14525+1844 BU 31 AB (HD 131334)
14h 52m 30.05s +18° 44' 19.5" P.A. 225.00 sep 1.8 mag 8.53,10.26 Sp G0V dist. 48.43 pc (157.98 l.y.)
| Coord 2000 |
14525+1844 |
|
Discov num |
BU 31 |
|
Comp |
AB |
|
Coord arcsec 2000 |
14 52 30.05 +18 44 19.5 |
|
| Date first |
1872 |
|
Date last |
2021 |
|
Obs |
89 |
|
| Pa first |
180 |
|
Pa last |
225.3 |
|
P.A. Now (θ) |
225.3° |
|
| Sep first |
1.0 |
|
Sep last |
1.83 |
|
Sep. Now (ρ) |
1.83" |
|
| Mag pri |
8.53 |
|
Mag sec |
10.26 |
|
delta mag (ΔM) |
1.73 |
|
Spectral class |
G0V (yellow) |
|
| Pri motion ra |
-026 |
|
Sec motion ra |
-026 |
|
| Pri motion dec |
+198 |
|
Sec motion dec |
+198 |
|
| Notes |
N
O
T
(See Notes, Orbital solution, Parallax indicates physical) |
|
This double is physical.
14525+1844 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 131334 |
101264 |
14 52 30 +18 44 20 |
BU 31 AB |
2021 |
89 |
225 |
1.8 |
8.53 |
10.26 |
1.73 |
Y |
<=== |
| Show |
|
101264 |
14 52 30 +18 44 20 |
BU 31 AC |
2016 |
23 |
163 |
8.2 |
8.53 |
12.50 |
3.97 |
|
|
| Show |
|
101264 |
14 52 30 +18 44 20 |
BU 31 AD |
2015 |
12 |
259 |
90.0 |
8.53 |
11.62 |
3.09 |
|
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Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 131334 |
|
Constellation |
Bootes |
|
SAO |
101264 |
|
HIP |
72764 |
|
| Tycho2 |
1481-00172-1 |
|
Gaia DR2 |
1236889597008101760 |
|
HD |
131334 |
|
GC |
20013 |
|
| ADS |
9423 |
|
BD |
BD+19 2874 |
|
Distance |
48.43 |
|
Distance ly |
157.98 |
|
ORBITAL ELEMENTS
| Period (P) | 2085.5y | |
Periastron (T) | 1915.06y | |
Semi-major axis (a) | 3.369a | |
| Eccentricity (e) | 0.453 | |
Inclination (i) | 64.8° | |
Longitude of periastron (ω) | 325.1° | |
| Node (Ω) | 215.4° | |
Notes | n | |
Reference | Hrt2014a | |
| Equinox | 2000 | |
Last observation | 2013 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
218.2 |
1.988 |
| 2001 |
218.3 |
1.990 |
| 2002 |
218.5 |
1.992 |
| 2003 |
218.7 |
1.993 |
| 2004 |
218.9 |
1.995 |
| 2005 |
219.1 |
1.997 |
| 2006 |
219.3 |
1.999 |
| 2007 |
219.5 |
2.000 |
| 2008 |
219.6 |
2.002 |
| 2009 |
219.8 |
2.003 |
| 2010 |
220.0 |
2.004 |
| 2011 |
220.2 |
2.006 |
| 2012 |
220.4 |
2.007 |
| 2013 |
220.6 |
2.008 |
| 2014 |
220.8 |
2.009 |
| 2015 |
220.9 |
2.010 |
| 2016 |
221.1 |
2.011 |
| 2017 |
221.3 |
2.012 |
| 2018 |
221.5 |
2.013 |
| 2019 |
221.7 |
2.014 |
| 2020 |
221.9 |
2.015 |
| 2021 |
222.0 |
2.016 |
| 2022 |
222.2 |
2.016 |
| 2023 |
222.4 |
2.017 |
| 2024 |
222.6 |
2.018 |
| 2025 |
222.8 |
2.018 |
| 2026 |
223.0 |
2.018 |
| 2027 |
223.1 |
2.019 |
| 2028 |
223.3 |
2.019 |
| 2029 |
223.5 |
2.019 |
| 2030 |
223.7 |
2.020 |
|
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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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