11247-6139 BSO 5 Aa,Ab
11h 24m 40.34s -61° 38' 51.1" P.A. 248.00 sep 0.2 mag 7.80,10.60 Sp K5/M0V dist. 13.71 pc (44.72 l.y.)
| Coord 2000 |
11247-6139 |
|
Discov num |
BSO 5 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
11 24 40.34 -61 38 51.1 |
|
| Date first |
2021 |
|
Date last |
2021 |
|
Obs |
1 |
|
| Pa first |
248 |
|
Pa last |
247.8 |
|
P.A. Now (θ) |
247.8° |
|
| Sep first |
0.2 |
|
Sep last |
0.246 |
|
Sep. Now (ρ) |
0.246" |
|
| Mag pri |
7.80 |
|
Mag sec |
10.60 |
|
delta mag (ΔM) |
2.8 |
|
Spectral class |
K5/M0V (yellow-orange) |
|
| Pri motion ra |
-491 |
|
Sec motion ra |
|
|
| Pri motion dec |
+099 |
|
Sec motion dec |
|
|
| Notes |
|
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Nature of this double is uncertain.
11247-6139 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
251393 |
11 24 40 -61 38 51 |
BSO 5 Aa,Ab |
2021 |
1 |
248 |
0.2 |
7.80 |
10.60 |
2.80 |
Y |
<=== |
| Show |
HD 99279 |
251393 |
11 24 40 -61 38 51 |
BSO 5 AB |
2019 |
132 |
249 |
7.7 |
7.68 |
8.76 |
1.08 |
|
|
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Centaurus |
|
SAO |
251393 |
|
HIP |
55691 |
|
Tycho2 |
8959-01969-2 |
|
| HD |
99279 |
|
GL |
Gl 428A |
|
CD |
CD-60 3532 |
|
CP |
CP-60 2911 |
|
| Distance |
13.71 |
|
Distance ly |
44.72 |
|
SUSPECTED ORBITAL ELEMENTS
| Identifier | 11247-6139 BSO 5 |
| coord_arcsec_2000 | 112440.34-613851.1 |
| Period (P) | 416.75y | ± 27.267 |
Periastron (T) | 1918.1165y | ± 0.689 |
Semi-major axis (a) | 5.81827a | ± 0.15804 |
| Eccentricity (e) | 0.67575 | ± 0.01753 |
Inclination (i) | 49.649° | ± 1.625 |
Longitude of periastron (ω) | 16.6° | ± 1.366 |
| Node (Ω) | 76.448° | ± 0.867 |
Notes | | |
Reference | Izm2019 | |
| Equinox | | |
Last observation | 2015 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
243.8 |
6.788 |
| 2001 |
244.1 |
6.843 |
| 2002 |
244.4 |
6.898 |
| 2003 |
244.7 |
6.951 |
| 2004 |
245.0 |
7.004 |
| 2005 |
245.3 |
7.057 |
| 2006 |
245.6 |
7.108 |
| 2007 |
245.8 |
7.159 |
| 2008 |
246.1 |
7.210 |
| 2009 |
246.4 |
7.259 |
| 2010 |
246.6 |
7.308 |
| 2011 |
246.9 |
7.357 |
| 2012 |
247.2 |
7.404 |
| 2013 |
247.4 |
7.452 |
| 2014 |
247.7 |
7.498 |
| 2015 |
247.9 |
7.544 |
| 2016 |
248.1 |
7.589 |
| 2017 |
248.4 |
7.634 |
| 2018 |
248.6 |
7.678 |
| 2019 |
248.9 |
7.721 |
| 2020 |
249.1 |
7.764 |
| 2021 |
249.3 |
7.807 |
| 2022 |
249.6 |
7.848 |
| 2023 |
249.8 |
7.889 |
| 2024 |
250.0 |
7.930 |
| 2025 |
250.2 |
7.970 |
| 2026 |
250.4 |
8.009 |
| 2027 |
250.7 |
8.048 |
| 2028 |
250.9 |
8.086 |
| 2029 |
251.1 |
8.124 |
| 2030 |
251.3 |
8.161 |
|
|
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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