15379+5005 HDS 2203 (HD 139779)
15h 37m 55.38s +50° 04' 55.8" P.A. 296.00 sep 0.1 mag 8.03,9.84 Sp G0 dist. 46.45 pc (151.52 l.y.)
| Coord 2000 |
15379+5005 |
|
Discov num |
HDS2203 |
|
Comp |
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Coord arcsec 2000 |
15 37 55.38 +50 04 55.8 |
|
| Date first |
1991 |
|
Date last |
2014 |
|
Obs |
16 |
|
| Pa first |
122 |
|
Pa last |
296.1 |
|
P.A. Now (θ) |
202.7° |
|
| Sep first |
0.2 |
|
Sep last |
0.107 |
|
Sep. Now (ρ) |
0.047" |
|
| Mag pri |
8.03 |
|
Mag sec |
9.84 |
|
delta mag (ΔM) |
1.81 |
|
Spectral class |
G0 (yellow) |
|
| Pri motion ra |
-014 |
|
Sec motion ra |
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|
| Pri motion dec |
-250 |
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Sec motion dec |
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| Notes |
O
(Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 139779 |
|
Constellation |
Bootes |
|
SAO |
29598 |
|
HIP |
76540 |
|
| Tycho2 |
3489-00506-1 |
|
Gaia DR2 |
1402707735867528192 |
|
HD |
139779 |
|
GC |
21040 |
|
| BD |
BD+50 2204 |
|
Distance |
46.45 |
|
Distance ly |
151.52 |
|
ORBITAL ELEMENTS
| Period (P) | 26.31y | |
Periastron (T) | 2013.88y | |
Semi-major axis (a) | 0.23a | |
| Eccentricity (e) | 0.372 | |
Inclination (i) | 80.8° | |
Longitude of periastron (ω) | 297.8° | |
| Node (Ω) | 117.2° | |
Notes | | |
Reference | Cve2013b | |
| Equinox | 2000 | |
Last observation | 2010 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
276.5 |
0.131 |
| 2001 |
281.5 |
0.162 |
| 2002 |
285.0 |
0.191 |
| 2003 |
287.6 |
0.215 |
| 2004 |
289.7 |
0.235 |
| 2005 |
291.5 |
0.249 |
| 2006 |
293.2 |
0.257 |
| 2007 |
294.8 |
0.256 |
| 2008 |
296.5 |
0.246 |
| 2009 |
298.4 |
0.225 |
| 2010 |
300.9 |
0.191 |
| 2011 |
304.8 |
0.142 |
| 2012 |
314.1 |
0.080 |
| 2013 |
27.6 |
0.024 |
| 2014 |
102.7 |
0.078 |
| 2015 |
112.5 |
0.135 |
| 2016 |
117.1 |
0.168 |
| 2017 |
120.6 |
0.178 |
| 2018 |
124.1 |
0.169 |
| 2019 |
128.3 |
0.149 |
| 2020 |
134.2 |
0.122 |
| 2021 |
143.9 |
0.091 |
| 2022 |
163.2 |
0.062 |
| 2023 |
202.7 |
0.047 |
| 2024 |
243.9 |
0.060 |
| 2025 |
264.4 |
0.089 |
| 2026 |
274.4 |
0.121 |
| 2027 |
280.2 |
0.153 |
| 2028 |
284.0 |
0.182 |
| 2029 |
286.9 |
0.208 |
| 2030 |
289.1 |
0.229 |
|
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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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