15160-7025 HDS 2146 (HD 134735)
15h 15m 58.53s -70° 24' 48.9" P.A. 197.00 sep 0.2 mag 7.31,7.92 Sp F5IV dist. 112.74 pc (367.76 l.y.)
| Coord 2000 |
15160-7025 |
|
Discov num |
HDS2146 |
|
Comp |
|
|
Coord arcsec 2000 |
15 15 58.53 -70 24 48.9 |
|
| Date first |
1991 |
|
Date last |
2021 |
|
Obs |
9 |
|
| Pa first |
201 |
|
Pa last |
197 |
|
P.A. Now (θ) |
197° |
|
| Sep first |
0.2 |
|
Sep last |
0.166 |
|
Sep. Now (ρ) |
0.166" |
|
| Mag pri |
7.31 |
|
Mag sec |
7.92 |
|
delta mag (ΔM) |
0.61 |
|
Spectral class |
F5IV (yellow-white) |
|
| Pri motion ra |
-013 |
|
Sec motion ra |
|
|
| Pri motion dec |
-046 |
|
Sec motion dec |
|
|
| Notes |
O
(Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 134735 |
|
Constellation |
Triangulum Australe |
|
SAO |
257258 |
|
HIP |
74701 |
|
| Tycho2 |
9263-03172-1 |
|
Gaia DR2 |
5798987125644465408 |
|
HD |
134735 |
|
GC |
20470 |
|
| CP |
CP-69 2281 |
|
Distance |
112.74 |
|
Distance ly |
367.76 |
|
ORBITAL ELEMENTS
| Period (P) | 31.224y | |
Periastron (T) | 2014.313y | |
Semi-major axis (a) | 0.129a | |
| Eccentricity (e) | 0.75 | |
Inclination (i) | 34.6° | |
Longitude of periastron (ω) | 242.8° | |
| Node (Ω) | 165° | |
Notes | n | |
Reference | Tok2018e | |
| Equinox | 2000 | |
Last observation | 2018 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
226.6 |
0.192 |
| 2001 |
229.5 |
0.189 |
| 2002 |
232.5 |
0.184 |
| 2003 |
235.7 |
0.179 |
| 2004 |
239.0 |
0.173 |
| 2005 |
242.7 |
0.165 |
| 2006 |
246.7 |
0.157 |
| 2007 |
251.2 |
0.147 |
| 2008 |
256.4 |
0.137 |
| 2009 |
262.5 |
0.125 |
| 2010 |
270.1 |
0.111 |
| 2011 |
279.8 |
0.096 |
| 2012 |
293.6 |
0.079 |
| 2013 |
316.0 |
0.059 |
| 2014 |
7.5 |
0.034 |
| 2015 |
120.7 |
0.039 |
| 2016 |
156.8 |
0.072 |
| 2017 |
171.3 |
0.099 |
| 2018 |
180.2 |
0.119 |
| 2019 |
186.6 |
0.136 |
| 2020 |
191.7 |
0.150 |
| 2021 |
196.0 |
0.161 |
| 2022 |
199.8 |
0.171 |
| 2023 |
203.2 |
0.178 |
| 2024 |
206.4 |
0.184 |
| 2025 |
209.4 |
0.189 |
| 2026 |
212.2 |
0.192 |
| 2027 |
215.0 |
0.195 |
| 2028 |
217.8 |
0.196 |
| 2029 |
220.5 |
0.196 |
| 2030 |
223.2 |
0.195 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
