Coord 2000 | 10114+7302 | Discov num | STF1408 | Comp | AB | Coord arcsec 2000 | 10 11 21.83 +73 02 12.4 | ||||
Date first | 1831 | Date last | 2020 | Obs | 29 | ||||||
Pa first | 13 | Pa last | 13.2 | P.A. Now (θ) | 13.2° | ||||||
Sep first | 3.5 | Sep last | 3.67 | Sep. Now (ρ) | 3.67" | ||||||
Mag pri | 9.01 | Mag sec | 9.98 | delta mag (ΔM) | 0.97 | Spectral class | F2 (yellow-white) | ||||
Pri motion ra | +023 | Sec motion ra | +020 | ||||||||
Pri motion dec | +040 | Sec motion dec | +013 | ||||||||
Notes | W |
Name | HD 87851 | Constellation | Draco | SAO | 7068 | HIP | 49905 | ||||
Tycho2 | 4390-00585-1 | HD | 87851 | GC | 13954 | BD | BD+73 487 | ||||
Distance | 137.17 | Distance ly | 447.45 |
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 |
10114+7302 | STF1408 | AB | 2018 | 27 | 14 | 3.7 | 9.01 | 9.98 | F2 | W | 101121.83+730212.4 |
10114+7302 | STF1408 | AB | 2020 | 29 | 13 | 3.7 | 9.01 | 9.98 | F2 | W | 101121.83+730212.4 |
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=3.9° sep=3.58" |
Name | HD 87851 | Coord arcsec 2000 | 101121.83+730212.4 | Mag | 9.01 | Spectral class | F2 (yellow-white) | ||||
PmRA | 23.00 | PmDE | 40.0 | SAO | 7068 | HIP | 49905 | ||||
Tycho2 | 4390-00585-1 | HD | 87851 | GC | 13954 | BD | BD+73 487 |
Tycho2 | 4390-00585-1 | Pflag | RAmdeg | 152.84098217 | DEmdeg | 73.03678765 | |||||
PmRA | 12.0 | PmDE | -4.6 | E RAmdeg | 9 | E DEmdeg | 8 | ||||
E pmRA | 1.8 | E pmDE | 1.8 | EpRAm | 1991.08 | EpDEm | 1991.24 | ||||
Num | 5 | Q RAmdeg | 2.3 | Q DEmdeg | 9.9 | Q pmRA | 2.4 | ||||
Q pmDE | 9.9 | BTmag | 9.414 | E BTmag | 0.019 | VTmag | 9.009 | ||||
E VTmag | 0.015 | Prox | 37 | TYC | T | HIP | 49905 | ||||
CCDM | A | RAdeg | 152.84088083 | DEdeg | 73.03679111 | EpRA 1990 | 1.68 | ||||
EpDE 1990 | 1.74 | E RAdeg | 8.6 | E DEdeg | 8.4 | Posflg | |||||
Corr | -0.1 |
SAO | 7068 | DelFlag | RA1950 | PmRA1950 | 0.0062 | ||||||
DE1950 | PmDE1950 | 0.014 | Vmag | 8.9 | SpType | F2 | |||||
Double code | Source | 70 | CatNum | 13954 | DM | BD+73 487 | |||||
DMcomp | BDsup | HD | 87851 | M HD | 0 | ||||||
GC | 13954 | RA1950rad | 2.64893362 | DE1950rad | 1.27903227 | PmRA2000 | 0.0063 | ||||
PmDE2000 | 0.017 |
Catalog | H | HIP | 49905 | Proxy | H | RAhms | 10 11 21.81 | ||||
DEdms | +73 02 12.4 | Vmag | 8.64 | VarFlag | R Vmag | H | |||||
RAdeg | 152.841 | DEdeg | 73.0368 | AstroRef | A | Plx | 8.2 | ||||
CCDM | 10114+7302 | N CCDM | I | Nsys | 1 | Ncomp | 2 | ||||
MultFlag | C | Source | Qual | A | M HIP | AB | |||||
Theta | 13 | Rho | 3.68 | HD | 87851 | BD | BD+73 487 | ||||
CD | CP | Dm number | +73 487 | VIred | 0.45 | ||||||
SpType | F2 | R SpType | Coord arcsec 2000 | 101121.81+730212.4 |
HIP | 49905 | Sn | 15 | So | 3 | Nc | 2 | ||||
RArad | 2.6675767389 | DErad | 1.2747324766 | Plx | 7.29 | PmRA | 13.14 | ||||
PmDE | 14.71 | E RArad | 0.83 | E DErad | 0.73 | E Plx | 0.98 | ||||
E pmRA | 1.06 | E pmDE | 0.84 | Hpmag | 8.7411 | E Hpmag | 0.0022 | ||||
SHp | 0.015 | VA | 0 | BV | 0.456 | E BV | 0.023 | ||||
VI | 0.53 |
Ccdm | 10114+7302 | RComp | Comp | A | Note1 | ||||||
Note2 | Discov num | DRAs | -2.05 | DDEs | 13.6 | ||||||
R dRAs | 10 | Year | Theta | Rho | |||||||
Obs | 2 | Vmag | 9.3 | Sp | F2 | PmNote | * | ||||
PmRA | 19 | PmDE | 15 | Dm number | +73 487 | Cat1 | BD | ||||
Name2 | +73 274 | Cat2 | AGK2/3 | HD | 87851 | M HD | |||||
ADS BDS | A 7664 | M ADS BDS | N IDS | IDS | 10027N7332A | ||||||
HIC | 49905 |
Coord arcsec 2000 | 101121.89+730216.0 | Mag | 9.98 | PmRA | 20.00 | PmDE | 13.0 | ||||
Calc delta mag | 0.97 | Calc coord | yes |
Ccdm | 10114+7302 | RComp | Comp | B | Note1 | ||||||
Note2 | Discov num | STF1408 | DRAs | DDEs | |||||||
R dRAs | Year | 1832 | Theta | 012 | Rho | 3.5 | |||||
Obs | 9 | Vmag | 10.1 | Sp | PmNote | ||||||
PmRA | 8 | PmDE | 26 | Dm number | Cat1 | ||||||
Name2 | Cat2 | HD | M HD | ||||||||
ADS BDS | A 7664 | M ADS BDS | N IDS | IDS | 10027N7332B | ||||||
HIC | 49905 |