18439-0649 YSC 133 (HD 173093)
18h 43m 51.22s -06° 49' 04.8" P.A. 245.00 sep 0.0 mag 6.70,7.60 Sp F7V dist. 73.8 pc (240.74 l.y.)
Coord 2000 |
18439-0649 |
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Discov num |
YSC 133 |
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Comp |
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Coord arcsec 2000 |
18 43 51.22 -06 49 04.8 |
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Date first |
2008 |
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Date last |
2021 |
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Obs |
22 |
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Pa first |
171 |
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Pa last |
245.3 |
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P.A. Now (θ) |
167.5° |
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Sep first |
0.0 |
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Sep last |
0.046 |
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Sep. Now (ρ) |
0.033" |
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Mag pri |
6.70 |
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Mag sec |
7.60 |
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delta mag (ΔM) |
0.9 |
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Spectral class |
F7V (yellow-white) |
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Pri motion ra |
+030 |
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Sec motion ra |
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Pri motion dec |
-045 |
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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 173093 |
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Constellation |
Scutum |
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SAO |
142557 |
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HIP |
91880 |
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Tycho2 |
5125-00544-1 |
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Gaia DR2 |
4253157958461105664 |
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HD |
173093 |
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HR |
7034 |
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GC |
25617 |
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BD |
BD-06 4859 |
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Distance |
73.8 |
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Distance ly |
240.74 |
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ORBITAL ELEMENTS
Period (P) | 2642.5d (7.23y) | ± 1.5 |
Periastron (T) | 55470.035d (2010.748y) | ± 0.63 |
Semi-major axis (a) | 80.09m | ± 0.99 |
Eccentricity (e) | 0.6109 | ± 0.0013 |
Inclination (i) | 104.55° | ± 0.27 |
Longitude of periastron (ω) | 254.98° | ± 0.17 |
Node (Ω) | 286.62° | ± 0.66 |
Notes | | |
Reference | Hor2021b | |
Equinox | | |
Last observation | | |
Grade | 2 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000-01-01 |
240.2 |
0.043 |
2001-01-01 |
186.6 |
0.031 |
2002-01-01 |
136.1 |
0.045 |
2003-01-01 |
111.0 |
0.049 |
2004-01-01 |
290.7 |
0.048 |
2005-01-01 |
276.5 |
0.079 |
2006-01-01 |
265.5 |
0.070 |
2007-01-01 |
247.2 |
0.049 |
2008-01-01 |
202.3 |
0.031 |
2009-01-01 |
144.4 |
0.040 |
2010-01-01 |
116.6 |
0.053 |
2011-01-01 |
302.0 |
0.026 |
2012-01-01 |
279.0 |
0.077 |
2013-01-01 |
268.4 |
0.074 |
2014-01-01 |
252.9 |
0.054 |
2015-01-01 |
216.7 |
0.034 |
2016-01-01 |
154.8 |
0.036 |
2017-01-01 |
122.0 |
0.052 |
2018-01-01 |
53.3 |
0.010 |
2019-01-01 |
281.7 |
0.072 |
2020-01-01 |
271.0 |
0.077 |
2021-01-01 |
257.5 |
0.059 |
2022-01-01 |
228.6 |
0.037 |
2023-01-01 |
167.5 |
0.033 |
2024-01-01 |
127.7 |
0.050 |
2025-01-01 |
100.3 |
0.033 |
2026-01-01 |
284.8 |
0.065 |
2027-01-01 |
273.5 |
0.078 |
2028-01-01 |
261.4 |
0.064 |
2029-01-01 |
238.1 |
0.042 |
2030-01-01 |
182.5 |
0.031 |
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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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