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Doubles in session


Current system
18466+3821
HU 1191
V595 Lyr


Nearby doubles
17' : 18452+3819
STF2393AB

30' : 18451+3756
ES 2020

32' : 18466+3853
ES 2021AB

36' : 18496+3819
FYM 173

36' : 18463+3745
ES 2484

36' : 18496+3818
AG 226

38' : 18453+3856
COU1608

40' : 18432+3822
HDS2651

41' : 18480+3858
ES 2572

46' : 18483+3741
UC 3677

50' : 18448+3736
BU 968AB

53' : 18445+3733
ES 2482

56' : 18452+3914
STF2392AB

60' : 18490+3914
COU1610

69' : 18433+3918
BLL 35

71' : 18481+3929
COU1609

71' : 18446+3715
UC 3660

73' : 18516+3739
ES 2025AB

75' : 18402+3822
HDS2644

77' : 18507+3920
HDS2672

81' : 18399+3806
HU 1190

82' : 18520+3731
ES 2026AB

82' : 18457+3942
BU 51AB

83' : 18536+3814
UC 3713

84' : 18443+3940
STF2382AB

84' : 18397+3800
MET 86AB



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.

18466+3821 HU 1191 (V595 Lyr)

 
 
18h 46m 34.62s +38° 21' 04.0" P.A. 338.00 sep 0.2 mag 8.67,9.42 Sp G9V dist. 35.61 pc (116.16 l.y.)
 
 
Coord 2000 18466+3821 Discov num HU 1191 Comp Coord arcsec 2000 18 46 34.62 +38 21 04.0
Date first 1905 Date last 2016 Obs 62
Pa first 279 Pa last 338.4 P.A. Now (θ) 204.9°
Sep first 0.2 Sep last 0.218 Sep. Now (ρ) 0.109"
Mag pri 8.67 Mag sec 9.42 delta mag (ΔM) 0.75 Spectral class G9V (yellow)
Pri motion ra +026 Sec motion ra
Pri motion dec -090 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name V595 Lyr Constellation Lyra SAO 67373 HIP 92122
Tycho2 3118-01317-1 Gaia DR2 2097340974270989312 HD 173950 ADS 11680
BD BD+38 3292 Distance 35.61 Distance ly 116.16
 
 
ORBITAL ELEMENTS
 
 
Period (P)14.639y± 0.1 Periastron (T)1996.697± 0.1 Semi-major axis (a)0.196a± 0.002
Eccentricity (e)0.473± 0.003 Inclination (i)143.7°± 1 Longitude of periastron (ω)296.7°± 0.5
Node (Ω)73.2°± 0.5 Notesn ReferenceDoc2024b
Equinox2000 Last observation2023 Grade1(1=Definitive, 9=Indet.)
label theta rho
2000 8.6 0.186
2001 351.0 0.204
2002 336.0 0.220
2003 323.1 0.234
2004 311.4 0.245
2005 300.5 0.251
2006 289.9 0.250
2007 278.8 0.241
2008 266.4 0.221
2009 250.4 0.187
2010 224.2 0.135
2011 161.9 0.086
2012 85.7 0.114
2013 47.4 0.150
2014 21.9 0.174
2015 1.9 0.193
2016 345.3 0.210
2017 331.2 0.226
2018 318.7 0.239
2019 307.4 0.248
2020 296.7 0.251
2021 286.0 0.248
2022 274.6 0.235
2023 261.2 0.211
2024 242.8 0.170
2025 208.2 0.113
2026 129.1 0.088
2027 69.3 0.129
2028 37.3 0.160
2029 14.2 0.181
2030 355.5 0.199
2031 340.0 0.216
2032 326.5 0.231
2033 314.6 0.242
2034 303.5 0.250
2035 292.9 0.251
2036 282.0 0.245
2037 270.1 0.228
2038 255.4 0.198
2039 233.4 0.151
2040 185.3 0.094
2041 101.8 0.102
2042 56.1 0.142
2043 28.3 0.168
2044 7.0 0.188
2045 349.6 0.205
2046 334.9 0.222
2047 322.1 0.235
2048 310.5 0.246
2049 299.6 0.251
2050 289.0 0.250


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds18466%2B3821c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic