16057-0617 BU 948 AB (HD 144362)
16h 05m 44.53s -06° 17' 28.1" P.A. 72.00 sep 0.6 mag 6.46,9.01 Sp F3V dist. 87.34 pc (284.9 l.y.)
Coord 2000 |
16057-0617 |
|
Discov num |
BU 948 |
|
Comp |
AB |
|
Coord arcsec 2000 |
16 05 44.53 -06 17 28.1 |
|
Date first |
1879 |
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Date last |
2021 |
|
Obs |
71 |
|
Pa first |
151 |
|
Pa last |
71.8 |
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P.A. Now (θ) |
71.8° |
|
Sep first |
1.5 |
|
Sep last |
0.59 |
|
Sep. Now (ρ) |
0.59" |
|
Mag pri |
6.46 |
|
Mag sec |
9.01 |
|
delta mag (ΔM) |
2.55 |
|
Spectral class |
F3V (yellow-white) |
|
Pri motion ra |
+050 |
|
Sec motion ra |
+050 |
|
Pri motion dec |
+007 |
|
Sec motion dec |
+007 |
|
Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
16057-0617 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
140945 |
16 05 45 -06 17 28 |
FIN 384 Aa,Ab |
2021 |
31 |
275 |
0.1 |
7.10 |
7.10 |
0.00 |
Y |
|
Show |
HD 144362 |
140945 |
16 05 45 -06 17 28 |
BU 948 AB |
2021 |
71 |
72 |
0.6 |
6.46 |
9.01 |
2.55 |
Y |
<=== |
Show |
|
140945 |
16 05 45 -06 17 28 |
STF 2005 AC |
2019 |
18 |
233 |
28.6 |
6.46 |
11.31 |
4.85 |
|
|
Show |
|
140945 |
16 05 45 -06 17 28 |
STF 2005 AD |
2015 |
12 |
202 |
55.3 |
6.46 |
11.87 |
5.41 |
|
|
Show |
|
140945 |
16 05 45 -06 17 28 |
SHY 696 AE |
2014 |
5 |
271 |
260.0 |
6.46 |
7.90 |
1.44 |
|
|
Show |
|
|
16 05 43 -06 17 46 |
STF 2005 CD |
2015 |
18 |
176 |
34.2 |
11.31 |
11.87 |
0.56 |
|
|
Sextuple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 144362 |
|
Constellation |
Ophiuchus |
|
SAO |
140945 |
|
HIP |
78849 |
|
Tycho2 |
5044-00998-1 |
|
Gaia DR2 |
4350207275578961152 |
|
HD |
144362 |
|
HR |
5989 |
|
GC |
21616 |
|
ADS |
9918 |
|
BD |
BD-05 4234 |
|
Distance |
87.34 |
|
Distance ly |
284.9 |
|
ORBITAL ELEMENTS
Period (P) | 300y | |
Periastron (T) | 2048.5y | ± 4.1 |
Semi-major axis (a) | 0.877a | ± 0.009 |
Eccentricity (e) | 0.611 | ± 0.033 |
Inclination (i) | 155° | |
Longitude of periastron (ω) | 141.1° | ± 26.3 |
Node (Ω) | 107.6° | ± 24 |
Notes | n | |
Reference | Tok2021b | |
Equinox | | |
Last observation | | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
97.6 |
0.904 |
2001 |
96.8 |
0.892 |
2002 |
96.0 |
0.881 |
2003 |
95.1 |
0.869 |
2004 |
94.2 |
0.857 |
2005 |
93.3 |
0.845 |
2006 |
92.4 |
0.833 |
2007 |
91.4 |
0.820 |
2008 |
90.4 |
0.808 |
2009 |
89.3 |
0.795 |
2010 |
88.3 |
0.782 |
2011 |
87.2 |
0.768 |
2012 |
86.0 |
0.755 |
2013 |
84.9 |
0.741 |
2014 |
83.6 |
0.728 |
2015 |
82.4 |
0.714 |
2016 |
81.0 |
0.700 |
2017 |
79.6 |
0.685 |
2018 |
78.2 |
0.671 |
2019 |
76.7 |
0.656 |
2020 |
75.1 |
0.641 |
2021 |
73.5 |
0.626 |
2022 |
71.8 |
0.611 |
2023 |
69.9 |
0.596 |
2024 |
68.0 |
0.581 |
2025 |
66.0 |
0.565 |
2026 |
63.9 |
0.550 |
2027 |
61.6 |
0.534 |
2028 |
59.2 |
0.519 |
2029 |
56.7 |
0.503 |
2030 |
54.0 |
0.488 |
|
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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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