Coord 2000 | 16396+2300 | Discov num | STF2079 | Comp | Coord arcsec 2000 | 16 39 36.33 +23 00 06.1 | |||||
Date first | 1830 | Date last | 2017 | Obs | 78 | ||||||
Pa first | 91 | Pa last | 91.2 | P.A. Now (θ) | 91.2° | ||||||
Sep first | 18.0 | Sep last | 16.739 | Sep. Now (ρ) | 16.739" | ||||||
Mag pri | 7.56 | Mag sec | 8.13 | delta mag (ΔM) | 0.57 | Spectral class | F0 (yellow-white) | ||||
Pri motion ra | +031 | Sec motion ra | +031 | ||||||||
Pri motion dec | -026 | Sec motion dec | -027 | ||||||||
Notes | T (Parallax indicates physical) |
Name | HD 150340 | Constellation | Hercules | SAO | 84521 | HIP | 81575 | ||||
Tycho2 | 2045-01481-1 | Gaia DR2 | 1299581894599703040 | HD | 150340 | GC | 22415 | ||||
ADS | 10146 | BD | BD+23 2970 | Distance | 414.94 | Distance ly | 1353.53 |
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 |
16396+2300 | STF2079 | 2007 | 60 | 90 | 16.7 | 7.56 | 8.13 | F0 | ZD | 163936.33+230006.1 | |
16396+2300 | STF2079 | 2011 | 62 | 92 | 16.8 | 7.56 | 8.13 | F0 | ZD | 163936.33+230006.1 | |
16396+2300 | STF2079 | 2012 | 64 | 91 | 16.8 | 7.56 | 8.13 | F0 | ZD | 163936.33+230006.1 | |
16396+2300 | STF2079 | 2017 | 68 | 92 | 16.8 | 7.56 | 8.13 | F0 | Z | 163936.33+230006.1 |
Show | date | username | difficulty | separation | pa_estim | interest ⇓ | notes |
Show | 22/06/29 | daedalus1 | mean difficulty | separated | 91 | Seeing Pickering 5, poor. Measures: theta 091, rho 16.8 +/- 0.632. |
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=91.3° sep=15.41" |
Componente originario normalizzato | AB | Name | HD 150340 | Coord arcsec 2000 | 163936.33+230006.1 | Mag | 7.56 | ||||
Spectral class | F0 (yellow-white) | PmRA | 31.00 | PmDE | -26.0 | SAO | 84521 | ||||
HIP | 81575 | Tycho2 | 2045-01481-1 | HD | 150340 | GC | 22415 | ||||
ADS | 10146 | BD | BD+23 2970 |
Tycho2 | 2045-01481-1 | Pflag | RAmdeg | 249.90136780 | DEmdeg | 23.00168587 | |||||
PmRA | 31.3 | PmDE | -26.4 | E RAmdeg | 5 | E DEmdeg | 5 | ||||
E pmRA | 1.0 | E pmDE | 1.0 | EpRAm | 1991.38 | EpDEm | 1991.51 | ||||
Num | 13 | Q RAmdeg | 1.2 | Q DEmdeg | 1.2 | Q pmRA | 1.1 | ||||
Q pmDE | 1.1 | BTmag | 7.958 | E BTmag | 0.016 | VTmag | 7.559 | ||||
E VTmag | 0.011 | Prox | 168 | TYC | T | HIP | 81575 | ||||
CCDM | A | RAdeg | 249.90128944 | DEdeg | 23.00174500 | EpRA 1990 | 1.73 | ||||
EpDE 1990 | 1.89 | E RAdeg | 5.0 | E DEdeg | 4.6 | Posflg | |||||
Corr | -0.1 |
SAO | 84521 | DelFlag | RA1950 | PmRA1950 | 0.0017 | ||||||
DE1950 | PmDE1950 | -0.019 | Vmag | 7 | SpType | A5 | |||||
Double code | Source | 70 | CatNum | 22415 | DM | BD+23 2970 | |||||
DMcomp | A | BDsup | HD | 150340 | M HD | 0 | |||||
GC | 22415 | RA1950rad | 4.35234694 | DE1950rad | 0.40315521 | PmRA2000 | 0.0018 | ||||
PmDE2000 | -0.017 |
Catalog | H | HIP | 81575 | Proxy | RAhms | 16 39 36.31 | |||||
DEdms | +23 00 06.3 | Vmag | 7.54 | VarFlag | R Vmag | H | |||||
RAdeg | 249.901 | DEdeg | 23.0017 | AstroRef | A | Plx | 6.24 | ||||
CCDM | 16396+2300 | N CCDM | I | Nsys | 2 | Ncomp | 1 | ||||
