Coord 2000 | 11245+2037 | Discov num | STF1537 | Comp | Coord arcsec 2000 | 11 24 28.94 +20 37 16.5 | |||||
Date first | 1830 | Date last | 2020 | Obs | 59 | ||||||
Pa first | 357 | Pa last | 359.7 | P.A. Now (θ) | 359.7° | ||||||
Sep first | 3.6 | Sep last | 2.04 | Sep. Now (ρ) | 2.04" | ||||||
Mag pri | 8.23 | Mag sec | 9.07 | delta mag (ΔM) | 0.84 | Spectral class | G0 (yellow) | ||||
Pri motion ra | -002 | Sec motion ra | |||||||||
Pri motion dec | +000 | Sec motion dec | |||||||||
Notes |
Name | HD 99121 | Constellation | Leo | SAO | 81805 | HIP | 55677 | ||||
Tycho2 | 1439-00627-1 | Gaia DR2 | 3978690341024113536 | HD | 99121 | GC | 15662 | ||||
BD | BD+21 2314 | Distance | 92.59 | Distance ly | 302.03 |
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 |
11245+2037 | STF1537 | 2005 | 49 | 357 | 2.2 | 8.23 | 9.07 | G0 | D | 112428.94+203716.5 | |
11245+2037 | STF1537 | 2010 | 52 | 358 | 2.3 | 8.23 | 9.07 | G0 | D | 112428.94+203716.5 | |
11245+2037 | STF1537 | 2012 | 53 | 358 | 2.2 | 8.23 | 9.07 | G0 | D | 112428.94+203716.5 | |
11245+2037 | STF1537 | 2013 | 52 | 358 | 2.3 | 8.23 | 9.07 | G0 | D | 112428.94+203716.5 | |
11245+2037 | STF1537 | 2017 | 55 | 358 | 2.3 | 8.23 | 9.07 | G0 | 112428.94+203716.5 | ||
11245+2037 | STF1537 | 2019 | 57 | 358 | 2.3 | 8.23 | 9.07 | G0 | 112428.94+203716.5 | ||
11245+2037 | STF1537 | 2020 | 58 | 0 | 2.0 | 8.23 | 9.07 | G0 | 112428.94+203716.5 |
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=359.7° sep=2.04" |
Componente originario normalizzato | AB | Name | HD 99121 | Coord arcsec 2000 | 112428.94+203716.5 | Mag | 8.23 | ||||
Spectral class | G0 (yellow) | PmRA | -2.00 | PmDE | 0.0 | SAO | 81805 | ||||
HIP | 55677 | Tycho2 | 1439-00627-1 | HD | 99121 | GC | 15662 | ||||
BD | BD+21 2314 |
Tycho2 | 1439-00627-1 | Pflag | RAmdeg | 171.12056654 | DEmdeg | 20.62126023 | |||||
PmRA | -1.5 | PmDE | 0.2 | E RAmdeg | 7 | E DEmdeg | 7 | ||||
E pmRA | 1.6 | E pmDE | 1.5 | EpRAm | 1991.54 | EpDEm | 1991.38 | ||||
Num | 3 | Q RAmdeg | 0.7 | Q DEmdeg | 0.3 | Q pmRA | 0.7 | ||||
Q pmDE | 0.3 | BTmag | 8.727 | E BTmag | 0.018 | VTmag | 8.231 | ||||
E VTmag | 0.014 | Prox | 23 | TYC | T | HIP | 55677 | ||||
CCDM | A | RAdeg | 171.12057028 | DEdeg | 20.62125972 | EpRA 1990 | 1.74 | ||||
EpDE 1990 | 1.59 | E RAdeg | 6.9 | E DEdeg | 7.4 | Posflg | D | ||||
Corr | 0.1 |
SAO | 81805 | DelFlag | RA1950 | PmRA1950 | -0.0005 | ||||||
DE1950 | PmDE1950 | -0.006 | Vmag | 8.2 | SpType | G0 | |||||
Double code | Source | 70 | CatNum | 15662 | DM | BD+21 2314 | |||||
DMcomp | BDsup | HD | 99121 | M HD | 0 | ||||||
GC | 15662 | RA1950rad | 2.97514044 | DE1950rad | 0.36470151 | PmRA2000 | -0.0005 | ||||
PmDE2000 | -0.001 |
Catalog | H | HIP | 55677 | Proxy | H | RAhms | 11 24 28.94 | ||||
DEdms | +20 37 16.5 | Vmag | 7.78 | VarFlag | R Vmag | H | |||||
RAdeg | 171.121 | DEdeg | 20.6213 | AstroRef | A | Plx | 11.59 | ||||
CCDM | 11245+2037 | N CCDM | I | Nsys | 1 | Ncomp | 2 | ||||
MultFlag | C | Source | Qual | A | M HIP | AB | |||||
Theta | 357 | Rho | 2.306 | HD | 99121 | BD | BD+21 2314 | ||||
CD | CP | Dm number | +21 2314 | VIred | -0.21 | ||||||
SpType | G0 | R SpType | Coord arcsec 2000 | 112428.94+203716.5 |
HIP | 55677 | Sn | 15 | So | 3 | Nc | 2 | ||||
RArad | 2.9866174113 | DErad | 0.3599088358 | Plx | 10.8 | PmRA | -0.09 | ||||
PmDE | 7.04 | E RArad | 1.11 | E DErad | 0.94 | E Plx | 1.13 | ||||
E pmRA | 1.42 | E pmDE | 1.01 | Hpmag | 7.8898 | E Hpmag | 0.0023 | ||||
SHp | 0.019 | VA | 0 | BV | 0.485 | E BV | 0.005 | ||||
VI | 0.56 |
Ccdm | 11245+2037 | RComp | Comp | A | Note1 | ||||||
Note2 | Discov num | DRAs | -1.02 | DDEs | 16.9 | ||||||
R dRAs | 10 | Year | Theta | Rho | |||||||
Obs | 2 | Vmag | 8.6 | Sp | G0 | PmNote | * | ||||
PmRA | 17 | PmDE | -4 | Dm number | +21 2314 | Cat1 | BD | ||||
Name2 | +20 1259 | Cat2 | AGK2/3 | HD | 99121 | M HD | |||||
ADS BDS | A 8149 | M ADS BDS | N IDS | IDS | 11192N2110A | ||||||
HIC | 55677 |
Componente originario normalizzato | AB | Coord arcsec 2000 | 112428.94+203718.5 | Mag | 9.07 | Calc delta mag | 0.84 | ||||
Calc coord | yes |
Ccdm | 11245+2037 | RComp | Comp | B | Note1 | ||||||
Note2 | Discov num | STF1537 | DRAs | DDEs | |||||||
R dRAs | Year | 1831 | Theta | 356 | Rho | 2.4 | |||||
Obs | 99 | Vmag | 9.6 | Sp | PmNote | ||||||
PmRA | PmDE | Dm number | Cat1 | ||||||||
Name2 | Cat2 | HD | M HD | ||||||||
ADS BDS | A 8149 | M ADS BDS | N IDS | IDS | 11192N2110B | ||||||
HIC | 55677 |