Coord 2000 | 12168+7009 | Discov num | STF1626 | Comp | Coord arcsec 2000 | 12 16 47.11 +70 08 45.7 | |||||
Date first | 1831 | Date last | 2017 | Obs | 34 | ||||||
Pa first | 8 | Pa last | 2 | P.A. Now (θ) | 2° | ||||||
Sep first | 2.2 | Sep last | 2.133 | Sep. Now (ρ) | 2.133" | ||||||
Mag pri | 9.37 | Mag sec | 9.55 | delta mag (ΔM) | 0.18 | Spectral class | G0 (yellow) | ||||
Pri motion ra | +048 | Sec motion ra | |||||||||
Pri motion dec | -011 | Sec motion dec | |||||||||
Notes |
Name | HD 106831 | Constellation | Draco | SAO | 7536 | HIP | 59878 | ||||
Tycho2 | 4397-01500-1 | Gaia DR2 | 1683862441160955008 | HD | 106831 | GC | 16761 | ||||
BD | BD+70 690 | Distance | 157.98 | Distance ly | 515.33 |
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 |
12168+7009 | STF1626 | 2005 | 33 | 5 | 2.1 | 9.37 | 9.55 | G0 | D | 121647.11+700845.7 | |
12168+7009 | STF1626 | 2017 | 31 | 2 | 2.1 | 9.37 | 9.55 | G0 | 121647.11+700845.7 |
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. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
|
A | |
B | pa=0.7° sep=2.13" |
Componente originario normalizzato | AB | Name | HD 106831 | Coord arcsec 2000 | 121647.11+700845.7 | Mag | 9.37 | ||||
Spectral class | G0 (yellow) | PmRA | 48.00 | PmDE | -11.0 | SAO | 7536 | ||||
HIP | 59878 | Tycho2 | 4397-01500-1 | HD | 106831 | GC | 16761 | ||||
BD | BD+70 690 |
Tycho2 | 4397-01500-1 | Pflag | RAmdeg | 184.19628528 | DEmdeg | 70.14602783 | |||||
PmRA | 47.7 | PmDE | -10.8 | E RAmdeg | 11 | E DEmdeg | 11 | ||||
E pmRA | 1.4 | E pmDE | 1.4 | EpRAm | 1991.00 | EpDEm | 1991.04 | ||||
Num | 4 | Q RAmdeg | 0.5 | Q DEmdeg | 1.0 | Q pmRA | 0.6 | ||||
Q pmDE | 1.1 | BTmag | 9.935 | E BTmag | 0.022 | VTmag | 9.373 | ||||
E VTmag | 0.017 | Prox | 21 | TYC | T | HIP | 59878 | ||||
CCDM | A | RAdeg | 184.19595944 | DEdeg | 70.14605278 | EpRA 1990 | 1.66 | ||||
EpDE 1990 | 1.66 | E RAdeg | 10.7 | E DEdeg | 10.7 | Posflg | D | ||||
Corr | 0.0 |
SAO | 7536 | DelFlag | RA1950 | PmRA1950 | 0.0088 | ||||||
DE1950 | PmDE1950 | -0.007 | Vmag | 8.2 | SpType | G0 | |||||
Double code | Source | 70 | CatNum | 16761 | DM | BD+70 690 | |||||
DMcomp | BDsup | HD | 106831 | M HD | 0 | ||||||
GC | 16761 | RA1950rad | 3.20453121 | DE1950rad | 1.22912888 | PmRA2000 | 0.009 | ||||
PmDE2000 | -0.004 |
Catalog | H | HIP | 59878 | Proxy | H | RAhms | 12 16 47.02 | ||||
DEdms | +70 08 45.8 | Vmag | 8.67 | VarFlag | R Vmag | H | |||||
RAdeg | 184.196 | DEdeg | 70.146 | AstroRef | A | Plx | 6.62 | ||||
CCDM | 12168+7009 | N CCDM | I | Nsys | 1 | Ncomp | 2 | ||||
MultFlag | C | Source | Qual | A | M HIP | AB | |||||
Theta | 3 | Rho | 2.138 | HD | 106831 | BD | BD+70 690 | ||||
CD | CP | Dm number | +70 690 | VIred | 0.59 | ||||||
SpType | G0 | R SpType | Coord arcsec 2000 | 121647.02+700845.8 |
HIP | 59878 | Sn | 15 | So | 3 | Nc | 2 | ||||
RArad | 3.2148255037 | DErad | 1.2242795067 | Plx | 6.33 | PmRA | 54.25 | ||||
PmDE | 0.91 | E RArad | 0.96 | E DErad | 1.17 | E Plx | 1.34 | ||||
E pmRA | 1.36 | E pmDE | 1.2 | Hpmag | 8.7771 | E Hpmag | 0.0017 | ||||
SHp | 0.019 | VA | 0 | BV | 0.487 | E BV | 0.023 | ||||
VI | 0.56 |
Ccdm | 12168+7009 | RComp | Comp | A | Note1 | ||||||
Note2 | Discov num | DRAs | -0.76 | DDEs | -13.3 | ||||||
R dRAs | 10 | Year | Theta | Rho | |||||||
Obs | 2 | Vmag | 8.9 | Sp | G0 | PmNote | * | ||||
PmRA | 59 | PmDE | 0 | Dm number | +70 690 | Cat1 | BD | ||||
Name2 | +70 440 | Cat2 | AGK2/3 | HD | 106831 | M HD | |||||
ADS BDS | A 8498 | M ADS BDS | N IDS | IDS | 12120N7042A | ||||||
HIC | 59878 |
Componente originario normalizzato | AB | Coord arcsec 2000 | 121647.11+700847.8 | Mag | 9.55 | Calc delta mag | 0.18 | ||||
Calc coord | yes |
Ccdm | 12168+7009 | RComp | Comp | B | Note1 | ||||||
Note2 | Discov num | STF1626 | DRAs | DDEs | |||||||
R dRAs | Year | 1952 | Theta | 002 | Rho | 2.2 | |||||
Obs | 14 | Vmag | 9.0 | Sp | PmNote | ||||||
PmRA | PmDE | Dm number | Cat1 | ||||||||
Name2 | Cat2 | HD | M HD | ||||||||
ADS BDS | A 8498 | M ADS BDS | N IDS | IDS | 12120N7042B | ||||||
HIC | 59878 |