13134-5042 I 1227 (HD 114772)
13h 13m 23.38s -50° 41' 59.2" P.A. 133.00 sep 0.4 mag 6.56,6.78 Sp B9.5V dist. 112.23 pc (366.09 l.y.)
| Coord 2000 |
13134-5042 |
|
Discov num |
I 1227 |
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Comp |
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Coord arcsec 2000 |
13 13 23.38 -50 41 59.2 |
|
| Date first |
1926 |
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Date last |
2021 |
|
Obs |
29 |
|
| Pa first |
122 |
|
Pa last |
133.3 |
|
P.A. Now (θ) |
129.5° |
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| Sep first |
0.4 |
|
Sep last |
0.351 |
|
Sep. Now (ρ) |
0.354" |
|
| Mag pri |
6.56 |
|
Mag sec |
6.78 |
|
delta mag (ΔM) |
0.22 |
|
Spectral class |
B9.5V (blue-white) |
|
| Pri motion ra |
-028 |
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Sec motion ra |
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| Pri motion dec |
-014 |
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Sec motion dec |
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| Notes |
N
O
V
(See Notes, Orbital solution, Proper motion indicates physical) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 114772 |
|
Constellation |
Centaurus |
|
SAO |
240655 |
|
HIP |
64515 |
|
| Tycho2 |
8259-01490-1 |
|
HD |
114772 |
|
HR |
4985 |
|
GC |
17890 |
|
| CD |
CD-50 7589 |
|
CP |
CP-50 5814 |
|
Distance |
112.23 |
|
Distance ly |
366.09 |
|
ORBITAL ELEMENTS
| Period (P) | 100.88y | |
Periastron (T) | 1981.74y | |
Semi-major axis (a) | 0.317a | |
| Eccentricity (e) | 0.647 | |
Inclination (i) | 133.2° | |
Longitude of periastron (ω) | 90.2° | |
| Node (Ω) | 26.2° | |
Notes | n | |
Reference | Zir2013d | |
| Equinox | 2000 | |
Last observation | 2006 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
168.2 |
0.299 |
| 2001 |
166.2 |
0.304 |
| 2002 |
164.2 |
0.309 |
| 2003 |
162.2 |
0.313 |
| 2004 |
160.3 |
0.317 |
| 2005 |
158.5 |
0.320 |
| 2006 |
156.7 |
0.324 |
| 2007 |
154.9 |
0.327 |
| 2008 |
153.2 |
0.330 |
| 2009 |
151.5 |
0.332 |
| 2010 |
149.8 |
0.335 |
| 2011 |
148.1 |
0.337 |
| 2012 |
146.5 |
0.339 |
| 2013 |
144.9 |
0.341 |
| 2014 |
143.3 |
0.343 |
| 2015 |
141.7 |
0.345 |
| 2016 |
140.1 |
0.346 |
| 2017 |
138.6 |
0.348 |
| 2018 |
137.0 |
0.349 |
| 2019 |
135.5 |
0.350 |
| 2020 |
134.0 |
0.351 |
| 2021 |
132.5 |
0.352 |
| 2022 |
130.9 |
0.353 |
| 2023 |
129.5 |
0.354 |
| 2024 |
128.0 |
0.355 |
| 2025 |
126.5 |
0.355 |
| 2026 |
125.0 |
0.356 |
| 2027 |
123.5 |
0.356 |
| 2028 |
122.0 |
0.357 |
| 2029 |
120.6 |
0.357 |
| 2030 |
119.1 |
0.357 |
|
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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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