13343-0019 STF 1757 AB (HD 118036)
13h 34m 16.38s -00° 18' 49.8" P.A. 144.00 sep 1.6 mag 7.82,8.75 Sp K4III dist. 26.56 pc (86.64 l.y.)
Coord 2000 |
13343-0019 |
|
Discov num |
STF1757 |
|
Comp |
AB |
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Coord arcsec 2000 |
13 34 16.38 -00 18 49.8 |
|
Date first |
1825 |
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Date last |
2019 |
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Obs |
385 |
|
Pa first |
10 |
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Pa last |
144 |
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P.A. Now (θ) |
148.1° |
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Sep first |
1.6 |
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Sep last |
1.645 |
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Sep. Now (ρ) |
1.568" |
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Mag pri |
7.82 |
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Mag sec |
8.75 |
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delta mag (ΔM) |
0.93 |
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Spectral class |
K4III (yellow-orange) |
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Pri motion ra |
-219 |
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Sec motion ra |
-219 |
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Pri motion dec |
+021 |
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Sec motion dec |
+021 |
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Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
13343-0019 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
HD 118036 |
139416 |
13 34 16 -00 18 50 |
STF 1757 AB |
2019 |
385 |
144 |
1.6 |
7.82 |
8.75 |
0.93 |
Y |
<=== |
Show |
|
139416 |
13 34 16 -00 18 50 |
STF 1757 AC |
2015 |
14 |
135 |
55.8 |
7.82 |
12.51 |
4.69 |
|
|
Show |
|
139416 |
13 34 16 -00 18 50 |
STF 1757 AD |
2015 |
6 |
75 |
146.0 |
7.82 |
11.90 |
4.08 |
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Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 118036 |
|
Constellation |
Virgo |
|
SAO |
139416 |
|
HIP |
66212 |
|
Tycho2 |
4966-00230-1 |
|
HD |
118036 |
|
GC |
18338 |
|
ADS |
8949 |
|
BD |
BD+00 3075 |
|
Distance |
26.56 |
|
Distance ly |
86.64 |
|
ORBITAL ELEMENTS
Period (P) | 344.1128y | ± 108.6492 |
Periastron (T) | 2088.1663y | ± 35.6833 |
Semi-major axis (a) | 2.2042a | ± 0.49731 |
Eccentricity (e) | 0.25953 | ± 0.13979 |
Inclination (i) | 50.025° | ± 8.634 |
Longitude of periastron (ω) | 160.383° | ± 49.297 |
Node (Ω) | 97.408° | ± 2.509 |
Notes | n | |
Reference | Izm2019 | |
Equinox | | |
Last observation | 2015 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
125.7 |
2.060 |
2001 |
126.5 |
2.040 |
2002 |
127.2 |
2.019 |
2003 |
128.0 |
1.999 |
2004 |
128.8 |
1.978 |
2005 |
129.6 |
1.957 |
2006 |
130.5 |
1.936 |
2007 |
131.3 |
1.914 |
2008 |
132.2 |
1.893 |
2009 |
133.1 |
1.871 |
2010 |
134.0 |
1.850 |
2011 |
134.9 |
1.828 |
2012 |
135.9 |
1.806 |
2013 |
136.8 |
1.784 |
2014 |
137.8 |
1.763 |
2015 |
138.9 |
1.741 |
2016 |
139.9 |
1.719 |
2017 |
141.0 |
1.697 |
2018 |
142.1 |
1.675 |
2019 |
143.3 |
1.653 |
2020 |
144.4 |
1.632 |
2021 |
145.6 |
1.610 |
2022 |
146.9 |
1.589 |
2023 |
148.1 |
1.568 |
2024 |
149.4 |
1.547 |
2025 |
150.8 |
1.526 |
2026 |
152.1 |
1.506 |
2027 |
153.5 |
1.485 |
2028 |
155.0 |
1.466 |
2029 |
156.5 |
1.446 |
2030 |
158.0 |
1.427 |
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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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