12059-4951 RST 4958 Aa,Ab
12h 05m 55.32s -49° 51' 13.7" P.A. 359.00 sep 0.2 mag 10.00,10.00 Sp G0/2V
| Coord 2000 |
12059-4951 |
|
Discov num |
RST4958 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
12 05 55.32 -49 51 13.7 |
|
| Date first |
1942 |
|
Date last |
2020 |
|
Obs |
11 |
|
| Pa first |
34 |
|
Pa last |
358.9 |
|
P.A. Now (θ) |
358.9° |
|
| Sep first |
0.2 |
|
Sep last |
0.196 |
|
Sep. Now (ρ) |
0.196" |
|
| Mag pri |
10.00 |
|
Mag sec |
10.00 |
|
delta mag (ΔM) |
0 |
|
Spectral class |
G0/2V (yellow) |
|
| Pri motion ra |
+032 |
|
Sec motion ra |
|
|
| Pri motion dec |
-023 |
|
Sec motion dec |
|
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
12059-4951 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
12 05 55 -49 51 14 |
RST 4958 Aa,Ab |
2020 |
11 |
359 |
0.2 |
10.00 |
10.00 |
0.00 |
Y |
<=== |
| Show |
HD 105080 |
223213 |
12 05 55 -49 51 14 |
HJ 4494 AB |
2015 |
14 |
70 |
12.9 |
9.21 |
9.21 |
0.00 |
|
|
| Show |
|
223213 |
12 05 55 -49 51 14 |
HJ 4494 AC |
2015 |
11 |
349 |
24.7 |
9.21 |
10.69 |
1.48 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Centaurus |
|
Tycho2 |
8237-02652-1 |
|
Gaia DR2 |
6129537910506753536 |
|
HD |
105080 |
|
ORBITAL ELEMENTS
| Period (P) | 91.6y | |
Periastron (T) | 1999.15y | |
Semi-major axis (a) | 0.176a | |
| Eccentricity (e) | 0.4 | |
Inclination (i) | 40.4° | |
Longitude of periastron (ω) | 224.1° | |
| Node (Ω) | 5.4° | |
Notes | | |
Reference | Tok2018h | |
| Equinox | 2000 | |
Last observation | 2018 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
230.3 |
0.091 |
| 2001 |
241.0 |
0.088 |
| 2002 |
252.3 |
0.086 |
| 2003 |
263.8 |
0.086 |
| 2004 |
275.0 |
0.088 |
| 2005 |
285.6 |
0.092 |
| 2006 |
295.2 |
0.097 |
| 2007 |
303.8 |
0.103 |
| 2008 |
311.2 |
0.110 |
| 2009 |
317.8 |
0.118 |
| 2010 |
323.6 |
0.125 |
| 2011 |
328.7 |
0.133 |
| 2012 |
333.2 |
0.141 |
| 2013 |
337.3 |
0.148 |
| 2014 |
340.9 |
0.156 |
| 2015 |
344.3 |
0.163 |
| 2016 |
347.4 |
0.169 |
| 2017 |
350.3 |
0.175 |
| 2018 |
352.9 |
0.181 |
| 2019 |
355.4 |
0.187 |
| 2020 |
357.8 |
0.192 |
| 2021 |
0.0 |
0.197 |
| 2022 |
2.2 |
0.201 |
| 2023 |
4.2 |
0.205 |
| 2024 |
6.2 |
0.209 |
| 2025 |
8.1 |
0.212 |
| 2026 |
10.0 |
0.215 |
| 2027 |
11.8 |
0.218 |
| 2028 |
13.6 |
0.220 |
| 2029 |
15.3 |
0.222 |
| 2030 |
17.0 |
0.224 |
| 2031 |
18.7 |
0.226 |
| 2032 |
20.4 |
0.227 |
| 2033 |
22.0 |
0.228 |
| 2034 |
23.6 |
0.228 |
| 2035 |
25.3 |
0.229 |
| 2036 |
26.9 |
0.229 |
| 2037 |
28.5 |
0.229 |
| 2038 |
30.1 |
0.228 |
| 2039 |
31.8 |
0.228 |
| 2040 |
33.4 |
0.227 |
| 2041 |
35.1 |
0.226 |
| 2042 |
36.8 |
0.225 |
| 2043 |
38.5 |
0.223 |
| 2044 |
40.2 |
0.222 |
| 2045 |
41.9 |
0.220 |
| 2046 |
43.7 |
0.218 |
| 2047 |
45.5 |
0.216 |
| 2048 |
47.3 |
0.213 |
| 2049 |
49.2 |
0.211 |
| 2050 |
51.2 |
0.209 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
Measures: green=micrometric, blue=interferometric, purple=photographic
|
|
