19073+3606 STA   3 (Iot Lyr)

 
 
19h 07m 18.13s +36 06' 00.6" P.A. 214.2 sep 0.12 mag 5.28,6.40 Sp B6IV dist. 274.73 pc (896.17 l.y.)
 
 
Coord 2000
19073+3606
Discov num
STA   3
Comp
Coord arcsec 2000
19 07 18.13 +36 06 00.6
Date first
1981
Date last
2014
Obs
34
Pa first
67
Pa last
223
P.A. Now (θ)
214.2°
Sep first
0.1
Sep last
0.1
Sep. Now (ρ)
0.12"
Mag pri
5.28
Mag sec
6.40
delta mag (ΔM)
1.12
Spectral class
B6IV (blue-white)
Pri motion ra
+001
Sec motion ra
Pri motion dec
-004
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
223.4
Precise sep
0.078
Name
Iot Lyr
Cdsa2 id
STA 3
Constellation
Lyra
SAO
67834
HIP
93903
HD
178475
HR
7262
GC
26338
Bayer
Iota Lyrae
Bayer name
Iot Lyr
Flamsteed
18 Lyrae
Flamsteed name
18 Lyr
Ra deg
19.121702777777777
De deg
36.10016666666667
Distance
274.73
Distance ly
896.17
last precise pa
223.4
last precise sep
0.078
 
 
ORBITAL ELEMENTS
 
 
Period (P)216.93y Periastron (T)1997.28y Semi-major axis (a)0.172a
Eccentricity (e)0.637 Inclination (i)145.5° Longitude of periastron (ω)201.2°
Node (Ω)171.4° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2008
label rho theta
2000 0.059 310.0
2001 0.059 301.1
2002 0.060 292.3
2003 0.061 283.8
2004 0.063 275.7
2005 0.066 268.1
2006 0.069 261.2
2007 0.072 254.9
2008 0.076 249.1
2009 0.080 244.0
2010 0.084 239.3
2011 0.088 235.0
2012 0.092 231.2
2013 0.097 227.7
2014 0.101 224.5
2015 0.106 221.6
2016 0.110 219.0
2017 0.115 216.5
2018 0.119 214.2
2019 0.123 212.1
2020 0.128 210.1
2021 0.132 208.3
2022 0.136 206.5
2023 0.140 204.9
2024 0.144 203.4
2025 0.148 201.9
2026 0.152 200.5
2027 0.156 199.2
2028 0.160 198.0
2029 0.163 196.8
2030 0.167 195.6

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

grafico orbita





wds19073%2B3606a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19073+3606 STA 3 2006 26 78 0.1 5.28 6.40 B6IV NOD 190718.13+360600.6
19073+3606 STA 3 2008 31 246 0.1 5.28 6.40 B6IV NOD 190718.13+360600.6
19073+3606 STA 3 2014 34 223 0.1 5.28 6.40 B6IV NO 190718.13+360600.6

If you need more information about this double, apply for a data request form to the WDS.