18099+0307 YSC 132 Aa,Ab
18h 09m 54.01s +03° 07' 13.1" P.A. 357.00 sep 0.0 mag 6.10,7.10 Sp F7V+F7.5V dist. 46.93 pc (153.09 l.y.)
Coord 2000 |
18099+0307 |
|
Discov num |
YSC 132 |
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Comp |
Aa,Ab |
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Coord arcsec 2000 |
18 09 54.01 +03 07 13.1 |
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Date first |
2008 |
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Date last |
2021 |
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Obs |
21 |
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Pa first |
320 |
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Pa last |
357.2 |
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P.A. Now (θ) |
357.2° |
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Sep first |
0.0 |
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Sep last |
0.012 |
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Sep. Now (ρ) |
0.012" |
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Mag pri |
6.10 |
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Mag sec |
7.10 |
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delta mag (ΔM) |
1 |
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Spectral class |
F7V+F7.5V (yellow-white/yellow-white) |
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Pri motion ra |
+014 |
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Sec motion ra |
|
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Pri motion dec |
-193 |
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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.
18099+0307 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
123198 |
18 09 54 +03 07 13 |
YSC 132 Aa,Ab |
2021 |
21 |
357 |
0.0 |
6.10 |
7.10 |
1.00 |
Y |
<=== |
Show |
HD 166285 |
123198 |
18 09 54 +03 07 13 |
BU 637 AB |
2016 |
14 |
191 |
7.2 |
5.69 |
11.70 |
6.01 |
|
|
Show |
|
123198 |
18 09 54 +03 07 13 |
BU 637 AC |
2000 |
6 |
245 |
98.2 |
5.69 |
10.90 |
5.21 |
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Quadruple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Ophiuchus |
|
SAO |
123198 |
|
HIP |
89000 |
|
Tycho2 |
0435-04799-1 |
|
Gaia DR2 |
4469921487441710208 |
|
HD |
166285 |
|
HR |
6797 |
|
ADS |
11113 |
|
BD |
BD+03 3613 |
|
Distance |
46.93 |
|
Distance ly |
153.09 |
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ORBITAL ELEMENTS
Period (P) | 0.54643y | ± 0.00006 |
Periastron (T) | 1990.675y | ± 0.001 |
Semi-major axis (a) | 0.019a | ± 0.0005 |
Eccentricity (e) | 0.302 | ± 0.002 |
Inclination (i) | 146.3° | ± 1.3 |
Longitude of periastron (ω) | 86.65° | ± 0.27 |
Node (Ω) | 51.2° | ± 2.4 |
Notes | n | |
Reference | Mdz2017 | |
Equinox | 2000 | |
Last observation | | |
Grade | 2 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
275.4 |
0.013 |
2001 |
34.1 |
0.015 |
2002 |
89.0 |
0.020 |
2003 |
131.7 |
0.020 |
2004 |
172.8 |
0.021 |
2005 |
215.4 |
0.019 |
2006 |
288.5 |
0.012 |
2007 |
42.4 |
0.016 |
2008 |
94.1 |
0.020 |
2009 |
136.5 |
0.021 |
2010 |
177.5 |
0.021 |
2011 |
221.0 |
0.019 |
2012 |
303.5 |
0.011 |
2013 |
49.9 |
0.017 |
2014 |
99.1 |
0.020 |
2015 |
141.3 |
0.021 |
2016 |
182.2 |
0.021 |
2017 |
227.0 |
0.018 |
2018 |
319.8 |
0.011 |
2019 |
56.8 |
0.018 |
2020 |
104.1 |
0.020 |
2021 |
146.1 |
0.021 |
2022 |
186.9 |
0.021 |
2023 |
233.5 |
0.017 |
2024 |
336.3 |
0.011 |
2025 |
63.1 |
0.018 |
2026 |
109.1 |
0.020 |
2027 |
150.8 |
0.021 |
2028 |
191.7 |
0.021 |
2029 |
240.6 |
0.016 |
2030 |
351.8 |
0.012 |
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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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