16458-0046 A 1141 (HD 151168)
16h 45m 46.43s -00° 45' 53.8" P.A. 57.00 sep 0.1 mag 9.10,9.20 Sp F7V+F8V dist. 106.95 pc (348.87 l.y.)
| Coord 2000 |
16458-0046 |
|
Discov num |
A 1141 |
|
Comp |
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Coord arcsec 2000 |
16 45 46.43 -00 45 53.8 |
|
| Date first |
1905 |
|
Date last |
2021 |
|
Obs |
52 |
|
| Pa first |
199 |
|
Pa last |
56.5 |
|
P.A. Now (θ) |
29.1° |
|
| Sep first |
0.2 |
|
Sep last |
0.076 |
|
Sep. Now (ρ) |
0.121" |
|
| Mag pri |
9.10 |
|
Mag sec |
9.20 |
|
delta mag (ΔM) |
0.1 |
|
Spectral class |
F7V+F8V (yellow-white/yellow-white) |
|
| Pri motion ra |
+070 |
|
Sec motion ra |
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| Pri motion dec |
-082 |
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Sec motion dec |
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| Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 151168 |
|
Constellation |
Ophiuchus |
|
SAO |
141350 |
|
HIP |
82062 |
|
| Tycho2 |
5050-00982-1 |
|
HD |
151168 |
|
ADS |
10196 |
|
BD |
BD-00 3178 |
|
| Distance |
106.95 |
|
Distance ly |
348.87 |
|
ORBITAL ELEMENTS
| Period (P) | 30.8y | |
Periastron (T) | 1957.3y | |
Semi-major axis (a) | 0.113a | |
| Eccentricity (e) | 0.86 | |
Inclination (i) | 124° | |
Longitude of periastron (ω) | 191.4° | |
| Node (Ω) | 20° | |
Notes | n | |
Reference | Hei1982c | |
| Equinox | 2000 | |
Last observation | 1980 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
17.1 |
0.202 |
| 2001 |
16.1 |
0.205 |
| 2002 |
15.1 |
0.207 |
| 2003 |
14.1 |
0.208 |
| 2004 |
13.1 |
0.207 |
| 2005 |
12.1 |
0.205 |
| 2006 |
11.0 |
0.201 |
| 2007 |
10.0 |
0.196 |
| 2008 |
8.8 |
0.190 |
| 2009 |
7.6 |
0.183 |
| 2010 |
6.3 |
0.174 |
| 2011 |
4.8 |
0.164 |
| 2012 |
3.1 |
0.151 |
| 2013 |
1.0 |
0.137 |
| 2014 |
358.5 |
0.121 |
| 2015 |
355.0 |
0.103 |
| 2016 |
349.9 |
0.081 |
| 2017 |
340.6 |
0.056 |
| 2018 |
312.0 |
0.027 |
| 2019 |
174.4 |
0.014 |
| 2020 |
51.9 |
0.041 |
| 2021 |
38.3 |
0.074 |
| 2022 |
32.6 |
0.100 |
| 2023 |
29.1 |
0.121 |
| 2024 |
26.6 |
0.139 |
| 2025 |
24.6 |
0.154 |
| 2026 |
22.9 |
0.167 |
| 2027 |
21.5 |
0.177 |
| 2028 |
20.2 |
0.186 |
| 2029 |
19.0 |
0.193 |
| 2030 |
17.9 |
0.199 |
|
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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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