Coord 2000 | 17407+3117 | Discov num | STTA157 | Comp | AB | Coord arcsec 2000 | 17 40 41.23 +31 17 15.6 | ||||
Date first | 1874 | Date last | 2015 | Obs | 31 | ||||||
Pa first | 111 | Pa last | 106.2 | P.A. Now (θ) | 106.2° | ||||||
Sep first | 112.9 | Sep last | 118.28 | Sep. Now (ρ) | 118.28" | ||||||
Mag pri | 6.43 | Mag sec | 7.92 | delta mag (ΔM) | 1.49 | Spectral class | K0III (yellow-orange) | ||||
Pri motion ra | -059 | Sec motion ra | -010 | ||||||||
Pri motion dec | -075 | Sec motion dec | -016 | ||||||||
Notes | N Z (See Notes, Parallax indicates components are physical) |
Show | name | SAO | coord | wds_name | last | obs | pa | sep | mag1 | mag2 | d_mag | orb | current |
Show | 66243 | 17 40 41 +31 17 16 | HDS 2501 Aa,Ab | 2011 | 3 | 78 | 0.8 | 6.50 | 10.30 | 3.80 | |||
Show | HD 160822 | 66243 | 17 40 41 +31 17 16 | STTA 157 AB | 2015 | 31 | 106 | 118.3 | 6.43 | 7.92 | 1.49 | <=== |
Name | HD 160822 | Constellation | Hercules | SAO | 66243 | HIP | 86506 | ||||
Tycho2 | 2606-01359-1 | Gaia DR2 | 4600598508813170944 | HD | 160822 | HR | 6591 | ||||
GC | 23984 | BD | BD+31 3076 | Distance | 130.38 | Distance ly | 425.3 |
discov_num | notes | refcode |
STTA157 | B is BD+31@3077. |
refcode | metd | author | reference |
HDS | Hipparcos Double Star (from additional DD list) | ................... | |
STTA | (O. Struve DD - Appendix list) | ................... | |
Stt1864 | Ma - | Struve, O. | 1864MNRAS..24..149S |
Stt1864 | MNRAS 24, 149, 1864 | ||
Stt1866 | orb - | Struve, O. | . |
Stt1866 | Bull. Imp. Acad. Sci. St. Petersburg, 1866 | ||
Stt1874 | orb - | Struve, O. | . |
Stt1874 | Compte Rendus 79, 1467, 1874 | ||
Stt1875 | orb - | Struve, O. | 1875MNRAS..35..367S |
Stt1875 | MNRAS 35, 367, 1875 | ||
Stt1878 | Ma - | Struve, O. | 1878ObPul...9....1S |
Stt1878 | Pulkova Observations 9, 1, 1878 | ||
Stt1879A | Ma - | Struve, O. | 1879Obs.....2..304G |
Stt1879A | cited by Gledhill (Obs 2, 304, 1879) | ||
Stt1879B | Ma - | Struve, O. | 1879Obs.....3..245G |
Stt1879B | cited by Gledhill (Obs 3, 245, 1879) | ||
Stt1879C | Ma - | Struve, O. | 1879Obs.....2..344G |
Stt1879C | cited by Gledhill (Obs 2, 344, 1879) | ||
Stt1880A | Ma - | Struve, O. | 1880Obs.....2..605H |
Stt1880A | cited by Hunt (Obs. 3, 605, 1880) | ||
Stt1880B | Ma - | Struve, O. | 1880Obs.....3..535G |
Stt1880B | cited by Gledhill (Obs 3, 535, 1880) | ||
Stt1880C | Ma - | Struve, O. | 1880MNRAS..40..497B |
Stt1880C | cited by Burnham (MNRAS 40, 497, 1880) | ||
Stt1884A | Ma - | Struve, O. | 1884AReg...22..216S |
Stt1884A | cited by Sadler (Astr. Register 22, 216, 1884) | ||
Stt1893a | Ma j | Struve, O. | 1893ObPul..10....1S |
Stt1893a | Pulkova Obs. Observations 10, 1, 1893 | ||
Stt1906A | Ma - | Struve, O. | 1906MmRAS..56....1L |
Stt1906A | cited by Lewis (MemRAS 56, 1, 1906) | ||
Stt1906B | Ma j | Struve, O. | 1906QB821.B972..... |
Stt1906B | cited in BDS (Burnham Double Star Cat., 1906) | ||
Stt1908A | Ma - | Struve, O. | 1908MNRAS..68..465B |
