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Doubles in session


Current system
22378-5004
HDS 3214
HD 214218


Nearby doubles
31' : 22376-5035
TDT3623

42' : 22403-4931
BRG 33

58' : 22334-4924
RST1136

67' : 22352-4903
TDT3606

69' : 22445-4943
TDT3684

76' : 22310-4926
HDO 299AB

83' : 22375-4842
UC 4781

85' : 22315-4905
SKF1180

86' : 22429-4855
KPP3085

94' : 22475-5011
RST1146

96' : 22361-5138
WIS 370

100' : 22288-4915
RST1133AB

101' : 22273-5004
HU 1639

105' : 22461-4858
FMR 175

105' : 22299-4852
AOT 111

109' : 22274-4922
KAN 2

111' : 22340-5149
RST1137

114' : 22304-5133
HU 1640

117' : 22291-4844
AOT 110

119' : 22453-4831
RST1142

121' : 22299-4831
RST1134

122' : 22262-4918
AOT 109

123' : 22323-4814
UC 4762

125' : 22294-4830
HDS3186

126' : 22447-4818
UC 4805

132' : 22244-4941
AOT 108



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.

22378-5004 HDS 3214 (HD 214218)

 
 
22h 37m 46.51s -50° 03' 59.8" P.A. 302.00 sep 0.1 mag 8.82,9.41 Sp F2IV dist. 213.22 pc (695.52 l.y.)
 
 
Coord 2000 22378-5004 Discov num HDS3214 Comp Coord arcsec 2000 22 37 46.51 -50 03 59.8
Date first 1991 Date last 2023 Obs 16
Pa first 195 Pa last 301.7 P.A. Now (θ) 281.6° (calc)
Sep first 0.1 Sep last 0.059 Sep. Now (ρ) 0.091" (calc)
Mag pri 8.82 Mag sec 9.41 delta mag (ΔM) 0.59 Spectral class F2IV (yellow-white)
Pri motion ra +027 Sec motion ra
Pri motion dec -016 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 214218 Constellation Grus SAO 247520 HIP 111714
Tycho2 8452-00398-1 Gaia DR2 6516864142917463424 HD 214218 CD CD-5013742
CP CP-5011721 Distance 213.22 Distance ly 695.52
 
 
ORBITAL ELEMENTS
 
 
Period (P)68.4y± 8.5 Periastron (T)2020.371y± 0.043 Semi-major axis (a)0.124a± 0.0101
Eccentricity (e)0.7269± 0.023 Inclination (i)142.2°± 2 Longitude of periastron (ω)64.8°± 4.5
Node (Ω)104.8°± 3.7 Notes ReferenceTok2024e
Equinox2000 Last observation2024 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 203.6 0.150
2001 201.6 0.147
2002 199.5 0.143
2003 197.3 0.139
2004 195.0 0.135
2005 192.5 0.131
2006 189.9 0.127
2007 187.1 0.122
2008 184.0 0.118
2009 180.7 0.113
2010 177.0 0.107
2011 173.0 0.102
2012 168.5 0.096
2013 163.5 0.090
2014 157.6 0.084
2015 150.8 0.077
2016 142.6 0.069
2017 132.3 0.061
2018 118.7 0.052
2019 98.8 0.042
2020 64.5 0.031
2021 9.5 0.028
2022 328.4 0.039
2023 307.8 0.054
2024 295.8 0.068
2025 287.6 0.080
2026 281.6 0.091
2027 276.8 0.100
2028 272.8 0.109
2029 269.3 0.117
2030 266.3 0.124
2031 263.6 0.130
2032 261.1 0.136
2033 258.8 0.142
2034 256.7 0.146
2035 254.7 0.151
2036 252.8 0.155
2037 251.0 0.158
2038 249.3 0.162
2039 247.7 0.165
2040 246.1 0.167
2041 244.5 0.170
2042 243.0 0.172
2043 241.6 0.174
2044 240.1 0.175
2045 238.7 0.177
2046 237.3 0.178
2047 235.9 0.179
2048 234.5 0.179
2049 233.2 0.180
2050 231.8 0.180


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds22378-5004c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic