15470+4143 HDS 2222 (HD 141347)
15h 47m 02.15s +41° 43' 11.0" P.A. 141.00 sep 0.0 mag 8.76,9.34 Sp F2 dist. 150.38 pc (490.54 l.y.)
| Coord 2000 |
15470+4143 |
|
Discov num |
HDS2222 |
|
Comp |
|
|
Coord arcsec 2000 |
15 47 02.15 +41 43 11.0 |
|
| Date first |
1991 |
|
Date last |
2012 |
|
Obs |
6 |
|
| Pa first |
266 |
|
Pa last |
141.1 |
|
P.A. Now (θ) |
265.3° |
|
| Sep first |
0.1 |
|
Sep last |
0.022 |
|
Sep. Now (ρ) |
0.105" |
|
| Mag pri |
8.76 |
|
Mag sec |
9.34 |
|
delta mag (ΔM) |
0.58 |
|
Spectral class |
F2 (yellow-white) |
|
| Pri motion ra |
-021 |
|
Sec motion ra |
|
|
| Pri motion dec |
+000 |
|
Sec motion dec |
|
|
| Notes |
O
(Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 141347 |
|
Constellation |
Bootes |
|
SAO |
45724 |
|
HIP |
77312 |
|
| Tycho2 |
3057-00019-1 |
|
Gaia DR2 |
1384092969650134400 |
|
HD |
141347 |
|
GC |
21229 |
|
| BD |
BD+42 2638 |
|
Distance |
150.38 |
|
Distance ly |
490.54 |
|
ORBITAL ELEMENTS
| Period (P) | 31.926y | ± 0.182 |
Periastron (T) | 2011.375y | ± 0.177 |
Semi-major axis (a) | 0.0848a | ± 0.003 |
| Eccentricity (e) | 0.488 | ± 0.021 |
Inclination (i) | 57.9° | ± 0.7 |
Longitude of periastron (ω) | 54.2° | ± 2.6 |
| Node (Ω) | 65.5° | ± 0.9 |
Notes | | |
Reference | Cve2017b | |
| Equinox | 2000 | |
Last observation | 2012 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
309.5 |
0.068 |
| 2001 |
318.3 |
0.063 |
| 2002 |
328.5 |
0.059 |
| 2003 |
340.0 |
0.056 |
| 2004 |
352.5 |
0.054 |
| 2005 |
5.5 |
0.054 |
| 2006 |
18.4 |
0.054 |
| 2007 |
30.8 |
0.056 |
| 2008 |
42.8 |
0.056 |
| 2009 |
54.9 |
0.054 |
| 2010 |
68.9 |
0.048 |
| 2011 |
89.7 |
0.037 |
| 2012 |
132.4 |
0.025 |
| 2013 |
188.7 |
0.030 |
| 2014 |
215.8 |
0.046 |
| 2015 |
228.8 |
0.062 |
| 2016 |
236.8 |
0.075 |
| 2017 |
242.6 |
0.086 |
| 2018 |
247.3 |
0.093 |
| 2019 |
251.4 |
0.099 |
| 2020 |
255.1 |
0.103 |
| 2021 |
258.6 |
0.105 |
| 2022 |
262.0 |
0.105 |
| 2023 |
265.3 |
0.105 |
| 2024 |
268.8 |
0.103 |
| 2025 |
272.4 |
0.101 |
| 2026 |
276.3 |
0.097 |
| 2027 |
280.4 |
0.093 |
| 2028 |
284.9 |
0.089 |
| 2029 |
290.0 |
0.083 |
| 2030 |
295.8 |
0.078 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