Stt1908A | cited by Barnard (MNRAS 68, 465, 1908) | ||
Stt1913A | Ma - | Struve, O. | 1913QB811.B8....... |
Stt1913A | cited by Burnham (Carnegie Inst. Wash. #168, 1913) | ||
Stt1914A | Ma - | Struve, O. | 1914AN....198..107R |
Stt1914A | cited by Rabe (AN 198, 107, 1914) | ||
Stt1932A | Ma - | Struve, O. | 1932QB821.A43...... |
Stt1932A | cited in ADS (Aitken Double Star Cat., 1932) |
coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
17407+3117 | STTA157 | AB | 2003 | 29 | 105 | 116.5 | 6.43 | 7.92 | K0III | NZD | 174041.23+311715.6 |
17407+3117 | STTA157 | AB | 2015 | 31 | 106 | 118.3 | 6.43 | 7.92 | K0III | NZ | 174041.23+311715.6 |
Show | date | username | difficulty | separation | pa_estim | interest | notes |
Show | 22/07/11 | daedalus1 | mean difficulty | separated | 105 | Seeing Pickering 9. Measures: theta 105, rho 118.2 +/- 0.2 |
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 | Ab | |
Ab | pa=75.8° sep=0.68" | |
B | pa=108.8° sep=102.53" | pa=109.0° sep=101.96" |
Name | HD 160822 | Coord arcsec 2000 | 174041.23+311715.6 | Mag | 6.43 | Spectral class | K0III (yellow-orange) | ||||
PmRA | -59.00 | PmDE | -75.0 | SAO | 66243 | HIP | 86506 | ||||
Tycho2 | 2606-01359-1 | HD | 160822 | HR | 6591 | GC | 23984 | ||||
BD | BD+31 3076 |
Tycho2 | 2606-01359-1 | Pflag | RAmdeg | 265.17161118 | DEmdeg | 31.28748477 | |||||
PmRA | -61.5 | PmDE | -72.8 | E RAmdeg | 4 | E DEmdeg | 4 | ||||
E pmRA | 1.1 | E pmDE | 1.2 | EpRAm | 1991.33 | EpDEm | 1991.58 | ||||
Num | 14 | Q RAmdeg | 1.0 | Q DEmdeg | 1.2 | Q pmRA | 0.9 | ||||
Q pmDE | 1.2 | BTmag | 7.692 | E BTmag | 0.015 | VTmag | 6.429 | ||||
E VTmag | 0.010 | Prox | 999 | TYC | T | HIP | 86506 | ||||
CCDM | AC | RAdeg | 265.17178000 | DEdeg | 31.28765083 | EpRA 1990 | 1.56 | ||||
EpDE 1990 | 1.79 | E RAdeg | 3.9 | E DEdeg | 3.7 | Posflg | P | ||||
Corr | -0.1 |
SAO | 66243 | DelFlag | RA1950 | PmRA1950 | -0.0055 | ||||||
DE1950 | PmDE1950 | -0.073 | Vmag | 6.4 | SpType | K0 | |||||
Double code | Source | 70 | CatNum | 23984 | DM | BD+31 3076 | |||||
DMcomp | BDsup | HD | 160822 | M HD | 0 | ||||||
GC | 23984 | RA1950rad | 4.61989334 | DE1950rad | 0.54651619 | PmRA2000 | -0.0052 | ||||
PmDE2000 | -0.072 |
Catalog | H | HIP | 86506 | Proxy | H | RAhms | 17 40 41.23 | ||||
DEdms | +31 17 15.6 | Vmag | 6.3 | VarFlag | R Vmag | H | |||||
RAdeg | 265.172 | DEdeg | 31.2877 | AstroRef | A | Plx | 8.09 | ||||
CCDM | 17407+3117 | N CCDM | I | Nsys | 2 | Ncomp | 2 | ||||
MultFlag | C | Source | Qual | A | M HIP | AC | |||||
Theta | 77 | Rho | 0.784 | HD | 160822 | BD | BD+31 3076 | ||||
CD | CP | Dm number | +31 3076 | VIred | 1.04 | ||||||
SpType | K0III | R SpType | Coord arcsec 2000 | 174041.23+311715.6 |
HIP | 86506 | Sn | 15 | So | 3 | Nc | 2 | ||||
RArad | 4.6281206794 | DErad | 0.5460726956 | Plx | 7.67 | PmRA | -60.08 | ||||
PmDE | -74.95 | E RArad | 0.3 | E DErad | 0.33 | E Plx | 0.45 | ||||
E pmRA | 0.3 | E pmDE | 0.35 | Hpmag | 6.4629 | E Hpmag | 0.0008 | ||||
