Coord 2000 | 20426+1244 | Discov num | STF2718 | Comp | BC | Coord arcsec 2000 | 20 42 34.05 +12 43 42.1 | ||||
Date first | 1889 | Date last | 2015 | Obs | 16 | ||||||
Pa first | 343 | Pa last | 346.1 | P.A. Now (θ) | 346.1° | ||||||
Sep first | 168.6 | Sep last | 167.259 | Sep. Now (ρ) | 167.259" | ||||||
Mag pri | 8.39 | Mag sec | 9.02 | delta mag (ΔM) | 0.63 | Spectral class | F5 (yellow-white) | ||||
Pri motion ra | -007 | Sec motion ra | +012 | ||||||||
Pri motion dec | -026 | Sec motion dec | -012 | ||||||||
Notes |
Show | name | SAO | coord | wds_name | last | obs | pa | sep | mag1 | mag2 | d_mag | orb | current |
Show | HD 197312 | 106409 | 20 42 33 +12 43 42 | STF 2718 AB | 2020 | 85 | 87 | 8.5 | 8.28 | 8.39 | 0.11 | ||
Show | 106409 | 20 42 33 +12 43 42 | STF 2718 AC | 2015 | 20 | 346 | 167.2 | 8.28 | 9.02 | 0.74 | |||
Show | 106410 | 20 42 34 +12 43 42 | STF 2718 BC | 2015 | 16 | 346 | 167.3 | 8.39 | 9.02 | 0.63 | <=== |
Constellation | Delphinus | SAO | 106410 | Tycho2 | 1097-00010-1 | Gaia DR2 | 1755224009981286272 | ||||
HD | 197313 | GC | 28856 |
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 |
20426+1244 | STF2718 | BC | 2004 | 10 | 344 | 167.0 | 8.39 | 9.02 | F5 | D | 204234.05+124342.1 |
20426+1244 | STF2718 | BC | 2009 | 13 | 343 | 168.4 | 8.39 | 9.02 | F5 | D | 204234.05+124342.1 |
20426+1244 | STF2718 | BC | 2015 | 15 | 346 | 167.3 | 8.39 | 9.02 | F5 | 204234.05+124342.1 |
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 | |
B | pa=88.6° sep=8.49" | |
C | pa=346.5° sep=166.98" | pa=343.7° sep=168.97" |
Name | HD 197312 | Coord arcsec 2000 | 204233.47+124341.9 | Mag | 8.28 | Spectral class | F5 (yellow-white) | ||||
PmRA | -4.00 | PmDE | -23.0 | SAO | 106409 | HIP | 102206 | ||||
Tycho2 | 1097-02966-1 | HD | 197312 | GC | 28855 | BD | BD+12 4440 |
Tycho2 | 1097-02966-1 | Pflag | RAmdeg | 310.63947915 | DEmdeg | 12.72824013 | |||||
PmRA | 1.2 | PmDE | -24.1 | E RAmdeg | 8 | E DEmdeg | 8 | ||||
E pmRA | 1.4 | E pmDE | 1.4 | EpRAm | 1991.31 | EpDEm | 1991.22 | ||||
Num | 5 | Q RAmdeg | 2.4 | Q DEmdeg | 1.4 | Q pmRA | 2.5 | ||||
Q pmDE | 1.3 | BTmag | 8.697 | E BTmag | 0.018 | VTmag | 8.284 | ||||
E VTmag | 0.014 | Prox | 85 | TYC | T | HIP | 102206 | ||||
CCDM | A | RAdeg | 310.63947611 | DEdeg | 12.72829611 | EpRA 1990 | 1.69 | ||||
EpDE 1990 | 1.65 | E RAdeg | 7.7 | E DEdeg | 7.5 | Posflg | |||||
Corr | 0.0 |
SAO | 106409 | DelFlag | RA1950 | PmRA1950 | -0.0011 | ||||||
DE1950 | PmDE1950 | -0.011 | Vmag | 8 | SpType | F5 | |||||
Double code | Source | 70 | CatNum | 28855 | DM | BD+12 4440 | |||||
DMcomp | BDsup | HD | 197312 | M HD | 0 | ||||||
GC | 28855 | RA1950rad | 5.41132451 | DE1950rad | 0.21901381 | PmRA2000 | -0.001 | ||||
PmDE2000 | -0.014 |
