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Current system
17176+1025
HDS 2445
V2369 Oph


Nearby doubles
38' : 17167+1100
BPM 678

41' : 17155+1052
HDS2440

48' : 17148+1000
STF2143

49' : 17148+1051
GRV 948

49' : 17173+0937
UC 3318

49' : 17174+1113
HU 172

55' : 17183+0931
STT 326

75' : 17138+1114
A 2785

77' : 17125+1035
B 2826

87' : 17119+1044
TDS 856

89' : 17122+0946
HU 170

90' : 17116+1008
DAM 974

97' : 17199+1155
UC 227

99' : 17233+0936
HEI 797

101' : 17173+0845
KPP4031

101' : 17218+0905
WIS 317

118' : 17096+1013
CVR 857

121' : 17217+1209
GWP2704

122' : 17159+0826
LDS4732

132' : 17219+0830
KPP3315

133' : 17245+0901
BRT3223

137' : 17086+0951
HU 167

138' : 17150+1238
HDS2439

140' : 17140+1234
TDT 275

141' : 17219+1230
HDS2451

147' : 17092+0907
DAM 910



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Neglected List I
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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

17176+1025 HDS 2445 (V2369 Oph)

 
 
17h 17m 34.67s +10° 24' 59.3" P.A. 165.00 sep 0.0 mag 8.86,10.25 Sp G5 dist. 69.49 pc (226.68 l.y.)
 
 
Coord 2000 17176+1025 Discov num HDS2445 Comp Coord arcsec 2000 17 17 34.67 +10 24 59.3
Date first 1991 Date last 2023 Obs 17
Pa first 86 Pa last 165.1 P.A. Now (θ) 103.1° (calc)
Sep first 0.3 Sep last 0.029 Sep. Now (ρ) 0.106" (calc)
Mag pri 8.86 Mag sec 10.25 delta mag (ΔM) 1.39 Spectral class G5 (yellow)
Pri motion ra +025 Sec motion ra
Pri motion dec -041 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name V2369 Oph Constellation Ophiuchus SAO 102718 HIP 84595
Tycho2 0982-02178-1 Gaia DR2 4539777137632191744 HD 156498 GC 23370
BD BD+10 3177 Distance 69.49 Distance ly 226.68
 
 
ORBITAL ELEMENTS
 
 
Period (P)44.37y± 1.71 Periastron (T)2010.6y± 1.13 Semi-major axis (a)0.2791a± 0.0096
Eccentricity (e)0.1266± 0.0228 Inclination (i)96.8°± 0.3 Longitude of periastron (ω)153.7°± 10.3
Node (Ω)84.6°± 0.4 Notes ReferenceTok2024b
Equinox2000 Last observation2024 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 75.6 0.170
2001 72.4 0.136
2002 66.9 0.099
2003 54.7 0.062
2004 15.7 0.033
2005 309.7 0.043
2006 286.5 0.077
2007 278.1 0.114
2008 273.7 0.149
2009 270.9 0.180
2010 268.9 0.206
2011 267.3 0.226
2012 266.0 0.240
2013 264.7 0.246
2014 263.5 0.246
2015 262.3 0.239
2016 260.9 0.225
2017 259.3 0.206
2018 257.3 0.181
2019 254.6 0.153
2020 250.7 0.122
2021 243.9 0.090
2022 229.5 0.058
2023 190.8 0.036
2024 136.1 0.044
2025 112.7 0.073
2026 103.1 0.106
2027 98.1 0.139
2028 95.0 0.170
2029 92.8 0.199
2030 91.1 0.226
2031 89.8 0.249
2032 88.7 0.269
2033 87.8 0.286
2034 86.9 0.298
2035 86.1 0.306
2036 85.3 0.310
2037 84.5 0.310
2038 83.7 0.305
2039 82.9 0.295
2040 82.0 0.281
2041 81.0 0.263
2042 79.8 0.240
2043 78.4 0.213
2044 76.5 0.183
2045 73.8 0.149
2046 69.3 0.113
2047 60.6 0.075
2048 36.2 0.041
2049 329.1 0.034
2050 292.2 0.063


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds17176%2B1025b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic