Coord 2000 | 21197+0931 | Discov num | STF2786 | Comp | Coord arcsec 2000 | 21 19 39.36 +09 31 30.3 | |||||
Date first | 1825 | Date last | 2016 | Obs | 97 | ||||||
Pa first | 182 | Pa last | 188 | P.A. Now (θ) | 188° | ||||||
Sep first | 2.4 | Sep last | 2.817 | Sep. Now (ρ) | 2.817" | ||||||
Mag pri | 7.49 | Mag sec | 8.20 | delta mag (ΔM) | 0.71 | Spectral class | A3IV (white) | ||||
Pri motion ra | +021 | Sec motion ra | +021 | ||||||||
Pri motion dec | -014 | Sec motion dec | -014 | ||||||||
Notes |
Name | HD 203067 | Constellation | Equuleus | SAO | 126707 | HIP | 105295 | ||||
Tycho2 | 1110-01928-2 | Gaia DR2 | 1743630999899784320 | HD | 203067 | GC | 29841 | ||||
BD | BD+08 4651 | Distance | 185.53 | Distance ly | 605.2 |
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 |
21197+0931 | STF2786 | 2004 | 100 | 189 | 2.7 | 7.49 | 8.20 | A3IV | 211939.36+093130.3 | ||
21197+0931 | STF2786 | 2008 | 101 | 188 | 2.8 | 7.49 | 8.20 | A3IV | 211939.36+093130.3 | ||
21197+0931 | STF2786 | 2011 | 104 | 189 | 2.7 | 7.49 | 8.20 | A3IV | 211939.36+093130.3 | ||
21197+0931 | STF2786 | 2016 | 96 | 189 | 2.8 | 7.49 | 8.20 | A3IV | 211939.36+093130.3 |
Show | date | username | difficulty | separation | pa_estim | interest | notes |
Show | 22/09/02 | daedalus1 | mean difficulty | separated | 189 | Seeing: Pickering 6, good. Measures: theta 189, rho 2.79 +/- 0.096. Primary noticeably brighter. |
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=187.9° sep=2.82" |
Componente originario normalizzato | AB | Name | HD 203067 | Coord arcsec 2000 | 211939.36+093130.3 | Mag | 7.49 | ||||
Spectral class | A3IV (white) | PmRA | 21.00 | PmDE | -14.0 | SAO | 126707 | ||||
HIP | 105295 | Tycho2 | 1110-01928-2 | HD | 203067 | GC | 29841 | ||||
BD | BD+08 4651 |
Tycho2 | 1110-01928-2 | Pflag | P | RAmdeg | 319.91398032 | DEmdeg | 9.52509650 | ||||
PmRA | 20.4 | PmDE | -13.3 | E RAmdeg | 5 | E DEmdeg | 6 | ||||
E pmRA | 2.1 | E pmDE | 2.0 | EpRAm | 1991.54 | EpDEm | 1991.28 | ||||
Num | 4 | Q RAmdeg | 0.2 | Q DEmdeg | 1.0 | Q pmRA | 0.3 | ||||
Q pmDE | 1.1 | BTmag | 7.665 | E BTmag | 0.016 | VTmag | 7.491 | ||||
E VTmag | 0.012 | Prox | 27 | TYC | T | HIP | 105295 | ||||
CCDM | A | RAdeg | 319.91396083 | DEdeg | 9.52532528 | EpRA 1990 | 1.61 | ||||
EpDE 1990 | 1.39 | E RAdeg | 4.8 | E DEdeg | 5.6 | Posflg | D | ||||
Corr | -0.2 |
SAO | 126707 | DelFlag | RA1950 | PmRA1950 | 0.0016 | ||||||
DE1950 | PmDE1950 | -0.001 | Vmag | 6.9 | SpType | A2 | |||||
Double code | Source | 70 | CatNum | 29841 | DM | BD+08 4651 | |||||
