Coord 2000 | 16181+2551 | Discov num | STF2035 | Comp | Coord arcsec 2000 | 16 18 09.39 +25 51 41.2 | |||||
Date first | 1831 | Date last | 2020 | Obs | 24 | ||||||
Pa first | 34 | Pa last | 35.5 | P.A. Now (θ) | 35.5° | ||||||
Sep first | 2.7 | Sep last | 2.698 | Sep. Now (ρ) | 2.698" | ||||||
Mag pri | 9.71 | Mag sec | 10.90 | delta mag (ΔM) | 1.19 | Spectral class | F5 (yellow-white) | ||||
Pri motion ra | +005 | Sec motion ra | +004 | ||||||||
Pri motion dec | -022 | Sec motion dec | -017 | ||||||||
Notes |
Constellation | Hercules | Tycho2 | 2046-00907-1 | Gaia DR2 | 1303555460902911232 | ADS | 9993 |
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 |
16181+2551 | STF2035 | 2000 | 17 | 36 | 2.5 | 9.71 | 10.90 | F5 | 161809.39+255141.2 | ||
16181+2551 | STF2035 | 2001 | 18 | 35 | 2.5 | 9.71 | 10.90 | F5 | 161809.39+255141.2 | ||
16181+2551 | STF2035 | 2013 | 19 | 35 | 2.6 | 9.71 | 10.90 | F5 | 161809.39+255141.2 | ||
16181+2551 | STF2035 | 2015 | 20 | 35 | 2.6 | 9.71 | 10.90 | F5 | 161809.39+255141.2 | ||
16181+2551 | STF2035 | 2020 | 21 | 36 | 2.7 | 9.71 | 10.90 | F5 | 161809.39+255141.2 |
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=32.7° sep=2.61" |
Componente originario normalizzato | AB | Coord arcsec 2000 | 161809.39+255141.2 | Mag | 9.71 | Spectral class | F5 (yellow-white) | ||||
PmRA | 5.00 | PmDE | -22.0 | Tycho2 | 2046-00907-1 | ADS | 9993 | ||||
DM | BD+26 2816 |
Tycho2 | 2046-00907-1 | Pflag | P | RAmdeg | 244.53914316 | DEmdeg | 25.86145796 | ||||
PmRA | 3.5 | PmDE | -16.8 | E RAmdeg | 30 | E DEmdeg | 24 | ||||
E pmRA | 2.2 | E pmDE | 2.1 | EpRAm | 1989.77 | EpDEm | 1990.45 | ||||
Num | 4 | Q RAmdeg | 0.9 | Q DEmdeg | 1.7 | Q pmRA | 0.9 | ||||
Q pmDE | 1.7 | BTmag | 10.230 | E BTmag | 0.022 | VTmag | 9.709 | ||||
E VTmag | 0.019 | Prox | 26 | TYC | T | HIP | |||||
CCDM | RAdeg | 244.53905111 | DEdeg | 25.86138722 | EpRA 1990 | 1.82 | |||||
EpDE 1990 | 1.84 | E RAdeg | 12.2 | E DEdeg | 10.2 | Posflg | D | ||||
Corr | -0.2 |
Componente originario normalizzato | AB | Coord arcsec 2000 | 161809.49+255143.4 | Mag | 10.9 | PmRA | 4.00 | ||||
PmDE | -17.0 | Tycho2 | 2046-00907-2 | Calc delta mag | 1.19 | Calc coord | yes |
Tycho2 | 2046-00907-2 | Pflag | P | RAmdeg | 244.53914316 | DEmdeg | 25.86145796 | ||||
PmRA | 3.5 | PmDE | -16.8 | E RAmdeg | 30 | E DEmdeg | 24 | ||||
E pmRA | 2.2 | E pmDE | 2.1 | EpRAm | 1989.77 | EpDEm | 1990.45 | ||||
Num | 4 | Q RAmdeg | 0.9 | Q DEmdeg | 1.7 | Q pmRA | 0.9 | ||||
Q pmDE | 1.7 | BTmag | 11.342 | E BTmag | 0.045 | VTmag | 10.899 | ||||
E VTmag | 0.045 | Prox | 26 | TYC | T | HIP | |||||
CCDM | RAdeg | 244.53951028 | DEdeg | 25.86198806 | EpRA 1990 | 1.82 | |||||
EpDE 1990 | 1.85 | E RAdeg | 29.8 | E DEdeg | 24.4 | Posflg | D | ||||
Corr | -0.2 |