Coord 2000 | 20104+4949 | Discov num | STF2648 | Comp | Coord arcsec 2000 | 20 10 23.11 +49 49 16.1 | |||||
Date first | 1828 | Date last | 2020 | Obs | 37 | ||||||
Pa first | 117 | Pa last | 117.5 | P.A. Now (θ) | 117.5° | ||||||
Sep first | 5.0 | Sep last | 6.684 | Sep. Now (ρ) | 6.684" | ||||||
Mag pri | 8.11 | Mag sec | 9.59 | delta mag (ΔM) | 1.48 | Spectral class | F5 (yellow-white) | ||||
Pri motion ra | +010 | Sec motion ra | +010 | ||||||||
Pri motion dec | +043 | Sec motion dec | +042 | ||||||||
Notes |
Name | HD 191974 | Constellation | Cygnus | SAO | 49271 | HIP | 99388 | ||||
Tycho2 | 3567-01155-1 | Gaia DR2 | 2087620020176419072 | HD | 191974 | GC | 28015 | ||||
BD | BD+49 3212 | Distance | 91.91 | Distance ly | 299.81 |
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 |
20104+4949 | STF2648 | 2008 | 24 | 117 | 6.8 | 8.11 | 9.59 | F5 | D | 201023.11+494916.1 | |
20104+4949 | STF2648 | 2018 | 29 | 118 | 6.7 | 8.11 | 9.59 | F5 | 201023.11+494916.1 | ||
20104+4949 | STF2648 | 2020 | 36 | 118 | 6.7 | 8.11 | 9.59 | F5 | 201023.11+494916.1 |
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=128.9° sep=4.91" |
Componente originario normalizzato | AB | Name | HD 191974 | Coord arcsec 2000 | 201023.11+494916.1 | Mag | 8.11 | ||||
Spectral class | F5 (yellow-white) | PmRA | 10.00 | PmDE | 43.0 | SAO | 49271 | ||||
HIP | 99388 | Tycho2 | 3567-01155-1 | HD | 191974 | GC | 28015 | ||||
BD | BD+49 3212 |
Tycho2 | 3567-01155-1 | Pflag | RAmdeg | 302.59629481 | DEmdeg | 49.82112847 | |||||
PmRA | 12.3 | PmDE | 42.0 | E RAmdeg | 6 | E DEmdeg | 6 | ||||
E pmRA | 1.5 | E pmDE | 1.5 | EpRAm | 1991.53 | EpDEm | 1991.50 | ||||
Num | 5 | Q RAmdeg | 0.8 | Q DEmdeg | 1.2 | Q pmRA | 0.9 | ||||
Q pmDE | 1.1 | BTmag | 8.563 | E BTmag | 0.017 | VTmag | 8.112 | ||||
E VTmag | 0.012 | Prox | 66 | TYC | T | HIP | 99388 | ||||
CCDM | A | RAdeg | 302.59625083 | DEdeg | 49.82103167 | EpRA 1990 | 1.72 | ||||
EpDE 1990 | 1.69 | E RAdeg | 5.5 | E DEdeg | 5.8 | Posflg | |||||
Corr | 0.0 |
SAO | 49271 | DelFlag | RA1950 | PmRA1950 | 0.0015 | ||||||
DE1950 | PmDE1950 | 0.059 | Vmag | 8.1 | SpType | F5 | |||||
Double code | Source | 70 | CatNum | 28015 | DM | BD+49 3212 | |||||
DMcomp | BDsup | HD | 191974 | M HD | 0 | ||||||
GC | 28015 | RA1950rad | 5.27495906 | DE1950rad | 0.86693224 | PmRA2000 | 0.0019 | ||||
PmDE2000 | 0.057 |
Catalog | H | HIP | 99388 | Proxy | H | RAhms | 20 10 23.10 | ||||
DEdms | +49 49 15.7 | Vmag | 7.84 | VarFlag | R Vmag | H | |||||
RAdeg | 302.596 | DEdeg | 49.821 | AstroRef | A | Plx | 10.79 | ||||
CCDM | 20104+4949 | N CCDM | I | Nsys | 1 | Ncomp | 2 | ||||
MultFlag | C | Source | Qual | A | M HIP | AB | |||||
Theta | 117 | Rho | 6.64 | HD | 191974 | BD | BD+49 3212 | ||||
CD | CP | Dm number | +49 3212 | VIred | 0.43 | ||||||
SpType | F5... | R SpType | Coord arcsec 2000 | 201023.10+494915.7 |
HIP | 99388 | Sn | 15 | So | 3 | Nc | 2 | ||||
RArad | 5.2813008571 | DErad | 0.8695409238 | Plx | 10.88 | PmRA | 11.29 | ||||
PmDE | 42.9 | E RArad | 0.6 | E DErad | 0.63 | E Plx | 0.73 | ||||
E pmRA | 0.66 | E pmDE | 0.7 | Hpmag | 7.9473 | E Hpmag | 0.0009 | ||||
SHp | 0.012 | VA | 0 | BV | 0.483 | E BV | 0.014 | ||||
VI | 0.55 |
Ccdm | 20104+4949 | RComp | Comp | A | Note1 | ||||||
Note2 | Discov num | DRAs | -0.87 | DDEs | 17.6 | ||||||
R dRAs | 10 | Year | Theta | Rho | |||||||
Obs | 2 | Vmag | 8.1 | Sp | F5 | PmNote | * | ||||
PmRA | 14 | PmDE | 58 | Dm number | +49 3212 | Cat1 | BD | ||||
Name2 | 49271 | Cat2 | SAO | HD | 191974 | M HD | |||||
ADS BDS | A13471 | M ADS BDS | N IDS | IDS | 20075N4931A | ||||||
HIC | 99388 |
Componente originario normalizzato | AB | Coord arcsec 2000 | 201023.51+494913.0 | Mag | 9.59 | PmRA | 10.00 | ||||
PmDE | 42.0 | Calc delta mag | 1.48 | Calc coord | yes |
Ccdm | 20104+4949 | RComp | Comp | B | Note1 | ||||||
Note2 | Discov num | STF2648 | DRAs | DDEs | |||||||
R dRAs | Year | 1831 | Theta | 117 | Rho | 6.4 | |||||
Obs | 9 | Vmag | 9.4 | Sp | PmNote | ||||||
PmRA | PmDE | Dm number | Cat1 | ||||||||
Name2 | Cat2 | HD | M HD | ||||||||
ADS BDS | A13471 | M ADS BDS | N IDS | IDS | 20075N4931B | ||||||
HIC | 99388 |