MultFlag | C | Source | P | Qual | B | M HIP | |||||
Theta | Rho | HD | 150340 | BD | BD+23 2970 | ||||||
CD | CP | Dm number | +23 2970 | VIred | 0.41 | ||||||
SpType | F0 | R SpType | Coord arcsec 2000 | 163936.31+230006.3 |
HIP | 81575 | Sn | 95 | So | 3 | Nc | 1 | ||||
RArad | 4.3616002877 | DErad | 0.4014562582 | Plx | 2.41 | PmRA | 34.88 | ||||
PmDE | -22.14 | E RArad | 2.57 | E DErad | 2.51 | E Plx | 3.98 | ||||
E pmRA | 2.28 | E pmDE | 2.74 | Hpmag | 7.6322 | E Hpmag | 0.0274 | ||||
SHp | 0.136 | VA | 0 | BV | 0.379 | E BV | 0.011 | ||||
VI | 0.44 |
Ccdm | 16396+2300 | RComp | Comp | A | Note1 | ||||||
Note2 | Discov num | DRAs | 0.34 | DDEs | 7.0 | ||||||
R dRAs | 10 | Year | Theta | Rho | |||||||
Obs | 2 | Vmag | 7.4 | Sp | F0 | PmNote | * | ||||
PmRA | 32 | PmDE | -7 | Dm number | +23 2970 | Cat1 | BD | ||||
Name2 | +23 1557 | Cat2 | AGK2/3 | HD | 150340 | M HD | |||||
ADS BDS | A10146 | M ADS BDS | N IDS | IDS | 16354N2312A | ||||||
HIC | 81575 |
Componente originario normalizzato | AB | Coord arcsec 2000 | 163937.45+230005.7 | Mag | 8.13 | PmRA | 31.00 | ||||
PmDE | -27.0 | HIP | 81577 | Tycho2 | 2045-01482-1 | Calc delta mag | 0.57 | ||||
Calc coord | yes |
Tycho2 | 2045-01482-1 | Pflag | RAmdeg | 249.90644852 | DEmdeg | 23.00164543 | |||||
PmRA | 30.5 | PmDE | -27.4 | E RAmdeg | 6 | E DEmdeg | 6 | ||||
E pmRA | 1.3 | E pmDE | 1.2 | EpRAm | 1991.52 | EpDEm | 1991.65 | ||||
Num | 4 | Q RAmdeg | 0.5 | Q DEmdeg | 1.0 | Q pmRA | 0.5 | ||||
Q pmDE | 1.0 | BTmag | 8.513 | E BTmag | 0.016 | VTmag | 8.127 | ||||
E VTmag | 0.012 | Prox | 168 | TYC | T | HIP | 81577 | ||||
CCDM | B | RAdeg | 249.90637250 | DEdeg | 23.00170722 | EpRA 1990 | 1.74 | ||||
EpDE 1990 | 1.89 | E RAdeg | 6.2 | E DEdeg | 5.7 | Posflg | |||||
Corr | 0.0 |
Catalog | H | HIP | 81577 | Proxy | RAhms | 16 39 37.53 | |||||
DEdms | +23 00 06.1 | Vmag | 8.25 | VarFlag | R Vmag | G | |||||
RAdeg | 249.906 | DEdeg | 23.0017 | AstroRef | B | Plx | 6.46 | ||||
CCDM | 16396+2300 | N CCDM | I | Nsys | 2 | Ncomp | 1 | ||||
MultFlag | C | Source | I | Qual | B | M HIP | |||||
Theta | Rho | HD | BD | ||||||||
CD | CP | Dm number | VIred | 0.43 | |||||||
SpType | A5 | R SpType | Coord arcsec 2000 | 163937.53+230006.1 |
HIP | 81577 | Sn | 95 | So | 3 | Nc | 1 | ||||
RArad | 4.3616888754 | DErad | 0.4014555968 | Plx | -4.03 | PmRA | 42.92 | ||||
PmDE | -19.37 | E RArad | 6.32 | E DErad | 5.22 | E Plx | 8.98 | ||||
E pmRA | 5.55 | E pmDE | 5.58 | Hpmag | 8.3636 | E Hpmag | 0.0436 | ||||
SHp | 0 | VA | 0 | BV | 0.366 | E BV | 0.015 | ||||
VI | 0.43 |
Ccdm | 16396+2300 | RComp | Comp | B | Note1 | ||||||
Note2 | Discov num | STF2079 | DRAs | 1.56 | DDEs | 6.5 | |||||
R dRAs | 91 | Year | 1831 | Theta | 091 | Rho | 16.8 | ||||
Obs | 18 | Vmag | 8.2 | Sp | PmNote | * | |||||
PmRA | 32 | PmDE | -11 | Dm number | Cat1 | ||||||
Name2 | +23 1558 | Cat2 | AGK2/3 | HD | M HD | ||||||
ADS BDS | A10146 | M ADS BDS | N IDS | IDS | 16354N2312B | ||||||
HIC | 81577 |