17533-3444 BU 1123 (HD 162586)
17h 53m 19.58s -34° 43' 50.9" P.A. 264.00 sep 0.3 mag 6.92,6.86 Sp B8V dist. 271.74 pc (886.42 l.y.)
Coord 2000 |
17533-3444 |
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Discov num |
BU 1123 |
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Comp |
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Coord arcsec 2000 |
17 53 19.58 -34 43 50.9 |
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Date first |
1889 |
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Date last |
2017 |
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Obs |
45 |
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Pa first |
213 |
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Pa last |
263.9 |
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P.A. Now (θ) |
263.9° |
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Sep first |
0.6 |
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Sep last |
0.347 |
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Sep. Now (ρ) |
0.347" |
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Mag pri |
6.92 |
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Mag sec |
6.86 |
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delta mag (ΔM) |
0.06 |
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Spectral class |
B8V (blue-white) |
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Pri motion ra |
+005 |
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Sec motion ra |
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Pri motion dec |
-007 |
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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 162586 |
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Constellation |
Scorpius |
|
SAO |
209411 |
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HIP |
87567 |
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Tycho2 |
7386-00732-1 |
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HD |
162586 |
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HR |
6657 |
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GC |
24290 |
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CD |
CD-3412200 |
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CP |
CP-34 7266 |
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Distance |
271.74 |
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Distance ly |
886.42 |
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ORBITAL ELEMENTS
Period (P) | 676.3y | |
Periastron (T) | 1960.7y | |
Semi-major axis (a) | 0.543a | |
Eccentricity (e) | 0.704 | |
Inclination (i) | 38.3° | |
Longitude of periastron (ω) | 115.9° | |
Node (Ω) | 38.9° | |
Notes | n | |
Reference | Doc2017l | |
Equinox | 2000 | |
Last observation | 2015 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
249.0 |
0.292 |
2001 |
250.0 |
0.295 |
2002 |
251.0 |
0.299 |
2003 |
251.9 |
0.302 |
2004 |
252.9 |
0.305 |
2005 |
253.8 |
0.308 |
2006 |
254.7 |
0.312 |
2007 |
255.6 |
0.315 |
2008 |
256.5 |
0.318 |
2009 |
257.3 |
0.321 |
2010 |
258.2 |
0.324 |
2011 |
259.0 |
0.327 |
2012 |
259.8 |
0.330 |
2013 |
260.6 |
0.333 |
2014 |
261.4 |
0.336 |
2015 |
262.2 |
0.339 |
2016 |
262.9 |
0.342 |
2017 |
263.7 |
0.345 |
2018 |
264.4 |
0.348 |
2019 |
265.1 |
0.350 |
2020 |
265.8 |
0.353 |
2021 |
266.5 |
0.356 |
2022 |
267.2 |
0.359 |
2023 |
267.9 |
0.362 |
2024 |
268.5 |
0.364 |
2025 |
269.2 |
0.367 |
2026 |
269.8 |
0.370 |
2027 |
270.5 |
0.373 |
2028 |
271.1 |
0.375 |
2029 |
271.7 |
0.378 |
2030 |
272.3 |
0.381 |
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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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