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Doubles in session


Current system
23179-5429
RST 1161
HD 219643


Nearby doubles
14' : 23165-5434
RST1160

22' : 23198-5443
LDS 811

34' : 23186-5502
TDT3976

48' : 23129-5411
HU 1549

48' : 23232-5441
KPP4315

56' : 23116-5435
NSN 457

61' : 23144-5337
UC 4908

67' : 23239-5349
DUN 249

70' : 23099-5437
NZO 105

77' : 23212-5319
KPP 994

88' : 23255-5527
FIN 289

90' : 23246-5537
TDT4025

96' : 23289-5428
SKF 388

106' : 23112-5557
B 2508

106' : 23287-5343
RST2219

107' : 23300-5419
HJ 5401

118' : 23128-5240
TOK 682AB

121' : 23313-5400
B 601

124' : 23042-5501
I 259

125' : 23037-5438
TDT3866

128' : 23144-5226
LDS 801

128' : 23322-5501
BRT3190

128' : 23319-5351
TDT4086

129' : 23317-5346
TOK 645

131' : 23271-5247
NSC 32

131' : 23040-5520
TDS1200



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.

23179-5429 RST 1161 (HD 219643)

 
 
23h 17m 55.56s -54° 28' 59.8" P.A. 288.00 sep 0.1 mag 10.13,10.89 Sp F5V dist. 341.3 pc (1113.32 l.y.)
 
 
Coord 2000 23179-5429 Discov num RST1161 Comp Coord arcsec 2000 23 17 55.56 -54 28 59.8
Date first 1929 Date last 2020 Obs 8
Pa first 184 Pa last 288.1 P.A. Now (θ) 288.1°
Sep first 0.2 Sep last 0.149 Sep. Now (ρ) 0.149"
Mag pri 10.13 Mag sec 10.89 delta mag (ΔM) 0.76 Spectral class F5V (yellow-white)
Pri motion ra +033 Sec motion ra
Pri motion dec -012 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 219643 Constellation Grus SAO 247817 HIP 115035
Tycho2 8831-01168-1 Gaia DR2 6499613110419601536 HD 219643 CP CP-55 9989
Distance 341.3 Distance ly 1113.32
 
 
ORBITAL ELEMENTS
 
 
Period (P)131.1y Periastron (T)2009.454y Semi-major axis (a)0.197a
Eccentricity (e)0.286 Inclination (i)140.6° Longitude of periastron (ω)103.7°
Node (Ω)90.6° Notes ReferenceTok2024a
Equinox2000 Last observation2020 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 40.4 0.128
2001 35.4 0.124
2002 30.1 0.120
2003 24.4 0.117
2004 18.4 0.114
2005 12.2 0.112
2006 5.8 0.110
2007 359.2 0.109
2008 352.6 0.109
2009 346.0 0.110
2010 339.6 0.112
2011 333.4 0.114
2012 327.4 0.117
2013 321.8 0.120
2014 316.4 0.123
2015 311.4 0.127
2016 306.7 0.131
2017 302.3 0.135
2018 298.1 0.140
2019 294.2 0.144
2020 290.4 0.148
2021 286.9 0.152
2022 283.6 0.155
2023 280.4 0.159
2024 277.3 0.162
2025 274.4 0.166
2026 271.6 0.168
2027 268.8 0.171
2028 266.2 0.174
2029 263.6 0.176
2030 261.1 0.178
2031 258.6 0.180
2032 256.2 0.181
2033 253.8 0.183
2034 251.5 0.184
2035 249.2 0.185
2036 246.9 0.186
2037 244.6 0.187
2038 242.4 0.188
2039 240.1 0.189
2040 237.9 0.189
2041 235.7 0.189
2042 233.5 0.190
2043 231.3 0.190
2044 229.2 0.190
2045 227.0 0.190
2046 224.8 0.190
2047 222.6 0.190
2048 220.5 0.190
2049 218.3 0.190
2050 216.1 0.190


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds23179-5429a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic