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Current system
19573+0513
A 604
HD 188914


Nearby doubles
6' : 19576+0517
BAL3015

6' : 19570+0514
BAL2956

15' : 19575+0527
HEI 817

17' : 19577+0457
TDT1878

20' : 19585+0519
TDT1890

20' : 19580+0456
A 606

24' : 19562+0456
HEI 575

28' : 19555+0511
HEI 877

28' : 19562+0451
BAL2955

38' : 19581+0548
A 607

40' : 19553+0539
J 543

48' : 19550+0441
BAL2954AB

49' : 19576+0425
BAL2957

49' : 19542+0525
HDS2836

50' : 20004+0530
HJ 2919

58' : 19561+0418
OSO 115AB

64' : 19531+0506
J 1766

71' : 19580+0622
TDT1885

74' : 20023+0512
J 1292AB

78' : 19553+0624
STT 532AB
Alshain

80' : 20001+0405
KPP3351

84' : 20008+0619
BRT2185

86' : 19518+0537
OSO 112

92' : 19548+0636
J 3032

92' : 20025+0601
J 1294

93' : 20032+0444
HDS2860



Selections
Full WDS
Binocular doubles
Binary Systems
Triple Systems
Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

19573+0513 A 604 (HD 188914)

 
 
19h 57m 19.48s +05° 12' 45.1" P.A. 335.00 sep 0.1 mag 9.06,9.85 Sp F8 dist. 190.48 pc (621.35 l.y.)
 
 
Coord 2000 19573+0513 Discov num A   604 Comp Coord arcsec 2000 19 57 19.48 +05 12 45.1
Date first 1903 Date last 2022 Obs 64
Pa first 263 Pa last 335.4 P.A. Now (θ) 329.4°
Sep first 0.2 Sep last 0.122 Sep. Now (ρ) 0.132"
Mag pri 9.06 Mag sec 9.85 delta mag (ΔM) 0.79 Spectral class F8 (yellow-white)
Pri motion ra -003 Sec motion ra
Pri motion dec -009 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 188914 Constellation Aquila SAO 125274 HIP 98203
Tycho2 0489-02302-1 Gaia DR2 4248515717172419072 HD 188914 ADS 13156
BD BD+04 4286 Distance 190.48 Distance ly 621.35
 
 
ORBITAL ELEMENTS
 
 
Period (P)228.15y± 17.63 Periastron (T)1935.43y± 5.63 Semi-major axis (a)0.291a± 0.016
Eccentricity (e)0.268± 0.019 Inclination (i)108°± 1.2 Longitude of periastron (ω)306°± 12.2
Node (Ω)94.7°± 1.9 Notesn ReferenceTok2015c
Equinox2000 Last observation2014 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 45.7 0.128
2001 43.2 0.125
2002 40.6 0.122
2003 37.9 0.119
2004 35.0 0.117
2005 32.1 0.114
2006 29.0 0.112
2007 25.8 0.111
2008 22.5 0.109
2009 19.1 0.108
2010 15.6 0.107
2011 12.2 0.107
2012 8.6 0.106
2013 5.1 0.107
2014 1.6 0.107
2015 358.2 0.108
2016 354.8 0.109
2017 351.5 0.111
2018 348.3 0.113
2019 345.2 0.115
2020 342.3 0.117
2021 339.4 0.120
2022 336.7 0.123
2023 334.1 0.126
2024 331.7 0.129
2025 329.4 0.132
2026 327.2 0.136
2027 325.1 0.140
2028 323.1 0.144
2029 321.2 0.148
2030 319.4 0.152
2031 317.8 0.156
2032 316.2 0.160
2033 314.6 0.164
2034 313.2 0.169
2035 311.8 0.173
2036 310.6 0.177
2037 309.3 0.182
2038 308.1 0.186
2039 307.0 0.191
2040 306.0 0.195
2041 304.9 0.199
2042 303.9 0.204
2043 303.0 0.208
2044 302.1 0.212
2045 301.2 0.217
2046 300.4 0.221
2047 299.6 0.225
2048 298.8 0.229
2049 298.1 0.234
2050 297.4 0.238


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds19573%2B0513b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic