12096-6727 HDS 1716 (HD 105615)
12h 09m 38.20s -67° 27' 14.9" P.A. 77.00 sep 0.1 mag 7.59,10.16 Sp A0/A1V dist. 136.43 pc (445.03 l.y.)
Coord 2000 |
12096-6727 |
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Discov num |
HDS1716 |
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Comp |
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Coord arcsec 2000 |
12 09 38.20 -67 27 14.9 |
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Date first |
1991 |
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Date last |
2021 |
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Obs |
12 |
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Pa first |
232 |
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Pa last |
77.4 |
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P.A. Now (θ) |
77.4° |
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Sep first |
0.2 |
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Sep last |
0.075 |
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Sep. Now (ρ) |
0.075" |
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Mag pri |
7.59 |
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Mag sec |
10.16 |
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delta mag (ΔM) |
2.57 |
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Spectral class |
A0/A1V (white) |
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Pri motion ra |
-037 |
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Sec motion ra |
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Pri motion dec |
-006 |
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Sec motion dec |
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Notes |
O
(Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 105615 |
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Constellation |
Musca |
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SAO |
251768 |
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HIP |
59281 |
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Tycho2 |
8986-00147-1 |
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Gaia DR2 |
5859598185184435328 |
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HD |
105615 |
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GC |
16605 |
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CP |
CP-66 1707 |
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Distance |
136.43 |
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Distance ly |
445.03 |
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ORBITAL ELEMENTS
Period (P) | 72y | |
Periastron (T) | 2018.17y | |
Semi-major axis (a) | 0.157a | |
Eccentricity (e) | 0.525 | |
Inclination (i) | 40.4° | |
Longitude of periastron (ω) | 333.9° | |
Node (Ω) | 58.8° | |
Notes | | |
Reference | Tok2019c | |
Equinox | | |
Last observation | 2018 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
247.5 |
0.194 |
2001 |
249.7 |
0.187 |
2002 |
252.0 |
0.181 |
2003 |
254.6 |
0.174 |
2004 |
257.3 |
0.166 |
2005 |
260.4 |
0.158 |
2006 |
263.8 |
0.149 |
2007 |
267.6 |
0.140 |
2008 |
272.0 |
0.130 |
2009 |
277.1 |
0.120 |
2010 |
283.2 |
0.109 |
2011 |
290.6 |
0.099 |
2012 |
299.7 |
0.089 |
2013 |
311.1 |
0.079 |
2014 |
325.2 |
0.072 |
2015 |
342.0 |
0.067 |
2016 |
0.4 |
0.065 |
2017 |
18.8 |
0.067 |
2018 |
35.7 |
0.071 |
2019 |
50.7 |
0.075 |
2020 |
64.2 |
0.079 |
2021 |
76.6 |
0.082 |
2022 |
88.1 |
0.085 |
2023 |
99.0 |
0.087 |
2024 |
109.2 |
0.090 |
2025 |
118.7 |
0.094 |
2026 |
127.4 |
0.098 |
2027 |
135.4 |
0.102 |
2028 |
142.7 |
0.107 |
2029 |
149.3 |
0.113 |
2030 |
155.2 |
0.119 |
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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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