15151+3650 STT 295 (HD 135657)
15h 15m 03.25s +36° 49' 48.9" P.A. 153.00 sep 0.4 mag 8.80,9.45 Sp F5 dist. 130.21 pc (424.75 l.y.)
| Coord 2000 |
15151+3650 |
|
Discov num |
STT 295 |
|
Comp |
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Coord arcsec 2000 |
15 15 03.25 +36 49 48.9 |
|
| Date first |
1843 |
|
Date last |
2011 |
|
Obs |
57 |
|
| Pa first |
115 |
|
Pa last |
152.8 |
|
P.A. Now (θ) |
152.8° |
|
| Sep first |
0.8 |
|
Sep last |
0.36 |
|
Sep. Now (ρ) |
0.36" |
|
| Mag pri |
8.80 |
|
Mag sec |
9.45 |
|
delta mag (ΔM) |
0.65 |
|
Spectral class |
F5 (yellow-white) |
|
| Pri motion ra |
+019 |
|
Sec motion ra |
+019 |
|
| Pri motion dec |
+005 |
|
Sec motion dec |
+005 |
|
| Notes |
O
(Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 135657 |
|
Constellation |
Bootes |
|
SAO |
64586 |
|
HIP |
74643 |
|
| Tycho2 |
2569-00208-1 |
|
Gaia DR2 |
1292123804148160640 |
|
HD |
135657 |
|
GC |
20512 |
|
| ADS |
9554 |
|
BD |
BD+37 2621 |
|
Distance |
130.21 |
|
Distance ly |
424.75 |
|
ORBITAL ELEMENTS
| Period (P) | 233y | |
Periastron (T) | 2021y | |
Semi-major axis (a) | 0.487a | |
| Eccentricity (e) | 0.94 | |
Inclination (i) | 41.7° | |
Longitude of periastron (ω) | 173.3° | |
| Node (Ω) | 133.8° | |
Notes | | |
Reference | Zir2014a | |
| Equinox | 2000 | |
Last observation | 2009 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
144.8 |
0.450 |
| 2001 |
145.3 |
0.436 |
| 2002 |
145.8 |
0.422 |
| 2003 |
146.3 |
0.408 |
| 2004 |
146.9 |
0.393 |
| 2005 |
147.5 |
0.378 |
| 2006 |
148.2 |
0.362 |
| 2007 |
149.0 |
0.345 |
| 2008 |
149.8 |
0.328 |
| 2009 |
150.7 |
0.311 |
| 2010 |
151.7 |
0.292 |
| 2011 |
152.9 |
0.273 |
| 2012 |
154.2 |
0.253 |
| 2013 |
155.8 |
0.232 |
| 2014 |
157.7 |
0.210 |
| 2015 |
160.1 |
0.187 |
| 2016 |
163.2 |
0.162 |
| 2017 |
167.5 |
0.135 |
| 2018 |
174.0 |
0.106 |
| 2019 |
185.7 |
0.074 |
| 2020 |
215.8 |
0.042 |
| 2021 |
308.8 |
0.029 |
| 2022 |
33.9 |
0.042 |
| 2023 |
66.0 |
0.070 |
| 2024 |
79.4 |
0.099 |
| 2025 |
86.8 |
0.126 |
| 2026 |
91.7 |
0.152 |
| 2027 |
95.2 |
0.176 |
| 2028 |
97.9 |
0.198 |
| 2029 |
100.0 |
0.219 |
| 2030 |
101.8 |
0.240 |
|
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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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