16253-4909 CVN 27 Ba,Bb
16h 25m 17.79s -49° 08' 52.8" P.A. 115.00 sep 0.1 mag 8.23, Sp K1V dist. 46.99 pc (153.28 l.y.)
| Coord 2000 |
16253-4909 |
|
Discov num |
CVN 27 |
|
Comp |
Ba,Bb |
|
Coord arcsec 2000 |
16 25 17.79 -49 08 52.8 |
|
| Date first |
2004 |
|
Date last |
2021 |
|
Obs |
21 |
|
| Pa first |
38 |
|
Pa last |
115.1 |
|
P.A. Now (θ) |
53.8° |
|
| Sep first |
0.1 |
|
Sep last |
0.063 |
|
Sep. Now (ρ) |
0.09" |
|
| Mag pri |
8.23 |
|
Mag sec |
|
|
delta mag (ΔM) |
|
|
Spectral class |
K1V (yellow-orange) |
|
| Pri motion ra |
-092 |
|
Sec motion ra |
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|
| Pri motion dec |
-084 |
|
Sec motion dec |
|
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
16253-4909 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 147633 |
|
16 25 18 -49 08 52 |
COO 197 AB |
2021 |
65 |
89 |
2.4 |
8.11 |
8.23 |
0.12 |
Y |
|
| Show |
|
|
16 25 18 -49 08 52 |
COO 197 AC |
2010 |
16 |
77 |
20.7 |
8.11 |
12.00 |
3.89 |
|
|
| Show |
|
226738 |
16 25 18 -49 08 53 |
CVN 27 Ba,Bb |
2021 |
21 |
115 |
0.1 |
8.23 |
|
|
Y |
<=== |
Quadruple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Norma |
|
SAO |
226738 |
|
HIP |
80448 |
|
Tycho2 |
8320-02096-2 |
|
| Gaia DR2 |
5941405217505610624 |
|
HD |
147633 |
|
CD |
CD-4810809 |
|
CP |
CP-48 8449 |
|
| Distance |
46.99 |
|
Distance ly |
153.28 |
|
ORBITAL ELEMENTS
| Period (P) | 19.77y | ± 0.23 |
Periastron (T) | 2017.26y | ± 0.22 |
Semi-major axis (a) | 0.182a | ± 0.003 |
| Eccentricity (e) | 0.47 | ± 0.018 |
Inclination (i) | 107.9° | ± 0.9 |
Longitude of periastron (ω) | 138.3° | ± 4.9 |
| Node (Ω) | 3.8° | ± 1.1 |
Notes | n | |
Reference | Tok2021f | |
| Equinox | | |
Last observation | 2021 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
157.3 |
0.091 |
| 2001 |
130.5 |
0.069 |
| 2002 |
90.6 |
0.064 |
| 2003 |
58.8 |
0.084 |
| 2004 |
41.6 |
0.114 |
| 2005 |
31.7 |
0.145 |
| 2006 |
25.3 |
0.174 |
| 2007 |
20.6 |
0.199 |
| 2008 |
16.9 |
0.219 |
| 2009 |
13.6 |
0.232 |
| 2010 |
10.7 |
0.238 |
| 2011 |
7.8 |
0.236 |
| 2012 |
4.7 |
0.224 |
| 2013 |
1.1 |
0.200 |
| 2014 |
356.1 |
0.163 |
| 2015 |
347.2 |
0.110 |
| 2016 |
314.3 |
0.046 |
| 2017 |
208.7 |
0.059 |
| 2018 |
184.3 |
0.104 |
| 2019 |
170.3 |
0.106 |
| 2020 |
152.4 |
0.085 |
| 2021 |
122.1 |
0.065 |
| 2022 |
81.8 |
0.067 |
| 2023 |
53.8 |
0.090 |
| 2024 |
38.8 |
0.121 |
| 2025 |
30.0 |
0.152 |
| 2026 |
24.1 |
0.181 |
| 2027 |
19.7 |
0.204 |
| 2028 |
16.1 |
0.222 |
| 2029 |
13.0 |
0.234 |
| 2030 |
10.0 |
0.238 |
|
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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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