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Doubles in session


Current system
23319+7317
A 897


Nearby doubles
4' : 23327+7313
COU 18AB

20' : 23289+7329
LDS2044

33' : 23262+7336
LDS2041AB

34' : 23365+7250
CRB 216

36' : 23385+7338
A 898AB

45' : 23306+7232
TDT4076

54' : 23277+7406
STF3017AB

63' : 23204+7240
MLR 272

65' : 23367+7418
LDS2048

65' : 23179+7341
KPP4312

65' : 23197+7355
HJ 1870

66' : 23412+7409
HJ 1905AB

76' : 23245+7209
LDS2039

76' : 23457+7405
HJ 3212

78' : 23411+7424
LDS2050

82' : 23380+7434
KPP 796

82' : 23132+7307
LDS2028

92' : 23209+7436
SKF2746

99' : 23374+7142
STF3029

101' : 23225+7145
WFC 241

105' : 23270+7135
TDT4039

113' : 23133+7439
LDS2029AB

114' : 23395+7129
LDS2049

118' : 23349+7120
TDS1215

120' : 23438+7129
MLR 277

122' : 23153+7458
LDS2031



Selections
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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.

23319+7317 A 897

 
 
23h 31m 51.93s +73° 16' 48.4" P.A. 331.00 sep 0.2 mag 9.61,10.69 Sp F8 dist. 225.73 pc (736.33 l.y.)
 
 
Coord 2000 23319+7317 Discov num A   897 Comp Coord arcsec 2000 23 31 51.93 +73 16 48.4
Date first 1904 Date last 2007 Obs 13
Pa first 115 Pa last 331.4 P.A. Now (θ) 331.4°
Sep first 0.4 Sep last 0.178 Sep. Now (ρ) 0.178"
Mag pri 9.61 Mag sec 10.69 delta mag (ΔM) 1.08 Spectral class F8 (yellow-white)
Pri motion ra +046 Sec motion ra
Pri motion dec +010 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cepheus SAO 10773 HIP 116133 Gaia DR2 2228815553901076992
ADS 16820 BD BD+72 1107 Distance 225.73 Distance ly 736.33
 
 
ORBITAL ELEMENTS
 
 
Period (P)283y Periastron (T)2054y Semi-major axis (a)0.397a
Eccentricity (e)0.37 Inclination (i)113° Longitude of periastron (ω)222°
Node (Ω)133° Notes ReferenceHei1997
Equinox2000 Last observation Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 359.4 0.201
2001 357.7 0.203
2002 355.9 0.206
2003 354.2 0.209
2004 352.6 0.213
2005 351.0 0.216
2006 349.5 0.219
2007 348.0 0.222
2008 346.5 0.225
2009 345.1 0.229
2010 343.7 0.232
2011 342.4 0.235
2012 341.1 0.238
2013 339.8 0.241
2014 338.6 0.245
2015 337.4 0.248
2016 336.2 0.251
2017 335.1 0.253
2018 334.0 0.256
2019 332.9 0.259
2020 331.8 0.261
2021 330.7 0.264
2022 329.7 0.266
2023 328.7 0.268
2024 327.7 0.270
2025 326.7 0.272
2026 325.7 0.273
2027 324.7 0.274
2028 323.8 0.275
2029 322.8 0.276
2030 321.8 0.277
2031 320.9 0.277
2032 320.0 0.277
2033 319.0 0.277
2034 318.1 0.276
2035 317.1 0.276
2036 316.1 0.275
2037 315.2 0.273
2038 314.2 0.271
2039 313.2 0.269
2040 312.2 0.267
2041 311.1 0.264
2042 310.1 0.261
2043 309.0 0.257
2044 307.9 0.253
2045 306.7 0.249
2046 305.5 0.245
2047 304.3 0.240
2048 303.0 0.234
2049 301.6 0.229
2050 300.2 0.223


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds23319%2B7317a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic