15251-3810 RST 2955 AB
15h 25m 06.45s -38° 10' 09.0" P.A. 221.00 sep 0.2 mag 8.10,7.63 Sp A2V dist. 152.67 pc (498.01 l.y.)
| Coord 2000 |
15251-3810 |
|
Discov num |
RST2955 |
|
Comp |
AB |
|
Coord arcsec 2000 |
15 25 06.45 -38 10 09.0 |
|
| Date first |
1934 |
|
Date last |
2022 |
|
Obs |
22 |
|
| Pa first |
230 |
|
Pa last |
221.3 |
|
P.A. Now (θ) |
219.4° |
|
| Sep first |
0.2 |
|
Sep last |
0.165 |
|
Sep. Now (ρ) |
0.132" |
|
| Mag pri |
8.10 |
|
Mag sec |
7.63 |
|
delta mag (ΔM) |
0.47 |
|
Spectral class |
A2V (white) |
|
| Pri motion ra |
-033 |
|
Sec motion ra |
|
|
| Pri motion dec |
-013 |
|
Sec motion dec |
|
|
| Notes |
O
(Orbital solution) |
|
This double is physical.
15251-3810 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
206607 |
15 25 06 -38 10 09 |
RST 2955 AB |
2022 |
22 |
221 |
0.2 |
8.10 |
7.63 |
0.47 |
Y |
<=== |
| Show |
HD 137015 |
206607 |
15 25 06 -38 10 09 |
SKF 2021 AB,C |
2015 |
13 |
70 |
120.5 |
7.06 |
8.45 |
1.39 |
|
|
Triple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Lupus |
|
SAO |
206607 |
|
HIP |
75476 |
|
Tycho2 |
7835-00361-1 |
|
| Gaia DR2 |
6006528088637041792 |
|
HD |
137015 |
|
HR |
5722 |
|
GC |
20708 |
|
| CD |
CD-3710225 |
|
CP |
CP-37 6486 |
|
Distance |
152.67 |
|
Distance ly |
498.01 |
|
ORBITAL ELEMENTS
| Period (P) | 510y | |
Periastron (T) | 1998.1y | |
Semi-major axis (a) | 0.427a | |
| Eccentricity (e) | 0.645 | |
Inclination (i) | 84.7° | |
Longitude of periastron (ω) | 60.2° | |
| Node (Ω) | 226° | |
Notes | | |
Reference | Tok2019d | |
| Equinox | 2000 | |
Last observation | 2018 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
239.1 |
0.058 |
| 2001 |
242.4 |
0.048 |
| 2002 |
247.4 |
0.038 |
| 2003 |
255.7 |
0.029 |
| 2004 |
271.7 |
0.020 |
| 2005 |
303.0 |
0.015 |
| 2006 |
342.2 |
0.017 |
| 2007 |
6.2 |
0.023 |
| 2008 |
18.2 |
0.032 |
| 2009 |
24.8 |
0.042 |
| 2010 |
28.9 |
0.052 |
| 2011 |
31.8 |
0.062 |
| 2012 |
33.8 |
0.072 |
| 2013 |
35.3 |
0.082 |
| 2014 |
36.5 |
0.092 |
| 2015 |
37.5 |
0.101 |
| 2016 |
38.3 |
0.111 |
| 2017 |
39.0 |
0.120 |
| 2018 |
39.6 |
0.129 |
| 2019 |
40.1 |
0.138 |
| 2020 |
40.5 |
0.147 |
| 2021 |
40.9 |
0.156 |
| 2022 |
41.3 |
0.164 |
| 2023 |
41.6 |
0.173 |
| 2024 |
41.9 |
0.181 |
| 2025 |
42.2 |
0.189 |
| 2026 |
42.4 |
0.197 |
| 2027 |
42.6 |
0.204 |
| 2028 |
42.8 |
0.212 |
| 2029 |
43.0 |
0.219 |
| 2030 |
43.2 |
0.226 |
| 2031 |
43.4 |
0.233 |
| 2032 |
43.5 |
0.240 |
| 2033 |
43.7 |
0.246 |
| 2034 |
43.8 |
0.253 |
| 2035 |
44.0 |
0.259 |
| 2036 |
44.1 |
0.266 |
| 2037 |
44.2 |
0.272 |
| 2038 |
44.4 |
0.278 |
| 2039 |
44.5 |
0.283 |
| 2040 |
44.6 |
0.289 |
| 2041 |
44.7 |
0.295 |
| 2042 |
44.8 |
0.300 |
| 2043 |
44.9 |
0.305 |
| 2044 |
45.0 |
0.310 |
| 2045 |
45.1 |
0.316 |
| 2046 |
45.2 |
0.320 |
| 2047 |
45.3 |
0.325 |
| 2048 |
45.4 |
0.330 |
| 2049 |
45.4 |
0.335 |
| 2050 |
45.5 |
0.339 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
Measures: green=micrometric, blue=interferometric, purple=photographic
|
|
