17315-6026 I 600 (HD 158177)
17h 31m 30.25s -60° 26' 24.7" P.A. 151.00 sep 0.5 mag 8.52,9.91 Sp F0V dist. 160.51 pc (523.58 l.y.)
| Coord 2000 |
17315-6026 |
|
Discov num |
I 600 |
|
Comp |
|
|
Coord arcsec 2000 |
17 31 30.25 -60 26 24.7 |
|
| Date first |
1909 |
|
Date last |
2017 |
|
Obs |
27 |
|
| Pa first |
260 |
|
Pa last |
150.7 |
|
P.A. Now (θ) |
150.7° |
|
| Sep first |
0.4 |
|
Sep last |
0.518 |
|
Sep. Now (ρ) |
0.518" |
|
| Mag pri |
8.52 |
|
Mag sec |
9.91 |
|
delta mag (ΔM) |
1.39 |
|
Spectral class |
F0V (yellow-white) |
|
| Pri motion ra |
-009 |
|
Sec motion ra |
-009 |
|
| Pri motion dec |
-043 |
|
Sec motion dec |
-043 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 158177 |
|
Constellation |
Ara |
|
SAO |
253948 |
|
HIP |
85765 |
|
| Tycho2 |
9053-00205-1 |
|
Gaia DR2 |
5912431093259367936 |
|
HD |
158177 |
|
CP |
CP-60 6844 |
|
| Distance |
160.51 |
|
Distance ly |
523.58 |
|
ORBITAL ELEMENTS
| Period (P) | 333.9y | |
Periastron (T) | 2183.52y | |
Semi-major axis (a) | 0.5a | |
| Eccentricity (e) | 0.16 | |
Inclination (i) | 114.9° | |
Longitude of periastron (ω) | 148° | |
| Node (Ω) | 135.3° | |
Notes | n | |
Reference | Tok2020g | |
| Equinox | 2000 | |
Last observation | 2017 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
158.2 |
0.442 |
| 2001 |
157.7 |
0.447 |
| 2002 |
157.1 |
0.451 |
| 2003 |
156.6 |
0.455 |
| 2004 |
156.0 |
0.460 |
| 2005 |
155.5 |
0.464 |
| 2006 |
155.0 |
0.468 |
| 2007 |
154.5 |
0.473 |
| 2008 |
154.0 |
0.477 |
| 2009 |
153.5 |
0.481 |
| 2010 |
153.0 |
0.485 |
| 2011 |
152.5 |
0.489 |
| 2012 |
152.1 |
0.492 |
| 2013 |
151.6 |
0.496 |
| 2014 |
151.2 |
0.500 |
| 2015 |
150.7 |
0.503 |
| 2016 |
150.3 |
0.507 |
| 2017 |
149.9 |
0.510 |
| 2018 |
149.4 |
0.513 |
| 2019 |
149.0 |
0.517 |
| 2020 |
148.6 |
0.520 |
| 2021 |
148.2 |
0.523 |
| 2022 |
147.8 |
0.526 |
| 2023 |
147.4 |
0.528 |
| 2024 |
147.0 |
0.531 |
| 2025 |
146.6 |
0.534 |
| 2026 |
146.2 |
0.536 |
| 2027 |
145.8 |
0.539 |
| 2028 |
145.4 |
0.541 |
| 2029 |
145.0 |
0.544 |
| 2030 |
144.6 |
0.546 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
