15313-3349 B 2036 AB
15h 31m 17.22s -33° 49' 11.2" P.A. 1.00 sep 0.4 mag 7.70,7.90 Sp A2/3V dist. 102.77 pc (335.24 l.y.)
| Coord 2000 |
15313-3349 |
|
Discov num |
B 2036 |
|
Comp |
AB |
|
Coord arcsec 2000 |
15 31 17.22 -33 49 11.2 |
|
| Date first |
1931 |
|
Date last |
2018 |
|
Obs |
19 |
|
| Pa first |
167 |
|
Pa last |
1 |
|
P.A. Now (θ) |
1° |
|
| Sep first |
0.1 |
|
Sep last |
0.408 |
|
Sep. Now (ρ) |
0.408" |
|
| Mag pri |
7.70 |
|
Mag sec |
7.90 |
|
delta mag (ΔM) |
0.2 |
|
Spectral class |
A2/3V (white) |
|
| Pri motion ra |
-021 |
|
Sec motion ra |
|
|
| Pri motion dec |
-028 |
|
Sec motion dec |
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|
| Notes |
O
(Orbital solution) |
|
This double is physical.
15313-3349 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
206720 |
15 31 17 -33 49 11 |
B 2036 AB |
2018 |
19 |
1 |
0.4 |
7.70 |
7.90 |
0.20 |
Y |
<=== |
| Show |
HD 138138 |
206720 |
15 31 17 -33 49 11 |
HWE 78 AB,C |
2018 |
26 |
118 |
1.4 |
7.03 |
9.11 |
2.08 |
Y |
|
| Show |
|
206720 |
15 31 17 -33 49 11 |
KOU 38 AD |
2000 |
1 |
128 |
6.6 |
7.60 |
12.85 |
5.25 |
|
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Quadruple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Lupus |
|
SAO |
206720 |
|
HIP |
76001 |
|
Tycho2 |
7322-00836-1 |
|
| Gaia DR2 |
6014396640513030144 |
|
HD |
138138 |
|
GC |
20844 |
|
CD |
CD-3310564 |
|
| CP |
CP-33 3881 |
|
Distance |
102.77 |
|
Distance ly |
335.24 |
|
ORBITAL ELEMENTS
| Period (P) | 280.6853y | ± 75.3426 |
Periastron (T) | 1987.357y | ± 1.264 |
Semi-major axis (a) | 0.48855a | ± 0.06779 |
| Eccentricity (e) | 0.70147 | ± 0.10156 |
Inclination (i) | 89.338° | ± 0.51 |
Longitude of periastron (ω) | 249.77° | ± 4.812 |
| Node (Ω) | 1.486° | ± 0.63 |
Notes | | |
Reference | Izm2019 | |
| Equinox | | |
Last observation | 2014 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
1.2 |
0.226 |
| 2001 |
1.3 |
0.241 |
| 2002 |
1.3 |
0.255 |
| 2003 |
1.3 |
0.269 |
| 2004 |
1.4 |
0.282 |
| 2005 |
1.4 |
0.294 |
| 2006 |
1.4 |
0.306 |
| 2007 |
1.5 |
0.317 |
| 2008 |
1.5 |
0.327 |
| 2009 |
1.5 |
0.337 |
| 2010 |
1.5 |
0.347 |
| 2011 |
1.6 |
0.355 |
| 2012 |
1.6 |
0.364 |
| 2013 |
1.6 |
0.372 |
| 2014 |
1.6 |
0.379 |
| 2015 |
1.6 |
0.386 |
| 2016 |
1.6 |
0.393 |
| 2017 |
1.7 |
0.400 |
| 2018 |
1.7 |
0.406 |
| 2019 |
1.7 |
0.412 |
| 2020 |
1.7 |
0.417 |
| 2021 |
1.7 |
0.422 |
| 2022 |
1.7 |
0.427 |
| 2023 |
1.7 |
0.432 |
| 2024 |
1.8 |
0.436 |
| 2025 |
1.8 |
0.441 |
| 2026 |
1.8 |
0.444 |
| 2027 |
1.8 |
0.448 |
| 2028 |
1.8 |
0.452 |
| 2029 |
1.8 |
0.455 |
| 2030 |
1.8 |
0.458 |
|
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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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