Coord 2000 | 18573+6224 | Discov num | STF2440 | Comp | AB | Coord arcsec 2000 | 18 57 17.34 +62 23 48.7 | ||||
Date first | 1831 | Date last | 2015 | Obs | 33 | ||||||
Pa first | 126 | Pa last | 122.2 | P.A. Now (θ) | 122.2° | ||||||
Sep first | 16.5 | Sep last | 17.362 | Sep. Now (ρ) | 17.362" | ||||||
Mag pri | 6.59 | Mag sec | 9.61 | delta mag (ΔM) | 3.02 | Spectral class | G8III (yellow) | ||||
Pri motion ra | +006 | Sec motion ra | +008 | ||||||||
Pri motion dec | -041 | Sec motion dec | -042 | ||||||||
Notes | N (See Notes) |
Show | name | SAO | coord | wds_name | last | obs | pa | sep | mag1 | mag2 | d_mag | orb | current |
Show | HD 176668 | 18082 | 18 57 17 +62 23 49 | STF 2440 AB | 2015 | 33 | 122 | 17.4 | 6.59 | 9.61 | 3.02 | <=== | |
Show | 18082 | 18 57 17 +62 23 49 | STF 2440 AC | 2015 | 9 | 60 | 161.0 | 6.59 | 10.92 | 4.33 | |||
Show | 18082 | 18 57 17 +62 23 49 | WAL 98 AD | 2015 | 4 | 71 | 53.9 | 6.59 | 13.45 | 6.86 |
Name | HD 176668 | Constellation | Draco | SAO | 18082 | HIP | 93053 | ||||
Tycho2 | 4220-01507-1 | Gaia DR2 | 2252961417657939840 | HD | 176668 | HR | 7191 | ||||
GC | 26074 | ADS | 11901 | BD | BD+62 1669 | Distance | 95.42 | ||||
Distance ly | 311.26 |
discov_num | notes | refcode |
STF2440 | Spectrum of A also called composite; G5IV+G8V. |
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. | ||
Wal1934 | Ma j | Wallenquist, A. | 1934AnBos...6....3W |
Wal1934 | Ann. Bosscha Obs. Lembang 6, Pt.2, 1934 | ||
Wal1944a | Zw - | Wallenquist, A. | 1954MeUpp...85..... |
Wal1944a | Medd. Uppsala Obs. #85, 1944 | ||
Wal1944a | (Visual measures with wedge photometer attached to 14-inch refractor. No dates | ||
Wal1944a | given for measures; default date = decade of publication added.) | ||
Wal1944b | Zw - | Wallenquist, A. | 1954MeUpp...87..... |
Wal1944b | Medd. Uppsala Obs. #87, 1944 | ||
Wal1944b | (Visual measures with wedge photometer attached to 14-inch refractor. No dates | ||
Wal1944b | given for measures; default date = decade of publication added.) | ||
Wal1947 | Zw - | Wallenquist, A. | 1947UppAn...2....2W |
Wal1947 | Ann. Uppsala Astron. Obs. 2, No.2, 1947 | ||
Wal1947 | (A catalogue containing results of the two prior series, plus additional measures | ||
Wal1947 | with the 14-inch refractor and wedge photometer) | ||
Wal1948 | Zw - | Wallenquist, A. | 1948UppAn...2....3W |
Wal1948 | Ann. Uppsala Astron Obs. 2, #3, 1948 | ||
Wal1948 | (Visual measures of southern double stars made with 17-inch refractor of La Plata | ||
Wal1948 | and wedge photometer. No dates listed; default date = decade of publication added) | ||
Wal1950 | Zd - | Wallenquist, A. | 1950MeUpp..103..... |
Wal1950 | Medd. Uppsala Obs. #103, 1950 | ||
Wal1954 | Zw - | Wallenquist, A. | 1954UppAn...4Q....W |
Wal1954 | Ann. Uppsala Astron Obs. 4, #2, 1954 | ||
Wal1954 | ("General Catalogue of Differences in Magnitude of Double Stars". Weighted mean | ||
Wal1954 | values from numerous sources) | ||
Wal1958 | Zw - | Wallenquist, A. | 1958MeUpp..118..... |
