Coord 2000 | 15261+1810 | Discov num | STF1940 | Comp | Coord arcsec 2000 | 15 26 08.92 +18 10 16.2 | |||||
Date first | 1830 | Date last | 2018 | Obs | 73 | ||||||
Pa first | 326 | Pa last | 330.8 | P.A. Now (θ) | 330.8° | ||||||
Sep first | 1.5 | Sep last | 0.344 | Sep. Now (ρ) | 0.344" | ||||||
Mag pri | 8.46 | Mag sec | 8.88 | delta mag (ΔM) | 0.42 | Spectral class | F8 (yellow-white) | ||||
Pri motion ra | +014 | Sec motion ra | +014 | ||||||||
Pri motion dec | -008 | Sec motion dec | -008 | ||||||||
Notes | L (Linear solution) |
Name | HD 137557 | Constellation | Serpens | SAO | 101554 | HIP | 75560 | ||||
Tycho2 | 1490-00175-1 | Gaia DR2 | 1208848889403382144 | HD | 137557 | GC | 20752 | ||||
BD | BD+18 3019 | Distance | 263.85 | Distance ly | 860.68 |
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 |
15261+1810 | STF1940 | 2005 | 63 | 329 | 0.5 | 8.46 | 8.88 | F8 | LD | 152608.92+181016.2 | |
15261+1810 | STF1940 | 2010 | 65 | 330 | 0.4 | 8.46 | 8.88 | F8 | LD | 152608.92+181016.2 | |
15261+1810 | STF1940 | 2011 | 66 | 330 | 0.4 | 8.46 | 8.88 | F8 | LD | 152608.92+181016.2 | |
15261+1810 | STF1940 | 2018 | 71 | 332 | 0.3 | 8.46 | 8.88 | F8 | L | 152608.92+181016.2 |
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=332.0° sep=0.34" |
Componente originario normalizzato | AB | Name | HD 137557 | Coord arcsec 2000 | 152608.92+181016.2 | Mag | 8.46 | ||||
Spectral class | F8 (yellow-white) | PmRA | 14.00 | PmDE | -8.0 | SAO | 101554 | ||||
HIP | 75560 | Tycho2 | 1490-00175-1 | HD | 137557 | GC | 20752 | ||||
BD | BD+18 3019 |
Tycho2 | 1490-00175-1 | Pflag | RAmdeg | 231.53713227 | DEmdeg | 18.17123115 | |||||
PmRA | 14.1 | PmDE | -7.8 | E RAmdeg | 6 | E DEmdeg | 6 | ||||
E pmRA | 1.2 | E pmDE | 1.1 | EpRAm | 1991.27 | EpDEm | 1991.16 | ||||
Num | 12 | Q RAmdeg | 1.0 | Q DEmdeg | 1.2 | Q pmRA | 1.0 | ||||
Q pmDE | 1.3 | BTmag | 8.599 | E BTmag | 0.017 | VTmag | 7.988 | ||||
E VTmag | 0.012 | Prox | 999 | TYC | T | HIP | 75560 | ||||
CCDM | AB | RAdeg | 231.53709778 | DEdeg | 18.17124944 | EpRA 1990 | 1.71 | ||||
EpDE 1990 | 1.68 | E RAdeg | 5.6 | E DEdeg | 5.8 | Posflg | P | ||||
Corr | 0.1 |
SAO | 101554 | DelFlag | RA1950 | PmRA1950 | 0.0012 | ||||||
DE1950 | PmDE1950 | -0.025 | Vmag | 7.8 | SpType | F8 | |||||
Double code | Source | 70 | CatNum | 20752 | DM | BD+18 3019 | |||||
DMcomp | BDsup | HD | 137557 | M HD | 0 | ||||||
GC | 20752 | RA1950rad | 4.03115022 | DE1950rad | 0.32018638 | PmRA2000 | 0.0012 | ||||
PmDE2000 | -0.021 |
Catalog | H | HIP | 75560 | Proxy | H | RAhms | 15 26 08.91 | ||||
DEdms | +18 10 16.3 | Vmag | 7.87 | VarFlag | R Vmag | G | |||||
RAdeg | 231.537 | DEdeg | 18.1712 | AstroRef | A | Plx | 6.33 | ||||
CCDM | 15261+1810 | N CCDM | I | Nsys | 1 | Ncomp | 2 | ||||
MultFlag | C | Source | Qual | A | M HIP | AB | |||||
Theta | 327 | Rho | 0.555 | HD | 137557 | BD | BD+18 3019 | ||||
CD | CP | Dm number | +18 3019 | VIred | 0.68 | ||||||
SpType | F8 | R SpType | Coord arcsec 2000 | 152608.91+181016.3 |
HIP | 75560 | Sn | 15 | So | 3 | Nc | 2 | ||||
RArad | 4.0410853494 | DErad | 0.3171472092 | Plx | 3.79 | PmRA | 11.3 | ||||
PmDE | -4.84 | E RArad | 1.21 | E DErad | 1.69 | E Plx | 1.4 | ||||
E pmRA | 1.35 | E pmDE | 1.95 | Hpmag | 7.9867 | E Hpmag | 0.0017 | ||||
SHp | 0.016 | VA | 0 | BV | 0.606 | E BV | 0.015 | ||||
VI | 0.68 |
Ccdm | 15261+1810 | RComp | Comp | A | Note1 | ||||||
Note2 | Discov num | DRAs | 2.90 | DDEs | 15.7 | ||||||
R dRAs | 10 | Year | Theta | Rho | |||||||
Obs | 2 | Vmag | 8.3 | Sp | F8 | PmNote | * | ||||
PmRA | 10 | PmDE | -24 | Dm number | +18 3019 | Cat1 | BD | ||||
Name2 | +18 1394 | Cat2 | AGK2/3 | HD | 137557 | M HD | |||||
ADS BDS | A 9634 | M ADS BDS | N IDS | IDS | 15216N1831A | ||||||
HIC | 75560 |
Componente originario normalizzato | AB | Coord arcsec 2000 | 152608.91+181016.5 | Mag | 8.88 | PmRA | 14.00 | ||||
PmDE | -8.0 | Calc delta mag | 0.42 | Calc coord | yes |
Ccdm | 15261+1810 | RComp | Comp | B | Note1 | ||||||
Note2 | Discov num | STF1940 | DRAs | DDEs | |||||||
R dRAs | Year | 1830 | Theta | 324 | Rho | 1.0 | |||||
Obs | 23 | Vmag | 8.8 | Sp | PmNote | ||||||
PmRA | PmDE | Dm number | Cat1 | ||||||||
Name2 | Cat2 | HD | M HD | ||||||||
ADS BDS | A 9634 | M ADS BDS | N IDS | IDS | 15216N1831B | ||||||
HIC | 75560 |