19111+3847 SE    2BC

 
 
19h 11m 07.99s +38 46' 52.4" P.A. 280.8 sep 0.19 mag 8.31,9.40 Sp G5V dist. 52.85 pc (172.4 l.y.)
 
 
Coord 2000
19111+3847
Discov num
SE    2
Comp
BC
Coord arcsec 2000
19 11 07.99 +38 46 52.4
Date first
1856
Date last
2010
Obs
165
Pa first
93
Pa last
21
P.A. Now (θ)
280.8°
Sep first
0.4
Sep last
0.1
Sep. Now (ρ)
0.19"
Mag pri
8.31
Mag sec
9.40
delta mag (ΔM)
1.09
Spectral class
G5V (yellow)
Pri motion ra
-246
Sec motion ra
Pri motion dec
-102
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
19111+3847 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 19111+3847 STF2481 Aa,Ab 2012 2012 2 30 0.0 8.80 9.70 0.90
Show 19111+3847 STF2481 A,BC 1830 2013 257 19 4.7 8.39 8.31 0.08
Show 19111+3847 STF2481 AD 1984 2002 4 28 230.0 8.39 12.07 3.68
Show 19111+3847 SE 2 BC 1856 2010 165 281 0.2 8.31 9.40 1.09 Y <===
Show 19111+3847 TAR 4 DE 1888 2013 23 204 5.6 12.07 13.00 0.93
Sextuple system
6 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
21.2
Precise sep
0.142
Constellation
Lyra
HIP
94252
Tycho2
3121-00729-2
HD
179484
ADS
12145
Distance
52.85
Distance ly
172.4
last precise pa
21.2
last precise sep
0.142
 
 
ORBITAL ELEMENTS
 
 
Period (P)62.79y Periastron (T)1956.62y Semi-major axis (a)0.379a
Eccentricity (e)0.496 Inclination (i)113.4° Longitude of periastron (ω)4.6°
Node (Ω)271.5° Note Grade2(1=Definitive, 9=Indet.)
Equinox2000 Last observation2001
label rho theta
2000 0.436 76.8
2001 0.415 75.3
2002 0.393 73.5
2003 0.369 71.6
2004 0.344 69.3
2005 0.317 66.7
2006 0.289 63.6
2007 0.260 59.9
2008 0.231 55.2
2009 0.201 49.0
2010 0.172 40.8
2011 0.147 29.6
2012 0.126 14.1
2013 0.116 354.4
2014 0.118 333.3
2015 0.132 314.9
2016 0.151 300.6
2017 0.171 289.7
2018 0.186 280.8
2019 0.191 272.9
2020 0.186 265.0
2021 0.170 256.1
2022 0.148 244.9
2023 0.126 229.6
2024 0.110 208.7
2025 0.108 184.2
2026 0.122 162.3
2027 0.147 146.5
2028 0.178 135.6
2029 0.210 128.0
2030 0.242 122.4

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

grafico orbita





wds19111%2B3847a.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
19111+3847 SE 2 BC 2000 162 73 0.3 8.65 9.40 G5V NOD 191108.07+384649.3
19111+3847 SE 2 BC 2007 164 52 0.2 8.65 9.40 G5V NOD 191108.07+384649.3
19111+3847 SE 2 BC 2010 165 21 0.1 8.65 9.40 G5V NOD 191108.07+384649.3

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