15246-4835 B 1288 AB
15h 24m 35.95s -48° 34' 55.2" P.A. 133.00 sep 0.1 mag 8.25,8.39 Sp B9.5/A0V dist. 192.68 pc (628.52 l.y.)
| Coord 2000 |
15246-4835 |
|
Discov num |
B 1288 |
|
Comp |
AB |
|
Coord arcsec 2000 |
15 24 35.95 -48 34 55.2 |
|
| Date first |
1930 |
|
Date last |
2021 |
|
Obs |
21 |
|
| Pa first |
303 |
|
Pa last |
133 |
|
P.A. Now (θ) |
133° |
|
| Sep first |
0.3 |
|
Sep last |
0.097 |
|
Sep. Now (ρ) |
0.097" |
|
| Mag pri |
8.25 |
|
Mag sec |
8.39 |
|
delta mag (ΔM) |
0.14 |
|
Spectral class |
B9.5/A0V (blue-white) |
|
| Pri motion ra |
-008 |
|
Sec motion ra |
|
|
| Pri motion dec |
-015 |
|
Sec motion dec |
|
|
| Notes |
O
(Orbital solution) |
|
This double is physical.
15246-4835 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
225744 |
15 24 36 -48 34 55 |
B 1288 AB |
2021 |
21 |
133 |
0.1 |
8.25 |
8.39 |
0.14 |
Y |
<=== |
| Show |
HD 136807 |
225744 |
15 24 36 -48 34 55 |
CPO 428 AB,C |
2016 |
8 |
342 |
8.9 |
7.55 |
12.01 |
4.46 |
|
|
Triple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Lupus |
|
SAO |
225744 |
|
HIP |
75427 |
|
Tycho2 |
8299-02895-1 |
|
| Gaia DR2 |
5890695466384559744 |
|
HD |
136807 |
|
GC |
20694 |
|
CD |
CD-48 9912 |
|
| CP |
CP-48 7440 |
|
Distance |
192.68 |
|
Distance ly |
628.52 |
|
ORBITAL ELEMENTS
| Period (P) | 449.82y | ± 50.91 |
Periastron (T) | 2013.7y | ± 0.6 |
Semi-major axis (a) | 0.326a | ± 0.028 |
| Eccentricity (e) | 0.742 | ± 0.019 |
Inclination (i) | 67.5° | ± 2.3 |
Longitude of periastron (ω) | 284.9° | ± 6.1 |
| Node (Ω) | 143.4° | ± 1.7 |
Notes | | |
Reference | Tok2015c | |
| Equinox | 2000 | |
Last observation | 2014 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
333.4 |
0.120 |
| 2001 |
335.0 |
0.112 |
| 2002 |
336.9 |
0.105 |
| 2003 |
339.0 |
0.097 |
| 2004 |
341.6 |
0.089 |
| 2005 |
344.6 |
0.080 |
| 2006 |
348.5 |
0.071 |
| 2007 |
353.3 |
0.063 |
| 2008 |
359.7 |
0.054 |
| 2009 |
8.5 |
0.046 |
| 2010 |
20.6 |
0.039 |
| 2011 |
37.0 |
0.034 |
| 2012 |
56.8 |
0.033 |
| 2013 |
76.5 |
0.035 |
| 2014 |
92.6 |
0.040 |
| 2015 |
104.4 |
0.047 |
| 2016 |
113.1 |
0.054 |
| 2017 |
119.4 |
0.063 |
| 2018 |
124.3 |
0.071 |
| 2019 |
128.2 |
0.079 |
| 2020 |
131.4 |
0.087 |
| 2021 |
134.1 |
0.094 |
| 2022 |
136.4 |
0.100 |
| 2023 |
138.5 |
0.107 |
| 2024 |
140.3 |
0.113 |
| 2025 |
141.9 |
0.118 |
| 2026 |
143.4 |
0.123 |
| 2027 |
144.8 |
0.128 |
| 2028 |
146.1 |
0.132 |
| 2029 |
147.3 |
0.136 |
| 2030 |
148.5 |
0.140 |
| 2031 |
149.5 |
0.143 |
| 2032 |
150.6 |
0.147 |
| 2033 |
151.6 |
0.150 |
| 2034 |
152.5 |
0.152 |
| 2035 |
153.5 |
0.155 |
| 2036 |
154.4 |
0.157 |
| 2037 |
155.2 |
0.160 |
| 2038 |
156.1 |
0.162 |
| 2039 |
156.9 |
0.164 |
| 2040 |
157.7 |
0.165 |
| 2041 |
158.5 |
0.167 |
| 2042 |
159.3 |
0.169 |
| 2043 |
160.0 |
0.170 |
| 2044 |
160.8 |
0.171 |
| 2045 |
161.5 |
0.173 |
| 2046 |
162.2 |
0.174 |
| 2047 |
163.0 |
0.175 |
| 2048 |
163.7 |
0.176 |
| 2049 |
164.4 |
0.177 |
| 2050 |
165.1 |
0.178 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
Measures: green=micrometric, blue=interferometric, purple=photographic
|
|