DMcomp | BDsup | HD | 203067 | M HD | 0 | ||||||
GC | 29841 | RA1950rad | 5.57288599 | DE1950rad | 0.16254833 | PmRA2000 | 0.0017 | ||||
PmDE2000 | -0.005 |
Catalog | H | HIP | 105295 | Proxy | H | RAhms | 21 19 39.35 | ||||
DEdms | +09 31 31.2 | Vmag | 6.99 | VarFlag | R Vmag | H | |||||
RAdeg | 319.914 | DEdeg | 9.52533 | AstroRef | A | Plx | 4.7 | ||||
CCDM | 21197+0931 | N CCDM | I | Nsys | 1 | Ncomp | 2 | ||||
MultFlag | C | Source | Qual | A | M HIP | AB | |||||
Theta | 188 | Rho | 2.735 | HD | 203067 | BD | BD+08 4651 | ||||
CD | CP | Dm number | +08 4651 | VIred | 0.13 | ||||||
SpType | A2 | R SpType | Coord arcsec 2000 | 211939.35+093131.2 |
HIP | 105295 | Sn | 15 | So | 3 | Nc | 2 | ||||
RArad | 5.5835518756 | DErad | 0.1662483019 | Plx | 5.39 | PmRA | 22.39 | ||||
PmDE | -12.92 | E RArad | 0.88 | E DErad | 0.58 | E Plx | 0.92 | ||||
E pmRA | 1.32 | E pmDE | 0.68 | Hpmag | 7.0528 | E Hpmag | 0.001 | ||||
SHp | 0.009 | VA | 0 | BV | 0.186 | E BV | 0.017 | ||||
VI | 0.2 |
Ccdm | 21197+0931 | RComp | Comp | A | Note1 | ||||||
Note2 | Discov num | DRAs | -2.66 | DDEs | 29.2 | ||||||
R dRAs | 10 | Year | Theta | Rho | |||||||
Obs | 2 | Vmag | 7.2 | Sp | A2 | PmNote | * | ||||
PmRA | 21 | PmDE | -28 | Dm number | +08 4651 | Cat1 | BD | ||||
Name2 | +09 2968 | Cat2 | AGK2/3 | HD | 203067 | M HD | |||||
ADS BDS | A14856 | M ADS BDS | N IDS | IDS | 21148N0906A | ||||||
HIC | 105295 |
Componente originario normalizzato | AB | Coord arcsec 2000 | 211939.33+093127.5 | Mag | 8.2 | PmRA | 21.00 | ||||
PmDE | -14.0 | Tycho2 | 1110-01928-1 | Calc delta mag | 0.71 | Calc coord | yes |
Tycho2 | 1110-01928-1 | Pflag | P | RAmdeg | 319.91398032 | DEmdeg | 9.52509650 | ||||
PmRA | 20.4 | PmDE | -13.3 | E RAmdeg | 5 | E DEmdeg | 6 | ||||
E pmRA | 2.1 | E pmDE | 2.0 | EpRAm | 1991.54 | EpDEm | 1991.28 | ||||
Num | 4 | Q RAmdeg | 0.2 | Q DEmdeg | 1.0 | Q pmRA | 0.3 | ||||
Q pmDE | 1.1 | BTmag | 8.372 | E BTmag | 0.017 | VTmag | 8.201 | ||||
E VTmag | 0.014 | Prox | 27 | TYC | T | HIP | 105295 | ||||
CCDM | B | RAdeg | 319.91385167 | DEdeg | 9.52457611 | EpRA 1990 | 1.62 | ||||
EpDE 1990 | 1.45 | E RAdeg | 6.5 | E DEdeg | 7.7 | Posflg | D | ||||
Corr | -0.1 |
Ccdm | 21197+0931 | RComp | Comp | B | Note1 | ||||||
Note2 | Discov num | STF2786 | DRAs | DDEs | |||||||
R dRAs | Year | 1831 | Theta | 185 | Rho | 2.5 | |||||
Obs | 99 | Vmag | 8.3 | Sp | PmNote | ||||||
PmRA | PmDE | Dm number | Cat1 | ||||||||
Name2 | Cat2 | HD | M HD | ||||||||
ADS BDS | A14856 | M ADS BDS | N IDS | IDS | 21148N0906B | ||||||
HIC | 105295 |