Catalog | H | HIP | 102206 | Proxy | H | RAhms | 20 42 33.47 | ||||
DEdms | +12 43 41.9 | Vmag | 7.57 | VarFlag | R Vmag | H | |||||
RAdeg | 310.639 | DEdeg | 12.7283 | AstroRef | A | Plx | 7.7 | ||||
CCDM | 20425+1245 | N CCDM | I | Nsys | 1 | Ncomp | 2 | ||||
MultFlag | C | Source | Qual | A | M HIP | AB | |||||
Theta | 87 | Rho | 8.483 | HD | 197312 | BD | BD+12 4440 | ||||
CD | CP | Dm number | +12 4440 | VIred | 0.53 | ||||||
SpType | F5+... | R SpType | Coord arcsec 2000 | 204233.47+124341.9 |
HIP | 102206 | Sn | 15 | So | 3 | Nc | 2 | ||||
RArad | 5.4216816783 | DErad | 0.2221507488 | Plx | 6.92 | PmRA | -10.98 | ||||
PmDE | -23.87 | E RArad | 1.5 | E DErad | 1.14 | E Plx | 2.3 | ||||
E pmRA | 2.37 | E pmDE | 1.4 | Hpmag | 7.6624 | E Hpmag | 0.0017 | ||||
SHp | 0.013 | VA | 0 | BV | 0.425 | E BV | 0.016 | ||||
VI | 0.49 |
Coord arcsec 2000 | 204234.05+124342.1 | Coord calc | 204234.05+124342.1 | Mag | 8.39 | Spectral class | F5 (yellow-white) | ||||
PmRA | -7.00 | PmDE | -26.0 | SAO | 106410 | Tycho2 | 1097-00010-1 | ||||
HD | 197313 | GC | 28856 | DM | BD+12 4441 | Calc delta mag | 0.11 |
Tycho2 | 1097-00010-1 | Pflag | RAmdeg | 310.64186711 | DEmdeg | 12.72835520 | |||||
PmRA | -9.5 | PmDE | -28.0 | E RAmdeg | 8 | E DEmdeg | 8 | ||||
E pmRA | 1.4 | E pmDE | 1.3 | EpRAm | 1991.24 | EpDEm | 1991.18 | ||||
Num | 6 | Q RAmdeg | 2.0 | Q DEmdeg | 1.0 | Q pmRA | 2.1 | ||||
Q pmDE | 1.1 | BTmag | 8.881 | E BTmag | 0.019 | VTmag | 8.394 | ||||
E VTmag | 0.015 | Prox | 85 | TYC | T | HIP | 102206 | ||||
CCDM | B | RAdeg | 310.64189000 | DEdeg | 12.72842000 | EpRA 1990 | 1.67 | ||||
EpDE 1990 | 1.68 | E RAdeg | 8.4 | E DEdeg | 8.2 | Posflg | |||||
Corr | -0.1 |
SAO | 106410 | DelFlag | RA1950 | PmRA1950 | -0.0024 | ||||||
DE1950 | PmDE1950 | -0.018 | Vmag | 8 | SpType | F5 | |||||
Double code | Source | 70 | CatNum | 28856 | DM | BD+12 4441 | |||||
DMcomp | BDsup | HD | 197313 | M HD | 0 | ||||||
GC | 28856 | RA1950rad | 5.41136445 | DE1950rad | 0.2190145 | PmRA2000 | -0.0023 | ||||
PmDE2000 | -0.021 |
Coord arcsec 2000 | 204230.81+124624.3 | Mag | 9.02 | PmRA | 12.00 | PmDE | -12.0 | ||||
Tycho2 | 1097-00215-1 | Calc delta mag | 0.74 | Calc coord | yes |
Tycho2 | 1097-00215-1 | Pflag | RAmdeg | 310.62757019 | DEmdeg | 12.77330158 | |||||
PmRA | 11.1 | PmDE | -12.7 | E RAmdeg | 12 | E DEmdeg | 14 | ||||
E pmRA | 1.3 | E pmDE | 1.2 | EpRAm | 1990.33 | EpDEm | 1988.88 | ||||
Num | 7 | Q RAmdeg | 0.8 | Q DEmdeg | 0.4 | Q pmRA | 0.8 | ||||
Q pmDE | 0.5 | BTmag | 11.189 | E BTmag | 0.060 | VTmag | 9.024 | ||||
E VTmag | 0.017 | Prox | 999 | TYC | T | HIP | |||||
CCDM | RAdeg | 310.62754389 | DEdeg | 12.77333139 | EpRA 1990 | 1.77 | |||||
EpDE 1990 | 1.54 | E RAdeg | 11.7 | E DEdeg | 15.4 | Posflg | |||||
Corr | -0.1 |