11471-1149 RST 3756 AB
11h 47m 03.83s -11° 49' 26.5" P.A. 143.00 sep 1.1 mag 9.21,12.71 Sp K2 dist. 25.36 pc (82.72 l.y.)
| Coord 2000 |
11471-1149 |
|
Discov num |
RST3756 |
|
Comp |
AB |
|
Coord arcsec 2000 |
11 47 03.83 -11 49 26.5 |
|
| Date first |
1937 |
|
Date last |
2021 |
|
Obs |
19 |
|
| Pa first |
35 |
|
Pa last |
143.1 |
|
P.A. Now (θ) |
143.1° |
|
| Sep first |
0.7 |
|
Sep last |
1.143 |
|
Sep. Now (ρ) |
1.143" |
|
| Mag pri |
9.21 |
|
Mag sec |
12.71 |
|
delta mag (ΔM) |
3.5 |
|
Spectral class |
K2 (yellow-orange) |
|
| Pri motion ra |
-199 |
|
Sec motion ra |
-206 |
|
| Pri motion dec |
-060 |
|
Sec motion dec |
-061 |
|
| Notes |
O
(Orbital solution) |
|
rPM=0.033 (< 0.3, Physical double)
This double is physical.
11471-1149 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
156885 |
11 47 04 -11 49 26 |
RST 3756 AB |
2021 |
19 |
143 |
1.1 |
9.21 |
12.71 |
3.50 |
Y |
<=== |
| Show |
|
156885 |
11 47 04 -11 49 26 |
LAF 45 AC |
2005 |
1 |
42 |
5.7 |
6.40 |
21.40 |
15.00 |
|
|
| Show |
|
156885 |
11 47 04 -11 49 26 |
LAF 45 AD |
2005 |
1 |
309 |
10.6 |
6.40 |
21.40 |
15.00 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Crater |
|
SAO |
156885 |
|
HIP |
57494 |
|
Tycho2 |
5520-01237-1 |
|
| Gaia DR2 |
3585636855608873984 |
|
HD |
102392 |
|
BD |
BD-11 3178 |
|
Distance |
25.36 |
|
| Distance ly |
82.72 |
|
ORBITAL ELEMENTS
| Period (P) | 121.3y | ± 2.8 |
Periastron (T) | 1955.7y | ± 2.8 |
Semi-major axis (a) | 0.982a | ± 0.013 |
| Eccentricity (e) | 0.176 | ± 0.011 |
Inclination (i) | 152.3° | ± 2.2 |
Longitude of periastron (ω) | 178.7° | ± 16.6 |
| Node (Ω) | 151.4° | ± 7.4 |
Notes | | |
Reference | Tok2021f | |
| Equinox | | |
Last observation | 2021 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
184.9 |
1.067 |
| 2001 |
182.7 |
1.077 |
| 2002 |
180.6 |
1.086 |
| 2003 |
178.5 |
1.095 |
| 2004 |
176.4 |
1.103 |
| 2005 |
174.4 |
1.110 |
| 2006 |
172.4 |
1.117 |
| 2007 |
170.4 |
1.124 |
| 2008 |
168.4 |
1.130 |
| 2009 |
166.5 |
1.135 |
| 2010 |
164.5 |
1.140 |
| 2011 |
162.6 |
1.144 |
| 2012 |
160.7 |
1.148 |
| 2013 |
158.8 |
1.150 |
| 2014 |
157.0 |
1.152 |
| 2015 |
155.1 |
1.154 |
| 2016 |
153.2 |
1.155 |
| 2017 |
151.3 |
1.155 |
| 2018 |
149.5 |
1.154 |
| 2019 |
147.6 |
1.153 |
| 2020 |
145.7 |
1.151 |
| 2021 |
143.8 |
1.148 |
| 2022 |
141.9 |
1.145 |
| 2023 |
140.0 |
1.141 |
| 2024 |
138.1 |
1.137 |
| 2025 |
136.2 |
1.132 |
| 2026 |
134.2 |
1.126 |
| 2027 |
132.2 |
1.119 |
| 2028 |
130.2 |
1.112 |
| 2029 |
128.2 |
1.105 |
| 2030 |
126.1 |
1.097 |
| 2031 |
124.0 |
1.088 |
| 2032 |
121.9 |
1.079 |
| 2033 |
119.8 |
1.069 |
| 2034 |
117.6 |
1.059 |
| 2035 |
115.3 |
1.049 |
| 2036 |
113.0 |
1.038 |
| 2037 |
110.7 |
1.027 |
| 2038 |
108.3 |
1.015 |
| 2039 |
105.8 |
1.004 |
| 2040 |
103.3 |
0.992 |
| 2041 |
100.8 |
0.980 |
| 2042 |
98.1 |
0.968 |
| 2043 |
95.4 |
0.956 |
| 2044 |
92.7 |
0.943 |
| 2045 |
89.8 |
0.931 |
| 2046 |
86.9 |
0.920 |
| 2047 |
83.9 |
0.908 |
| 2048 |
80.9 |
0.897 |
| 2049 |
77.7 |
0.886 |
| 2050 |
74.5 |
0.875 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
Measures: green=micrometric, blue=interferometric, purple=photographic
|
|