SHp | 0.009 | VA | 0 | BV | 1.075 | E BV | 0.005 | ||||
VI | 1.04 |
Ccdm | 17407+3117 | RComp | Comp | A | Note1 | ||||||
Note2 | Discov num | DRAs | -0.81 | DDEs | 14.9 | ||||||
R dRAs | 82 | Year | Theta | Rho | |||||||
Obs | 3 | Vmag | 6.5 | Sp | K0 | PmNote | * | ||||
PmRA | -59 | PmDE | -75 | Dm number | +31 3076 | Cat1 | BD | ||||
Name2 | +31 1544 | Cat2 | AGK2/3 | HD | 160822 | M HD | |||||
ADS BDS | B 8115 | M ADS BDS | N IDS | IDS | 17369N3120A | ||||||
HIC | 86506 |
Coord arcsec 2000 | 174041.28+311715.8 | Mag | 10.3 | Calc delta mag | 3.8 | Calc coord | yes |
Coord arcsec 2000 | 174048.80+311642.6 | Mag | 7.92 | PmRA | -10.00 | PmDE | -16.0 | ||||
SAO | 66247 | HIP | 86514 | Tycho2 | 2606-01263-1 | HD | 160848 | ||||
BD | BD+31 3077 | Calc delta mag | 1.42 | Calc coord | yes |
Tycho2 | 2606-01263-1 | Pflag | RAmdeg | 265.20813695 | DEmdeg | 31.27885744 | |||||
PmRA | -11.3 | PmDE | -12.8 | E RAmdeg | 5 | E DEmdeg | 5 | ||||
E pmRA | 1.1 | E pmDE | 1.1 | EpRAm | 1991.21 | EpDEm | 1991.40 | ||||
Num | 13 | Q RAmdeg | 1.4 | Q DEmdeg | 0.8 | Q pmRA | 1.4 | ||||
Q pmDE | 0.7 | BTmag | 8.071 | E BTmag | 0.015 | VTmag | 7.915 | ||||
E VTmag | 0.011 | Prox | 999 | TYC | T | HIP | 86514 | ||||
CCDM | RAdeg | 265.20816750 | DEdeg | 31.27888667 | EpRA 1990 | 1.60 | |||||
EpDE 1990 | 1.78 | E RAdeg | 5.0 | E DEdeg | 4.6 | Posflg | |||||
Corr | -0.2 |
SAO | 66247 | DelFlag | RA1950 | PmRA1950 | 0.0007 | ||||||
DE1950 | PmDE1950 | -0.02 | Vmag | 8.3 | SpType | A0 | |||||
Double code | Source | 6 | CatNum | 1545 | DM | BD+31 3077 | |||||
DMcomp | BDsup | HD | 160848 | M HD | 0 | ||||||
GC | RA1950rad | 4.62052017 | DE1950rad | 0.54634622 | PmRA2000 | 0.001 | |||||
PmDE2000 | -0.019 |
Catalog | H | HIP | 86514 | Proxy | RAhms | 17 40 49.96 | |||||
DEdms | +31 16 44.0 | Vmag | 7.9 | VarFlag | R Vmag | H | |||||
RAdeg | 265.208 | DEdeg | 31.2789 | AstroRef | Plx | 6.82 | |||||
CCDM | 17407+3117 | N CCDM | I | Nsys | 2 | Ncomp | 1 | ||||
MultFlag | Source | Qual | M HIP | ||||||||
Theta | Rho | HD | 160848 | BD | BD+31 3077 | ||||||
CD | CP | Dm number | +31 3077 | VIred | 0.13 | ||||||
SpType | A0 | R SpType | Coord arcsec 2000 | 174049.96+311644.0 |
HIP | 86514 | Sn | 5 | So | 0 | Nc | 1 | ||||
RArad | 4.6287557566 | DErad | 0.5459195741 | Plx | 6.04 | PmRA | -8.53 | ||||
PmDE | -14.15 | E RArad | 0.36 | E DErad | 0.48 | E Plx | 0.56 | ||||
E pmRA | 0.38 | E pmDE | 0.53 | Hpmag | 7.9572 | E Hpmag | 0.0013 | ||||
SHp | 0.017 | VA | 0 | BV | 0.155 | E BV | 0.011 | ||||
VI | 0.17 |
Ccdm | 17407+3117 | RComp | Comp | B | Note1 | ||||||
Note2 | Discov num | STT4157 | DRAs | 7.94 | DDEs | -16.1 | |||||
R dRAs | 82 | Year | 1924 | Theta | 109 | Rho | 115.0 | ||||
Obs | 8 | Vmag | 8.0 | Sp | A0 | PmNote | * | ||||
PmRA | -28 | PmDE | -8 | Dm number | +31 3077 | Cat1 | BD | ||||
Name2 | +31 1545 | Cat2 | AGK2/3 | HD | 160848 | M HD | |||||
ADS BDS | B 8115 | M ADS BDS | N IDS | IDS | 17369N3120B | ||||||
HIC | 86514 |