23171-1349 BU 182 AB
23h 17m 05.05s -13° 51' 03.3" P.A. 228.00 sep 0.7 mag 8.77,9.08 Sp F8IV dist. 66.31 pc (216.3 l.y.)
| Coord 2000 |
23171-1349 |
|
Discov num |
BU 182 |
|
Comp |
AB |
|
Coord arcsec 2000 |
23 17 05.05 -13 51 03.3 |
|
| Date first |
1873 |
|
Date last |
2021 |
|
Obs |
85 |
|
| Pa first |
45 |
|
Pa last |
227.9 |
|
P.A. Now (θ) |
227.9° |
|
| Sep first |
0.8 |
|
Sep last |
0.729 |
|
Sep. Now (ρ) |
0.733" |
|
| Mag pri |
8.77 |
|
Mag sec |
9.08 |
|
delta mag (ΔM) |
0.31 |
|
Spectral class |
F8IV (yellow-white) |
|
| Pri motion ra |
-050 |
|
Sec motion ra |
|
|
| Pri motion dec |
-119 |
|
Sec motion dec |
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| Notes |
N
O
P
(See Notes, Orbital solution, 100-year proper motion) |
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This double is physical.
23171-1349 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
165604 |
23 17 05 -13 51 03 |
BU 182 AB |
2021 |
85 |
228 |
0.7 |
8.77 |
9.08 |
0.31 |
Y |
<=== |
| Show |
|
165604 |
23 17 05 -13 51 03 |
BU 182 AB,C |
2000 |
9 |
41 |
177.3 |
8.16 |
14.28 |
6.12 |
|
|
| Show |
HD 219617 |
165604 |
23 17 05 -13 51 03 |
BU 182 AB,D |
2014 |
11 |
102 |
87.3 |
8.16 |
11.95 |
3.79 |
|
|
| Show |
|
165604 |
23 17 05 -13 51 03 |
LDS 6393 AB,E |
2013 |
11 |
52 |
18.4 |
8.16 |
16.80 |
8.64 |
|
|
Quintuple system
6 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Aquarius |
|
SAO |
165604 |
|
HIP |
114962 |
|
Tycho2 |
5827-01181-1 |
|
| HD |
219617 |
|
GC |
32412 |
|
ADS |
16644 |
|
BD |
BD-14 6437 |
|
| Distance |
66.31 |
|
Distance ly |
216.3 |
|
ORBITAL ELEMENTS
| Period (P) | 388y | ± 29 |
Periastron (T) | 1928.6y | ± 1.8 |
Semi-major axis (a) | 0.957a | ± 0.047 |
| Eccentricity (e) | 0.464 | ± 0.041 |
Inclination (i) | 86.93° | ± 0.07 |
Longitude of periastron (ω) | 93.7° | ± 5.3 |
| Node (Ω) | 44.34° | ± 0.21 |
Notes | n | |
Reference | Mdz2017 | |
| Equinox | 2000 | |
Last observation | | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
226.4 |
0.814 |
| 2001 |
226.5 |
0.812 |
| 2002 |
226.5 |
0.810 |
| 2003 |
226.6 |
0.808 |
| 2004 |
226.6 |
0.806 |
| 2005 |
226.7 |
0.803 |
| 2006 |
226.8 |
0.801 |
| 2007 |
226.8 |
0.798 |
| 2008 |
226.9 |
0.795 |
| 2009 |
227.0 |
0.792 |
| 2010 |
227.0 |
0.789 |
| 2011 |
227.1 |
0.785 |
| 2012 |
227.1 |
0.782 |
| 2013 |
227.2 |
0.778 |
| 2014 |
227.3 |
0.774 |
| 2015 |
227.4 |
0.770 |
| 2016 |
227.4 |
0.766 |
| 2017 |
227.5 |
0.761 |
| 2018 |
227.6 |
0.757 |
| 2019 |
227.6 |
0.752 |
| 2020 |
227.7 |
0.748 |
| 2021 |
227.8 |
0.743 |
| 2022 |
227.8 |
0.738 |
| 2023 |
227.9 |
0.733 |
| 2024 |
228.0 |
0.727 |
| 2025 |
228.1 |
0.722 |
| 2026 |
228.2 |
0.717 |
| 2027 |
228.2 |
0.711 |
| 2028 |
228.3 |
0.706 |
| 2029 |
228.4 |
0.700 |
| 2030 |
228.5 |
0.694 |
|
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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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