18466+3821 HU 1191 (V595 Lyr)

 
 
18H 46M 34.62S +38 21' 04.0" P.A. 322.5 SEP 0.25 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
2008
Obs
60
Pa first
279
Pa last
258
P.A. Now (θ)
322.5°
Sep first
0.2
Sep last
0.2
Sep. Now (ρ)
0.25"
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
HIP
92122
HD
173950
ADS
11680
BD
BD+38 3292
Distance
35.61
Distance ly
116.16
last precise pa
258
last precise sep
0.235
 
 
ORBITAL ELEMENTS
 
 
Period (P)14.64y± 0.2 Periastron (T)1996.64y± 0.04 Semi-major axis (a)0.191a± 0.001
Eccentricity (e)0.462± 0.004 Inclination (i)149.3°± 0.5 Longitude of periastron (ω)303.9°± 1
Node (Ω)84°± 0.5 Note Grade1(1=Definitive, 9=Indet.)
Equinox2000 Last observation1998
label rho theta
2000 0.189 10.0
2001 0.211 352.9
2002 0.230 338.8
2003 0.244 326.6
2004 0.253 315.6
2005 0.256 305.1
2006 0.252 294.5
2007 0.239 283.3
2008 0.215 270.1
2009 0.178 252.4
2010 0.128 222.6
2011 0.091 158.9
2012 0.116 89.3
2013 0.148 49.7
2014 0.174 23.2
2015 0.197 3.4
2016 0.218 347.5
2017 0.235 334.2
2018 0.248 322.5
2019 0.255 311.8
2020 0.256 301.3
2021 0.248 290.6
2022 0.232 278.8
2023 0.203 264.4
2024 0.161 243.8
2025 0.109 204.9
2026 0.095 129.8
2027 0.128 72.7
2028 0.158 39.1
2029 0.183 15.5
2030 0.205 357.3

Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.

grafico orbita





grafico misure orbit6
Measures: green=micrometric, blue=interferometric, purple=photographic