11383-6322 I 422 AB
11h 38m 20.37s -63° 22' 21.9" P.A. 116.00 sep 0.4 mag 7.10,7.42 Sp O7N dist. 2941.18 pc (9594.13 l.y.)
Coord 2000 |
11383-6322 |
|
Discov num |
I 422 |
|
Comp |
AB |
|
Coord arcsec 2000 |
11 38 20.37 -63 22 21.9 |
|
Date first |
1902 |
|
Date last |
2019 |
|
Obs |
24 |
|
Pa first |
94 |
|
Pa last |
116.4 |
|
P.A. Now (θ) |
116.4° |
|
Sep first |
0.5 |
|
Sep last |
0.35 |
|
Sep. Now (ρ) |
0.35" |
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Mag pri |
7.10 |
|
Mag sec |
7.42 |
|
delta mag (ΔM) |
0.32 |
|
Spectral class |
O7N (blue) |
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Pri motion ra |
-006 |
|
Sec motion ra |
|
|
Pri motion dec |
+006 |
|
Sec motion dec |
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Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
11383-6322 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
251511 |
11 38 20 -63 22 22 |
I 422 AB |
2019 |
24 |
116 |
0.4 |
7.10 |
7.42 |
0.32 |
Y |
<=== |
Show |
V871 Cen |
251511 |
11 38 20 -63 22 22 |
I 422 AB,C |
2019 |
10 |
5 |
1.7 |
6.54 |
9.91 |
3.37 |
|
|
Show |
|
251511 |
11 38 20 -63 22 22 |
I 422 AB,D |
2017 |
6 |
324 |
9.4 |
6.54 |
11.60 |
5.06 |
|
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Quadruple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Var name |
V871 Cen |
|
Constellation |
Centaurus |
|
SAO |
251511 |
|
HIP |
56769 |
|
Tycho2 |
8976-05393-1 |
|
Gaia DR2 |
5333579693434155008 |
|
HD |
101205 |
|
GC |
15973 |
|
CP |
CP-62 2168 |
|
Distance |
2941.18 |
|
Distance ly |
9594.13 |
|
ORBITAL ELEMENTS
Period (P) | 1715.8y | ± 285.4 |
Periastron (T) | 909.2y | ± 230.1 |
Semi-major axis (a) | 1.316a | ± 0.445 |
Eccentricity (e) | 0.73 | ± 0.106 |
Inclination (i) | 81.9° | ± 13 |
Longitude of periastron (ω) | 73.8° | ± 14.8 |
Node (Ω) | 234.8° | ± 8.8 |
Notes | n | |
Reference | Zas2009 | |
Equinox | 2000 | |
Last observation | | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
114.9 |
0.350 |
2001 |
115.2 |
0.349 |
2002 |
115.4 |
0.347 |
2003 |
115.7 |
0.346 |
2004 |
116.0 |
0.345 |
2005 |
116.3 |
0.344 |
2006 |
116.6 |
0.343 |
2007 |
116.9 |
0.342 |
2008 |
117.2 |
0.341 |
2009 |
117.5 |
0.340 |
2010 |
117.8 |
0.339 |
2011 |
118.1 |
0.338 |
2012 |
118.4 |
0.337 |
2013 |
118.7 |
0.336 |
2014 |
119.1 |
0.334 |
2015 |
119.4 |
0.333 |
2016 |
119.7 |
0.332 |
2017 |
120.0 |
0.331 |
2018 |
120.3 |
0.330 |
2019 |
120.6 |
0.329 |
2020 |
121.0 |
0.328 |
2021 |
121.3 |
0.328 |
2022 |
121.6 |
0.327 |
2023 |
122.0 |
0.326 |
2024 |
122.3 |
0.325 |
2025 |
122.6 |
0.324 |
2026 |
123.0 |
0.323 |
2027 |
123.3 |
0.322 |
2028 |
123.6 |
0.321 |
2029 |
124.0 |
0.320 |
2030 |
124.3 |
0.319 |
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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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