78 | 10.39 | F5 | Z | 103022.86+562120.0 | |
10304+5621 | STF1436 | 2016 | 22 | 254 | 10.5 | 8.78 | 10.39 | F5 | Z | 103022.86+562120.0 |
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=241.9° sep=6.32" |
Componente originario normalizzato | AB | Name | HD 90804 | Coord arcsec 2000 | 103022.86+562120.0 | Mag | 8.78 | ||||
Spectral class | F5 (yellow-white) | PmRA | -21.00 | PmDE | -28.0 | SAO | 27666 | ||||
HIP | 51445 | Tycho2 | 3819-00470-1 | HD | 90804 | GC | 14415 | ||||
BD | BD+57 1271 |
Tycho2 | 3819-00470-1 | Pflag | RAmdeg | 157.59523062 | DEmdeg | 56.35556410 | |||||
PmRA | -21.1 | PmDE | -25.1 | E RAmdeg | 7 | E DEmdeg | 7 | ||||
E pmRA | 1.5 | E pmDE | 1.5 | EpRAm | 1991.32 | EpDEm | 1991.27 | ||||
Num | 8 | Q RAmdeg | 0.7 | Q DEmdeg | 0.7 | Q pmRA | 0.8 | ||||
Q pmDE | 0.7 | BTmag | 9.214 | E BTmag | 0.017 | VTmag | 8.777 | ||||
E VTmag | 0.013 | Prox | 104 | TYC | T | HIP | 51445 | ||||
CCDM | A | RAdeg | 157.59531889 | DEdeg | 56.35562250 | EpRA 1990 | 1.70 | ||||
EpDE 1990 | 1.64 | E RAdeg | 6.5 | E DEdeg | 7.3 | Posflg | |||||
Corr | 0.0 |
SAO | 27666 | DelFlag | RA1950 | PmRA1950 | -0.0007 | ||||||
DE1950 | PmDE1950 | -0.028 | Vmag | 8.7 | SpType | F5 | |||||
Double code | Source | 70 | CatNum | 14415 | DM | BD+57 1271 | |||||
DMcomp | BDsup | HD | 90804 | M HD | 0 | ||||||
GC | 14415 | RA1950rad | 2.73654219 | DE1950rad | 0.98807432 | PmRA2000 | -0.0005 | ||||
PmDE2000 | -0.024 |
Catalog | H | HIP | 51445 | Proxy | RAhms | 10 30 22.88 | |||||
DEdms | +56 21 20.2 | Vmag | 8.73 | VarFlag | R Vmag | H | |||||
RAdeg | 157.595 | DEdeg | 56.3556 | AstroRef | A | Plx | 9.42 | ||||
CCDM | 10304+5621 | N CCDM | I | Nsys | 2 | Ncomp | 1 | ||||
MultFlag | C | Source | P | Qual | A | M HIP | |||||
Theta | Rho | HD | 90804 | BD | BD+57 1271 | ||||||
CD | CP | Dm number | +57 1271 | VIred | 0.45 | ||||||
SpType | F5 | R SpType | Coord arcsec 2000 | 103022.88+562120.2 |
HIP | 51445 | Sn | 95 | So | 3 | Nc | 1 | ||||
RArad | 2.7505572472 | DErad | 0.9835911927 | Plx | 10.04 | PmRA | -22.25 | ||||
PmDE | -30.96 | E RArad | 1.03 | E DErad | 0.87 | E Plx | 1.55 | ||||
E pmRA | 1.47 | E pmDE | 0.93 | Hpmag | 8.8246 | E Hpmag | 0.005 | ||||
SHp | 0.026 | VA | 0 | BV | 0.407 | E BV | 0.018 | ||||
VI | 0.47 |
Ccdm | 10304+5621 | RComp | Comp | A | Note1 | ||||||
Note2 | Discov num | DRAs | -1.12 | DDEs | 20.1 | ||||||
R dRAs | 10 | Year | Theta | Rho | |||||||
Obs | 2 | Vmag | 9.2 | Sp | F5 | PmNote | * | ||||
PmRA | -17 | PmDE | -24 | Dm number | +57 1271 | Cat1 | BD | ||||
Name2 | +56 795 | Cat2 | AGK2/3 | HD | 90804 | M HD | |||||
ADS BDS | A 7797 | M ADS BDS | N IDS | IDS | 10239N5652A | ||||||
HIC | 51445 |
Componente originario normalizzato | AB | Coord arcsec 2000 | 103022.19+562117.0 | Mag | 10.39 | PmRA | -19.00 | ||||
PmDE | -26.0 | HIP | 51441 | Calc delta mag | 1.61 | Calc coord | yes |
Catalog | H | HIP | 51441 | Proxy | RAhms | 10 30 21.68 | |||||
DEdms | +56 21 17.3 | Vmag | 10.44 | VarFlag | R Vmag | H | |||||
RAdeg | 157.59 | DEdeg | 56.3548 | AstroRef | B | Plx | 10.55 | ||||
CCDM | 10304+5621 | N CCDM | I | Nsys | 2 | Ncomp | 1 | ||||
MultFlag | C | Source | I | Qual | A | M HIP | |||||
Theta | Rho | HD | BD | ||||||||
CD | CP | Dm number | VIred | 0.7 | |||||||
SpType | R SpType | Coord arcsec 2000 | 103021.68+562117.3 |
HIP | 51441 | Sn | 95 | So | 3 | Nc | 1 | ||||
RArad | 2.7504699024 | DErad | 0.9835768768 | Plx | 8.44 | PmRA | -20.76 | ||||
PmDE | -33.05 | E RArad | 2.55 | E DErad | 1.96 | E Plx | 3.43 | ||||
E pmRA | 3.3 | E pmDE | 2.15 | Hpmag | 10.6142 | E Hpmag | 0.0221 | ||||
SHp | 0 | VA | 0 | BV | 0.662 | E BV | 0.079 | ||||
VI | 0.72 |
Ccdm | 10304+5621 | RComp | Comp | B | Note1 | ||||||
Note2 | Discov num | STF1436 | DRAs | -2.34 | DDEs | 17.1 | |||||
R dRAs | 90 | Year | 1831 | Theta | 252 | Rho | 10.5 | ||||
Obs | 5 | Vmag | 9.9 | Sp | PmNote | * | |||||
PmRA | -18 | PmDE | -23 | Dm number | Cat1 | ||||||
Name2 | Cat2 | HD | M HD | ||||||||
ADS BDS | A 7797 | M ADS BDS | N IDS | IDS | 10239N5652B | ||||||
HIC | 51441 |