15160-0454 STF 3091 AB
15h 16m 01.56s -04° 53' 52.3" P.A. 226.00 sep 0.4 mag 7.74,8.48 Sp F7V dist. 62.54 pc (204.01 l.y.)
| Coord 2000 |
15160-0454 |
|
Discov num |
STF3091 |
|
Comp |
AB |
|
Coord arcsec 2000 |
15 16 01.56 -04 53 52.3 |
|
| Date first |
1832 |
|
Date last |
2021 |
|
Obs |
110 |
|
| Pa first |
227 |
|
Pa last |
226.2 |
|
P.A. Now (θ) |
225.1° |
|
| Sep first |
0.5 |
|
Sep last |
0.366 |
|
Sep. Now (ρ) |
0.299" |
|
| Mag pri |
7.74 |
|
Mag sec |
8.48 |
|
delta mag (ΔM) |
0.74 |
|
Spectral class |
F7V (yellow-white) |
|
| Pri motion ra |
+023 |
|
Sec motion ra |
+023 |
|
| Pri motion dec |
-029 |
|
Sec motion dec |
-029 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
15160-0454 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
140421 |
15 16 02 -04 53 52 |
STF 3091 AB |
2021 |
110 |
226 |
0.4 |
7.74 |
8.48 |
0.74 |
Y |
<=== |
| Show |
HD 135578 |
140421 |
15 16 02 -04 53 52 |
STF 3091 AB,E |
2015 |
7 |
46 |
41.3 |
7.30 |
12.00 |
4.70 |
|
|
Triple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Libra |
|
SAO |
140421 |
|
HIP |
74703 |
|
Tycho2 |
5010-00815-1 |
|
| HD |
135578 |
|
ADS |
9557 |
|
BD |
BD-04 3847 |
|
Distance |
62.54 |
|
| Distance ly |
204.01 |
|
ORBITAL ELEMENTS
| Period (P) | 143.22y | |
Periastron (T) | 2027.99y | |
Semi-major axis (a) | 0.691a | |
| Eccentricity (e) | 0.799 | |
Inclination (i) | 93° | |
Longitude of periastron (ω) | 104.7° | |
| Node (Ω) | 225.2° | |
Notes | n | |
Reference | Msn2019 | |
| Equinox | 2000 | |
Last observation | 2018 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
228.8 |
0.580 |
| 2001 |
228.7 |
0.579 |
| 2002 |
228.6 |
0.578 |
| 2003 |
228.5 |
0.576 |
| 2004 |
228.3 |
0.574 |
| 2005 |
228.2 |
0.571 |
| 2006 |
228.1 |
0.568 |
| 2007 |
228.0 |
0.563 |
| 2008 |
227.9 |
0.558 |
| 2009 |
227.7 |
0.552 |
| 2010 |
227.6 |
0.545 |
| 2011 |
227.5 |
0.538 |
| 2012 |
227.4 |
0.529 |
| 2013 |
227.2 |
0.518 |
| 2014 |
227.1 |
0.507 |
| 2015 |
226.9 |
0.494 |
| 2016 |
226.8 |
0.479 |
| 2017 |
226.6 |
0.463 |
| 2018 |
226.4 |
0.444 |
| 2019 |
226.2 |
0.422 |
| 2020 |
226.0 |
0.398 |
| 2021 |
225.7 |
0.370 |
| 2022 |
225.4 |
0.337 |
| 2023 |
225.1 |
0.299 |
| 2024 |
224.6 |
0.254 |
| 2025 |
223.8 |
0.199 |
| 2026 |
222.4 |
0.133 |
| 2027 |
217.1 |
0.053 |
| 2028 |
56.2 |
0.037 |
| 2029 |
47.7 |
0.117 |
| 2030 |
45.9 |
0.177 |
|
|
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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