19111+3847 SE 2 BC
19h 11m 07.99s +38° 46' 52.4" P.A. 21.00 sep 0.1 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 |
21.2 |
|
P.A. Now (θ) |
229.6° |
|
| Sep first |
0.4 |
|
Sep last |
0.142 |
|
Sep. Now (ρ) |
0.126" |
|
| 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 |
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|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
19111+3847 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
67936 |
19 11 08 +38 46 48 |
STF 2481 Aa,Ab |
2012 |
2 |
30 |
0.0 |
8.80 |
9.70 |
0.90 |
|
|
| Show |
HD 179484 |
67936 |
19 11 08 +38 46 48 |
STF 2481 A,BC |
2021 |
267 |
18 |
4.7 |
8.39 |
8.31 |
0.08 |
|
|
| Show |
|
67936 |
19 11 08 +38 46 48 |
STF 2481 AD |
2002 |
4 |
28 |
230.0 |
8.39 |
12.07 |
3.68 |
|
|
| Show |
|
|
19 11 08 +38 46 52 |
SE 2 BC |
2010 |
165 |
21 |
0.1 |
8.31 |
9.40 |
1.09 |
Y |
<=== |
| Show |
|
|
19 11 17 +38 50 11 |
TAR 4 DE |
2015 |
26 |
204 |
5.6 |
12.07 |
13.00 |
0.93 |
|
|
Sextuple system
6 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Lyra |
|
HIP |
94252 |
|
Tycho2 |
3121-00729-2 |
|
Gaia DR2 |
2099582088203052672 |
|
| HD |
179484 |
|
ADS |
12145 |
|
BD |
BD+38 3466 |
|
Distance |
52.85 |
|
| Distance ly |
172.4 |
|
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° | |
Notes | n | |
Reference | USN2006a | |
| Equinox | 2000 | |
Last observation | 2001 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
76.8 |
0.436 |
| 2001 |
75.3 |
0.415 |
| 2002 |
73.5 |
0.393 |
| 2003 |
71.6 |
0.369 |
| 2004 |
69.3 |
0.344 |
| 2005 |
66.7 |
0.317 |
| 2006 |
63.6 |
0.289 |
| 2007 |
59.9 |
0.260 |
| 2008 |
55.2 |
0.231 |
| 2009 |
49.0 |
0.201 |
| 2010 |
40.8 |
0.172 |
| 2011 |
29.6 |
0.147 |
| 2012 |
14.1 |
0.126 |
| 2013 |
354.4 |
0.116 |
| 2014 |
333.3 |
0.118 |
| 2015 |
314.9 |
0.132 |
| 2016 |
300.6 |
0.151 |
| 2017 |
289.7 |
0.171 |
| 2018 |
280.8 |
0.186 |
| 2019 |
272.9 |
0.191 |
| 2020 |
265.0 |
0.186 |
| 2021 |
256.1 |
0.170 |
| 2022 |
244.9 |
0.148 |
| 2023 |
229.6 |
0.126 |
| 2024 |
208.7 |
0.110 |
| 2025 |
184.2 |
0.108 |
| 2026 |
162.3 |
0.122 |
| 2027 |
146.5 |
0.147 |
| 2028 |
135.6 |
0.178 |
| 2029 |
128.0 |
0.210 |
| 2030 |
122.4 |
0.242 |
|
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Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
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Measures: green=micrometric, blue=interferometric, purple=photographic |
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