13237-0043 A 2489 (HD 116444)
13h 23m 43.16s -00° 43' 09.1" P.A. 190.00 sep 1.0 mag 9.49,9.81 Sp G5 dist. 123.15 pc (401.72 l.y.)
Coord 2000 |
13237-0043 |
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Discov num |
A 2489 |
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Comp |
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Coord arcsec 2000 |
13 23 43.16 -00 43 09.1 |
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Date first |
1912 |
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Date last |
2018 |
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Obs |
57 |
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Pa first |
191 |
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Pa last |
189.9 |
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P.A. Now (θ) |
189.9° |
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Sep first |
0.3 |
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Sep last |
0.99 |
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Sep. Now (ρ) |
0.99" |
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Mag pri |
9.49 |
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Mag sec |
9.81 |
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delta mag (ΔM) |
0.32 |
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Spectral class |
G5 (yellow) |
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Pri motion ra |
-053 |
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Sec motion ra |
-053 |
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Pri motion dec |
-023 |
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Sec motion dec |
-023 |
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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 116444 |
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Constellation |
Virgo |
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HIP |
65360 |
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Tycho2 |
4959-00452-1 |
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HD |
116444 |
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ADS |
8884 |
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BD |
BD+00 3050 |
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Distance |
123.15 |
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Distance ly |
401.72 |
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ORBITAL ELEMENTS
Period (P) | 499y | |
Periastron (T) | 1905y | |
Semi-major axis (a) | 1.35a | |
Eccentricity (e) | 0.8 | |
Inclination (i) | 95° | |
Longitude of periastron (ω) | 142° | |
Node (Ω) | 183° | |
Notes | n | |
Reference | WSI2004a | |
Equinox | 2000 | |
Last observation | 2002 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
193.0 |
0.784 |
2001 |
192.9 |
0.795 |
2002 |
192.8 |
0.806 |
2003 |
192.7 |
0.818 |
2004 |
192.6 |
0.829 |
2005 |
192.5 |
0.840 |
2006 |
192.4 |
0.851 |
2007 |
192.3 |
0.862 |
2008 |
192.2 |
0.873 |
2009 |
192.1 |
0.884 |
2010 |
192.0 |
0.895 |
2011 |
191.9 |
0.905 |
2012 |
191.8 |
0.916 |
2013 |
191.8 |
0.927 |
2014 |
191.7 |
0.937 |
2015 |
191.6 |
0.948 |
2016 |
191.5 |
0.958 |
2017 |
191.5 |
0.969 |
2018 |
191.4 |
0.979 |
2019 |
191.3 |
0.990 |
2020 |
191.2 |
1.000 |
2021 |
191.2 |
1.010 |
2022 |
191.1 |
1.020 |
2023 |
191.0 |
1.030 |
2024 |
191.0 |
1.041 |
2025 |
190.9 |
1.051 |
2026 |
190.9 |
1.061 |
2027 |
190.8 |
1.070 |
2028 |
190.7 |
1.080 |
2029 |
190.7 |
1.090 |
2030 |
190.6 |
1.100 |
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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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