16385-5728 TOK 51 Aa,Ab
16h 38m 31.07s -57° 28' 11.4" P.A. 25.00 sep 0.0 mag 8.70,12.70 Sp G9V dist. 36.4 pc (118.74 l.y.)
| Coord 2000 |
16385-5728 |
|
Discov num |
TOK 51 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
16 38 31.07 -57 28 11.4 |
|
| Date first |
2009 |
|
Date last |
2021 |
|
Obs |
15 |
|
| Pa first |
62 |
|
Pa last |
24.6 |
|
P.A. Now (θ) |
24.6° |
|
| Sep first |
0.3 |
|
Sep last |
0.048 |
|
Sep. Now (ρ) |
0.048" |
|
| Mag pri |
8.70 |
|
Mag sec |
12.70 |
|
delta mag (ΔM) |
4 |
|
Spectral class |
G9V (yellow) |
|
| Pri motion ra |
+095 |
|
Sec motion ra |
|
|
| Pri motion dec |
+005 |
|
Sec motion dec |
|
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
16385-5728 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
244010 |
16 38 31 -57 28 11 |
TOK 51 Aa,Ab |
2021 |
15 |
25 |
0.0 |
8.70 |
12.70 |
4.00 |
Y |
<=== |
| Show |
V841 Ara |
244010 |
16 38 31 -57 28 11 |
RST 869 AB |
2021 |
24 |
30 |
0.5 |
8.79 |
11.26 |
2.47 |
|
|
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Var name |
V841 Ara |
|
Constellation |
Ara |
|
SAO |
244010 |
|
HIP |
81478 |
|
| Tycho2 |
8720-01374-1 |
|
Gaia DR2 |
5927299651587437568 |
|
HD |
149499 |
|
CP |
CP-57 8088 |
|
| Distance |
36.4 |
|
Distance ly |
118.74 |
|
ORBITAL ELEMENTS
| Period (P) | 25y | |
Periastron (T) | 2027.73y | |
Semi-major axis (a) | 0.262a | |
| Eccentricity (e) | 0.328 | |
Inclination (i) | 95.8° | |
Longitude of periastron (ω) | 206.9° | |
| Node (Ω) | 59.9° | |
Notes | n | |
Reference | Tok2019c | |
| Equinox | | |
Last observation | 2018 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
245.7 |
0.151 |
| 2001 |
242.3 |
0.178 |
| 2002 |
239.4 |
0.178 |
| 2003 |
235.8 |
0.145 |
| 2004 |
228.3 |
0.083 |
| 2005 |
160.9 |
0.021 |
| 2006 |
75.9 |
0.078 |
| 2007 |
67.7 |
0.148 |
| 2008 |
64.7 |
0.208 |
| 2009 |
62.9 |
0.256 |
| 2010 |
61.7 |
0.293 |
| 2011 |
60.7 |
0.318 |
| 2012 |
59.8 |
0.332 |
| 2013 |
58.9 |
0.336 |
| 2014 |
58.1 |
0.330 |
| 2015 |
57.2 |
0.315 |
| 2016 |
56.2 |
0.292 |
| 2017 |
54.9 |
0.261 |
| 2018 |
53.3 |
0.223 |
| 2019 |
51.0 |
0.178 |
| 2020 |
46.9 |
0.129 |
| 2021 |
37.2 |
0.076 |
| 2022 |
351.5 |
0.030 |
| 2023 |
268.0 |
0.054 |
| 2024 |
251.5 |
0.106 |
| 2025 |
245.7 |
0.151 |
| 2026 |
242.3 |
0.178 |
| 2027 |
239.4 |
0.178 |
| 2028 |
235.8 |
0.145 |
| 2029 |
228.3 |
0.083 |
| 2030 |
160.9 |
0.021 |
|
|
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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