Wal1958 | Medd. Uppsala Obs. #118, 1958 |
coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
18573+6224 | STF2440 | AB | 2006 | 30 | 122 | 17.5 | 6.59 | 9.61 | G8III | N D | 185717.34+622348.7 |
18573+6224 | STF2440 | AB | 2015 | 32 | 122 | 17.4 | 6.59 | 9.61 | G8III | N | 185717.34+622348.7 |
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. |
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A | B | C | |
B | pa=143.7° sep=11.49" | ||
C | pa=38.5° sep=103.50" | pa=32.6° sep=107.08" | |
D | pa=52.6° sep=29.63" | pa=31.6° sep=31.97" | pa=213.0° sep=75.12" |
Name | HD 176668 | Coord arcsec 2000 | 185717.34+622348.7 | Mag | 6.59 | Spectral class | G8III (yellow) | ||||
PmRA | 6.00 | PmDE | -41.0 | SAO | 18082 | HIP | 93053 | ||||
Tycho2 | 4220-01507-1 | HD | 176668 | HR | 7191 | GC | 26074 | ||||
ADS | 11901 | BD | BD+62 1669 |
Tycho2 | 4220-01507-1 | Pflag | RAmdeg | 284.32225400 | DEmdeg | 62.39677491 | |||||
PmRA | 3.3 | PmDE | -40.4 | E RAmdeg | 4 | E DEmdeg | 4 | ||||
E pmRA | 1.3 | E pmDE | 1.4 | EpRAm | 1991.58 | EpDEm | 1991.54 | ||||
Num | 10 | Q RAmdeg | 0.8 | Q DEmdeg | 0.8 | Q pmRA | 0.8 | ||||
Q pmDE | 0.9 | BTmag | 7.654 | E BTmag | 0.015 | VTmag | 6.591 | ||||
E VTmag | 0.010 | Prox | 173 | TYC | T | HIP | 93053 | ||||
CCDM | A | RAdeg | 284.32223778 | DEdeg | 62.39686833 | EpRA 1990 | 1.74 | ||||
EpDE 1990 | 1.67 | E RAdeg | 4.0 | E DEdeg | 4.2 | Posflg | |||||
Corr | -0.1 |
SAO | 18082 | DelFlag | RA1950 | PmRA1950 | 0 | ||||||
DE1950 | PmDE1950 | -0.038 | Vmag | 6.4 | SpType | K0 | |||||
Double code | Source | 70 | CatNum | 26074 | DM | BD+62 1669 | |||||
DMcomp | BDsup | HD | 176668 | M HD | 0 | ||||||
GC | 26074 | RA1950rad | 4.96016827 | DE1950rad | 1.0878416 | PmRA2000 | 0.0008 | ||||
PmDE2000 | -0.039 |
Catalog | H | HIP | 93053 | Proxy | RAhms | 18 57 17.34 | |||||
DEdms | +62 23 48.7 | Vmag | 6.5 | VarFlag | R Vmag | H | |||||
RAdeg | 284.322 | DEdeg | 62.3969 | AstroRef | A | Plx | 10.7 | ||||
CCDM | 18574+6224 | N CCDM | I | Nsys | 1 | Ncomp | 2 | ||||
MultFlag | C | Source | Qual | B | M HIP | AB | |||||
Theta | 122 | Rho | 17.306 | HD | 176668 | BD | BD+62 1669 | ||||
CD | CP | Dm number | +62 1669 | VIred | 0.92 | ||||||
SpType | G5IV comp | R SpType | Coord arcsec 2000 | 185717.34+622348.7 |
HIP | 93053 | Sn | 15 | So | 3 | Nc | 2 | ||||
RArad | 4.962359072 | DErad | 1.0890308739 | Plx | 10.48 | PmRA | 7.42 | ||||
PmDE | -39.94 | E RArad | 0.88 | E DErad | 0.74 | E Plx | 0.84 | ||||
E pmRA | 1.24 | E pmDE | 0.81 | Hpmag | 6.659 | E Hpmag | 0.0098 | ||||
SHp | 0.017 | VA | 0 | BV | 0.927 | E BV | 0.008 | ||||
VI | 0.92 |
Coord arcsec 2000 | 185718.32+622339.4 | Mag | 9.61 | PmRA | 8.00 | PmDE | -42.0 | ||||
Calc delta mag | 3.02 | Calc coord | yes |
Coord arcsec 2000 | 185726.62+622509.7 | Mag | 10.92 | PmRA | 0.00 | PmDE | -24.0 | ||||
Calc delta mag | 4.33 | Calc coord | yes |
Coord arcsec 2000 | 185720.73+622406.7 | Mag | 13.45 | PmRA | 1.00 | PmDE | 22.0 | ||||
Calc delta mag | 6.86 | Calc coord | yes |